Direct flights from Denver to Seattle
137 nonstop flights a week on 5 airlines. Zero layovers — one hop from DEN to SEA.
Flight time: about 2h25m nonstop
Which days does it fly?
When does it fly?
Departure times in Denver local time, from flights observed over the last 7 days.
| Flight | Departs | Duration | Days |
|---|---|---|---|
| Delta DAL1731 | 6:03a | 2h17m | Tue–Thu |
| Delta DAL1731 | 6:11a | 2h16m | Mon, Sun |
| Delta DAL1731 | 6:16a | 2h16m | Fri |
| Delta DAL1731 | 7:04a | 2h30m | Sat |
| Southwest SWA4800 | 7:26a | 2h38m | Sun |
| United UAL2271 | 8:03a | 2h16m | Tue |
| United UAL2271 | 8:13a | 2h16m | Wed, Thu, Sun |
| United UAL2271 | 8:18a | 2h19m | Mon, Fri, Sat |
| Alaska ASA317 | 8:22a | 2h36m | Tue–Wed |
| Alaska ASA317 | 8:32a | 2h41m | Mon, Fri, Sat, Sun |
| Alaska ASA317 | 8:36a | 2h30m | Thu |
| Southwest SWA883 | 9:29a | 2h9m | Thu–Fri |
| Southwest SWA4462 | 9:30a | 2h32m | Tue–Wed |
| Southwest SWA883 | 9:38a | 2h40m | Mon |
| Southwest SWA2396 | 9:47a | 2h29m | Sat |
| Southwest SWA4870 | 9:56a | 2h36m | Sun |
| United UAL1877 | 10:10a | 2h17m | Tue–Wed |
| United UAL1877 | 10:18a | 2h20m | Mon, Thu, Fri, Sun |
| Southwest SWA888 | 11:30a | 2h11m | Sat |
| United UAL2058 | 11:34a | 2h16m | Fri, Sun |
| United UAL2058 | 11:38a | 2h18m | Tue–Thu |
| Southwest SWA888 | 11:53a | 2h30m | Wed |
| Southwest SWA888 | 12:11p | 2h17m | Tue |
| Southwest SWA3954 | 12:12p | 2h34m | Sun |
| Alaska ASA682 | 12:20p | 2h19m | Wed |
| United UAL2058 | 12:20p | 2h18m | Mon |
| United UAL2058 | 12:28p | 2h13m | Sat |
| Alaska ASA682 | 12:28p | 2h30m | Tue, Thu, Fri, Sat, Sun |
| Alaska ASA682 | 1:09p | 2h20m | Mon |
| Frontier FFT1175 | 1:13p | 2h21m | Tue, Thu, Sun |
| Frontier FFT1175 | 1:16p | 2h16m | Wed, Fri |
| Southwest SWA1536 | 1:26p | 2h26m | Thu–Fri |
| Frontier FFT1175 | 1:40p | 2h14m | Sat |
| Southwest SWA1536 | 1:45p | 2h39m | Mon |
| Delta DAL1358 | 1:48p | 2h26m | Mon, Tue, Wed, Sun |
| Frontier FFT1175 | 1:49p | 2h18m | Mon |
| Delta DAL1358 | 2:02p | 2h33m | Fri |
| United UAL650 | 2:08p | 2h24m | Mon, Thu |
| United UAL650 | 2:18p | 2h16m | Wed, Sun |
| Delta DAL1358 | 2:20p | 2h30m | Sat |
| United UAL650 | 2:36p | 2h38m | Fri |
| Delta DAL1358 | 2:36p | 2h30m | Thu |
| Alaska ASA535 | 3:14p | 2h32m | Mon, Tue, Fri, Sat |
| Alaska ASA535 | 3:31p | 2h32m | Thu |
| Alaska ASA535 | 3:44p | 2h22m | Sun |
| Alaska ASA535 | 3:56p | 2h38m | Wed |
| Southwest SWA1670 | 3:56p | 2h29m | Fri |
| United UAL2013 | 4:00p | 2h18m | Thu, Sat |
| United UAL2013 | 4:06p | 2h21m | Mon, Fri, Sun |
| Southwest SWA1670 | 4:18p | 2h25m | Thu |
| United UAL2013 | 4:22p | 2h15m | Wed |
| United UAL2013 | 4:25p | 2h20m | Tue |
| Southwest SWA1670 | 4:29p | 2h35m | Mon |
| Southwest SWA4514 | 4:37p | 2h39m | Tue |
| Southwest SWA4514 | 4:45p | 2h30m | Wed |
| Southwest SWA3544 | 5:00p | 2h22m | Sun |
| Southwest SWA4980 | 5:21p | 2h32m | Sat |
| Alaska ASA309 | 5:53p | 2h39m | Wed |
| Alaska ASA309 | 6:15p | 2h19m | Sun |
| Delta DAL2543 | 6:37p | 2h33m | Sat |
| Alaska ASA309 | 6:38p | 2h28m | Mon, Tue, Thu |
| Delta DAL2543 | 6:48p | 2h17m | Tue |
| Delta DAL2543 | 6:59p | 2h36m | Mon, Thu, Sun |
| Alaska ASA615 | 7:13p | 2h50m | Wed, Sat |
| Alaska ASA615 | 7:24p | 2h39m | Tue |
| Southwest SWA555 | 7:32p | 2h21m | Mon |
| Delta DAL2543 | 7:37p | 2h22m | Fri |
| Southwest SWA555 | 7:50p | 2h32m | Fri |
| United UAL360 | 7:51p | 2h16m | Wed, Sun |
| Alaska ASA615 | 8:00p | 2h44m | Mon, Sun |
| United UAL360 | 8:02p | 2h19m | Tue |
| Southwest SWA1670 | 8:10p | 2h19m | Sat |
| United UAL360 | 8:10p | 2h20m | Mon, Sat |
| Delta DAL2543 | 8:10p | 2h22m | Wed |
| Alaska ASA615 | 8:14p | 2h41m | Thu |
| United UAL360 | 8:17p | 2h22m | Thu |
| Alaska ASA309 | 8:37p | 2h20m | Fri |
| Southwest SWA1670 | 8:50p | 2h45m | Sun |
| Alaska ASA615 | 8:59p | 2h47m | Fri |
| United UAL2651 | 9:15p | 2h18m | Sun |
| Southwest SWA4800 | 9:18p | 2h41m | Tue |
| United UAL2651 | 9:34p | 2h21m | Thu |
| United UAL2651 | 9:36p | 2h14m | Wed |
| Southwest SWA3415 | 9:47p | 2h37m | Mon |
| Southwest SWA3415 | 9:56p | 2h31m | Thu |
| Southwest SWA4800 | 10:08p | 2h37m | Wed |
| United UAL2651 | 10:45p | 2h11m | Fri |
| Southwest SWA3415 | 10:51p | 2h31m | Fri |
| United UAL360 | 11:08p | 2h10m | Fri |
| Southwest SWA555 | 11:20p | 2h30m | Thu |
Delta
Southwest
UnitedThe route
One hop: DEN → SEADrag to pan · scroll with ⌘/Ctrl to zoom · arrow keys when focused
Nonstop from Denver (DEN) to Seattle (SEA)
Denver International Airport (DEN) has 137 nonstop flights a week to Seattle (SEA), operated by Alaska, Delta, Frontier, Southwest and United. No layovers, no connections — one hop out of DEN and you're there.
This route flies every day of the week, so any travel day works. Route data updated September 2026 from observed departures.
Route data updated September 2026 from observed flight departures. Schedules change — always confirm with the airline before booking.
How long is the flight from Denver to Seattle?
The nonstop flight from Denver (DEN) to Seattle (SEA) takes about 2h25m in the air, based on recently observed nonstop departures.