All airlines flying from Seattle-Tacoma (SEA) to Denver (DEN).
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| FLIGHT SCHEDULE |
|---|
| Direct Flights: |
| 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 |
| Daily
14:30
Seattle-Tacoma (SEA)
18:14
Denver (DEN) United Airlines UA 663 Non-stop Boeing 737 MAX 9 (7M9) 2:44 Effective 2026-05-21 through 2026-08-17 |
| 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 |
| Daily
08:30
Seattle-Tacoma (SEA)
12:14
Denver (DEN) Alaska Airlines AS 682 Non-stop Boeing 737 (73J) 2:44 Effective 2026-03-07 through 2026-03-14 |
| Tue,Sun
08:30
Seattle-Tacoma (SEA)
12:14
Denver (DEN) Alaska Airlines AS 682 Non-stop Boeing 737 MAX 9 (7M9) 2:44 Effective 2026-03-15 through 2026-03-17 |
| Mon
08:30
Seattle-Tacoma (SEA)
12:14
Denver (DEN) Alaska Airlines AS 682 Non-stop Boeing 737 (73J) 2:44 Operates only on 2026-03-16 |
| Wed
08:55
Seattle-Tacoma (SEA)
12:38
Denver (DEN) Alaska Airlines AS 682 Non-stop Boeing 737-800 (73H) 2:43 Operates only on 2026-01-07 |
| Tue-Thu,Sat,Sun
08:55
Seattle-Tacoma (SEA)
12:38
Denver (DEN) Alaska Airlines AS 682 Non-stop Boeing 737 (73J) 2:43 Effective 2026-01-08 through 2026-01-18 |
| Mon
08:55
Seattle-Tacoma (SEA)
12:38
Denver (DEN) Alaska Airlines AS 682 Non-stop Boeing 737 MAX 9 (7M9) 2:43 Operates only on 2026-01-12 |
| Mon-Thu,Sat
08:55
Seattle-Tacoma (SEA)
12:38
Denver (DEN) Alaska Airlines AS 682 Non-stop Boeing 737 (73J) 2:43 Effective 2026-01-19 through 2026-01-24 |
| Mon,Sun
08:55
Seattle-Tacoma (SEA)
12:38
Denver (DEN) Alaska Airlines AS 682 Non-stop Boeing 737 MAX 9 (7M9) 2:43 Effective 2026-01-25 through 2026-01-26 |
| Tue
08:55
Seattle-Tacoma (SEA)
12:38
Denver (DEN) Alaska Airlines AS 682 Non-stop Boeing 737-800 (73H) 2:43 Operates only on 2026-01-27 |
| Tue-Thu,Sat,Sun
08:55
Seattle-Tacoma (SEA)
12:38
Denver (DEN) Alaska Airlines AS 682 Non-stop Boeing 737 (73J) 2:43 Effective 2026-01-28 through 2026-02-08 |
| Mon
08:55
Seattle-Tacoma (SEA)
12:38
Denver (DEN) Alaska Airlines AS 682 Non-stop Boeing 737 MAX 9 (7M9) 2:43 Effective 2026-02-02 through 2026-02-09 |
| Tue,Wed
08:55
Seattle-Tacoma (SEA)
12:38
Denver (DEN) Alaska Airlines AS 682 Non-stop Boeing 737 MAX 9 (7M9) 2:43 Effective 2026-02-10 through 2026-02-11 |
| Fri
09:00
Seattle-Tacoma (SEA)
12:41
Denver (DEN) Alaska Airlines AS 682 Non-stop Boeing 737 MAX 9 (7M9) 2:41 Effective 2026-01-09 through 2026-02-06 |
| Mon,Thu,Fri
05:35
Seattle-Tacoma (SEA)
09:10
Denver (DEN) Southwest Airlines WN 714 Non-stop Boeing 737 MAX 8 (7M8) 2:35 Effective 2026-03-05 through 2026-04-06 |
| Tue,Wed,Sat,Sun
06:00
Seattle-Tacoma (SEA)
09:40
Denver (DEN) Southwest Airlines WN 714 Non-stop Boeing 737 MAX 8 (7M8) 2:40 Effective 2026-03-07 through 2026-04-05 |
| Mon,Tue,Fri-Sun
05:00
Seattle-Tacoma (SEA)
08:35
Denver (DEN) Southwest Airlines WN 734 Non-stop Boeing 737 MAX 8 (7M8) 2:35 Valid until 2026-01-04 |
| Daily
12:55
Seattle-Tacoma (SEA)
16:41
Denver (DEN) United Airlines UA 757 Non-stop Boeing 737 MAX 9 (7M9) 2:46 Effective 2026-02-12 through 2026-03-04 |
| Mon-Fri
12:55
Seattle-Tacoma (SEA)
16:42
Denver (DEN) United Airlines UA 757 Non-stop Boeing 737-800 (738) 2:47 Effective 2026-03-05 through 2026-03-27 |
| Sat
12:55
Seattle-Tacoma (SEA)
16:42
Denver (DEN) United Airlines UA 757 Non-stop Boeing 737-900 (739) 2:47 Effective 2026-03-07 through 2026-03-28 |
| Sun
12:55
Seattle-Tacoma (SEA)
16:42
Denver (DEN) United Airlines UA 757 Non-stop Boeing 737 MAX 9 (7M9) 2:47 Effective 2026-03-08 through 2026-03-22 |
| Mon-Fri,Sun
15:30
Seattle-Tacoma (SEA)
19:16
Denver (DEN) United Airlines UA 757 Non-stop Boeing 737-900 (739) 2:46 Effective 2026-01-06 through 2026-02-06 |
| Sat
15:30
Seattle-Tacoma (SEA)
19:16
Denver (DEN) United Airlines UA 757 Non-stop Boeing 737-800 (738) 2:46 Effective 2026-01-10 through 2026-01-31 |
| Mon-Wed,Sat,Sun
15:30
Seattle-Tacoma (SEA)
19:16
Denver (DEN) United Airlines UA 757 Non-stop Boeing 737-900 (739) 2:46 Effective 2026-02-07 through 2026-02-11 |
| Daily
15:44
Seattle-Tacoma (SEA)
19:34
Denver (DEN) United Airlines UA 757 Non-stop Boeing 737 MAX 9 (7M9) 2:50 Effective 2026-03-29 through 2026-04-29 |
| Mon-Thu
15:50
Seattle-Tacoma (SEA)
19:37
Denver (DEN) United Airlines UA 757 Non-stop Airbus A320 (320) 2:47 Valid until 2026-01-05 |
| Fri-Sun
15:50
Seattle-Tacoma (SEA)
19:37
Denver (DEN) United Airlines UA 757 Non-stop Airbus A319 (319) 2:47 Valid until 2026-01-04 |
| Daily
15:51
Seattle-Tacoma (SEA)
19:35
Denver (DEN) United Airlines UA 757 Non-stop Boeing 737-800 (738) 2:44 Effective from 2026-04-30 |
| Mon,Thu,Sun
12:30
Seattle-Tacoma (SEA)
16:13
Denver (DEN) Alaska Airlines AS 786 Non-stop Boeing 737 (73J) 2:43 Effective 2026-01-08 through 2026-01-12 |
| Thu-Sat
12:30
Seattle-Tacoma (SEA)
16:13
Denver (DEN) Alaska Airlines AS 786 Non-stop Boeing 737-800 (73H) 2:43 Effective 2026-01-09 through 2026-01-15 |
| Mon,Thu,Fri,Sun
12:30
Seattle-Tacoma (SEA)
16:13
Denver (DEN) Alaska Airlines AS 786 Non-stop Boeing 737 (73J) 2:43 Effective 2026-01-16 through 2026-01-26 |
| Sat
12:30
Seattle-Tacoma (SEA)
16:13
Denver (DEN) Alaska Airlines AS 786 Non-stop Boeing 737-800 (73H) 2:43 Effective 2026-01-17 through 2026-01-24 |
| Thu,Sat
12:30
Seattle-Tacoma (SEA)
16:13
Denver (DEN) Alaska Airlines AS 786 Non-stop Boeing 737-800 (73H) 2:43 Effective 2026-01-29 through 2026-02-07 |
| Mon,Fri,Sun
12:30
Seattle-Tacoma (SEA)
16:13
Denver (DEN) Alaska Airlines AS 786 Non-stop Boeing 737 (73J) 2:43 Effective 2026-01-30 through 2026-02-09 |
| Wed
12:40
Seattle-Tacoma (SEA)
16:24
Denver (DEN) Alaska Airlines AS 786 Non-stop Boeing 737 (73J) 2:44 Operates only on 2026-03-18 |
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Parallax here SEA-DEN
- 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 2:30 and 3:02.
