Alaska Airlines flights from Seattle-Tacoma (SEA) to Denver (DEN).

FLIGHT SCHEDULE
Direct Flights:
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,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
Daily 12:40 Seattle-Tacoma (SEA) 16:21 Denver (DEN) Alaska Airlines AS 786 Non-stop Boeing 737 (73J) 2:41 Effective 2026-03-19 through 2026-05-12
Tue,Thu 13:36 Seattle-Tacoma (SEA) 17:20 Denver (DEN) Alaska Airlines AS 786 Non-stop Boeing 737 (73J) 2:44 Effective 2026-02-12 through 2026-02-17
Wed-Sun 13:36 Seattle-Tacoma (SEA) 17:20 Denver (DEN) Alaska Airlines AS 786 Non-stop Boeing 737 MAX 9 (7M9) 2:44 Effective 2026-02-13 through 2026-02-22
Mon,Wed-Sun 13:36 Seattle-Tacoma (SEA) 17:20 Denver (DEN) Alaska Airlines AS 786 Non-stop Boeing 737 MAX 9 (7M9) 2:44 Effective 2026-02-23 through 2026-03-06
Tue 13:36 Seattle-Tacoma (SEA) 17:20 Denver (DEN) Alaska Airlines AS 786 Non-stop Boeing 737 (73J) 2:44 Effective 2026-02-24 through 2026-03-10
Sun 13:36 Seattle-Tacoma (SEA) 17:20 Denver (DEN) Alaska Airlines AS 786 Non-stop Boeing 737-700 (73G) 2:44 Operates only on 2026-03-08
Mon,Wed,Thu 13:36 Seattle-Tacoma (SEA) 17:20 Denver (DEN) Alaska Airlines AS 786 Non-stop Boeing 737 MAX 9 (7M9) 2:44 Effective 2026-03-09 through 2026-03-12
Mon,Tue,Fri,Sun 13:36 Seattle-Tacoma (SEA) 17:20 Denver (DEN) Alaska Airlines AS 786 Non-stop Boeing 737 (73J) 2:44 Effective 2026-03-13 through 2026-03-17
Fri 20:17 Seattle-Tacoma (SEA) 23:59 Denver (DEN) Alaska Airlines AS 787 Non-stop Boeing 737-800 (73H) 2:42 Valid until 2026-01-02
Mon,Wed,Sat 20:17 Seattle-Tacoma (SEA) 23:59 Denver (DEN) Alaska Airlines AS 787 Non-stop Boeing 737 (73J) 2:42 Valid until 2026-01-05
Tue,Thu,Sun 20:17 Seattle-Tacoma (SEA) 23:59 Denver (DEN) Alaska Airlines AS 787 Non-stop Boeing 737 MAX 9 (7M9) 2:42 Valid until 2026-01-04
Daily 10:05 Seattle-Tacoma (SEA) 13:59 Denver (DEN) Alaska Airlines AS 1332 Non-stop Boeing 737 (73J) 2:54 Effective 2026-04-22 through 2026-05-12
Daily 17:59 Seattle-Tacoma (SEA) 21:48 Denver (DEN) Alaska Airlines AS 1403 Non-stop Boeing 737 (73J) 2:49 Effective 2026-06-10 through 2026-08-18
Daily 19:59 Seattle-Tacoma (SEA) 23:48 Denver (DEN) Alaska Airlines AS 1403 Non-stop Boeing 737 (73J) 2:49 Effective from 2026-08-19

1 2

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.

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Alaska Airlines flights from Seattle-Tacoma (SEA) to Denver (DEN).

FLIGHT SCHEDULE

Direct Flights:

Alaska Airlines AS682

08:30

Seattle-Tacoma (SEA)

12:14

Denver (DEN)

Effective 2026-03-07 through 2026-03-14

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 2:44, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS682

08:30

Seattle-Tacoma (SEA)

12:14

Denver (DEN)

Effective 2026-03-15 through 2026-03-17

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:44, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Alaska Airlines AS682

08:30

Seattle-Tacoma (SEA)

12:14

Denver (DEN)

Operates only on 2026-03-16

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:44, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS682

08:55

Seattle-Tacoma (SEA)

12:38

Denver (DEN)

Operates only on 2026-01-07

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:43, non-stop
Boeing 737-800 (73H)

Direct Flights:

Alaska Airlines AS682

08:55

Seattle-Tacoma (SEA)

12:38

Denver (DEN)

Effective 2026-01-08 through 2026-01-18

Mon
-

Tue

Wed

Thu

Fri
-

Sat

Sun

Duration: 2:43, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS682

08:55

Seattle-Tacoma (SEA)

12:38

Denver (DEN)

Operates only on 2026-01-12

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:43, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Alaska Airlines AS682

08:55

Seattle-Tacoma (SEA)

12:38

Denver (DEN)

Effective 2026-01-19 through 2026-01-24

Mon

Tue

Wed

Thu

Fri
-

Sat

Sun
-

Duration: 2:43, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS682

08:55

Seattle-Tacoma (SEA)

12:38

Denver (DEN)

Effective 2026-01-25 through 2026-01-26

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:43, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Alaska Airlines AS682

08:55

Seattle-Tacoma (SEA)

12:38

Denver (DEN)

Operates only on 2026-01-27

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:43, non-stop
Boeing 737-800 (73H)

Direct Flights:

Alaska Airlines AS682

08:55

Seattle-Tacoma (SEA)

12:38

Denver (DEN)

Effective 2026-01-28 through 2026-02-08

Mon
-

Tue

Wed

Thu

Fri
-

Sat

Sun

Duration: 2:43, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS682

08:55

Seattle-Tacoma (SEA)

12:38

Denver (DEN)

Effective 2026-02-02 through 2026-02-09

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:43, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Alaska Airlines AS682

08:55

Seattle-Tacoma (SEA)

12:38

Denver (DEN)

Effective 2026-02-10 through 2026-02-11

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:43, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Alaska Airlines AS682

09:00

Seattle-Tacoma (SEA)

12:41

Denver (DEN)

Effective 2026-01-09 through 2026-02-06

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Duration: 2:41, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Alaska Airlines AS786

12:30

Seattle-Tacoma (SEA)

16:13

Denver (DEN)

Effective 2026-01-08 through 2026-01-12

Mon

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun

Duration: 2:43, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS786

12:30

Seattle-Tacoma (SEA)

16:13

Denver (DEN)

Effective 2026-01-09 through 2026-01-15

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat

Sun
-

Duration: 2:43, non-stop
Boeing 737-800 (73H)

Direct Flights:

Alaska Airlines AS786

12:30

Seattle-Tacoma (SEA)

16:13

Denver (DEN)

Effective 2026-01-16 through 2026-01-26

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 2:43, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS786

12:30

Seattle-Tacoma (SEA)

16:13

Denver (DEN)

Effective 2026-01-17 through 2026-01-24

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:43, non-stop
Boeing 737-800 (73H)

Direct Flights:

Alaska Airlines AS786

12:30

Seattle-Tacoma (SEA)

16:13

Denver (DEN)

Effective 2026-01-29 through 2026-02-07

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat

Sun
-

Duration: 2:43, non-stop
Boeing 737-800 (73H)

Direct Flights:

Alaska Airlines AS786

12:30

Seattle-Tacoma (SEA)

16:13

Denver (DEN)

Effective 2026-01-30 through 2026-02-09

Mon

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun

Duration: 2:43, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS786

12:40

Seattle-Tacoma (SEA)

16:24

Denver (DEN)

Operates only on 2026-03-18

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:44, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS786

12:40

Seattle-Tacoma (SEA)

16:21

Denver (DEN)

Effective 2026-03-19 through 2026-05-12

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 2:41, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS786

13:36

Seattle-Tacoma (SEA)

17:20

Denver (DEN)

Effective 2026-02-12 through 2026-02-17

Mon
-

Tue

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 2:44, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS786

13:36

Seattle-Tacoma (SEA)

17:20

Denver (DEN)

Effective 2026-02-13 through 2026-02-22

Mon
-

Tue
-

Wed

Thu

Fri

Sat

Sun

Duration: 2:44, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Alaska Airlines AS786

13:36

Seattle-Tacoma (SEA)

17:20

Denver (DEN)

Effective 2026-02-23 through 2026-03-06

Mon

Tue
-

Wed

Thu

Fri

Sat

Sun

Duration: 2:44, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Alaska Airlines AS786

13:36

Seattle-Tacoma (SEA)

17:20

Denver (DEN)

Effective 2026-02-24 through 2026-03-10

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:44, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS786

13:36

Seattle-Tacoma (SEA)

17:20

Denver (DEN)

Operates only on 2026-03-08

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:44, non-stop
Boeing 737-700 (73G)

Direct Flights:

Alaska Airlines AS786

13:36

Seattle-Tacoma (SEA)

17:20

Denver (DEN)

Effective 2026-03-09 through 2026-03-12

Mon

Tue
-

Wed

Thu

Fri
-

Sat
-

Sun
-

Duration: 2:44, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Alaska Airlines AS786

13:36

Seattle-Tacoma (SEA)

17:20

Denver (DEN)

Effective 2026-03-13 through 2026-03-17

Mon

Tue

Wed
-

Thu
-

Fri

Sat
-

Sun

Duration: 2:44, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS787

20:17

Seattle-Tacoma (SEA)

23:59

Denver (DEN)

Valid until 2026-01-02

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Duration: 2:42, non-stop
Boeing 737-800 (73H)

Direct Flights:

Alaska Airlines AS787

20:17

Seattle-Tacoma (SEA)

23:59

Denver (DEN)

Valid until 2026-01-05

Mon

Tue
-

Wed

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:42, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS787

20:17

Seattle-Tacoma (SEA)

23:59

Denver (DEN)

Valid until 2026-01-04

Mon
-

Tue

Wed
-

Thu

Fri
-

Sat
-

Sun

Duration: 2:42, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Alaska Airlines AS1332

10:05

Seattle-Tacoma (SEA)

13:59

Denver (DEN)

Effective 2026-04-22 through 2026-05-12

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 2:54, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS1403

17:59

Seattle-Tacoma (SEA)

21:48

Denver (DEN)

Effective 2026-06-10 through 2026-08-18

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 2:49, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS1403

19:59

Seattle-Tacoma (SEA)

23:48

Denver (DEN)

Effective from 2026-08-19

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 2:49, non-stop
Boeing 737 (73J)

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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.

All SEA-DEN flights

All Alaska Airlines flights

Return (DEN-SEA) flights

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