All airlines flying from Denver (DEN) to Seattle-Tacoma (SEA).

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FLIGHT SCHEDULE
Direct Flights:
Mon,Thu-Sun 22:29 Denver (DEN) 00:34 Seattle-Tacoma (SEA) Frontier Airlines F9 3405 Non-stop Airbus A321neo (32Q) 3:05 Effective 2025-06-01 through 2025-06-09 The flight arrives 1 day after departure.
Thu,Fri,Sun 22:29 Denver (DEN) 00:34 Seattle-Tacoma (SEA) Frontier Airlines F9 3405 Non-stop Airbus A321 (321) 3:05 Effective 2025-06-12 through 2025-08-17 The flight arrives 1 day after departure.
Mon 22:29 Denver (DEN) 00:34 Seattle-Tacoma (SEA) Frontier Airlines F9 3405 Non-stop Airbus A321neo (32Q) 3:05 Effective 2025-06-16 through 2025-08-18 The flight arrives 1 day after departure.
Thu 22:36 Denver (DEN) 00:44 Seattle-Tacoma (SEA) Frontier Airlines F9 3405 Non-stop Airbus A321neo (32Q) 3:08 Operates only on 2025-05-01 The flight arrives 1 day after departure.
Thu,Fri,Sun 22:36 Denver (DEN) 00:44 Seattle-Tacoma (SEA) Frontier Airlines F9 3405 Non-stop Airbus A321 (321) 3:08 Effective 2025-05-02 through 2025-05-08 The flight arrives 1 day after departure.
Mon,Fri,Sat 22:36 Denver (DEN) 00:44 Seattle-Tacoma (SEA) Frontier Airlines F9 3405 Non-stop Airbus A320neo (32N) 3:08 Effective 2025-05-03 through 2025-05-09 The flight arrives 1 day after departure.
Sat 22:36 Denver (DEN) 00:44 Seattle-Tacoma (SEA) Frontier Airlines F9 3405 Non-stop Airbus A321neo (32Q) 3:08 Operates only on 2025-05-10 The flight arrives 1 day after departure.
Thu,Sun 22:36 Denver (DEN) 00:44 Seattle-Tacoma (SEA) Frontier Airlines F9 3405 Non-stop Airbus A321 (321) 3:08 Effective 2025-05-11 through 2025-05-18 The flight arrives 1 day after departure.
Mon,Fri,Sat 22:36 Denver (DEN) 00:44 Seattle-Tacoma (SEA) Frontier Airlines F9 3405 Non-stop Airbus A320neo (32N) 3:08 Effective 2025-05-12 through 2025-05-19 The flight arrives 1 day after departure.
Mon,Thu,Fri,Sun 19:50 Denver (DEN) 22:05 Seattle-Tacoma (SEA) Delta Air Lines DL 3681 Non-stop Embraer EMB 175 (E7W) 3:15 Valid until 2025-05-05
Daily 12:20 Denver (DEN) 14:23 Seattle-Tacoma (SEA) Delta Air Lines DL 3685 Non-stop Embraer EMB 175 (E7W) 3:03 Effective from 2026-01-06
Daily 19:50 Denver (DEN) 22:07 Seattle-Tacoma (SEA) Delta Air Lines DL 4026 Non-stop Embraer EMB 175 (E7W) 3:17 Effective 2025-11-06 through 2025-12-19
Daily 19:50 Denver (DEN) 22:05 Seattle-Tacoma (SEA) Delta Air Lines DL 4026 Non-stop Embraer EMB 175 (E7W) 3:15 Effective from 2026-01-06
Sun 13:55 Denver (DEN) 15:55 Seattle-Tacoma (SEA) Southwest Airlines WN 4190 Non-stop Boeing 737 MAX 8 (7M8) 3:00 Operates only on 2025-05-25
Sat 14:45 Denver (DEN) 16:40 Seattle-Tacoma (SEA) Southwest Airlines WN 4448 Non-stop Boeing 737 MAX 8 (7M8) 2:55 Effective 2025-10-04 through 2025-11-01
Fri 18:55 Denver (DEN) 20:55 Seattle-Tacoma (SEA) Southwest Airlines WN 4453 Non-stop Boeing 737 MAX 8 (7M8) 3:00 Operates only on 2025-07-04
Mon,Thu,Fri,Sun 19:25 Denver (DEN) 21:25 Seattle-Tacoma (SEA) Southwest Airlines WN 4453 Non-stop Boeing 737 MAX 8 (7M8) 3:00 Effective 2025-06-05 through 2025-07-03
Tue,Wed 19:25 Denver (DEN) 21:25 Seattle-Tacoma (SEA) Southwest Airlines WN 4453 Non-stop Boeing 737-800 (73H) 3:00 Effective 2025-06-10 through 2025-07-30
Mon,Thu,Fri,Sun 19:25 Denver (DEN) 21:25 Seattle-Tacoma (SEA) Southwest Airlines WN 4453 Non-stop Boeing 737 MAX 8 (7M8) 3:00 Effective 2025-07-06 through 2025-08-04
Tue 21:21 Denver (DEN) 23:27 Seattle-Tacoma (SEA) Frontier Airlines F9 4545 Non-stop Airbus A321neo (32Q) 3:06 Operates only on 2025-05-27
Tue 21:29 Denver (DEN) 23:37 Seattle-Tacoma (SEA) Frontier Airlines F9 4545 Non-stop Airbus A321neo (32Q) 3:08 Effective 2025-06-03 through 2025-06-10
Sat 21:36 Denver (DEN) 23:44 Seattle-Tacoma (SEA) Frontier Airlines F9 4545 Non-stop Airbus A321neo (32Q) 3:08 Effective 2025-06-14 through 2025-08-16
Tue 21:36 Denver (DEN) 23:44 Seattle-Tacoma (SEA) Frontier Airlines F9 4545 Non-stop Airbus A321 (321) 3:08 Effective 2025-06-17 through 2025-08-12
Tue 21:43 Denver (DEN) 23:49 Seattle-Tacoma (SEA) Frontier Airlines F9 4545 Non-stop Airbus A321neo (32Q) 3:06 Operates only on 2025-05-06
Tue 21:43 Denver (DEN) 23:49 Seattle-Tacoma (SEA) Frontier Airlines F9 4545 Non-stop Airbus A321 (321) 3:06 Effective 2025-05-13 through 2025-05-20
Sat 14:15 Denver (DEN) 16:15 Seattle-Tacoma (SEA) Southwest Airlines WN 4605 Non-stop Boeing 737 MAX 8 (7M8) 3:00 Effective 2025-11-22 through 2025-11-29
Sat 14:15 Denver (DEN) 16:15 Seattle-Tacoma (SEA) Southwest Airlines WN 4605 Non-stop Boeing 737 MAX 8 (7M8) 3:00 Effective 2025-12-20 through 2026-01-03
Sun 14:35 Denver (DEN) 16:30 Seattle-Tacoma (SEA) Southwest Airlines WN 4696 Non-stop Boeing 737 MAX 8 (7M8) 2:55 Valid until 2025-05-18
Sun 14:35 Denver (DEN) 16:30 Seattle-Tacoma (SEA) Southwest Airlines WN 4696 Non-stop Boeing 737 MAX 8 (7M8) 2:55 Operates only on 2025-06-01
Non-Direct Flights:
Daily 09:42 Denver (DEN) 16:09 Seattle-Tacoma (SEA) United Airlines UA 2041 1-stop Airbus A321neo (32Q) 7:27 Effective 2025-09-25 through 2025-10-25
Daily 09:59 Denver (DEN) 15:14 Seattle-Tacoma (SEA) United Airlines UA 2041 1-stop Boeing 757-300 (753) 6:15 Effective 2025-08-19 through 2025-09-24
Daily 09:59 Denver (DEN) 15:25 Seattle-Tacoma (SEA) United Airlines UA 2041 1-stop Boeing 737-900 (739) 6:26 Effective 2025-10-26 through 2025-12-01
Daily 09:59 Denver (DEN) 15:15 Seattle-Tacoma (SEA) United Airlines UA 2041 1-stop Boeing 737-900 (739) 6:16 Effective 2025-12-02 through 2026-01-05
Daily 09:59 Denver (DEN) 15:35 Seattle-Tacoma (SEA) United Airlines UA 2041 1-stop Boeing 737-900 (739) 6:36 Effective 2026-01-06 through 2026-02-11
Daily 09:59 Denver (DEN) 15:45 Seattle-Tacoma (SEA) United Airlines UA 2041 1-stop Boeing 737-900 (739) 6:46 Effective from 2026-02-12
Daily 16:25 Denver (DEN) 23:59 Seattle-Tacoma (SEA) United Airlines UA 2200 1-stop Boeing 757-300 (753) 8:34 Effective 2025-08-01 through 2025-08-18
Sat 05:00 Denver (DEN) 11:41 Seattle-Tacoma (SEA) United Airlines UA 2367 1-stop Boeing 737 MAX 8 (7M8) 7:41 Operates only on 2025-06-28
Tue 05:00 Denver (DEN) 10:48 Seattle-Tacoma (SEA) United Airlines UA 2367 1-stop Boeing 737 MAX 8 (7M8) 6:48 Effective 2025-07-01 through 2025-08-12
Sat 05:00 Denver (DEN) 11:41 Seattle-Tacoma (SEA) United Airlines UA 2367 1-stop Boeing 737 MAX 8 (7M8) 7:41 Effective 2025-07-12 through 2025-08-16
Mon,Wed,Thu 05:30 Denver (DEN) 10:48 Seattle-Tacoma (SEA) United Airlines UA 2367 1-stop Boeing 737-800 (738) 6:18 Effective 2025-06-26 through 2025-08-18
Fri 05:30 Denver (DEN) 11:41 Seattle-Tacoma (SEA) United Airlines UA 2367 1-stop Boeing 737-800 (738) 7:11 Effective 2025-06-27 through 2025-07-25
Sun 15:15 Denver (DEN) 19:15 Seattle-Tacoma (SEA) Southwest Airlines WN 2703 1-stop Boeing 737-700 (73W) 5:00 Operates only on 2025-08-31
Fri 12:45 Denver (DEN) 16:45 Seattle-Tacoma (SEA) Southwest Airlines WN 3793 1-stop Boeing 737-700 (73W) 5:00 Operates only on 2025-07-04
Mon,Thu,Fri 19:00 Denver (DEN) 23:25 Seattle-Tacoma (SEA) Southwest Airlines WN 4164 1-stop Boeing 737-700 (73W) 5:25 Valid until 2025-06-02
Sat 09:40 Denver (DEN) 15:55 Seattle-Tacoma (SEA) Southwest Airlines WN 1310 2-stop Boeing 737-700 (Scimitar Winglets) 7:15 Effective 2025-10-04 through 2025-11-01
Fri 09:45 Denver (DEN) 15:50 Seattle-Tacoma (SEA) Southwest Airlines WN 2212 2-stop Boeing 737-700 (73W) 7:05 Operates only on 2025-07-04
Tue,Wed 08:00 Denver (DEN) 16:20 Seattle-Tacoma (SEA) Southwest Airlines WN 2956 2-stop Boeing 737-700 (Scimitar Winglets) 9:20 Effective 2025-10-07 through 2025-10-29
Sun 15:45 Denver (DEN) 23:30 Seattle-Tacoma (SEA) Southwest Airlines WN 1331 3-stop Boeing 737-700 (73W) 8:45 Effective 2025-08-10 through 2025-08-24
Sun 15:45 Denver (DEN) 23:30 Seattle-Tacoma (SEA) Southwest Airlines WN 1331 3-stop Boeing 737-700 (73W) 8:45 Effective 2025-09-07 through 2025-09-28
Tue,Wed 10:35 Denver (DEN) 18:40 Seattle-Tacoma (SEA) Southwest Airlines WN 2476 3-stop Boeing 737-700 (73W) 9:05 Effective 2025-08-05 through 2025-10-01

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Parallax here DEN-SEA

1 2 3 ... 6 7 8 9 10 11 12 ... 23 24 25

A domestic route departing from the Denver airport (DEN) and arriving at Seattle-Tacoma airport (SEA).
The flight distance is 1022 miles, or 1644 km.
The timezone of the departure airport is UTC-7 , and the timezone of the arrival airport is UTC-8 . 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 2:50 and 3:17.

Return (SEA-DEN) flights

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All airlines flying from Denver (DEN) to Seattle-Tacoma (SEA).

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FLIGHT SCHEDULE

Direct Flights:

Frontier Airlines F93405

22:29

Denver (DEN)

00:34(+1)

Seattle-Tacoma (SEA)

Effective 2025-06-01 through 2025-06-09

Mon

Tue
-

Wed
-

Thu

Fri

Sat

Sun

Duration: 3:05, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.

Frontier Airlines F93405

22:29

Denver (DEN)

00:34(+1)

Seattle-Tacoma (SEA)

Effective 2025-06-12 through 2025-08-17

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 3:05, non-stop
Airbus A321 (321)
The flight arrives 1 day after departure.

Frontier Airlines F93405

22:29

Denver (DEN)

00:34(+1)

Seattle-Tacoma (SEA)

Effective 2025-06-16 through 2025-08-18

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:05, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.

Frontier Airlines F93405

22:36

Denver (DEN)

00:44(+1)

Seattle-Tacoma (SEA)

Operates only on 2025-05-01

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 3:08, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.

Frontier Airlines F93405

22:36

Denver (DEN)

00:44(+1)

Seattle-Tacoma (SEA)

Effective 2025-05-02 through 2025-05-08

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 3:08, non-stop
Airbus A321 (321)
The flight arrives 1 day after departure.

Frontier Airlines F93405

22:36

Denver (DEN)

00:44(+1)

Seattle-Tacoma (SEA)

Effective 2025-05-03 through 2025-05-09

Mon

Tue
-

Wed
-

Thu
-

Fri

Sat

Sun
-

Duration: 3:08, non-stop
Airbus A320neo (32N)
The flight arrives 1 day after departure.

Frontier Airlines F93405

22:36

Denver (DEN)

00:44(+1)

Seattle-Tacoma (SEA)

Operates only on 2025-05-10

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:08, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.

Frontier Airlines F93405

22:36

Denver (DEN)

00:44(+1)

Seattle-Tacoma (SEA)

Effective 2025-05-11 through 2025-05-18

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun

Duration: 3:08, non-stop
Airbus A321 (321)
The flight arrives 1 day after departure.

Frontier Airlines F93405

22:36

Denver (DEN)

00:44(+1)

Seattle-Tacoma (SEA)

Effective 2025-05-12 through 2025-05-19

Mon

Tue
-

Wed
-

Thu
-

Fri

Sat

Sun
-

Duration: 3:08, non-stop
Airbus A320neo (32N)
The flight arrives 1 day after departure.

Delta Air Lines DL3681

19:50

Denver (DEN)

22:05

Seattle-Tacoma (SEA)

Valid until 2025-05-05

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 3:15, non-stop
Embraer EMB 175 (E7W)

Delta Air Lines DL3685

12:20

Denver (DEN)

14:23

Seattle-Tacoma (SEA)

Effective from 2026-01-06

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:03, non-stop
Embraer EMB 175 (E7W)

Delta Air Lines DL4026

19:50

Denver (DEN)

22:07

Seattle-Tacoma (SEA)

Effective 2025-11-06 through 2025-12-19

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:17, non-stop
Embraer EMB 175 (E7W)

Delta Air Lines DL4026

19:50

Denver (DEN)

22:05

Seattle-Tacoma (SEA)

Effective from 2026-01-06

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:15, non-stop
Embraer EMB 175 (E7W)

Southwest Airlines WN4190

13:55

Denver (DEN)

15:55

Seattle-Tacoma (SEA)

Operates only on 2025-05-25

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:00, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN4448

14:45

Denver (DEN)

16:40

Seattle-Tacoma (SEA)

Effective 2025-10-04 through 2025-11-01

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:55, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN4453

18:55

Denver (DEN)

20:55

Seattle-Tacoma (SEA)

Operates only on 2025-07-04

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Duration: 3:00, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN4453

19:25

Denver (DEN)

21:25

Seattle-Tacoma (SEA)

Effective 2025-06-05 through 2025-07-03

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 3:00, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN4453

19:25

Denver (DEN)

21:25

Seattle-Tacoma (SEA)

Effective 2025-06-10 through 2025-07-30

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:00, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN4453

19:25

Denver (DEN)

21:25

Seattle-Tacoma (SEA)

Effective 2025-07-06 through 2025-08-04

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 3:00, non-stop
Boeing 737 MAX 8 (7M8)

Frontier Airlines F94545

21:21

Denver (DEN)

23:27

Seattle-Tacoma (SEA)

Operates only on 2025-05-27

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:06, non-stop
Airbus A321neo (32Q)

Frontier Airlines F94545

21:29

Denver (DEN)

23:37

Seattle-Tacoma (SEA)

Effective 2025-06-03 through 2025-06-10

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:08, non-stop
Airbus A321neo (32Q)

Frontier Airlines F94545

21:36

Denver (DEN)

23:44

Seattle-Tacoma (SEA)

Effective 2025-06-14 through 2025-08-16

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:08, non-stop
Airbus A321neo (32Q)

Frontier Airlines F94545

21:36

Denver (DEN)

23:44

Seattle-Tacoma (SEA)

Effective 2025-06-17 through 2025-08-12

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:08, non-stop
Airbus A321 (321)

Frontier Airlines F94545

21:43

Denver (DEN)

23:49

Seattle-Tacoma (SEA)

Operates only on 2025-05-06

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:06, non-stop
Airbus A321neo (32Q)

Frontier Airlines F94545

21:43

Denver (DEN)

23:49

Seattle-Tacoma (SEA)

Effective 2025-05-13 through 2025-05-20

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:06, non-stop
Airbus A321 (321)

Southwest Airlines WN4605

14:15

Denver (DEN)

16:15

Seattle-Tacoma (SEA)

Effective 2025-11-22 through 2025-11-29

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:00, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN4605

14:15

Denver (DEN)

16:15

Seattle-Tacoma (SEA)

Effective 2025-12-20 through 2026-01-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:00, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN4696

14:35

Denver (DEN)

16:30

Seattle-Tacoma (SEA)

Valid until 2025-05-18

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:55, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN4696

14:35

Denver (DEN)

16:30

Seattle-Tacoma (SEA)

Operates only on 2025-06-01

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:55, non-stop
Boeing 737 MAX 8 (7M8)

Non-Direct Flights:

United Airlines UA2041

09:42

Denver (DEN)

16:09

Seattle-Tacoma (SEA)

Effective 2025-09-25 through 2025-10-25

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 7:27, 1-stop
Airbus A321neo (32Q)

United Airlines UA2041

09:59

Denver (DEN)

15:14

Seattle-Tacoma (SEA)

Effective 2025-08-19 through 2025-09-24

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 6:15, 1-stop
Boeing 757-300 (753)

United Airlines UA2041

09:59

Denver (DEN)

15:25

Seattle-Tacoma (SEA)

Effective 2025-10-26 through 2025-12-01

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 6:26, 1-stop
Boeing 737-900 (739)

United Airlines UA2041

09:59

Denver (DEN)

15:15

Seattle-Tacoma (SEA)

Effective 2025-12-02 through 2026-01-05

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 6:16, 1-stop
Boeing 737-900 (739)

United Airlines UA2041

09:59

Denver (DEN)

15:35

Seattle-Tacoma (SEA)

Effective 2026-01-06 through 2026-02-11

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 6:36, 1-stop
Boeing 737-900 (739)

United Airlines UA2041

09:59

Denver (DEN)

15:45

Seattle-Tacoma (SEA)

Effective from 2026-02-12

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 6:46, 1-stop
Boeing 737-900 (739)

United Airlines UA2200

16:25

Denver (DEN)

23:59

Seattle-Tacoma (SEA)

Effective 2025-08-01 through 2025-08-18

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 8:34, 1-stop
Boeing 757-300 (753)

United Airlines UA2367

05:00

Denver (DEN)

11:41

Seattle-Tacoma (SEA)

Operates only on 2025-06-28

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 7:41, 1-stop
Boeing 737 MAX 8 (7M8)

United Airlines UA2367

05:00

Denver (DEN)

10:48

Seattle-Tacoma (SEA)

Effective 2025-07-01 through 2025-08-12

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 6:48, 1-stop
Boeing 737 MAX 8 (7M8)

United Airlines UA2367

05:00

Denver (DEN)

11:41

Seattle-Tacoma (SEA)

Effective 2025-07-12 through 2025-08-16

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 7:41, 1-stop
Boeing 737 MAX 8 (7M8)

United Airlines UA2367

05:30

Denver (DEN)

10:48

Seattle-Tacoma (SEA)

Effective 2025-06-26 through 2025-08-18

Mon

Tue
-

Wed

Thu

Fri
-

Sat
-

Sun
-

Duration: 6:18, 1-stop
Boeing 737-800 (738)

United Airlines UA2367

05:30

Denver (DEN)

11:41

Seattle-Tacoma (SEA)

Effective 2025-06-27 through 2025-07-25

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Duration: 7:11, 1-stop
Boeing 737-800 (738)

Southwest Airlines WN2703

15:15

Denver (DEN)

19:15

Seattle-Tacoma (SEA)

Operates only on 2025-08-31

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 5:00, 1-stop
Boeing 737-700 (73W)

Southwest Airlines WN3793

12:45

Denver (DEN)

16:45

Seattle-Tacoma (SEA)

Operates only on 2025-07-04

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Duration: 5:00, 1-stop
Boeing 737-700 (73W)

Southwest Airlines WN4164

19:00

Denver (DEN)

23:25

Seattle-Tacoma (SEA)

Valid until 2025-06-02

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 5:25, 1-stop
Boeing 737-700 (73W)

Southwest Airlines WN1310

09:40

Denver (DEN)

15:55

Seattle-Tacoma (SEA)

Effective 2025-10-04 through 2025-11-01

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 7:15, 2-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN2212

09:45

Denver (DEN)

15:50

Seattle-Tacoma (SEA)

Operates only on 2025-07-04

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Duration: 7:05, 2-stop
Boeing 737-700 (73W)

Southwest Airlines WN2956

08:00

Denver (DEN)

16:20

Seattle-Tacoma (SEA)

Effective 2025-10-07 through 2025-10-29

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 9:20, 2-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN1331

15:45

Denver (DEN)

23:30

Seattle-Tacoma (SEA)

Effective 2025-08-10 through 2025-08-24

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 8:45, 3-stop
Boeing 737-700 (73W)

Southwest Airlines WN1331

15:45

Denver (DEN)

23:30

Seattle-Tacoma (SEA)

Effective 2025-09-07 through 2025-09-28

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 8:45, 3-stop
Boeing 737-700 (73W)

Southwest Airlines WN2476

10:35

Denver (DEN)

18:40

Seattle-Tacoma (SEA)

Effective 2025-08-05 through 2025-10-01

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 9:05, 3-stop
Boeing 737-700 (73W)

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A domestic route departing from the Denver airport (DEN) and arriving at Seattle-Tacoma airport (SEA).
The flight distance is 1022 miles, or 1644 km.
The timezone of the departure airport is UTC-7 , and the timezone of the arrival airport is UTC-8 . 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 2:50 and 3:17.

Return (SEA-DEN) flights

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