Return Flights from Atlanta to Ontario (ATL to ONT)

Discover more affordable routes and cheaper dates from Atlanta to Ontario (ATL to ONT) within a date range.

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US$651

8:00am - 11:50pm
Sun Mar 2nd 2025

18h 50m
Atlanta (ATL) → Ontario (ONT)

1 Stop

6:57am - 8:02pm
Sat Mar 8th 2025

10h 5m
Ontario (ONT) → Atlanta (ATL)

1 Stop

Sun Mar 2nd 2025 Alaska Airlines · AS 377 Depart at 8:00am from Atlanta (ATL) Fly for 5h 35m Arrive at 10:35am in Seattle (SEA)

Layover in Seattle for 10h 40m

Sun Mar 2nd 2025 Alaska Airlines · AS 1003 Depart at 9:15pm from Seattle (SEA) Fly for 2h 35m Arrive at 11:50pm in Ontario (ONT)

Stay in Ontario for 5 nights — find accommodations with Booking

Sat Mar 8th 2025 Frontier Airlines · F9 1406 Depart at 6:57am from Ontario (ONT) Fly for 3h 14m Arrive at 12:11pm in Dallas (DFW)

Layover in Dallas for 4h 36m

Sat Mar 8th 2025 Frontier Airlines · F9 3022 Depart at 4:47pm from Dallas (DFW) Fly for 2h 15m Arrive at 8:02pm in Atlanta (ATL)

Book Flight
US$651

8:00am - 11:50pm
Sun Mar 2nd 2025

18h 50m
Atlanta (ATL) → Ontario (ONT)

1 Stop

4:48pm - 10:19am
Sat Mar 8th 2025

13h 31m
Ontario (ONT) → Atlanta (ATL)

1 Stop

Sun Mar 2nd 2025 Alaska Airlines · AS 377 Depart at 8:00am from Atlanta (ATL) Fly for 5h 35m Arrive at 10:35am in Seattle (SEA)

Layover in Seattle for 10h 40m

Sun Mar 2nd 2025 Alaska Airlines · AS 1003 Depart at 9:15pm from Seattle (SEA) Fly for 2h 35m Arrive at 11:50pm in Ontario (ONT)

Stay in Ontario for 5 nights — find accommodations with Booking

Sat Mar 8th 2025 Frontier Airlines · F9 3132 Depart at 4:48pm from Ontario (ONT) Fly for 3h 4m Arrive at 9:52pm in Houston (IAH)

Layover in Houston for 8h 22m

Sun Mar 9th 2025 Frontier Airlines · F9 1404 Depart at 7:14am from Houston (IAH) Fly for 2h 5m Arrive at 10:19am in Atlanta (ATL)

Book Flight
US$668

5:32pm - 11:50pm
Sun Mar 2nd 2025

9h 18m
Atlanta (ATL) → Ontario (ONT)

1 Stop

6:57am - 8:02pm
Sat Mar 8th 2025

10h 5m
Ontario (ONT) → Atlanta (ATL)

1 Stop

Sun Mar 2nd 2025 Alaska Airlines · AS 497 Depart at 5:32pm from Atlanta (ATL) Fly for 5h 41m Arrive at 8:13pm in Seattle (SEA)

Layover in Seattle for 1h 2m

Sun Mar 2nd 2025 Alaska Airlines · AS 1003 Depart at 9:15pm from Seattle (SEA) Fly for 2h 35m Arrive at 11:50pm in Ontario (ONT)

Stay in Ontario for 5 nights — find accommodations with Booking

Sat Mar 8th 2025 Frontier Airlines · F9 1406 Depart at 6:57am from Ontario (ONT) Fly for 3h 14m Arrive at 12:11pm in Dallas (DFW)

Layover in Dallas for 4h 36m

Sat Mar 8th 2025 Frontier Airlines · F9 3022 Depart at 4:47pm from Dallas (DFW) Fly for 2h 15m Arrive at 8:02pm in Atlanta (ATL)

Book Flight
US$668

8:00am - 3:26pm
Sun Mar 2nd 2025

10h 26m
Atlanta (ATL) → Ontario (ONT)

1 Stop

6:57am - 8:02pm
Sat Mar 8th 2025

10h 5m
Ontario (ONT) → Atlanta (ATL)

1 Stop

Sun Mar 2nd 2025 Alaska Airlines · AS 377 Depart at 8:00am from Atlanta (ATL) Fly for 5h 35m Arrive at 10:35am in Seattle (SEA)

Layover in Seattle for 2h 24m

Sun Mar 2nd 2025 Alaska Airlines · AS 1097 Depart at 12:59pm from Seattle (SEA) Fly for 2h 27m Arrive at 3:26pm in Ontario (ONT)

Stay in Ontario for 5 nights — find accommodations with Booking

Sat Mar 8th 2025 Frontier Airlines · F9 1406 Depart at 6:57am from Ontario (ONT) Fly for 3h 14m Arrive at 12:11pm in Dallas (DFW)

Layover in Dallas for 4h 36m

Sat Mar 8th 2025 Frontier Airlines · F9 3022 Depart at 4:47pm from Dallas (DFW) Fly for 2h 15m Arrive at 8:02pm in Atlanta (ATL)

Book Flight
US$668

5:32pm - 11:50pm
Sun Mar 2nd 2025

9h 18m
Atlanta (ATL) → Ontario (ONT)

1 Stop

4:48pm - 10:19am
Sat Mar 8th 2025

13h 31m
Ontario (ONT) → Atlanta (ATL)

1 Stop

Sun Mar 2nd 2025 Alaska Airlines · AS 497 Depart at 5:32pm from Atlanta (ATL) Fly for 5h 41m Arrive at 8:13pm in Seattle (SEA)

Layover in Seattle for 1h 2m

Sun Mar 2nd 2025 Alaska Airlines · AS 1003 Depart at 9:15pm from Seattle (SEA) Fly for 2h 35m Arrive at 11:50pm in Ontario (ONT)

Stay in Ontario for 5 nights — find accommodations with Booking

Sat Mar 8th 2025 Frontier Airlines · F9 3132 Depart at 4:48pm from Ontario (ONT) Fly for 3h 4m Arrive at 9:52pm in Houston (IAH)

Layover in Houston for 8h 22m

Sun Mar 9th 2025 Frontier Airlines · F9 1404 Depart at 7:14am from Houston (IAH) Fly for 2h 5m Arrive at 10:19am in Atlanta (ATL)

Book Flight
US$668

8:00am - 3:26pm
Sun Mar 2nd 2025

10h 26m
Atlanta (ATL) → Ontario (ONT)

1 Stop

4:48pm - 10:19am
Sat Mar 8th 2025

13h 31m
Ontario (ONT) → Atlanta (ATL)

1 Stop

Sun Mar 2nd 2025 Alaska Airlines · AS 377 Depart at 8:00am from Atlanta (ATL) Fly for 5h 35m Arrive at 10:35am in Seattle (SEA)

Layover in Seattle for 2h 24m

Sun Mar 2nd 2025 Alaska Airlines · AS 1097 Depart at 12:59pm from Seattle (SEA) Fly for 2h 27m Arrive at 3:26pm in Ontario (ONT)

Stay in Ontario for 6 nights — find accommodations with Booking

Sat Mar 8th 2025 Frontier Airlines · F9 3132 Depart at 4:48pm from Ontario (ONT) Fly for 3h 4m Arrive at 9:52pm in Houston (IAH)

Layover in Houston for 8h 22m

Sun Mar 9th 2025 Frontier Airlines · F9 1404 Depart at 7:14am from Houston (IAH) Fly for 2h 5m Arrive at 10:19am in Atlanta (ATL)

Book Flight
US$709

8:00am - 11:50pm
Sun Mar 2nd 2025

18h 50m
Atlanta (ATL) → Ontario (ONT)

1 Stop

8:35pm - 7:48am
Sat Mar 8th 2025

7h 13m
Ontario (ONT) → Atlanta (ATL)

1 Stop

Sun Mar 2nd 2025 Alaska Airlines · AS 377 Depart at 8:00am from Atlanta (ATL) Fly for 5h 35m Arrive at 10:35am in Seattle (SEA)

Layover in Seattle for 10h 40m

Sun Mar 2nd 2025 Alaska Airlines · AS 1003 Depart at 9:15pm from Seattle (SEA) Fly for 2h 35m Arrive at 11:50pm in Ontario (ONT)

Stay in Ontario for 5 nights — find accommodations with Booking

Sat Mar 8th 2025 Frontier Airlines · F9 4206 Depart at 8:35pm from Ontario (ONT) Fly for 1h 19m Arrive at 9:54pm in Las Vegas (LAS)

Layover in Las Vegas for 1h 46m

Sat Mar 8th 2025 Frontier Airlines · F9 1116 Depart at 11:40pm from Las Vegas (LAS) Fly for 4h 8m Arrive at 7:48am in Atlanta (ATL)

Book Flight
US$709

8:00am - 11:50pm
Sun Mar 2nd 2025

18h 50m
Atlanta (ATL) → Ontario (ONT)

1 Stop

7:30am - 6:47pm
Sat Mar 8th 2025

8h 17m
Ontario (ONT) → Atlanta (ATL)

1 Stop

Sun Mar 2nd 2025 Alaska Airlines · AS 377 Depart at 8:00am from Atlanta (ATL) Fly for 5h 35m Arrive at 10:35am in Seattle (SEA)

Layover in Seattle for 10h 40m

Sun Mar 2nd 2025 Alaska Airlines · AS 1003 Depart at 9:15pm from Seattle (SEA) Fly for 2h 35m Arrive at 11:50pm in Ontario (ONT)

Stay in Ontario for 5 nights — find accommodations with Booking

Sat Mar 8th 2025 Frontier Airlines · F9 1262 Depart at 7:30am from Ontario (ONT) Fly for 2h 31m Arrive at 11:01am in Denver (DEN)

Layover in Denver for 2h 36m

Sat Mar 8th 2025 Frontier Airlines · F9 1450 Depart at 1:37pm from Denver (DEN) Fly for 3h 10m Arrive at 6:47pm in Atlanta (ATL)

Book Flight
US$726

5:32pm - 11:50pm
Sun Mar 2nd 2025

9h 18m
Atlanta (ATL) → Ontario (ONT)

1 Stop

8:35pm - 7:48am
Sat Mar 8th 2025

7h 13m
Ontario (ONT) → Atlanta (ATL)

1 Stop

Sun Mar 2nd 2025 Alaska Airlines · AS 497 Depart at 5:32pm from Atlanta (ATL) Fly for 5h 41m Arrive at 8:13pm in Seattle (SEA)

Layover in Seattle for 1h 2m

Sun Mar 2nd 2025 Alaska Airlines · AS 1003 Depart at 9:15pm from Seattle (SEA) Fly for 2h 35m Arrive at 11:50pm in Ontario (ONT)

Stay in Ontario for 5 nights — find accommodations with Booking

Sat Mar 8th 2025 Frontier Airlines · F9 4206 Depart at 8:35pm from Ontario (ONT) Fly for 1h 19m Arrive at 9:54pm in Las Vegas (LAS)

Layover in Las Vegas for 1h 46m

Sat Mar 8th 2025 Frontier Airlines · F9 1116 Depart at 11:40pm from Las Vegas (LAS) Fly for 4h 8m Arrive at 7:48am in Atlanta (ATL)

Book Flight
US$726

5:32pm - 11:50pm
Sun Mar 2nd 2025

9h 18m
Atlanta (ATL) → Ontario (ONT)

1 Stop

7:30am - 6:47pm
Sat Mar 8th 2025

8h 17m
Ontario (ONT) → Atlanta (ATL)

1 Stop

Sun Mar 2nd 2025 Alaska Airlines · AS 497 Depart at 5:32pm from Atlanta (ATL) Fly for 5h 41m Arrive at 8:13pm in Seattle (SEA)

Layover in Seattle for 1h 2m

Sun Mar 2nd 2025 Alaska Airlines · AS 1003 Depart at 9:15pm from Seattle (SEA) Fly for 2h 35m Arrive at 11:50pm in Ontario (ONT)

Stay in Ontario for 5 nights — find accommodations with Booking

Sat Mar 8th 2025 Frontier Airlines · F9 1262 Depart at 7:30am from Ontario (ONT) Fly for 2h 31m Arrive at 11:01am in Denver (DEN)

Layover in Denver for 2h 36m

Sat Mar 8th 2025 Frontier Airlines · F9 1450 Depart at 1:37pm from Denver (DEN) Fly for 3h 10m Arrive at 6:47pm in Atlanta (ATL)

Book Flight
US$726

8:00am - 3:26pm
Sun Mar 2nd 2025

10h 26m
Atlanta (ATL) → Ontario (ONT)

1 Stop

8:35pm - 7:48am
Sat Mar 8th 2025

7h 13m
Ontario (ONT) → Atlanta (ATL)

1 Stop

Sun Mar 2nd 2025 Alaska Airlines · AS 377 Depart at 8:00am from Atlanta (ATL) Fly for 5h 35m Arrive at 10:35am in Seattle (SEA)

Layover in Seattle for 2h 24m

Sun Mar 2nd 2025 Alaska Airlines · AS 1097 Depart at 12:59pm from Seattle (SEA) Fly for 2h 27m Arrive at 3:26pm in Ontario (ONT)

Stay in Ontario for 6 nights — find accommodations with Booking

Sat Mar 8th 2025 Frontier Airlines · F9 4206 Depart at 8:35pm from Ontario (ONT) Fly for 1h 19m Arrive at 9:54pm in Las Vegas (LAS)

Layover in Las Vegas for 1h 46m

Sat Mar 8th 2025 Frontier Airlines · F9 1116 Depart at 11:40pm from Las Vegas (LAS) Fly for 4h 8m Arrive at 7:48am in Atlanta (ATL)

Book Flight
US$726

8:00am - 3:26pm
Sun Mar 2nd 2025

10h 26m
Atlanta (ATL) → Ontario (ONT)

1 Stop

7:30am - 6:47pm
Sat Mar 8th 2025

8h 17m
Ontario (ONT) → Atlanta (ATL)

1 Stop

Sun Mar 2nd 2025 Alaska Airlines · AS 377 Depart at 8:00am from Atlanta (ATL) Fly for 5h 35m Arrive at 10:35am in Seattle (SEA)

Layover in Seattle for 2h 24m

Sun Mar 2nd 2025 Alaska Airlines · AS 1097 Depart at 12:59pm from Seattle (SEA) Fly for 2h 27m Arrive at 3:26pm in Ontario (ONT)

Stay in Ontario for 5 nights — find accommodations with Booking

Sat Mar 8th 2025 Frontier Airlines · F9 1262 Depart at 7:30am from Ontario (ONT) Fly for 2h 31m Arrive at 11:01am in Denver (DEN)

Layover in Denver for 2h 36m

Sat Mar 8th 2025 Frontier Airlines · F9 1450 Depart at 1:37pm from Denver (DEN) Fly for 3h 10m Arrive at 6:47pm in Atlanta (ATL)

Book Flight
US$782

9:48pm - 7:26am
Sun Mar 2nd 2025

12h 38m
Atlanta (ATL) → Ontario (ONT)

1 Stop

6:57am - 8:02pm
Sat Mar 8th 2025

10h 5m
Ontario (ONT) → Atlanta (ATL)

1 Stop

Sun Mar 2nd 2025 Frontier Airlines · F9 2427 Depart at 9:48pm from Atlanta (ATL) Fly for 4h 46m Arrive at 11:34pm in Las Vegas (LAS)

Layover in Las Vegas for 6h 46m

Mon Mar 3rd 2025 Frontier Airlines · F9 4757 Depart at 6:20am from Las Vegas (LAS) Fly for 1h 6m Arrive at 7:26am in Ontario (ONT)

Stay in Ontario for 4 nights — find accommodations with Booking

Sat Mar 8th 2025 Frontier Airlines · F9 1406 Depart at 6:57am from Ontario (ONT) Fly for 3h 14m Arrive at 12:11pm in Dallas (DFW)

Layover in Dallas for 4h 36m

Sat Mar 8th 2025 Frontier Airlines · F9 3022 Depart at 4:47pm from Dallas (DFW) Fly for 2h 15m Arrive at 8:02pm in Atlanta (ATL)

Book Flight
US$782

9:48pm - 7:26am
Sun Mar 2nd 2025

12h 38m
Atlanta (ATL) → Ontario (ONT)

1 Stop

4:48pm - 10:19am
Sat Mar 8th 2025

13h 31m
Ontario (ONT) → Atlanta (ATL)

1 Stop

Sun Mar 2nd 2025 Frontier Airlines · F9 2427 Depart at 9:48pm from Atlanta (ATL) Fly for 4h 46m Arrive at 11:34pm in Las Vegas (LAS)

Layover in Las Vegas for 6h 46m

Mon Mar 3rd 2025 Frontier Airlines · F9 4757 Depart at 6:20am from Las Vegas (LAS) Fly for 1h 6m Arrive at 7:26am in Ontario (ONT)

Stay in Ontario for 5 nights — find accommodations with Booking

Sat Mar 8th 2025 Frontier Airlines · F9 3132 Depart at 4:48pm from Ontario (ONT) Fly for 3h 4m Arrive at 9:52pm in Houston (IAH)

Layover in Houston for 8h 22m

Sun Mar 9th 2025 Frontier Airlines · F9 1404 Depart at 7:14am from Houston (IAH) Fly for 2h 5m Arrive at 10:19am in Atlanta (ATL)

Book Flight
US$840

9:48pm - 7:26am
Sun Mar 2nd 2025

12h 38m
Atlanta (ATL) → Ontario (ONT)

1 Stop

8:35pm - 7:48am
Sat Mar 8th 2025

7h 13m
Ontario (ONT) → Atlanta (ATL)

1 Stop

Sun Mar 2nd 2025 Frontier Airlines · F9 2427 Depart at 9:48pm from Atlanta (ATL) Fly for 4h 46m Arrive at 11:34pm in Las Vegas (LAS)

Layover in Las Vegas for 6h 46m

Mon Mar 3rd 2025 Frontier Airlines · F9 4757 Depart at 6:20am from Las Vegas (LAS) Fly for 1h 6m Arrive at 7:26am in Ontario (ONT)

Stay in Ontario for 5 nights — find accommodations with Booking

Sat Mar 8th 2025 Frontier Airlines · F9 4206 Depart at 8:35pm from Ontario (ONT) Fly for 1h 19m Arrive at 9:54pm in Las Vegas (LAS)

Layover in Las Vegas for 1h 46m

Sat Mar 8th 2025 Frontier Airlines · F9 1116 Depart at 11:40pm from Las Vegas (LAS) Fly for 4h 8m Arrive at 7:48am in Atlanta (ATL)

Book Flight
US$840

9:48pm - 7:26am
Sun Mar 2nd 2025

12h 38m
Atlanta (ATL) → Ontario (ONT)

1 Stop

7:30am - 6:47pm
Sat Mar 8th 2025

8h 17m
Ontario (ONT) → Atlanta (ATL)

1 Stop

Sun Mar 2nd 2025 Frontier Airlines · F9 2427 Depart at 9:48pm from Atlanta (ATL) Fly for 4h 46m Arrive at 11:34pm in Las Vegas (LAS)

Layover in Las Vegas for 6h 46m

Mon Mar 3rd 2025 Frontier Airlines · F9 4757 Depart at 6:20am from Las Vegas (LAS) Fly for 1h 6m Arrive at 7:26am in Ontario (ONT)

Stay in Ontario for 5 nights — find accommodations with Booking

Sat Mar 8th 2025 Frontier Airlines · F9 1262 Depart at 7:30am from Ontario (ONT) Fly for 2h 31m Arrive at 11:01am in Denver (DEN)

Layover in Denver for 2h 36m

Sat Mar 8th 2025 Frontier Airlines · F9 1450 Depart at 1:37pm from Denver (DEN) Fly for 3h 10m Arrive at 6:47pm in Atlanta (ATL)

Book Flight

Sarah Belizaire

@sarahbb1

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@eyupitsjohn

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Roaming Sonaa

@roamingsonaa

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ANDY TRAVELS

@andy_travels

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Travel With Bender

@travelwitbender

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

Wesley Mergard

@travel.with.wes

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Return Flights from Atlanta to Ontario (ATL to ONT)

Sarah Belizaire

John Ford

Roaming Sonaa

ANDY TRAVELS

Travel With Bender

Wesley Mergard

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