Cheap Flights from Denver to Seattle (DEN to SEA)

Sun May 11th 2025 Frontier Airlines · F9 1175 Depart at 9:25am from Denver (DEN) Fly for 3h 6m Arrive at 11:31am in Seattle (SEA)

Sun May 11th 2025 Frontier Airlines · F9 1261 Depart at 9:50am from Denver (DEN) Fly for 2h 25m Arrive at 11:15am in Ontario (ONT)

Sun May 11th 2025 Frontier Airlines · F9 3164 Depart at 4:29pm from Ontario (ONT) Fly for 3h 3m Arrive at 7:32pm in Seattle (SEA)

Sun May 11th 2025 Frontier Airlines · F9 1499 Depart at 10:37pm from Denver (DEN) Fly for 2h 22m Arrive at 11:59pm in Ontario (ONT)

Mon May 12th 2025 Frontier Airlines · F9 3164 Depart at 4:29pm from Ontario (ONT) Fly for 3h 3m Arrive at 7:32pm in Seattle (SEA)

Sun May 11th 2025 Frontier Airlines · F9 3405 Depart at 10:36pm from Denver (DEN) Fly for 3h 8m Arrive at 12:44am in Seattle (SEA)

Sun May 11th 2025 United Airlines · UA 2651 Depart at 9:05pm from Denver (DEN) Fly for 2h 58m Arrive at 11:03pm in Seattle (SEA)

Sun May 11th 2025 Hawaiian Airlines · HA 4826 Depart at 8:20am from Denver (DEN) Fly for 2h 42m Arrive at 10:02am in Portland (PDX)

Sun May 11th 2025 Hawaiian Airlines · HA 6393 Depart at 11:35am from Portland (PDX) Fly for 0h 54m Arrive at 12:29pm in Seattle (SEA)

Sun May 11th 2025 Hawaiian Airlines · HA 4826 Depart at 8:20am from Denver (DEN) Fly for 2h 42m Arrive at 10:02am in Portland (PDX)

Sun May 11th 2025 Hawaiian Airlines · HA 6390 Depart at 1:15pm from Portland (PDX) Fly for 0h 54m Arrive at 2:09pm in Seattle (SEA)

Sun May 11th 2025 United Airlines · UA 2391 Depart at 7:45am from Denver (DEN) Fly for 2h 51m Arrive at 9:36am in San Francisco (SFO)

Sun May 11th 2025 United Airlines · UA 1777 Depart at 1:35pm from San Francisco (SFO) Fly for 2h 23m Arrive at 3:58pm in Seattle (SEA)

Sun May 11th 2025 Alaska Airlines · AS 668 Depart at 8:20am from Denver (DEN) Fly for 2h 42m Arrive at 10:02am in Portland (PDX)

Sun May 11th 2025 Alaska Airlines · AS 2065 Depart at 11:35am from Portland (PDX) Fly for 0h 54m Arrive at 12:29pm in Seattle (SEA)

Sun May 11th 2025 Alaska Airlines · AS 668 Depart at 8:20am from Denver (DEN) Fly for 2h 42m Arrive at 10:02am in Portland (PDX)

Sun May 11th 2025 Alaska Airlines · AS 2035 Depart at 1:15pm from Portland (PDX) Fly for 0h 54m Arrive at 2:09pm in Seattle (SEA)

Sun May 11th 2025 Hawaiian Airlines · HA 4868 Depart at 7:00am from Denver (DEN) Fly for 3h 0m Arrive at 9:00am in Seattle (SEA)

Sun May 11th 2025 United Airlines · UA 2681 Depart at 7:16pm from Denver (DEN) Fly for 2h 49m Arrive at 9:05pm in San Francisco (SFO)

Sun May 11th 2025 United Airlines · UA 648 Depart at 10:36pm from San Francisco (SFO) Fly for 2h 23m Arrive at 12:59am in Seattle (SEA)

Sun May 11th 2025 Alaska Airlines · AS 643 Depart at 7:00am from Denver (DEN) Fly for 3h 0m Arrive at 9:00am in Seattle (SEA)

Sun May 11th 2025 United Airlines · UA 2367 Depart at 5:20am from Denver (DEN) Fly for 2h 50m Arrive at 7:10am in San Francisco (SFO)

Sun May 11th 2025 United Airlines · UA 2741 Depart at 9:30am from San Francisco (SFO) Fly for 2h 19m Arrive at 11:49am in Seattle (SEA)

Sun May 11th 2025 Alaska Airlines · AS 668 Depart at 8:20am from Denver (DEN) Fly for 2h 42m Arrive at 10:02am in Portland (PDX)

Sun May 11th 2025 Alaska Airlines · AS 3370 Depart at 2:30pm from Portland (PDX) Fly for 1h 0m Arrive at 3:30pm in Seattle (SEA)

Sun May 11th 2025 Alaska Airlines · AS 668 Depart at 8:20am from Denver (DEN) Fly for 2h 42m Arrive at 10:02am in Portland (PDX)

Sun May 11th 2025 Alaska Airlines · AS 2405 Depart at 4:00pm from Portland (PDX) Fly for 0h 54m Arrive at 4:54pm in Seattle (SEA)

Sun May 11th 2025 Alaska Airlines · AS 668 Depart at 8:20am from Denver (DEN) Fly for 2h 42m Arrive at 10:02am in Portland (PDX)

Sun May 11th 2025 Alaska Airlines · AS 2551 Depart at 5:22pm from Portland (PDX) Fly for 0h 55m Arrive at 6:17pm in Seattle (SEA)

Sun May 11th 2025 Alaska Airlines · AS 668 Depart at 8:20am from Denver (DEN) Fly for 2h 42m Arrive at 10:02am in Portland (PDX)

Sun May 11th 2025 Alaska Airlines · AS 2053 Depart at 7:42pm from Portland (PDX) Fly for 0h 53m Arrive at 8:35pm in Seattle (SEA)

Sun May 11th 2025 Alaska Airlines · AS 668 Depart at 8:20am from Denver (DEN) Fly for 2h 42m Arrive at 10:02am in Portland (PDX)

Sun May 11th 2025 Alaska Airlines · AS 2320 Depart at 8:45pm from Portland (PDX) Fly for 0h 54m Arrive at 9:39pm in Seattle (SEA)

Sun May 11th 2025 Hawaiian Airlines · HA 4826 Depart at 8:20am from Denver (DEN) Fly for 2h 42m Arrive at 10:02am in Portland (PDX)

Sun May 11th 2025 Hawaiian Airlines · HA 6402 Depart at 5:22pm from Portland (PDX) Fly for 0h 55m Arrive at 6:17pm in Seattle (SEA)

Sun May 11th 2025 Hawaiian Airlines · HA 4826 Depart at 8:20am from Denver (DEN) Fly for 2h 42m Arrive at 10:02am in Portland (PDX)

Sun May 11th 2025 Hawaiian Airlines · HA 6403 Depart at 2:30pm from Portland (PDX) Fly for 1h 0m Arrive at 3:30pm in Seattle (SEA)

Sun May 11th 2025 United Airlines · UA 299 Depart at 7:00pm from Denver (DEN) Fly for 3h 2m Arrive at 9:02pm in Seattle (SEA)

Sun May 11th 2025 Hawaiian Airlines · HA 4826 Depart at 8:20am from Denver (DEN) Fly for 2h 42m Arrive at 10:02am in Portland (PDX)

Sun May 11th 2025 Hawaiian Airlines · HA 7194 Depart at 11:07am from Portland (PDX) Fly for 1h 25m Arrive at 1:32pm in Kalispell (FCA)

Sun May 11th 2025 Hawaiian Airlines · HA 4855 Depart at 2:15pm from Kalispell (FCA) Fly for 1h 28m Arrive at 2:43pm in Seattle (SEA)

Sun May 11th 2025 Hawaiian Airlines · HA 4863 Depart at 6:37pm from Denver (DEN) Fly for 2h 48m Arrive at 8:25pm in Portland (PDX)

Sun May 11th 2025 Hawaiian Airlines · HA 4930 Depart at 10:00pm from Portland (PDX) Fly for 0h 54m Arrive at 10:54pm in Seattle (SEA)

Sun May 11th 2025 Hawaiian Airlines · HA 4820 Depart at 7:55pm from Denver (DEN) Fly for 3h 0m Arrive at 9:55pm in Seattle (SEA)

Sun May 11th 2025 Alaska Airlines · AS 668 Depart at 8:20am from Denver (DEN) Fly for 2h 42m Arrive at 10:02am in Portland (PDX)

Sun May 11th 2025 Alaska Airlines · AS 2268 Depart at 11:16am from Portland (PDX) Fly for 0h 54m Arrive at 12:10pm in Medford (MFR)

Sun May 11th 2025 Alaska Airlines · AS 2396 Depart at 1:30pm from Medford (MFR) Fly for 1h 19m Arrive at 2:49pm in Seattle (SEA)

Sun May 11th 2025 Alaska Airlines · AS 615 Depart at 7:55pm from Denver (DEN) Fly for 3h 0m Arrive at 9:55pm in Seattle (SEA)

Sun May 11th 2025 Alaska Airlines · AS 631 Depart at 6:37pm from Denver (DEN) Fly for 2h 48m Arrive at 8:25pm in Portland (PDX)

Sun May 11th 2025 Alaska Airlines · AS 3168 Depart at 10:00pm from Portland (PDX) Fly for 0h 54m Arrive at 10:54pm in Seattle (SEA)

Sun May 11th 2025 United Airlines · UA 486 Depart at 8:00pm from Denver (DEN) Fly for 2h 51m Arrive at 9:51pm in San Francisco (SFO)

Sun May 11th 2025 United Airlines · UA 648 Depart at 10:36pm from San Francisco (SFO) Fly for 2h 23m Arrive at 12:59am in Seattle (SEA)

Sun May 11th 2025 Frontier Airlines · F9 4753 Depart at 10:53pm from Denver (DEN) Fly for 2h 2m Arrive at 11:55pm in Phoenix (PHX)

Mon May 12th 2025 Frontier Airlines · F9 3973 Depart at 6:00am from Phoenix (PHX) Fly for 3h 16m Arrive at 9:16am in Seattle (SEA)

Sun May 11th 2025 Hawaiian Airlines · HA 4826 Depart at 8:20am from Denver (DEN) Fly for 2h 42m Arrive at 10:02am in Portland (PDX)

Sun May 11th 2025 Alaska Airlines · AS 2035 Depart at 1:15pm from Portland (PDX) Fly for 0h 54m Arrive at 2:09pm in Seattle (SEA)

Sun May 11th 2025 Alaska Airlines · AS 668 Depart at 8:20am from Denver (DEN) Fly for 2h 42m Arrive at 10:02am in Portland (PDX)

Sun May 11th 2025 Hawaiian Airlines · HA 6390 Depart at 1:15pm from Portland (PDX) Fly for 0h 54m Arrive at 2:09pm in Seattle (SEA)

Sun May 11th 2025 Alaska Airlines · AS 668 Depart at 8:20am from Denver (DEN) Fly for 2h 42m Arrive at 10:02am in Portland (PDX)

Sun May 11th 2025 Hawaiian Airlines · HA 6393 Depart at 11:35am from Portland (PDX) Fly for 0h 54m Arrive at 12:29pm in Seattle (SEA)

Sun May 11th 2025 Hawaiian Airlines · HA 4826 Depart at 8:20am from Denver (DEN) Fly for 2h 42m Arrive at 10:02am in Portland (PDX)

Sun May 11th 2025 Alaska Airlines · AS 2065 Depart at 11:35am from Portland (PDX) Fly for 0h 54m Arrive at 12:29pm in Seattle (SEA)

Sun May 11th 2025 United Airlines · UA 745 Depart at 4:05pm from Denver (DEN) Fly for 3h 1m Arrive at 6:06pm in Seattle (SEA)

Sun May 11th 2025 United Airlines · UA 751 Depart at 7:46am from Denver (DEN) Fly for 3h 1m Arrive at 9:47am in Seattle (SEA)

Sun May 11th 2025 United Airlines · UA 1614 Depart at 9:51am from Denver (DEN) Fly for 2h 52m Arrive at 11:43am in San Francisco (SFO)

Sun May 11th 2025 United Airlines · UA 1777 Depart at 1:35pm from San Francisco (SFO) Fly for 2h 23m Arrive at 3:58pm in Seattle (SEA)

Sun May 11th 2025 United Airlines · UA 690 Depart at 11:29am from Denver (DEN) Fly for 3h 1m Arrive at 1:30pm in Seattle (SEA)

Sun May 11th 2025 Hawaiian Airlines · HA 4869 Depart at 2:39pm from Denver (DEN) Fly for 2h 56m Arrive at 4:35pm in Seattle (SEA)

Sun May 11th 2025 Hawaiian Airlines · HA 4829 Depart at 11:55am from Denver (DEN) Fly for 2h 56m Arrive at 1:51pm in Seattle (SEA)

Sun May 11th 2025 Alaska Airlines · AS 682 Depart at 2:39pm from Denver (DEN) Fly for 2h 56m Arrive at 4:35pm in Seattle (SEA)

Sun May 11th 2025 Alaska Airlines · AS 683 Depart at 11:55am from Denver (DEN) Fly for 2h 56m Arrive at 1:51pm in Seattle (SEA)