Flights Seattle to Denver SEA to DEN

Flights from Seattle (SEA) to Denver (DEN): 9 airlines operate 126 flight numbers on this route, about 58 flights a week, distance 1645 km / 1022 miles. The next departure is UA757 (United Airlines) on Sat, Nov 14 at 05:05 PST (13:05 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.

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

Seattle to Denver Flights

The 30 most recent of 126 flight numbers from SEA to DEN, with the date each last flew. Local times: SEA PST, DEN MST.

Flight Airline Last seen Departure Arrival
DL1358 Delta Air Lines Nov 14, 2026 08:30 12:17
UA1505 United Airlines Nov 14, 2026 08:30 12:14
WN4956 Southwest Airlines Nov 14, 2026 06:45 10:15
UA757 United Airlines Nov 14, 2026 05:05 08:42
DL2851 Delta Air Lines Nov 13, 2026 19:59 23:47
8C3376 Air Transport International Nov 13, 2026 19:30 22:59
UA1218 United Airlines Nov 13, 2026 19:04 22:45
AS310 Alaska Airlines Nov 13, 2026 18:59 22:38
F93406 Frontier Airlines Nov 13, 2026 16:27 20:15
UA725 United Airlines Nov 13, 2026 15:49 19:30
AS421 Alaska Airlines Nov 13, 2026 13:59 17:39
WN3823 Southwest Airlines Nov 13, 2026 13:55 17:30
DL2759 Delta Air Lines Nov 13, 2026 13:52 17:37
UA1534 United Airlines Nov 13, 2026 12:45 16:26
AS535 Alaska Airlines Nov 13, 2026 10:06 13:58
WN2150 Southwest Airlines Nov 13, 2026 09:10 12:45
AS682 Alaska Airlines Nov 13, 2026 07:23 11:14
DL2543 Delta Air Lines Nov 8, 2026 13:55 17:47
WN746 Southwest Airlines Nov 7, 2026 13:05 16:35
8C3397 Air Transport International Nov 3, 2026 15:50 19:28
UA3875 United Airlines Nov 2, 2026 15:00 18:41
AS602 Alaska Airlines Oct 31, 2026 13:16 16:59
WN2146 Southwest Airlines Oct 31, 2026 09:35 13:15
WN2515 Southwest Airlines Oct 31, 2026 06:15 09:55
WN1841 Southwest Airlines Oct 30, 2026 16:15 20:00
WN3755 Southwest Airlines Oct 30, 2026 14:10 17:55
WN3754 Southwest Airlines Oct 30, 2026 11:05 14:45
WN3753 Southwest Airlines Oct 30, 2026 05:50 09:30
UA3903 United Airlines Oct 29, 2026 09:00 12:42
WN1448 Southwest Airlines Oct 28, 2026 15:30 19:15

Upcoming flights

Local times at the departure airport.
Flight From To Scheduled Time Departure Status Details
UA757 Seattle SEA Denver DEN 05:05 05:05 Cancelled Track >
WN4956 Seattle SEA Denver DEN 06:45 06:45 Cancelled Track >
DL1358 Seattle SEA Denver DEN 08:30 08:53 Delayed Track >
UA1505 Seattle SEA Denver DEN 08:30 Scheduled Track >

Recent flights

Local times at the departure airport.
Flight From To Scheduled Time Departure Status Details
DL2851 Seattle SEA Denver DEN 19:59 19:59 Cancelled Track >
8C3376 Seattle SEA Denver DEN 19:30 20:25 Landed Late Track >
UA1218 Seattle SEA Denver DEN 19:04 23:55 Unknown Track >
AS310 Seattle SEA Denver DEN 18:59 18:59 Cancelled Track >
F93406 Seattle SEA Denver DEN 16:27 20:00 En-Route Track >
UA725 Seattle SEA Denver DEN 15:49 20:17 En-Route Track >
AS421 Seattle SEA Denver DEN 13:59 18:48 En-Route Track >
WN3823 Seattle SEA Denver DEN 13:55 17:50 Unknown Track >
DL2759 Seattle SEA Denver DEN 13:52 16:10 En-Route Track >
UA1534 Seattle SEA Denver DEN 12:45 13:43 En-Route Track >
AS535 Seattle SEA Denver DEN 10:06 10:38 Landed Track >
WN2150 Seattle SEA Denver DEN 09:10 09:27 Landed Track >
UA1505 Seattle SEA Denver DEN 08:30 09:05 Landed Track >
DL1358 Seattle SEA Denver DEN 08:30 08:58 Landed Track >
AS682 Seattle SEA Denver DEN 07:23 07:33 Landed Track >

Airlines flying SEA to DEN

SEA to DEN FAQ

How long is the flight from Seattle to Denver?
About 2 h 25 min: that is the median flight time of the last 6 flights that landed; the timetable allows 2 h 40 min.
Which airlines fly from Seattle to Denver?
Southwest Airlines, United Airlines, Alaska Airlines, Delta Air Lines, Air Transport International, Frontier Airlines, Volaris, Atlas Air and American Airlines have flights from Seattle (SEA) to Denver (DEN) 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 Seattle to Denver?
About 58 flights a week, counted over the two weeks before and after today. Only operating flights are counted, not code-share numbers.
Are flights from Seattle to Denver on time?
5 of the last 6 flights that landed arrived less than 15 minutes after their scheduled time.
How far is Seattle from Denver?
1645 km (1022 miles) in a straight line between Seattle Tacoma International Airport and Denver International Airport.

Denver (DEN) to Seattle (SEA) flights >