Flights Denver to Seattle DEN to SEA

Flights from Denver (DEN) to Seattle (SEA): 10 airlines operate 140 flight numbers on this route, about 57 flights a week, distance 1645 km / 1022 miles. The next departure is AS493 (Alaska Airlines) on Tue, Nov 3 at 15:25 MST (22:25 GMT).

Airlines and flight numbers count operating flights from a year ago to a year ahead; code-share numbers are not counted. On time means landed less than 15 minutes late.

DEN Denver Denver International Airport SEA Seattle Seattle Tacoma International Airport
Route map DEN to SEA Great-circle route from Denver International Airport, United States to Seattle Tacoma International Airport, United States, 1645 km. Map data: Natural Earth. UNITED STATES DEN SEA Map data: Natural Earth

Denver to Seattle Flights

The 30 most recent of 140 flight numbers from DEN to SEA, with the date each last flew. Local times: DEN MST, SEA PST.

Flight Airline Last seen Departure Arrival
WN3141 Southwest Airlines Nov 3, 2026 20:40 22:45
UA2767 United Airlines Nov 3, 2026 19:10 21:19
DL2543 Delta Air Lines Nov 3, 2026 18:42 20:48
UA2013 United Airlines Nov 3, 2026 15:53 17:57
WN244 Southwest Airlines Nov 3, 2026 15:40 17:50
AS493 Alaska Airlines Nov 3, 2026 15:25 17:27
DL1358 Delta Air Lines Nov 3, 2026 13:55 16:08
AS682 Alaska Airlines Nov 3, 2026 12:12 14:15
UA2302 United Airlines Nov 3, 2026 11:50 13:54
WN1543 Southwest Airlines Nov 3, 2026 08:50 11:00
UA2271 United Airlines Nov 3, 2026 07:40 09:47
AS317 Alaska Airlines Nov 3, 2026 07:03 09:07
DL1731 Delta Air Lines Nov 3, 2026 06:00 08:10
8C3395 Air Transport International Nov 2, 2026 21:45 23:30
AS421 Alaska Airlines Nov 2, 2026 18:37 20:41
F91175 Frontier Airlines Nov 2, 2026 13:04 15:12
WN1788 Southwest Airlines Nov 2, 2026 08:30 10:40
UA2651 United Airlines Nov 1, 2026 21:07 23:15
WN3061 Southwest Airlines Oct 31, 2026 16:30 18:30
AS567 Alaska Airlines Oct 31, 2026 15:30 17:29
WN1144 Southwest Airlines Oct 31, 2026 08:00 10:00
WN1769 Southwest Airlines Oct 30, 2026 18:30 20:35
AS615 Alaska Airlines Oct 30, 2026 17:57 19:58
WN447 Southwest Airlines Oct 30, 2026 11:30 13:30
WN4392 Southwest Airlines Oct 30, 2026 08:30 10:30
WN4358 Southwest Airlines Oct 28, 2026 20:40 22:40
WN183 Southwest Airlines Oct 28, 2026 17:05 19:05
WN4538 Southwest Airlines Oct 28, 2026 12:20 14:20
2D2543 Dynamic Airways Oct 26, 2026 18:42 20:48
WN3245 Southwest Airlines Oct 25, 2026 17:40 19:40

Upcoming flights

Local times at the departure airport.

Recent flights

Local times at the departure airport.

Airlines flying DEN to SEA

DEN to SEA FAQ

How long is the flight from Denver to Seattle?
About 2 h 25 min: that is the median flight time of the last 12 flights that landed; the timetable allows 3 h 5 min.
Which airlines fly from Denver to Seattle?
Southwest Airlines, United Airlines, Alaska Airlines, Delta Air Lines, Air Transport International, Frontier Airlines, Volaris, Dynamic Airways, American Airlines and Atlas Air have flights from Denver (DEN) to Seattle (SEA) between a year ago and a year ahead. An airline listed may not fly the route every day.
How many flights a week go from Denver to Seattle?
About 57 flights a week, counted over the two weeks before and after today. Only operating flights are counted, not code-share numbers.
Are flights from Denver to Seattle on time?
11 of the last 12 flights that landed arrived less than 15 minutes after their scheduled time.
How far is Denver from Seattle?
1645 km (1022 miles) in a straight line between Denver International Airport and Seattle Tacoma International Airport.

Seattle (SEA) to Denver (DEN) flights >