Alaska Airlines flights from Seattle-Tacoma (SEA) to Denver (DEN).
| FLIGHT SCHEDULE |
|---|
| Direct Flights: |
| Sun
15:16
Seattle-Tacoma (SEA)
18:56
Denver (DEN) Alaska Airlines AS 190 Non-stop Boeing 737 (73J) 2:40 Operates only on 2026-03-08 |
| Daily
20:23
Seattle-Tacoma (SEA)
00:05
Denver (DEN) Alaska Airlines AS 321 Non-stop Boeing 737 (73J) 2:42 Effective 2026-05-13 through 2026-06-09 The flight arrives 1 day after departure. |
| Daily
10:15
Seattle-Tacoma (SEA)
13:58
Denver (DEN) Alaska Airlines AS 424 Non-stop Boeing 737 (73J) 2:43 Effective 2026-05-13 through 2026-06-09 |
| Daily
08:18
Seattle-Tacoma (SEA)
12:00
Denver (DEN) Alaska Airlines AS 425 Non-stop Boeing 737 (73J) 2:42 Effective 2026-05-13 through 2026-06-09 |
| Tue
20:17
Seattle-Tacoma (SEA)
23:59
Denver (DEN) Alaska Airlines AS 495 Non-stop Boeing 737 MAX 9 (7M9) 2:42 Operates only on 2026-01-06 |
| Daily
17:55
Seattle-Tacoma (SEA)
21:38
Denver (DEN) Alaska Airlines AS 524 Non-stop Boeing 737 (73J) 2:43 Effective 2026-05-13 through 2026-06-09 |
| Daily
10:20
Seattle-Tacoma (SEA)
14:09
Denver (DEN) Alaska Airlines AS 535 Non-stop Boeing 737 (73J) 2:49 Effective 2026-06-10 through 2026-10-02 |
| Daily
11:08
Seattle-Tacoma (SEA)
14:50
Denver (DEN) Alaska Airlines AS 535 Non-stop Boeing 737 (73J) 2:42 Valid until 2026-01-06 |
| Sat
13:36
Seattle-Tacoma (SEA)
17:20
Denver (DEN) Alaska Airlines AS 578 Non-stop Boeing 737 MAX 9 (7M9) 2:44 Operates only on 2026-03-07 |
| Daily
13:09
Seattle-Tacoma (SEA)
16:49
Denver (DEN) Alaska Airlines AS 602 Non-stop Boeing 737 (73J) 2:40 Effective 2026-05-13 through 2026-06-09 |
| Mon-Wed,Fri,Sun
14:10
Seattle-Tacoma (SEA)
17:52
Denver (DEN) Alaska Airlines AS 602 Non-stop Boeing 737 (73J) 2:42 Valid until 2026-01-06 |
| Thu,Sat
14:10
Seattle-Tacoma (SEA)
17:52
Denver (DEN) Alaska Airlines AS 602 Non-stop Boeing 737 MAX 9 (7M9) 2:42 Valid until 2026-01-03 |
| Mon,Thu-Sun
15:16
Seattle-Tacoma (SEA)
18:56
Denver (DEN) Alaska Airlines AS 602 Non-stop Boeing 737 (73J) 2:40 Effective 2026-02-13 through 2026-03-02 |
| Thu
15:16
Seattle-Tacoma (SEA)
18:56
Denver (DEN) Alaska Airlines AS 602 Non-stop Boeing 737 MAX 9 (7M9) 2:40 Operates only on 2026-03-05 |
| Mon,Thu-Sat
15:16
Seattle-Tacoma (SEA)
18:56
Denver (DEN) Alaska Airlines AS 602 Non-stop Boeing 737 (73J) 2:40 Effective 2026-03-06 through 2026-03-13 |
| Mon,Sat
15:16
Seattle-Tacoma (SEA)
18:56
Denver (DEN) Alaska Airlines AS 602 Non-stop Boeing 737 MAX 9 (7M9) 2:40 Effective 2026-03-14 through 2026-03-16 |
| Sun
15:16
Seattle-Tacoma (SEA)
18:56
Denver (DEN) Alaska Airlines AS 602 Non-stop Boeing 737 (73J) 2:40 Operates only on 2026-03-15 |
| Wed
15:35
Seattle-Tacoma (SEA)
19:19
Denver (DEN) Alaska Airlines AS 602 Non-stop Boeing 737 (73J) 2:44 Operates only on 2026-03-18 |
| Daily
15:35
Seattle-Tacoma (SEA)
19:14
Denver (DEN) Alaska Airlines AS 602 Non-stop Boeing 737 (73J) 2:39 Effective 2026-03-19 through 2026-05-12 |
| Daily
15:49
Seattle-Tacoma (SEA)
19:39
Denver (DEN) Alaska Airlines AS 602 Non-stop Boeing 737 (73J) 2:50 Effective 2026-06-10 through 2026-08-18 |
| Daily
16:40
Seattle-Tacoma (SEA)
20:30
Denver (DEN) Alaska Airlines AS 602 Non-stop Boeing 737 (73J) 2:50 Effective from 2026-08-19 |
| Mon-Fri,Sun
19:54
Seattle-Tacoma (SEA)
23:35
Denver (DEN) Alaska Airlines AS 602 Non-stop Boeing 737 MAX 9 (7M9) 2:41 Effective 2026-01-07 through 2026-01-15 |
| Fri,Sat
19:54
Seattle-Tacoma (SEA)
23:35
Denver (DEN) Alaska Airlines AS 602 Non-stop Boeing 737 (73J) 2:41 Effective 2026-01-10 through 2026-01-17 |
| Tue-Sun
19:54
Seattle-Tacoma (SEA)
23:35
Denver (DEN) Alaska Airlines AS 602 Non-stop Boeing 737 MAX 9 (7M9) 2:41 Effective 2026-01-18 through 2026-01-24 |
| Mon,Sun
19:54
Seattle-Tacoma (SEA)
23:35
Denver (DEN) Alaska Airlines AS 602 Non-stop Boeing 737 (73J) 2:41 Effective 2026-01-19 through 2026-01-25 |
| Mon,Tue,Thu,Fri,Sun
19:54
Seattle-Tacoma (SEA)
23:35
Denver (DEN) Alaska Airlines AS 602 Non-stop Boeing 737 MAX 9 (7M9) 2:41 Effective 2026-01-26 through 2026-02-01 |
| Mon,Wed,Sat
19:54
Seattle-Tacoma (SEA)
23:35
Denver (DEN) Alaska Airlines AS 602 Non-stop Boeing 737 (73J) 2:41 Effective 2026-01-28 through 2026-02-02 |
| Tue-Fri,Sun
19:54
Seattle-Tacoma (SEA)
23:35
Denver (DEN) Alaska Airlines AS 602 Non-stop Boeing 737 MAX 9 (7M9) 2:41 Effective 2026-02-03 through 2026-02-10 |
| Mon,Wed,Sat
19:54
Seattle-Tacoma (SEA)
23:35
Denver (DEN) Alaska Airlines AS 602 Non-stop Boeing 737 (73J) 2:41 Effective 2026-02-07 through 2026-02-11 |
| Tue,Wed
17:40
Seattle-Tacoma (SEA)
21:23
Denver (DEN) Alaska Airlines AS 612 Non-stop Boeing 737 (73J) 2:43 Effective 2026-02-17 through 2026-03-17 |
| Daily
11:30
Seattle-Tacoma (SEA)
15:16
Denver (DEN) Alaska Airlines AS 620 Non-stop Boeing 737 (73J) 2:46 Effective from 2026-10-03 |
| Daily
13:13
Seattle-Tacoma (SEA)
16:59
Denver (DEN) Alaska Airlines AS 620 Non-stop Boeing 737 (73J) 2:46 Effective 2026-06-10 through 2026-10-02 |
| Mon,Tue,Fri-Sun
18:52
Seattle-Tacoma (SEA)
22:32
Denver (DEN) Alaska Airlines AS 642 Non-stop Boeing 737 (73J) 2:40 Valid until 2026-01-05 |
| Wed
18:55
Seattle-Tacoma (SEA)
22:39
Denver (DEN) Alaska Airlines AS 642 Non-stop Boeing 737 (73J) 2:44 Operates only on 2026-03-18 |
| Daily
19:55
Seattle-Tacoma (SEA)
23:33
Denver (DEN) Alaska Airlines AS 642 Non-stop Boeing 737 (73J) 2:38 Effective 2026-03-19 through 2026-05-12 |
| Daily
20:13
Seattle-Tacoma (SEA)
23:59
Denver (DEN) Alaska Airlines AS 642 Non-stop Boeing 737 (73J) 2:46 Effective 2026-06-10 through 2026-08-18 |
| Mon,Thu-Sun
20:14
Seattle-Tacoma (SEA)
23:59
Denver (DEN) Alaska Airlines AS 642 Non-stop Boeing 737 (73J) 2:45 Effective 2026-02-12 through 2026-03-05 |
| Thu-Sat
20:14
Seattle-Tacoma (SEA)
23:59
Denver (DEN) Alaska Airlines AS 642 Non-stop Boeing 737 MAX 9 (7M9) 2:45 Effective 2026-03-06 through 2026-03-14 |
| Sun
20:14
Seattle-Tacoma (SEA)
23:59
Denver (DEN) Alaska Airlines AS 642 Non-stop Boeing 737-800 (73H) 2:45 Operates only on 2026-03-08 |
| Mon,Sun
20:14
Seattle-Tacoma (SEA)
23:59
Denver (DEN) Alaska Airlines AS 642 Non-stop Boeing 737 (73J) 2:45 Effective 2026-03-09 through 2026-03-16 |
| Thu
15:16
Seattle-Tacoma (SEA)
18:56
Denver (DEN) Alaska Airlines AS 651 Non-stop Boeing 737 (73J) 2:40 Operates only on 2026-02-12 |
| Mon
07:30
Seattle-Tacoma (SEA)
11:16
Denver (DEN) Alaska Airlines AS 682 Non-stop Boeing 737-800 (73H) 2:46 Valid until 2026-01-05 |
| Thu
07:30
Seattle-Tacoma (SEA)
11:16
Denver (DEN) Alaska Airlines AS 682 Non-stop Boeing 737 MAX 9 (7M9) 2:46 Operates only on 2026-01-01 |
| Fri
07:30
Seattle-Tacoma (SEA)
11:16
Denver (DEN) Alaska Airlines AS 682 Non-stop Boeing 737-700 (73G) 2:46 Operates only on 2026-01-02 |
| Tue
07:30
Seattle-Tacoma (SEA)
11:16
Denver (DEN) Alaska Airlines AS 682 Non-stop Boeing 737-800 (73H) 2:46 Operates only on 2026-01-06 |
| Wed
07:55
Seattle-Tacoma (SEA)
11:39
Denver (DEN) Alaska Airlines AS 682 Non-stop Boeing 737 (73J) 2:44 Operates only on 2026-03-18 |
| Daily
07:55
Seattle-Tacoma (SEA)
11:49
Denver (DEN) Alaska Airlines AS 682 Non-stop Boeing 737 (73J) 2:54 Effective 2026-03-19 through 2026-05-12 |
| Daily
08:06
Seattle-Tacoma (SEA)
11:55
Denver (DEN) Alaska Airlines AS 682 Non-stop Boeing 737 (73J) 2:49 Effective from 2026-06-10 |
| Daily
08:30
Seattle-Tacoma (SEA)
12:14
Denver (DEN) Alaska Airlines AS 682 Non-stop Boeing 737 (73J) 2:44 Effective 2026-02-12 through 2026-03-05 |
| Fri
08:30
Seattle-Tacoma (SEA)
12:14
Denver (DEN) Alaska Airlines AS 682 Non-stop Boeing 737 MAX 9 (7M9) 2:44 Operates only on 2026-03-06 |
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- A domestic route departing from the Seattle-Tacoma airport (SEA) and arriving at Denver airport (DEN).
- The flight distance is 1022 miles, or 1644 km.
- The timezone of the departure airport is UTC-8 , and the timezone of the arrival airport is UTC-7 . Current time at the point of departure is (loading...), and (loading...) at the point of arrival. There is a (loading...) hour time difference between the airports.
- For direct flights, the flight time varies between 2:38 and 2:54.
