Cheap Flights from Denver to Sofia (DEN to SOF)

Discover more affordable routes and cheaper dates from Denver to Sofia (DEN to SOF) within a date range.

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US$331.32

8:10pm - 7:55pm
Sun Jul 27th 2025

38h 45m
Denver (DEN) → Sofia (SOF)

2 Stops

Sun Jul 27th 2025 Icelandair · FI 672 Depart at 8:10pm from Denver (DEN) Fly for 7h 15m Arrive at 9:25am in Reykjavik (KEF)

Layover in Reykjavik for 15h 45m

Tue Jul 29th 2025 Icelandair · FI 202 Depart at 1:10am from Reykjavik (KEF) Fly for 3h 10m Arrive at 6:20am in Copenhagen (CPH)

Layover in Copenhagen for 9h 55m

Tue Jul 29th 2025 Ryanair · FR 3606 Depart at 4:15pm from Copenhagen (CPH) Fly for 2h 40m Arrive at 7:55pm in Sofia (SOF)

Book Flight
US$338

4:40pm - 4:05pm
Wed Jul 30th 2025

38h 25m
Denver (DEN) → Sofia (SOF)

2 Stops

Wed Jul 30th 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 19h 10m

Fri Aug 1st 2025 Icelandair · FI 202 Depart at 1:10am from Reykjavik (KEF) Fly for 3h 10m Arrive at 6:20am in Copenhagen (CPH)

Layover in Copenhagen for 6h 5m

Fri Aug 1st 2025 Ryanair · FR 3606 Depart at 12:25pm from Copenhagen (CPH) Fly for 2h 40m Arrive at 4:05pm in Sofia (SOF)

Book Flight
US$347.16

4:40pm - 10:25am
Tue Jul 15th 2025

32h 45m
Denver (DEN) → Sofia (SOF)

3 Stops

Tue Jul 15th 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 1h 50m

Wed Jul 16th 2025 Icelandair · FI 562 Depart at 7:50am from Reykjavik (KEF) Fly for 4h 45m Arrive at 2:35pm in Rome (FCO)

Layover in Rome for 5h 0m

Wed Jul 16th 2025 Ryanair · FR 7077 Depart at 7:35pm from Rome (FCO) Fly for 1h 10m Arrive at 8:45pm in Bari (BRI)

Layover in Bari for 11h 20m

Thu Jul 17th 2025 Ryanair · FR 5454 Depart at 8:05am from Bari (BRI) Fly for 1h 20m Arrive at 10:25am in Sofia (SOF)

Book Flight
US$347.54

4:40pm - 8:55am
Sat Jul 19th 2025

55h 15m
Denver (DEN) → Sofia (SOF)

3 Stops

Sat Jul 19th 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 1h 50m

Sun Jul 20th 2025 Icelandair · FI 562 Depart at 7:50am from Reykjavik (KEF) Fly for 4h 45m Arrive at 2:35pm in Rome (FCO)

Layover in Rome for 17h 10m

Mon Jul 21st 2025 Ryanair · FR 5816 Depart at 7:45am from Rome (FCO) Fly for 1h 10m Arrive at 8:55am in Bari (BRI)

Layover in Bari for 21h 40m

Tue Jul 22nd 2025 Ryanair · FR 5454 Depart at 6:35am from Bari (BRI) Fly for 1h 20m Arrive at 8:55am in Sofia (SOF)

Book Flight
US$350.23

8:10pm - 4:40pm
Tue Jul 22nd 2025

59h 30m
Denver (DEN) → Sofia (SOF)

3 Stops

Tue Jul 22nd 2025 Icelandair · FI 672 Depart at 8:10pm from Denver (DEN) Fly for 7h 15m Arrive at 9:25am in Reykjavik (KEF)

Layover in Reykjavik for 22h 25m

Thu Jul 24th 2025 Icelandair · FI 562 Depart at 7:50am from Reykjavik (KEF) Fly for 4h 45m Arrive at 2:35pm in Rome (FCO)

Layover in Rome for 8h 35m

Thu Jul 24th 2025 Ryanair · FR 5816 Depart at 11:10pm from Rome (FCO) Fly for 1h 10m Arrive at 12:20am in Bari (BRI)

Layover in Bari for 14h 0m

Fri Jul 25th 2025 Wizz Air · W6 4362 Depart at 2:20pm from Bari (BRI) Fly for 1h 20m Arrive at 4:40pm in Sofia (SOF)

Book Flight
US$357.43

4:40pm - 10:35pm
Sat Jul 19th 2025

44h 55m
Denver (DEN) → Sofia (SOF)

3 Stops

Sat Jul 19th 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 1h 50m

Sun Jul 20th 2025 Icelandair · FI 562 Depart at 7:50am from Reykjavik (KEF) Fly for 4h 45m Arrive at 2:35pm in Rome (FCO)

Layover in Rome for 17h 10m

Mon Jul 21st 2025 Ryanair · FR 5816 Depart at 7:45am from Rome (FCO) Fly for 1h 10m Arrive at 8:55am in Bari (BRI)

Layover in Bari for 11h 20m

Mon Jul 21st 2025 Ryanair · FR 5459 Depart at 8:15pm from Bari (BRI) Fly for 1h 20m Arrive at 10:35pm in Sofia (SOF)

Book Flight
US$357.82

4:40pm - 8:55am
Sun Jul 20th 2025

31h 15m
Denver (DEN) → Sofia (SOF)

3 Stops

Sun Jul 20th 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 2h 0m

Mon Jul 21st 2025 Icelandair · FI 590 Depart at 8:00am from Reykjavik (KEF) Fly for 4h 10m Arrive at 2:10pm in Milan (MXP)

Layover in Milan for 4h 30m

Mon Jul 21st 2025 Ryanair · FR 278 Depart at 6:40pm from Milan (MXP) Fly for 1h 40m Arrive at 8:20pm in Bari (BRI)

Layover in Bari for 10h 15m

Tue Jul 22nd 2025 Ryanair · FR 5454 Depart at 6:35am from Bari (BRI) Fly for 1h 20m Arrive at 8:55am in Sofia (SOF)

Book Flight
US$358.45

4:40pm - 8:55am
Sun Jul 27th 2025

31h 15m
Denver (DEN) → Sofia (SOF)

3 Stops

Sun Jul 27th 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 1h 50m

Mon Jul 28th 2025 Icelandair · FI 562 Depart at 7:50am from Reykjavik (KEF) Fly for 4h 45m Arrive at 2:35pm in Rome (FCO)

Layover in Rome for 8h 0m

Mon Jul 28th 2025 Ryanair · FR 7075 Depart at 10:35pm from Rome (FCO) Fly for 1h 10m Arrive at 11:45pm in Bari (BRI)

Layover in Bari for 6h 50m

Tue Jul 29th 2025 Ryanair · FR 5454 Depart at 6:35am from Bari (BRI) Fly for 1h 20m Arrive at 8:55am in Sofia (SOF)

Book Flight
US$359.15

4:40pm - 8:55pm
Mon Jul 21st 2025

43h 15m
Denver (DEN) → Sofia (SOF)

3 Stops

Mon Jul 21st 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 1h 35m

Tue Jul 22nd 2025 Icelandair · FI 306 Depart at 7:35am from Reykjavik (KEF) Fly for 3h 10m Arrive at 12:45pm in Stockholm (ARN)

Layover in Stockholm for 20h 35m

Wed Jul 23rd 2025 Ryanair · FR 756 Depart at 9:20am from Stockholm (ARN) Fly for 2h 15m Arrive at 11:35am in Vienna (VIE)

Layover in Vienna for 6h 45m

Wed Jul 23rd 2025 Ryanair · FR 182 Depart at 6:20pm from Vienna (VIE) Fly for 1h 35m Arrive at 8:55pm in Sofia (SOF)

Book Flight
US$360.56

8:10pm - 8:35pm
Sun Jul 20th 2025

39h 25m
Denver (DEN) → Sofia (SOF)

3 Stops

Sun Jul 20th 2025 Icelandair · FI 672 Depart at 8:10pm from Denver (DEN) Fly for 7h 15m Arrive at 9:25am in Reykjavik (KEF)

Layover in Reykjavik for 1h 5m

Mon Jul 21st 2025 Icelandair · FI 308 Depart at 10:30am from Reykjavik (KEF) Fly for 3h 10m Arrive at 3:40pm in Stockholm (ARN)

Layover in Stockholm for 18h 25m

Tue Jul 22nd 2025 Ryanair · FR 756 Depart at 10:05am from Stockholm (ARN) Fly for 2h 15m Arrive at 12:20pm in Vienna (VIE)

Layover in Vienna for 5h 40m

Tue Jul 22nd 2025 Ryanair · FR 182 Depart at 6:00pm from Vienna (VIE) Fly for 1h 35m Arrive at 8:35pm in Sofia (SOF)

Book Flight
US$360.60

4:40pm - 4:40pm
Mon Jul 28th 2025

39h 0m
Denver (DEN) → Sofia (SOF)

3 Stops

Mon Jul 28th 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 1h 50m

Tue Jul 29th 2025 Icelandair · FI 562 Depart at 7:50am from Reykjavik (KEF) Fly for 4h 45m Arrive at 2:35pm in Rome (FCO)

Layover in Rome for 16h 55m

Wed Jul 30th 2025 Ryanair · FR 7075 Depart at 7:30am from Rome (FCO) Fly for 1h 10m Arrive at 8:40am in Bari (BRI)

Layover in Bari for 5h 40m

Wed Jul 30th 2025 Wizz Air · W6 4362 Depart at 2:20pm from Bari (BRI) Fly for 1h 20m Arrive at 4:40pm in Sofia (SOF)

Book Flight
US$368.22

4:40pm - 11:25am
Tue Jul 22nd 2025

33h 45m
Denver (DEN) → Sofia (SOF)

3 Stops

Tue Jul 22nd 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 1h 20m

Wed Jul 23rd 2025 Icelandair · FI 536 Depart at 7:20am from Reykjavik (KEF) Fly for 3h 45m Arrive at 1:05pm in Prague (PRG)

Layover in Prague for 5h 45m

Wed Jul 23rd 2025 Ryanair · FR 3527 Depart at 6:50pm from Prague (PRG) Fly for 1h 25m Arrive at 8:15pm in Milan (BGY)

Layover in Milan for 12h 10m

Thu Jul 24th 2025 Ryanair · FR 3661 Depart at 8:25am from Milan (BGY) Fly for 2h 0m Arrive at 11:25am in Sofia (SOF)

Book Flight
US$378.81

4:40pm - 2:00pm
Thu Jul 17th 2025

36h 20m
Denver (DEN) → Sofia (SOF)

3 Stops

Thu Jul 17th 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 1h 20m

Fri Jul 18th 2025 Icelandair · FI 536 Depart at 7:20am from Reykjavik (KEF) Fly for 3h 45m Arrive at 1:05pm in Prague (PRG)

Layover in Prague for 5h 0m

Fri Jul 18th 2025 Ryanair · FR 8541 Depart at 6:05pm from Prague (PRG) Fly for 1h 50m Arrive at 7:55pm in Rome (CIA)

Layover in Rome for 15h 20m

Sat Jul 19th 2025 Ryanair · FR 626 Depart at 11:15am from Rome (CIA) Fly for 1h 45m Arrive at 2:00pm in Sofia (SOF)

Book Flight
US$379.47

4:40pm - 10:55am
Wed Jul 30th 2025

33h 15m
Denver (DEN) → Sofia (SOF)

3 Stops

Wed Jul 30th 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 1h 35m

Thu Jul 31st 2025 Icelandair · FI 306 Depart at 7:35am from Reykjavik (KEF) Fly for 3h 10m Arrive at 12:45pm in Stockholm (ARN)

Layover in Stockholm for 5h 45m

Thu Jul 31st 2025 Ryanair · FR 4626 Depart at 6:30pm from Stockholm (ARN) Fly for 1h 55m Arrive at 8:25pm in Kraków (KRK)

Layover in Kraków for 11h 50m

Fri Aug 1st 2025 Wizz Air · W6 4454 Depart at 8:15am from Kraków (KRK) Fly for 1h 40m Arrive at 10:55am in Sofia (SOF)

Book Flight
US$381

8:10pm - 7:55pm
Sun Jul 20th 2025

38h 45m
Denver (DEN) → Sofia (SOF)

2 Stops

Sun Jul 20th 2025 Icelandair · FI 672 Depart at 8:10pm from Denver (DEN) Fly for 7h 15m Arrive at 9:25am in Reykjavik (KEF)

Layover in Reykjavik for 15h 45m

Tue Jul 22nd 2025 Icelandair · FI 202 Depart at 1:10am from Reykjavik (KEF) Fly for 3h 10m Arrive at 6:20am in Copenhagen (CPH)

Layover in Copenhagen for 9h 55m

Tue Jul 22nd 2025 Ryanair · FR 3606 Depart at 4:15pm from Copenhagen (CPH) Fly for 2h 40m Arrive at 7:55pm in Sofia (SOF)

Book Flight
US$381.94

4:40pm - 12:20am
Mon Jul 21st 2025

22h 40m
Denver (DEN) → Sofia (SOF)

3 Stops

Mon Jul 21st 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 1h 50m

Tue Jul 22nd 2025 Icelandair · FI 562 Depart at 7:50am from Reykjavik (KEF) Fly for 4h 45m Arrive at 2:35pm in Rome (FCO)

Layover in Rome for 2h 20m

Tue Jul 22nd 2025 Ryanair · FR 4852 Depart at 4:55pm from Rome (FCO) Fly for 1h 20m Arrive at 6:15pm in Catania (CTA)

Layover in Catania for 3h 25m

Tue Jul 22nd 2025 Ryanair · FR 5036 Depart at 9:40pm from Catania (CTA) Fly for 1h 40m Arrive at 12:20am in Sofia (SOF)

Book Flight
US$383

8:10pm - 2:15pm
Thu Jul 31st 2025

33h 5m
Denver (DEN) → Sofia (SOF)

3 Stops

Thu Jul 31st 2025 Icelandair · FI 672 Depart at 8:10pm from Denver (DEN) Fly for 7h 15m Arrive at 9:25am in Reykjavik (KEF)

Layover in Reykjavik for 0h 45m

Fri Aug 1st 2025 Icelandair · FI 308 Depart at 10:10am from Reykjavik (KEF) Fly for 3h 10m Arrive at 3:20pm in Stockholm (ARN)

Layover in Stockholm for 5h 0m

Fri Aug 1st 2025 airBaltic · BT 110 Depart at 8:20pm from Stockholm (ARN) Fly for 1h 5m Arrive at 10:25pm in Riga (RIX)

Layover in Riga for 13h 15m

Sat Aug 2nd 2025 airBaltic · BT 467 Depart at 11:40am from Riga (RIX) Fly for 2h 35m Arrive at 2:15pm in Sofia (SOF)

Book Flight
US$384.63

4:40pm - 9:30am
Mon Jul 28th 2025

31h 50m
Denver (DEN) → Sofia (SOF)

3 Stops

Mon Jul 28th 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 1h 35m

Tue Jul 29th 2025 Icelandair · FI 306 Depart at 7:35am from Reykjavik (KEF) Fly for 3h 10m Arrive at 12:45pm in Stockholm (ARN)

Layover in Stockholm for 2h 40m

Tue Jul 29th 2025 Ryanair · FR 2879 Depart at 3:25pm from Stockholm (ARN) Fly for 2h 50m Arrive at 6:15pm in Milan (BGY)

Layover in Milan for 12h 15m

Wed Jul 30th 2025 Ryanair · FR 3437 Depart at 6:30am from Milan (BGY) Fly for 2h 0m Arrive at 9:30am in Sofia (SOF)

Book Flight
US$384.94

4:40pm - 9:20am
Thu Jul 17th 2025

31h 40m
Denver (DEN) → Sofia (SOF)

3 Stops

Thu Jul 17th 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 1h 20m

Fri Jul 18th 2025 Icelandair · FI 536 Depart at 7:20am from Reykjavik (KEF) Fly for 3h 45m Arrive at 1:05pm in Prague (PRG)

Layover in Prague for 8h 50m

Fri Jul 18th 2025 Ryanair · FR 3527 Depart at 9:55pm from Prague (PRG) Fly for 1h 25m Arrive at 11:20pm in Milan (BGY)

Layover in Milan for 7h 0m

Sat Jul 19th 2025 Ryanair · FR 3437 Depart at 6:20am from Milan (BGY) Fly for 2h 0m Arrive at 9:20am in Sofia (SOF)

Book Flight
US$386

8:10pm - 2:55am
Tue Jul 29th 2025

21h 45m
Denver (DEN) → Sofia (SOF)

3 Stops

Tue Jul 29th 2025 Icelandair · FI 672 Depart at 8:10pm from Denver (DEN) Fly for 7h 15m Arrive at 9:25am in Reykjavik (KEF)

Layover in Reykjavik for 1h 15m

Wed Jul 30th 2025 Icelandair · FI 322 Depart at 10:40am from Reykjavik (KEF) Fly for 2h 45m Arrive at 3:25pm in Oslo (OSL)

Layover in Oslo for 5h 30m

Wed Jul 30th 2025 Air Serbia · JU 393 Depart at 8:55pm from Oslo (OSL) Fly for 2h 45m Arrive at 11:40pm in Belgrade (BEG)

Layover in Belgrade for 1h 0m

Thu Jul 31st 2025 Air Serbia · JU 116 Depart at 12:40am from Belgrade (BEG) Fly for 1h 15m Arrive at 2:55am in Sofia (SOF)

Book Flight
US$388

8:10pm - 2:55am
Sat Jul 26th 2025

21h 45m
Denver (DEN) → Sofia (SOF)

3 Stops

Sat Jul 26th 2025 Icelandair · FI 672 Depart at 8:10pm from Denver (DEN) Fly for 7h 15m Arrive at 9:25am in Reykjavik (KEF)

Layover in Reykjavik for 1h 15m

Sun Jul 27th 2025 Icelandair · FI 322 Depart at 10:40am from Reykjavik (KEF) Fly for 2h 45m Arrive at 3:25pm in Oslo (OSL)

Layover in Oslo for 5h 30m

Sun Jul 27th 2025 Air Serbia · JU 393 Depart at 8:55pm from Oslo (OSL) Fly for 2h 45m Arrive at 11:40pm in Belgrade (BEG)

Layover in Belgrade for 1h 0m

Mon Jul 28th 2025 Air Serbia · JU 116 Depart at 12:40am from Belgrade (BEG) Fly for 1h 15m Arrive at 2:55am in Sofia (SOF)

Book Flight
US$388.54

4:40pm - 12:20am
Mon Jul 28th 2025

22h 40m
Denver (DEN) → Sofia (SOF)

3 Stops

Mon Jul 28th 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 1h 50m

Tue Jul 29th 2025 Icelandair · FI 562 Depart at 7:50am from Reykjavik (KEF) Fly for 4h 45m Arrive at 2:35pm in Rome (FCO)

Layover in Rome for 2h 20m

Tue Jul 29th 2025 Ryanair · FR 4852 Depart at 4:55pm from Rome (FCO) Fly for 1h 20m Arrive at 6:15pm in Catania (CTA)

Layover in Catania for 3h 25m

Tue Jul 29th 2025 Ryanair · FR 5036 Depart at 9:40pm from Catania (CTA) Fly for 1h 40m Arrive at 12:20am in Sofia (SOF)

Book Flight
US$391

4:40pm - 11:40am
Mon Jul 28th 2025

34h 0m
Denver (DEN) → Sofia (SOF)

2 Stops

Mon Jul 28th 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 4h 40m

Tue Jul 29th 2025 Icelandair · FI 322 Depart at 10:40am from Reykjavik (KEF) Fly for 2h 45m Arrive at 3:25pm in Oslo (OSL)

Layover in Oslo for 16h 10m

Wed Jul 30th 2025 Norwegian Air Shuttle · DY 1576 Depart at 7:35am from Oslo (OSL) Fly for 3h 5m Arrive at 11:40am in Sofia (SOF)

Book Flight
US$398.32

4:40pm - 10:40am
Wed Jul 30th 2025

33h 0m
Denver (DEN) → Sofia (SOF)

3 Stops

Wed Jul 30th 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 1h 35m

Thu Jul 31st 2025 Icelandair · FI 306 Depart at 7:35am from Reykjavik (KEF) Fly for 3h 10m Arrive at 12:45pm in Stockholm (ARN)

Layover in Stockholm for 4h 0m

Thu Jul 31st 2025 Ryanair · FR 4537 Depart at 4:45pm from Stockholm (ARN) Fly for 4h 0m Arrive at 9:45pm in Rhodes (RHO)

Layover in Rhodes for 11h 15m

Fri Aug 1st 2025 Ryanair · FR 6766 Depart at 9:00am from Rhodes (RHO) Fly for 1h 40m Arrive at 10:40am in Sofia (SOF)

Book Flight
US$401

4:40pm - 2:55am
Thu Jul 24th 2025

25h 15m
Denver (DEN) → Sofia (SOF)

3 Stops

Thu Jul 24th 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 2h 25m

Fri Jul 25th 2025 Icelandair · FI 596 Depart at 8:25am from Reykjavik (KEF) Fly for 4h 20m Arrive at 2:45pm in Barcelona (BCN)

Layover in Barcelona for 5h 50m

Fri Jul 25th 2025 Air Serbia · JU 585 Depart at 8:35pm from Barcelona (BCN) Fly for 2h 30m Arrive at 11:05pm in Belgrade (BEG)

Layover in Belgrade for 1h 35m

Sat Jul 26th 2025 Air Serbia · JU 116 Depart at 12:40am from Belgrade (BEG) Fly for 1h 15m Arrive at 2:55am in Sofia (SOF)

Book Flight
US$404.46

4:40pm - 8:45am
Fri Jul 25th 2025

31h 5m
Denver (DEN) → Sofia (SOF)

3 Stops

Fri Jul 25th 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 2h 0m

Sat Jul 26th 2025 Icelandair · FI 590 Depart at 8:00am from Reykjavik (KEF) Fly for 4h 10m Arrive at 2:10pm in Milan (MXP)

Layover in Milan for 6h 20m

Sat Jul 26th 2025 Austrian Airlines · OS 516 Depart at 8:30pm from Milan (MXP) Fly for 1h 25m Arrive at 9:55pm in Vienna (VIE)

Layover in Vienna for 8h 15m

Sun Jul 27th 2025 Ryanair · FR 182 Depart at 6:10am from Vienna (VIE) Fly for 1h 35m Arrive at 8:45am in Sofia (SOF)

Book Flight
US$411

4:40pm - 9:00am
Sat Jul 19th 2025

31h 20m
Denver (DEN) → Sofia (SOF)

3 Stops

Sat Jul 19th 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 1h 50m

Sun Jul 20th 2025 Icelandair · FI 562 Depart at 7:50am from Reykjavik (KEF) Fly for 4h 45m Arrive at 2:35pm in Rome (FCO)

Layover in Rome for 6h 0m

Sun Jul 20th 2025 SKY express · GQ 823 Depart at 8:35pm from Rome (FCO) Fly for 2h 0m Arrive at 11:35pm in Athens (ATH)

Layover in Athens for 7h 40m

Mon Jul 21st 2025 SKY express · GQ 680 Depart at 7:15am from Athens (ATH) Fly for 1h 45m Arrive at 9:00am in Sofia (SOF)

Book Flight
US$412

4:40pm - 11:00pm
Tue Jul 29th 2025

21h 20m
Denver (DEN) → Sofia (SOF)

2 Stops

Tue Jul 29th 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 1h 20m

Wed Jul 30th 2025 Icelandair · FI 532 Depart at 7:20am from Reykjavik (KEF) Fly for 3h 45m Arrive at 1:05pm in Munich (MUC)

Layover in Munich for 7h 5m

Wed Jul 30th 2025 Lufthansa · LH 1706 Depart at 8:10pm from Munich (MUC) Fly for 1h 50m Arrive at 11:00pm in Sofia (SOF)

Book Flight
US$412

4:40pm - 11:00pm
Sun Jul 27th 2025

21h 20m
Denver (DEN) → Sofia (SOF)

2 Stops

Sun Jul 27th 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 1h 20m

Mon Jul 28th 2025 Icelandair · FI 532 Depart at 7:20am from Reykjavik (KEF) Fly for 3h 45m Arrive at 1:05pm in Munich (MUC)

Layover in Munich for 7h 5m

Mon Jul 28th 2025 Lufthansa · LH 1706 Depart at 8:10pm from Munich (MUC) Fly for 1h 50m Arrive at 11:00pm in Sofia (SOF)

Book Flight
US$412

4:40pm - 11:00pm
Sat Jul 26th 2025

21h 20m
Denver (DEN) → Sofia (SOF)

2 Stops

Sat Jul 26th 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 1h 20m

Sun Jul 27th 2025 Icelandair · FI 532 Depart at 7:20am from Reykjavik (KEF) Fly for 3h 45m Arrive at 1:05pm in Munich (MUC)

Layover in Munich for 7h 5m

Sun Jul 27th 2025 Lufthansa · LH 1706 Depart at 8:10pm from Munich (MUC) Fly for 1h 50m Arrive at 11:00pm in Sofia (SOF)

Book Flight
US$412

4:40pm - 11:00pm
Mon Jul 21st 2025

21h 20m
Denver (DEN) → Sofia (SOF)

2 Stops

Mon Jul 21st 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 1h 20m

Tue Jul 22nd 2025 Icelandair · FI 532 Depart at 7:20am from Reykjavik (KEF) Fly for 3h 45m Arrive at 1:05pm in Munich (MUC)

Layover in Munich for 7h 5m

Tue Jul 22nd 2025 Lufthansa · LH 1706 Depart at 8:10pm from Munich (MUC) Fly for 1h 50m Arrive at 11:00pm in Sofia (SOF)

Book Flight
US$414

4:40pm - 2:55am
Tue Jul 22nd 2025

25h 15m
Denver (DEN) → Sofia (SOF)

3 Stops

Tue Jul 22nd 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 1h 20m

Wed Jul 23rd 2025 Icelandair · FI 536 Depart at 7:20am from Reykjavik (KEF) Fly for 3h 45m Arrive at 1:05pm in Prague (PRG)

Layover in Prague for 7h 30m

Wed Jul 23rd 2025 Air Serbia · JU 175 Depart at 8:35pm from Prague (PRG) Fly for 1h 55m Arrive at 10:30pm in Belgrade (BEG)

Layover in Belgrade for 2h 10m

Thu Jul 24th 2025 Air Serbia · JU 116 Depart at 12:40am from Belgrade (BEG) Fly for 1h 15m Arrive at 2:55am in Sofia (SOF)

Book Flight
US$414

4:40pm - 2:55am
Thu Jul 17th 2025

25h 15m
Denver (DEN) → Sofia (SOF)

3 Stops

Thu Jul 17th 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 1h 20m

Fri Jul 18th 2025 Icelandair · FI 536 Depart at 7:20am from Reykjavik (KEF) Fly for 3h 45m Arrive at 1:05pm in Prague (PRG)

Layover in Prague for 7h 30m

Fri Jul 18th 2025 Air Serbia · JU 175 Depart at 8:35pm from Prague (PRG) Fly for 1h 55m Arrive at 10:30pm in Belgrade (BEG)

Layover in Belgrade for 2h 10m

Sat Jul 19th 2025 Air Serbia · JU 116 Depart at 12:40am from Belgrade (BEG) Fly for 1h 15m Arrive at 2:55am in Sofia (SOF)

Book Flight
US$415

4:40pm - 2:55am
Tue Jul 15th 2025

25h 15m
Denver (DEN) → Sofia (SOF)

3 Stops

Tue Jul 15th 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 1h 20m

Wed Jul 16th 2025 Icelandair · FI 536 Depart at 7:20am from Reykjavik (KEF) Fly for 3h 45m Arrive at 1:05pm in Prague (PRG)

Layover in Prague for 7h 30m

Wed Jul 16th 2025 Air Serbia · JU 175 Depart at 8:35pm from Prague (PRG) Fly for 1h 55m Arrive at 10:30pm in Belgrade (BEG)

Layover in Belgrade for 2h 10m

Thu Jul 17th 2025 Air Serbia · JU 116 Depart at 12:40am from Belgrade (BEG) Fly for 1h 15m Arrive at 2:55am in Sofia (SOF)

Book Flight
US$415

4:40pm - 2:55am
Thu Jul 31st 2025

25h 15m
Denver (DEN) → Sofia (SOF)

3 Stops

Thu Jul 31st 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 1h 20m

Fri Aug 1st 2025 Icelandair · FI 536 Depart at 7:20am from Reykjavik (KEF) Fly for 3h 45m Arrive at 1:05pm in Prague (PRG)

Layover in Prague for 7h 30m

Fri Aug 1st 2025 Air Serbia · JU 175 Depart at 8:35pm from Prague (PRG) Fly for 1h 55m Arrive at 10:30pm in Belgrade (BEG)

Layover in Belgrade for 2h 10m

Sat Aug 2nd 2025 Air Serbia · JU 116 Depart at 12:40am from Belgrade (BEG) Fly for 1h 15m Arrive at 2:55am in Sofia (SOF)

Book Flight
US$415

4:40pm - 12:05pm
Sat Jul 19th 2025

34h 25m
Denver (DEN) → Sofia (SOF)

2 Stops

Sat Jul 19th 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 1h 50m

Sun Jul 20th 2025 Icelandair · FI 562 Depart at 7:50am from Reykjavik (KEF) Fly for 4h 45m Arrive at 2:35pm in Rome (FCO)

Layover in Rome for 18h 45m

Mon Jul 21st 2025 ITA Airways · AZ 520 Depart at 9:20am from Rome (FCO) Fly for 1h 45m Arrive at 12:05pm in Sofia (SOF)

Book Flight
US$421

4:40pm - 12:10pm
Tue Jul 15th 2025

34h 30m
Denver (DEN) → Sofia (SOF)

2 Stops

Tue Jul 15th 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 1h 50m

Wed Jul 16th 2025 Icelandair · FI 562 Depart at 7:50am from Reykjavik (KEF) Fly for 4h 45m Arrive at 2:35pm in Rome (FCO)

Layover in Rome for 18h 35m

Thu Jul 17th 2025 Bulgaria Air · FB 450 Depart at 9:10am from Rome (FCO) Fly for 2h 0m Arrive at 12:10pm in Sofia (SOF)

Book Flight
US$423

4:40pm - 12:10pm
Sun Jul 20th 2025

34h 30m
Denver (DEN) → Sofia (SOF)

2 Stops

Sun Jul 20th 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 1h 50m

Mon Jul 21st 2025 Icelandair · FI 562 Depart at 7:50am from Reykjavik (KEF) Fly for 4h 45m Arrive at 2:35pm in Rome (FCO)

Layover in Rome for 18h 35m

Tue Jul 22nd 2025 Bulgaria Air · FB 450 Depart at 9:10am from Rome (FCO) Fly for 2h 0m Arrive at 12:10pm in Sofia (SOF)

Book Flight
US$423

4:40pm - 12:30am
Tue Jul 15th 2025

22h 50m
Denver (DEN) → Sofia (SOF)

2 Stops

Tue Jul 15th 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 2h 25m

Wed Jul 16th 2025 Icelandair · FI 596 Depart at 8:25am from Reykjavik (KEF) Fly for 4h 20m Arrive at 2:45pm in Barcelona (BCN)

Layover in Barcelona for 5h 50m

Wed Jul 16th 2025 Wizz Air · W6 4406 Depart at 8:35pm from Barcelona (BCN) Fly for 2h 55m Arrive at 12:30am in Sofia (SOF)

Book Flight
US$424

8:10pm - 2:55am
Thu Jul 31st 2025

21h 45m
Denver (DEN) → Sofia (SOF)

3 Stops

Thu Jul 31st 2025 Icelandair · FI 672 Depart at 8:10pm from Denver (DEN) Fly for 7h 15m Arrive at 9:25am in Reykjavik (KEF)

Layover in Reykjavik for 0h 45m

Fri Aug 1st 2025 Icelandair · FI 308 Depart at 10:10am from Reykjavik (KEF) Fly for 3h 10m Arrive at 3:20pm in Stockholm (ARN)

Layover in Stockholm for 5h 15m

Fri Aug 1st 2025 Air Serbia · JU 383 Depart at 8:35pm from Stockholm (ARN) Fly for 2h 30m Arrive at 11:05pm in Belgrade (BEG)

Layover in Belgrade for 1h 35m

Sat Aug 2nd 2025 Air Serbia · JU 116 Depart at 12:40am from Belgrade (BEG) Fly for 1h 15m Arrive at 2:55am in Sofia (SOF)

Book Flight
US$428

4:40pm - 11:00pm
Tue Jul 15th 2025

21h 20m
Denver (DEN) → Sofia (SOF)

2 Stops

Tue Jul 15th 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 1h 20m

Wed Jul 16th 2025 Icelandair · FI 532 Depart at 7:20am from Reykjavik (KEF) Fly for 3h 45m Arrive at 1:05pm in Munich (MUC)

Layover in Munich for 7h 5m

Wed Jul 16th 2025 Lufthansa · LH 1706 Depart at 8:10pm from Munich (MUC) Fly for 1h 50m Arrive at 11:00pm in Sofia (SOF)

Book Flight
US$429

4:40pm - 11:00pm
Sun Jul 20th 2025

21h 20m
Denver (DEN) → Sofia (SOF)

2 Stops

Sun Jul 20th 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 1h 20m

Mon Jul 21st 2025 Icelandair · FI 532 Depart at 7:20am from Reykjavik (KEF) Fly for 3h 45m Arrive at 1:05pm in Munich (MUC)

Layover in Munich for 7h 5m

Mon Jul 21st 2025 Lufthansa · LH 1706 Depart at 8:10pm from Munich (MUC) Fly for 1h 50m Arrive at 11:00pm in Sofia (SOF)

Book Flight
US$430

4:40pm - 11:00pm
Mon Jul 28th 2025

21h 20m
Denver (DEN) → Sofia (SOF)

2 Stops

Mon Jul 28th 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 1h 20m

Tue Jul 29th 2025 Icelandair · FI 532 Depart at 7:20am from Reykjavik (KEF) Fly for 3h 45m Arrive at 1:05pm in Munich (MUC)

Layover in Munich for 7h 5m

Tue Jul 29th 2025 Lufthansa · LH 1706 Depart at 8:10pm from Munich (MUC) Fly for 1h 50m Arrive at 11:00pm in Sofia (SOF)

Book Flight
US$431

4:40pm - 11:00pm
Tue Jul 22nd 2025

21h 20m
Denver (DEN) → Sofia (SOF)

2 Stops

Tue Jul 22nd 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 1h 20m

Wed Jul 23rd 2025 Icelandair · FI 532 Depart at 7:20am from Reykjavik (KEF) Fly for 3h 45m Arrive at 1:05pm in Munich (MUC)

Layover in Munich for 7h 5m

Wed Jul 23rd 2025 Lufthansa · LH 1706 Depart at 8:10pm from Munich (MUC) Fly for 1h 50m Arrive at 11:00pm in Sofia (SOF)

Book Flight
US$434

8:10pm - 2:00am
Tue Jul 29th 2025

20h 50m
Denver (DEN) → Sofia (SOF)

3 Stops

Tue Jul 29th 2025 Icelandair · FI 672 Depart at 8:10pm from Denver (DEN) Fly for 7h 15m Arrive at 9:25am in Reykjavik (KEF)

Layover in Reykjavik for 1h 15m

Wed Jul 30th 2025 Icelandair · FI 322 Depart at 10:40am from Reykjavik (KEF) Fly for 2h 45m Arrive at 3:25pm in Oslo (OSL)

Layover in Oslo for 4h 20m

Wed Jul 30th 2025 LOT Polish Airlines · LO 484 Depart at 7:45pm from Oslo (OSL) Fly for 1h 55m Arrive at 9:40pm in Warsaw (WAW)

Layover in Warsaw for 1h 15m

Wed Jul 30th 2025 LOT Polish Airlines · LO 635 Depart at 10:55pm from Warsaw (WAW) Fly for 2h 5m Arrive at 2:00am in Sofia (SOF)

Book Flight
US$434

4:40pm - 2:00am
Wed Jul 30th 2025

24h 20m
Denver (DEN) → Sofia (SOF)

3 Stops

Wed Jul 30th 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 4h 40m

Thu Jul 31st 2025 Icelandair · FI 322 Depart at 10:40am from Reykjavik (KEF) Fly for 2h 45m Arrive at 3:25pm in Oslo (OSL)

Layover in Oslo for 4h 20m

Thu Jul 31st 2025 LOT Polish Airlines · LO 484 Depart at 7:45pm from Oslo (OSL) Fly for 1h 55m Arrive at 9:40pm in Warsaw (WAW)

Layover in Warsaw for 1h 15m

Thu Jul 31st 2025 LOT Polish Airlines · LO 635 Depart at 10:55pm from Warsaw (WAW) Fly for 2h 5m Arrive at 2:00am in Sofia (SOF)

Book Flight
US$437

8:10pm - 2:00am
Sat Jul 26th 2025

20h 50m
Denver (DEN) → Sofia (SOF)

3 Stops

Sat Jul 26th 2025 Icelandair · FI 672 Depart at 8:10pm from Denver (DEN) Fly for 7h 15m Arrive at 9:25am in Reykjavik (KEF)

Layover in Reykjavik for 1h 15m

Sun Jul 27th 2025 Icelandair · FI 322 Depart at 10:40am from Reykjavik (KEF) Fly for 2h 45m Arrive at 3:25pm in Oslo (OSL)

Layover in Oslo for 4h 20m

Sun Jul 27th 2025 LOT Polish Airlines · LO 484 Depart at 7:45pm from Oslo (OSL) Fly for 1h 55m Arrive at 9:40pm in Warsaw (WAW)

Layover in Warsaw for 1h 15m

Sun Jul 27th 2025 LOT Polish Airlines · LO 635 Depart at 10:55pm from Warsaw (WAW) Fly for 2h 5m Arrive at 2:00am in Sofia (SOF)

Book Flight
US$437.42

8:10pm - 9:40am
Sun Jul 27th 2025

28h 30m
Denver (DEN) → Sofia (SOF)

3 Stops

Sun Jul 27th 2025 Icelandair · FI 672 Depart at 8:10pm from Denver (DEN) Fly for 7h 15m Arrive at 9:25am in Reykjavik (KEF)

Layover in Reykjavik for 1h 5m

Mon Jul 28th 2025 Icelandair · FI 472 Depart at 10:30am from Reykjavik (KEF) Fly for 3h 10m Arrive at 2:40pm in London (LGW)

Layover in London for 4h 50m

Mon Jul 28th 2025 Wizz Air Malta · W4 2804 Depart at 7:30pm from London (LGW) Fly for 2h 15m Arrive at 10:45pm in Vienna (VIE)

Layover in Vienna for 8h 20m

Tue Jul 29th 2025 Ryanair · FR 3766 Depart at 7:05am from Vienna (VIE) Fly for 1h 35m Arrive at 9:40am in Sofia (SOF)

Book Flight
US$438

4:40pm - 6:40pm
Mon Jul 21st 2025

17h 0m
Denver (DEN) → Sofia (SOF)

2 Stops

Mon Jul 21st 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 1h 20m

Tue Jul 22nd 2025 Icelandair · FI 532 Depart at 7:20am from Reykjavik (KEF) Fly for 3h 45m Arrive at 1:05pm in Munich (MUC)

Layover in Munich for 2h 45m

Tue Jul 22nd 2025 Lufthansa · LH 1704 Depart at 3:50pm from Munich (MUC) Fly for 1h 50m Arrive at 6:40pm in Sofia (SOF)

Book Flight
US$439

4:40pm - 6:40pm
Tue Jul 29th 2025

17h 0m
Denver (DEN) → Sofia (SOF)

2 Stops

Tue Jul 29th 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 1h 20m

Wed Jul 30th 2025 Icelandair · FI 532 Depart at 7:20am from Reykjavik (KEF) Fly for 3h 45m Arrive at 1:05pm in Munich (MUC)

Layover in Munich for 2h 45m

Wed Jul 30th 2025 Lufthansa · LH 1704 Depart at 3:50pm from Munich (MUC) Fly for 1h 50m Arrive at 6:40pm in Sofia (SOF)

Book Flight
US$440

8:10pm - 2:00am
Tue Jul 22nd 2025

20h 50m
Denver (DEN) → Sofia (SOF)

3 Stops

Tue Jul 22nd 2025 Icelandair · FI 672 Depart at 8:10pm from Denver (DEN) Fly for 7h 15m Arrive at 9:25am in Reykjavik (KEF)

Layover in Reykjavik for 1h 5m

Wed Jul 23rd 2025 Icelandair · FI 308 Depart at 10:30am from Reykjavik (KEF) Fly for 3h 10m Arrive at 3:40pm in Stockholm (ARN)

Layover in Stockholm for 3h 40m

Wed Jul 23rd 2025 LOT Polish Airlines · LO 458 Depart at 7:20pm from Stockholm (ARN) Fly for 1h 40m Arrive at 9:00pm in Warsaw (WAW)

Layover in Warsaw for 1h 55m

Wed Jul 23rd 2025 LOT Polish Airlines · LO 635 Depart at 10:55pm from Warsaw (WAW) Fly for 2h 5m Arrive at 2:00am in Sofia (SOF)

Book Flight
US$440

8:10pm - 2:00am
Tue Jul 29th 2025

20h 50m
Denver (DEN) → Sofia (SOF)

3 Stops

Tue Jul 29th 2025 Icelandair · FI 672 Depart at 8:10pm from Denver (DEN) Fly for 7h 15m Arrive at 9:25am in Reykjavik (KEF)

Layover in Reykjavik for 1h 5m

Wed Jul 30th 2025 Icelandair · FI 308 Depart at 10:30am from Reykjavik (KEF) Fly for 3h 10m Arrive at 3:40pm in Stockholm (ARN)

Layover in Stockholm for 3h 40m

Wed Jul 30th 2025 LOT Polish Airlines · LO 458 Depart at 7:20pm from Stockholm (ARN) Fly for 1h 40m Arrive at 9:00pm in Warsaw (WAW)

Layover in Warsaw for 1h 55m

Wed Jul 30th 2025 LOT Polish Airlines · LO 635 Depart at 10:55pm from Warsaw (WAW) Fly for 2h 5m Arrive at 2:00am in Sofia (SOF)

Book Flight
US$441

4:40pm - 6:40pm
Mon Jul 28th 2025

17h 0m
Denver (DEN) → Sofia (SOF)

2 Stops

Mon Jul 28th 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 1h 20m

Tue Jul 29th 2025 Icelandair · FI 532 Depart at 7:20am from Reykjavik (KEF) Fly for 3h 45m Arrive at 1:05pm in Munich (MUC)

Layover in Munich for 2h 45m

Tue Jul 29th 2025 Lufthansa · LH 1704 Depart at 3:50pm from Munich (MUC) Fly for 1h 50m Arrive at 6:40pm in Sofia (SOF)

Book Flight
US$441

4:40pm - 6:40pm
Tue Jul 15th 2025

17h 0m
Denver (DEN) → Sofia (SOF)

2 Stops

Tue Jul 15th 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 1h 20m

Wed Jul 16th 2025 Icelandair · FI 532 Depart at 7:20am from Reykjavik (KEF) Fly for 3h 45m Arrive at 1:05pm in Munich (MUC)

Layover in Munich for 2h 45m

Wed Jul 16th 2025 Lufthansa · LH 1704 Depart at 3:50pm from Munich (MUC) Fly for 1h 50m Arrive at 6:40pm in Sofia (SOF)

Book Flight
US$441

8:10pm - 2:00am
Thu Jul 31st 2025

20h 50m
Denver (DEN) → Sofia (SOF)

3 Stops

Thu Jul 31st 2025 Icelandair · FI 672 Depart at 8:10pm from Denver (DEN) Fly for 7h 15m Arrive at 9:25am in Reykjavik (KEF)

Layover in Reykjavik for 0h 45m

Fri Aug 1st 2025 Icelandair · FI 308 Depart at 10:10am from Reykjavik (KEF) Fly for 3h 10m Arrive at 3:20pm in Stockholm (ARN)

Layover in Stockholm for 4h 0m

Fri Aug 1st 2025 LOT Polish Airlines · LO 458 Depart at 7:20pm from Stockholm (ARN) Fly for 1h 40m Arrive at 9:00pm in Warsaw (WAW)

Layover in Warsaw for 1h 55m

Fri Aug 1st 2025 LOT Polish Airlines · LO 635 Depart at 10:55pm from Warsaw (WAW) Fly for 2h 5m Arrive at 2:00am in Sofia (SOF)

Book Flight
US$443

4:40pm - 6:40pm
Thu Jul 17th 2025

17h 0m
Denver (DEN) → Sofia (SOF)

2 Stops

Thu Jul 17th 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 1h 20m

Fri Jul 18th 2025 Icelandair · FI 532 Depart at 7:20am from Reykjavik (KEF) Fly for 3h 45m Arrive at 1:05pm in Munich (MUC)

Layover in Munich for 2h 45m

Fri Jul 18th 2025 Lufthansa · LH 1704 Depart at 3:50pm from Munich (MUC) Fly for 1h 50m Arrive at 6:40pm in Sofia (SOF)

Book Flight
US$453

4:40pm - 10:50pm
Sun Jul 27th 2025

21h 10m
Denver (DEN) → Sofia (SOF)

3 Stops

Sun Jul 27th 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 1h 20m

Mon Jul 28th 2025 Icelandair · FI 532 Depart at 7:20am from Reykjavik (KEF) Fly for 3h 45m Arrive at 1:05pm in Munich (MUC)

Layover in Munich for 3h 55m

Mon Jul 28th 2025 Lufthansa · LH 115 Depart at 5:00pm from Munich (MUC) Fly for 1h 0m Arrive at 6:00pm in Frankfurt (FRA)

Layover in Frankfurt for 1h 40m

Mon Jul 28th 2025 Lufthansa · LH 1430 Depart at 7:40pm from Frankfurt (FRA) Fly for 2h 10m Arrive at 10:50pm in Sofia (SOF)

Book Flight
US$456

8:10pm - 2:55am
Thu Jul 17th 2025

21h 45m
Denver (DEN) → Sofia (SOF)

3 Stops

Thu Jul 17th 2025 Icelandair · FI 672 Depart at 8:10pm from Denver (DEN) Fly for 7h 15m Arrive at 9:25am in Reykjavik (KEF)

Layover in Reykjavik for 1h 15m

Fri Jul 18th 2025 Icelandair · FI 322 Depart at 10:40am from Reykjavik (KEF) Fly for 2h 45m Arrive at 3:25pm in Oslo (OSL)

Layover in Oslo for 5h 30m

Fri Jul 18th 2025 Air Serbia · JU 393 Depart at 8:55pm from Oslo (OSL) Fly for 2h 45m Arrive at 11:40pm in Belgrade (BEG)

Layover in Belgrade for 1h 0m

Sat Jul 19th 2025 Air Serbia · JU 116 Depart at 12:40am from Belgrade (BEG) Fly for 1h 15m Arrive at 2:55am in Sofia (SOF)

Book Flight
US$459

8:10pm - 2:55am
Sat Jul 19th 2025

21h 45m
Denver (DEN) → Sofia (SOF)

3 Stops

Sat Jul 19th 2025 Icelandair · FI 672 Depart at 8:10pm from Denver (DEN) Fly for 7h 15m Arrive at 9:25am in Reykjavik (KEF)

Layover in Reykjavik for 1h 5m

Sun Jul 20th 2025 Icelandair · FI 546 Depart at 10:30am from Reykjavik (KEF) Fly for 3h 25m Arrive at 3:55pm in Paris (CDG)

Layover in Paris for 4h 35m

Sun Jul 20th 2025 Air Serbia · JU 243 Depart at 8:30pm from Paris (CDG) Fly for 2h 20m Arrive at 10:50pm in Belgrade (BEG)

Layover in Belgrade for 1h 50m

Mon Jul 21st 2025 Air Serbia · JU 116 Depart at 12:40am from Belgrade (BEG) Fly for 1h 15m Arrive at 2:55am in Sofia (SOF)

Book Flight
US$459.20

7:50pm - 9:00am
Thu Jul 31st 2025

28h 10m
Denver (DEN) → Sofia (SOF)

2 Stops

Thu Jul 31st 2025 Turkish Airlines · TK 202 Depart at 7:50pm from Denver (DEN) Fly for 11h 45m Arrive at 4:35pm in Istanbul (IST)

Layover in Istanbul for 3h 50m

Fri Aug 1st 2025 Turkish Airlines · TK 1889 Depart at 8:25pm from Istanbul (IST) Fly for 2h 20m Arrive at 9:45pm in Vienna (VIE)

Layover in Vienna for 8h 40m

Sat Aug 2nd 2025 Ryanair · FR 3766 Depart at 6:25am from Vienna (VIE) Fly for 1h 35m Arrive at 9:00am in Sofia (SOF)

Book Flight
US$462

8:10pm - 2:00am
Tue Jul 15th 2025

20h 50m
Denver (DEN) → Sofia (SOF)

3 Stops

Tue Jul 15th 2025 Icelandair · FI 672 Depart at 8:10pm from Denver (DEN) Fly for 7h 15m Arrive at 9:25am in Reykjavik (KEF)

Layover in Reykjavik for 1h 5m

Wed Jul 16th 2025 Icelandair · FI 506 Depart at 10:30am from Reykjavik (KEF) Fly for 3h 15m Arrive at 3:45pm in Amsterdam (AMS)

Layover in Amsterdam for 4h 0m

Wed Jul 16th 2025 LOT Polish Airlines · LO 268 Depart at 7:45pm from Amsterdam (AMS) Fly for 2h 0m Arrive at 9:45pm in Warsaw (WAW)

Layover in Warsaw for 1h 10m

Wed Jul 16th 2025 LOT Polish Airlines · LO 635 Depart at 10:55pm from Warsaw (WAW) Fly for 2h 5m Arrive at 2:00am in Sofia (SOF)

Book Flight
US$464.49

7:50pm - 9:40am
Sun Jul 27th 2025

28h 50m
Denver (DEN) → Sofia (SOF)

2 Stops

Sun Jul 27th 2025 Turkish Airlines · TK 202 Depart at 7:50pm from Denver (DEN) Fly for 11h 45m Arrive at 4:35pm in Istanbul (IST)

Layover in Istanbul for 3h 50m

Mon Jul 28th 2025 Turkish Airlines · TK 1889 Depart at 8:25pm from Istanbul (IST) Fly for 2h 20m Arrive at 9:45pm in Vienna (VIE)

Layover in Vienna for 9h 20m

Tue Jul 29th 2025 Ryanair · FR 3766 Depart at 7:05am from Vienna (VIE) Fly for 1h 35m Arrive at 9:40am in Sofia (SOF)

Book Flight
US$466

10:52am - 11:00pm
Sat Jul 19th 2025

27h 8m
Denver (DEN) → Sofia (SOF)

3 Stops

Sat Jul 19th 2025 Frontier Airlines · F9 2706 Depart at 10:52am from Denver (DEN) Fly for 3h 34m Arrive at 4:26pm in Washington, D.C. (BWI)

Layover in Washington, D.C. for 4h 4m

Sat Jul 19th 2025 Icelandair · FI 642 Depart at 8:30pm from Washington, D.C. (BWI) Fly for 5h 55m Arrive at 6:25am in Reykjavik (KEF)

Layover in Reykjavik for 0h 55m

Sun Jul 20th 2025 Icelandair · FI 532 Depart at 7:20am from Reykjavik (KEF) Fly for 3h 45m Arrive at 1:05pm in Munich (MUC)

Layover in Munich for 7h 5m

Sun Jul 20th 2025 Lufthansa · LH 1706 Depart at 8:10pm from Munich (MUC) Fly for 1h 50m Arrive at 11:00pm in Sofia (SOF)

Book Flight
US$466.87

7:50pm - 8:45am
Fri Jul 25th 2025

27h 55m
Denver (DEN) → Sofia (SOF)

2 Stops

Fri Jul 25th 2025 Turkish Airlines · TK 202 Depart at 7:50pm from Denver (DEN) Fly for 11h 45m Arrive at 4:35pm in Istanbul (IST)

Layover in Istanbul for 3h 50m

Sat Jul 26th 2025 Turkish Airlines · TK 1889 Depart at 8:25pm from Istanbul (IST) Fly for 2h 20m Arrive at 9:45pm in Vienna (VIE)

Layover in Vienna for 8h 25m

Sun Jul 27th 2025 Ryanair · FR 182 Depart at 6:10am from Vienna (VIE) Fly for 1h 35m Arrive at 8:45am in Sofia (SOF)

Book Flight
US$470

4:40pm - 8:00pm
Sat Jul 26th 2025

18h 20m
Denver (DEN) → Sofia (SOF)

2 Stops

Sat Jul 26th 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 1h 20m

Sun Jul 27th 2025 Icelandair · FI 536 Depart at 7:20am from Reykjavik (KEF) Fly for 3h 45m Arrive at 1:05pm in Prague (PRG)

Layover in Prague for 4h 10m

Sun Jul 27th 2025 Bulgaria Air · FB 302 Depart at 5:15pm from Prague (PRG) Fly for 1h 45m Arrive at 8:00pm in Sofia (SOF)

Book Flight
US$475

4:40pm - 6:40pm
Sun Jul 27th 2025

17h 0m
Denver (DEN) → Sofia (SOF)

2 Stops

Sun Jul 27th 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 1h 20m

Mon Jul 28th 2025 Icelandair · FI 532 Depart at 7:20am from Reykjavik (KEF) Fly for 3h 45m Arrive at 1:05pm in Munich (MUC)

Layover in Munich for 2h 45m

Mon Jul 28th 2025 Lufthansa · LH 1704 Depart at 3:50pm from Munich (MUC) Fly for 1h 50m Arrive at 6:40pm in Sofia (SOF)

Book Flight
US$476

4:40pm - 2:00am
Sat Jul 19th 2025

24h 20m
Denver (DEN) → Sofia (SOF)

3 Stops

Sat Jul 19th 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 1h 50m

Sun Jul 20th 2025 Icelandair · FI 562 Depart at 7:50am from Reykjavik (KEF) Fly for 4h 45m Arrive at 2:35pm in Rome (FCO)

Layover in Rome for 4h 30m

Sun Jul 20th 2025 LOT Polish Airlines · LO 304 Depart at 7:05pm from Rome (FCO) Fly for 2h 30m Arrive at 9:35pm in Warsaw (WAW)

Layover in Warsaw for 1h 20m

Sun Jul 20th 2025 LOT Polish Airlines · LO 635 Depart at 10:55pm from Warsaw (WAW) Fly for 2h 5m Arrive at 2:00am in Sofia (SOF)

Book Flight
US$477

4:40pm - 6:40pm
Sat Jul 26th 2025

17h 0m
Denver (DEN) → Sofia (SOF)

2 Stops

Sat Jul 26th 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 1h 20m

Sun Jul 27th 2025 Icelandair · FI 532 Depart at 7:20am from Reykjavik (KEF) Fly for 3h 45m Arrive at 1:05pm in Munich (MUC)

Layover in Munich for 2h 45m

Sun Jul 27th 2025 Lufthansa · LH 1704 Depart at 3:50pm from Munich (MUC) Fly for 1h 50m Arrive at 6:40pm in Sofia (SOF)

Book Flight
US$478

4:40pm - 6:40pm
Tue Jul 22nd 2025

17h 0m
Denver (DEN) → Sofia (SOF)

2 Stops

Tue Jul 22nd 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 1h 20m

Wed Jul 23rd 2025 Icelandair · FI 532 Depart at 7:20am from Reykjavik (KEF) Fly for 3h 45m Arrive at 1:05pm in Munich (MUC)

Layover in Munich for 2h 45m

Wed Jul 23rd 2025 Lufthansa · LH 1704 Depart at 3:50pm from Munich (MUC) Fly for 1h 50m Arrive at 6:40pm in Sofia (SOF)

Book Flight
US$479

10:52am - 8:00pm
Sat Jul 19th 2025

24h 8m
Denver (DEN) → Sofia (SOF)

3 Stops

Sat Jul 19th 2025 Frontier Airlines · F9 2706 Depart at 10:52am from Denver (DEN) Fly for 3h 34m Arrive at 4:26pm in Washington, D.C. (BWI)

Layover in Washington, D.C. for 4h 4m

Sat Jul 19th 2025 Icelandair · FI 642 Depart at 8:30pm from Washington, D.C. (BWI) Fly for 5h 55m Arrive at 6:25am in Reykjavik (KEF)

Layover in Reykjavik for 1h 55m

Sun Jul 20th 2025 Icelandair · FI 590 Depart at 8:20am from Reykjavik (KEF) Fly for 4h 10m Arrive at 2:30pm in Milan (MXP)

Layover in Milan for 2h 35m

Sun Jul 20th 2025 Bulgaria Air · FB 456 Depart at 5:05pm from Milan (MXP) Fly for 1h 55m Arrive at 8:00pm in Sofia (SOF)

Book Flight
US$485

4:40pm - 8:00pm
Thu Jul 31st 2025

18h 20m
Denver (DEN) → Sofia (SOF)

2 Stops

Thu Jul 31st 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 1h 35m

Fri Aug 1st 2025 Icelandair · FI 528 Depart at 7:35am from Reykjavik (KEF) Fly for 3h 35m Arrive at 1:10pm in Berlin (BER)

Layover in Berlin for 3h 40m

Fri Aug 1st 2025 Bulgaria Air · FB 320 Depart at 4:50pm from Berlin (BER) Fly for 2h 10m Arrive at 8:00pm in Sofia (SOF)

Book Flight
US$485

4:40pm - 8:00pm
Tue Jul 29th 2025

18h 20m
Denver (DEN) → Sofia (SOF)

2 Stops

Tue Jul 29th 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 1h 35m

Wed Jul 30th 2025 Icelandair · FI 528 Depart at 7:35am from Reykjavik (KEF) Fly for 3h 35m Arrive at 1:10pm in Berlin (BER)

Layover in Berlin for 3h 40m

Wed Jul 30th 2025 Bulgaria Air · FB 320 Depart at 4:50pm from Berlin (BER) Fly for 2h 10m Arrive at 8:00pm in Sofia (SOF)

Book Flight
US$496

8:10pm - 11:00pm
Fri Jul 25th 2025

17h 50m
Denver (DEN) → Sofia (SOF)

2 Stops

Fri Jul 25th 2025 Icelandair · FI 672 Depart at 8:10pm from Denver (DEN) Fly for 7h 15m Arrive at 9:25am in Reykjavik (KEF)

Layover in Reykjavik for 0h 45m

Sat Jul 26th 2025 Icelandair · FI 530 Depart at 10:10am from Reykjavik (KEF) Fly for 3h 45m Arrive at 3:55pm in Munich (MUC)

Layover in Munich for 4h 15m

Sat Jul 26th 2025 Lufthansa · LH 1706 Depart at 8:10pm from Munich (MUC) Fly for 1h 50m Arrive at 11:00pm in Sofia (SOF)

Book Flight
US$496.83

7:50pm - 11:40pm
Sat Jul 26th 2025

18h 50m
Denver (DEN) → Sofia (SOF)

2 Stops

Sat Jul 26th 2025 Turkish Airlines · TK 202 Depart at 7:50pm from Denver (DEN) Fly for 11h 45m Arrive at 4:35pm in Istanbul (IST)

Layover in Istanbul for 1h 55m

Sun Jul 27th 2025 Turkish Airlines · TK 1037 Depart at 6:30pm from Istanbul (IST) Fly for 2h 5m Arrive at 7:35pm in Budapest (BUD)

Layover in Budapest for 1h 40m

Sun Jul 27th 2025 Ryanair · FR 5570 Depart at 9:15pm from Budapest (BUD) Fly for 1h 25m Arrive at 11:40pm in Sofia (SOF)

Book Flight
US$506

4:40pm - 6:40pm
Sun Jul 20th 2025

17h 0m
Denver (DEN) → Sofia (SOF)

2 Stops

Sun Jul 20th 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 1h 20m

Mon Jul 21st 2025 Icelandair · FI 532 Depart at 7:20am from Reykjavik (KEF) Fly for 3h 45m Arrive at 1:05pm in Munich (MUC)

Layover in Munich for 2h 45m

Mon Jul 21st 2025 Lufthansa · LH 1704 Depart at 3:50pm from Munich (MUC) Fly for 1h 50m Arrive at 6:40pm in Sofia (SOF)

Book Flight
US$507

4:00pm - 12:30am
Sat Jul 19th 2025

23h 30m
Denver (DEN) → Sofia (SOF)

2 Stops

Sat Jul 19th 2025 Frontier Airlines · F9 1229 Depart at 4:00pm from Denver (DEN) Fly for 2h 49m Arrive at 5:49pm in San Francisco (SFO)

Layover in San Francisco for 2h 21m

Sat Jul 19th 2025 Vueling · VY 9792 Depart at 8:10pm from San Francisco (SFO) Fly for 11h 35m Arrive at 4:45pm in Barcelona (BCN)

Layover in Barcelona for 3h 50m

Sun Jul 20th 2025 Wizz Air · W6 4406 Depart at 8:35pm from Barcelona (BCN) Fly for 2h 55m Arrive at 12:30am in Sofia (SOF)

Book Flight
US$509

8:10pm - 2:00am
Thu Jul 24th 2025

20h 50m
Denver (DEN) → Sofia (SOF)

3 Stops

Thu Jul 24th 2025 Icelandair · FI 672 Depart at 8:10pm from Denver (DEN) Fly for 7h 15m Arrive at 9:25am in Reykjavik (KEF)

Layover in Reykjavik for 1h 5m

Fri Jul 25th 2025 Icelandair · FI 546 Depart at 10:30am from Reykjavik (KEF) Fly for 3h 25m Arrive at 3:55pm in Paris (CDG)

Layover in Paris for 3h 50m

Fri Jul 25th 2025 LOT Polish Airlines · LO 336 Depart at 7:45pm from Paris (CDG) Fly for 2h 15m Arrive at 10:00pm in Warsaw (WAW)

Layover in Warsaw for 0h 55m

Fri Jul 25th 2025 LOT Polish Airlines · LO 635 Depart at 10:55pm from Warsaw (WAW) Fly for 2h 5m Arrive at 2:00am in Sofia (SOF)

Book Flight
US$520

4:40pm - 12:30am
Thu Jul 24th 2025

22h 50m
Denver (DEN) → Sofia (SOF)

2 Stops

Thu Jul 24th 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 2h 25m

Fri Jul 25th 2025 Icelandair · FI 596 Depart at 8:25am from Reykjavik (KEF) Fly for 4h 20m Arrive at 2:45pm in Barcelona (BCN)

Layover in Barcelona for 5h 50m

Fri Jul 25th 2025 Wizz Air · W6 4406 Depart at 8:35pm from Barcelona (BCN) Fly for 2h 55m Arrive at 12:30am in Sofia (SOF)

Book Flight
US$526

7:50pm - 8:25pm
Wed Jul 30th 2025

15h 35m
Denver (DEN) → Sofia (SOF)

1 Stop

Wed Jul 30th 2025 Turkish Airlines · TK 202 Depart at 7:50pm from Denver (DEN) Fly for 11h 45m Arrive at 4:35pm in Istanbul (IST)

Layover in Istanbul for 2h 25m

Thu Jul 31st 2025 Turkish Airlines · TK 1029 Depart at 7:00pm from Istanbul (IST) Fly for 1h 25m Arrive at 8:25pm in Sofia (SOF)

Book Flight
US$526

7:50pm - 8:25pm
Tue Jul 22nd 2025

15h 35m
Denver (DEN) → Sofia (SOF)

1 Stop

Tue Jul 22nd 2025 Turkish Airlines · TK 202 Depart at 7:50pm from Denver (DEN) Fly for 11h 45m Arrive at 4:35pm in Istanbul (IST)

Layover in Istanbul for 2h 25m

Wed Jul 23rd 2025 Turkish Airlines · TK 1029 Depart at 7:00pm from Istanbul (IST) Fly for 1h 25m Arrive at 8:25pm in Sofia (SOF)

Book Flight
US$526

7:50pm - 8:25pm
Thu Jul 24th 2025

15h 35m
Denver (DEN) → Sofia (SOF)

1 Stop

Thu Jul 24th 2025 Turkish Airlines · TK 202 Depart at 7:50pm from Denver (DEN) Fly for 11h 45m Arrive at 4:35pm in Istanbul (IST)

Layover in Istanbul for 2h 25m

Fri Jul 25th 2025 Turkish Airlines · TK 1029 Depart at 7:00pm from Istanbul (IST) Fly for 1h 25m Arrive at 8:25pm in Sofia (SOF)

Book Flight
US$526

7:50pm - 8:25pm
Wed Jul 23rd 2025

15h 35m
Denver (DEN) → Sofia (SOF)

1 Stop

Wed Jul 23rd 2025 Turkish Airlines · TK 202 Depart at 7:50pm from Denver (DEN) Fly for 11h 45m Arrive at 4:35pm in Istanbul (IST)

Layover in Istanbul for 2h 25m

Thu Jul 24th 2025 Turkish Airlines · TK 1029 Depart at 7:00pm from Istanbul (IST) Fly for 1h 25m Arrive at 8:25pm in Sofia (SOF)

Book Flight
US$529.79

7:50pm - 12:25am
Fri Jul 25th 2025

19h 35m
Denver (DEN) → Sofia (SOF)

2 Stops

Fri Jul 25th 2025 Turkish Airlines · TK 202 Depart at 7:50pm from Denver (DEN) Fly for 11h 45m Arrive at 4:35pm in Istanbul (IST)

Layover in Istanbul for 1h 40m

Sat Jul 26th 2025 Turkish Airlines · TK 1879 Depart at 6:15pm from Istanbul (IST) Fly for 2h 25m Arrive at 7:40pm in Naples (NAP)

Layover in Naples for 2h 10m

Sat Jul 26th 2025 Ryanair · FR 5473 Depart at 9:50pm from Naples (NAP) Fly for 1h 35m Arrive at 12:25am in Sofia (SOF)

Book Flight
US$532

4:40pm - 6:40pm
Thu Jul 24th 2025

17h 0m
Denver (DEN) → Sofia (SOF)

2 Stops

Thu Jul 24th 2025 Icelandair · FI 670 Depart at 4:40pm from Denver (DEN) Fly for 7h 20m Arrive at 6:00am in Reykjavik (KEF)

Layover in Reykjavik for 1h 20m

Fri Jul 25th 2025 Icelandair · FI 532 Depart at 7:20am from Reykjavik (KEF) Fly for 3h 45m Arrive at 1:05pm in Munich (MUC)

Layover in Munich for 2h 45m

Fri Jul 25th 2025 Lufthansa · LH 1704 Depart at 3:50pm from Munich (MUC) Fly for 1h 50m Arrive at 6:40pm in Sofia (SOF)

Book Flight
US$538

7:50pm - 8:25pm
Tue Jul 29th 2025

15h 35m
Denver (DEN) → Sofia (SOF)

1 Stop

Tue Jul 29th 2025 Turkish Airlines · TK 202 Depart at 7:50pm from Denver (DEN) Fly for 11h 45m Arrive at 4:35pm in Istanbul (IST)

Layover in Istanbul for 2h 25m

Wed Jul 30th 2025 Turkish Airlines · TK 1029 Depart at 7:00pm from Istanbul (IST) Fly for 1h 25m Arrive at 8:25pm in Sofia (SOF)

Book Flight
US$538

7:50pm - 8:25pm
Mon Jul 28th 2025

15h 35m
Denver (DEN) → Sofia (SOF)

1 Stop

Mon Jul 28th 2025 Turkish Airlines · TK 202 Depart at 7:50pm from Denver (DEN) Fly for 11h 45m Arrive at 4:35pm in Istanbul (IST)

Layover in Istanbul for 2h 25m

Tue Jul 29th 2025 Turkish Airlines · TK 1029 Depart at 7:00pm from Istanbul (IST) Fly for 1h 25m Arrive at 8:25pm in Sofia (SOF)

Book Flight
US$538

7:50pm - 8:25pm
Thu Jul 31st 2025

15h 35m
Denver (DEN) → Sofia (SOF)

1 Stop

Thu Jul 31st 2025 Turkish Airlines · TK 202 Depart at 7:50pm from Denver (DEN) Fly for 11h 45m Arrive at 4:35pm in Istanbul (IST)

Layover in Istanbul for 2h 25m

Fri Aug 1st 2025 Turkish Airlines · TK 1029 Depart at 7:00pm from Istanbul (IST) Fly for 1h 25m Arrive at 8:25pm in Sofia (SOF)

Book Flight
US$538

7:50pm - 8:25pm
Sat Jul 26th 2025

15h 35m
Denver (DEN) → Sofia (SOF)

1 Stop

Sat Jul 26th 2025 Turkish Airlines · TK 202 Depart at 7:50pm from Denver (DEN) Fly for 11h 45m Arrive at 4:35pm in Istanbul (IST)

Layover in Istanbul for 2h 25m

Sun Jul 27th 2025 Turkish Airlines · TK 1029 Depart at 7:00pm from Istanbul (IST) Fly for 1h 25m Arrive at 8:25pm in Sofia (SOF)

Book Flight
US$550

8:10pm - 10:50pm
Tue Jul 22nd 2025

17h 40m
Denver (DEN) → Sofia (SOF)

2 Stops

Tue Jul 22nd 2025 Icelandair · FI 672 Depart at 8:10pm from Denver (DEN) Fly for 7h 15m Arrive at 9:25am in Reykjavik (KEF)

Layover in Reykjavik for 0h 55m

Wed Jul 23rd 2025 Icelandair · FI 522 Depart at 10:20am from Reykjavik (KEF) Fly for 3h 45m Arrive at 4:05pm in Frankfurt (FRA)

Layover in Frankfurt for 3h 35m

Wed Jul 23rd 2025 Lufthansa · LH 1430 Depart at 7:40pm from Frankfurt (FRA) Fly for 2h 10m Arrive at 10:50pm in Sofia (SOF)

Book Flight
US$551

8:10pm - 11:00pm
Fri Jul 18th 2025

17h 50m
Denver (DEN) → Sofia (SOF)

2 Stops

Fri Jul 18th 2025 Icelandair · FI 672 Depart at 8:10pm from Denver (DEN) Fly for 7h 15m Arrive at 9:25am in Reykjavik (KEF)

Layover in Reykjavik for 0h 45m

Sat Jul 19th 2025 Icelandair · FI 530 Depart at 10:10am from Reykjavik (KEF) Fly for 3h 45m Arrive at 3:55pm in Munich (MUC)

Layover in Munich for 4h 15m

Sat Jul 19th 2025 Lufthansa · LH 1706 Depart at 8:10pm from Munich (MUC) Fly for 1h 50m Arrive at 11:00pm in Sofia (SOF)

Book Flight
US$559

8:10pm - 10:50pm
Tue Jul 15th 2025

17h 40m
Denver (DEN) → Sofia (SOF)

2 Stops

Tue Jul 15th 2025 Icelandair · FI 672 Depart at 8:10pm from Denver (DEN) Fly for 7h 15m Arrive at 9:25am in Reykjavik (KEF)

Layover in Reykjavik for 0h 55m

Wed Jul 16th 2025 Icelandair · FI 522 Depart at 10:20am from Reykjavik (KEF) Fly for 3h 45m Arrive at 4:05pm in Frankfurt (FRA)

Layover in Frankfurt for 3h 35m

Wed Jul 16th 2025 Lufthansa · LH 1430 Depart at 7:40pm from Frankfurt (FRA) Fly for 2h 10m Arrive at 10:50pm in Sofia (SOF)

Book Flight
US$565

8:10pm - 10:50pm
Sun Jul 20th 2025

17h 40m
Denver (DEN) → Sofia (SOF)

2 Stops

Sun Jul 20th 2025 Icelandair · FI 672 Depart at 8:10pm from Denver (DEN) Fly for 7h 15m Arrive at 9:25am in Reykjavik (KEF)

Layover in Reykjavik for 0h 55m

Mon Jul 21st 2025 Icelandair · FI 522 Depart at 10:20am from Reykjavik (KEF) Fly for 3h 45m Arrive at 4:05pm in Frankfurt (FRA)

Layover in Frankfurt for 3h 35m

Mon Jul 21st 2025 Lufthansa · LH 1430 Depart at 7:40pm from Frankfurt (FRA) Fly for 2h 10m Arrive at 10:50pm in Sofia (SOF)

Book Flight
US$623

4:15pm - 6:20pm
Thu Jul 31st 2025

17h 5m
Denver (DEN) → Sofia (SOF)

2 Stops

Thu Jul 31st 2025 Lufthansa · LH 481 Depart at 4:15pm from Denver (DEN) Fly for 9h 45m Arrive at 10:00am in Munich (MUC)

Layover in Munich for 1h 30m

Fri Aug 1st 2025 Lufthansa · LH 6320 Depart at 11:30am from Munich (MUC) Fly for 1h 5m Arrive at 12:35pm in Vienna (VIE)

Layover in Vienna for 3h 15m

Fri Aug 1st 2025 Austrian Airlines · OS 797 Depart at 3:50pm from Vienna (VIE) Fly for 1h 30m Arrive at 6:20pm in Sofia (SOF)

Book Flight
US$655

6:00am - 8:25pm
Wed Jul 23rd 2025

29h 25m
Denver (DEN) → Sofia (SOF)

2 Stops

Wed Jul 23rd 2025 Turkish Airlines · TK 8618 Depart at 6:00am from Denver (DEN) Fly for 2h 41m Arrive at 9:41am in Chicago (ORD)

Layover in Chicago for 10h 9m

Wed Jul 23rd 2025 Turkish Airlines · TK 6 Depart at 7:50pm from Chicago (ORD) Fly for 10h 50m Arrive at 2:40pm in Istanbul (IST)

Layover in Istanbul for 4h 20m

Thu Jul 24th 2025 Turkish Airlines · TK 1029 Depart at 7:00pm from Istanbul (IST) Fly for 1h 25m Arrive at 8:25pm in Sofia (SOF)

Book Flight
US$655

6:00am - 2:45pm
Wed Jul 23rd 2025

47h 45m
Denver (DEN) → Sofia (SOF)

2 Stops

Wed Jul 23rd 2025 Turkish Airlines · TK 8618 Depart at 6:00am from Denver (DEN) Fly for 2h 41m Arrive at 9:41am in Chicago (ORD)

Layover in Chicago for 10h 9m

Wed Jul 23rd 2025 Turkish Airlines · TK 6 Depart at 7:50pm from Chicago (ORD) Fly for 10h 50m Arrive at 2:40pm in Istanbul (IST)

Layover in Istanbul for 22h 40m

Fri Jul 25th 2025 Turkish Airlines · TK 1031 Depart at 1:20pm from Istanbul (IST) Fly for 1h 25m Arrive at 2:45pm in Sofia (SOF)

Book Flight
US$656

5:59pm - 6:20pm
Thu Jul 31st 2025

15h 21m
Denver (DEN) → Sofia (SOF)

2 Stops

Thu Jul 31st 2025 Lufthansa · LH 447 Depart at 5:59pm from Denver (DEN) Fly for 9h 31m Arrive at 11:30am in Frankfurt (FRA)

Layover in Frankfurt for 1h 20m

Fri Aug 1st 2025 Lufthansa · LH 6334 Depart at 12:50pm from Frankfurt (FRA) Fly for 1h 25m Arrive at 2:15pm in Vienna (VIE)

Layover in Vienna for 1h 35m

Fri Aug 1st 2025 Austrian Airlines · OS 797 Depart at 3:50pm from Vienna (VIE) Fly for 1h 30m Arrive at 6:20pm in Sofia (SOF)

Book Flight
US$661

6:00am - 2:45pm
Wed Jul 23rd 2025

47h 45m
Denver (DEN) → Sofia (SOF)

2 Stops

Wed Jul 23rd 2025 Turkish Airlines · TK 8618 Depart at 6:00am from Denver (DEN) Fly for 2h 41m Arrive at 9:41am in Chicago (ORD)

Layover in Chicago for 14h 4m

Wed Jul 23rd 2025 Turkish Airlines · TK 156 Depart at 11:45pm from Chicago (ORD) Fly for 10h 20m Arrive at 6:05pm in Istanbul (IST)

Layover in Istanbul for 19h 15m

Fri Jul 25th 2025 Turkish Airlines · TK 1031 Depart at 1:20pm from Istanbul (IST) Fly for 1h 25m Arrive at 2:45pm in Sofia (SOF)

Book Flight
US$665

8:25pm - 6:40pm
Mon Jul 28th 2025

13h 15m
Denver (DEN) → Sofia (SOF)

1 Stop

Mon Jul 28th 2025 United Airlines · UA 760 Depart at 8:25pm from Denver (DEN) Fly for 9h 40m Arrive at 2:05pm in Munich (MUC)

Layover in Munich for 1h 45m

Tue Jul 29th 2025 United Airlines · UA 9134 Depart at 3:50pm from Munich (MUC) Fly for 1h 50m Arrive at 6:40pm in Sofia (SOF)

Book Flight
US$722

8:25pm - 6:40pm
Sat Jul 19th 2025

13h 15m
Denver (DEN) → Sofia (SOF)

1 Stop

Sat Jul 19th 2025 United Airlines · UA 760 Depart at 8:25pm from Denver (DEN) Fly for 9h 40m Arrive at 2:05pm in Munich (MUC)

Layover in Munich for 1h 45m

Sun Jul 20th 2025 United Airlines · UA 9134 Depart at 3:50pm from Munich (MUC) Fly for 1h 50m Arrive at 6:40pm in Sofia (SOF)

Book Flight
US$1723

8:25pm - 6:40pm
Sat Jul 26th 2025

13h 15m
Denver (DEN) → Sofia (SOF)

1 Stop

Sat Jul 26th 2025 United Airlines · UA 760 Depart at 8:25pm from Denver (DEN) Fly for 9h 40m Arrive at 2:05pm in Munich (MUC)

Layover in Munich for 1h 45m

Sun Jul 27th 2025 United Airlines · UA 9134 Depart at 3:50pm from Munich (MUC) Fly for 1h 50m Arrive at 6:40pm in Sofia (SOF)

Book Flight

Sarah Belizaire

@sarahbb1

Have flexible travel plans or looking for alternative routes given the chaos? Check out all the connection possibilities via a super helpful site created by @ismaelyws flightlist.io thanks to @andy_travels for the recommendation #travel #flights

John Ford

@eyupitsjohn

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Roaming Sonaa

@roamingsonaa

For people wanting to maximize their trips, Flightlist is my newest travel hack for uncovering the coolest routes at irresistible prices. No stress, no annoying ads — just seamless flight booking with amazing functionality. It's designed for remote workers, backpackers, and people living abroad.

Read Sonaa's 7 Amazing Skyscanner Alternatives for Booking Travel

ANDY TRAVELS

@andy_travels

@ismaelyws Just tried out Flightlist for the first time. Really nice idea, well made, and just what I need at the moment 👍

Travel With Bender

@travelwitbender

Did you spot my recent article about how to score cheap one way flights? ✈️ FlightList is my new secret tool for discovering cheap routes, within a departure date range. Plus you can also search by country/region for departures & destinations. Powerful! 💪

Read Josh's Ultimate Guide To Find Cheap One Way Flights

Wesley Mergard

@travel.with.wes

One useful tool I've found for evaluating different departure and return dates is called FlightList.io. You can quickly scan different travel date ranges, carriers and one way flight options to easily determine the cheapest flight combinations for your trip.

Read Wesley's My Best Cheap Flight Hacks (Why Pay More?)

Cheap Flights from Denver to Sofia (DEN to SOF)

Sarah Belizaire

John Ford

Roaming Sonaa

ANDY TRAVELS

Travel With Bender

Wesley Mergard

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