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

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FLIGHT SCHEDULE
Direct Flights:
Sun 10:30 Seattle-Tacoma (SEA) 14:10 Denver (DEN) Southwest Airlines WN 4660 Non-stop Boeing 737-800 (73H) 2:40 Effective 2026-03-08 through 2026-04-05
Sat 11:10 Seattle-Tacoma (SEA) 14:45 Denver (DEN) Southwest Airlines WN 4660 Non-stop Boeing 737 MAX 8 (7M8) 2:35 Effective 2026-03-07 through 2026-04-04
Sun 05:20 Seattle-Tacoma (SEA) 08:55 Denver (DEN) Southwest Airlines WN 4697 Non-stop Boeing 737 MAX 8 (7M8) 2:35 Effective 2026-08-09 through 2026-09-27
Tue,Wed 06:40 Seattle-Tacoma (SEA) 10:15 Denver (DEN) Southwest Airlines WN 4697 Non-stop Boeing 737-800 (73H) 2:35 Effective 2026-08-04 through 2026-09-30
Sat 06:50 Seattle-Tacoma (SEA) 10:25 Denver (DEN) Southwest Airlines WN 4697 Non-stop Boeing 737-700 (Scimitar Winglets) 2:35 Effective 2026-08-08 through 2026-09-26
Mon,Thu,Fri 15:45 Seattle-Tacoma (SEA) 19:30 Denver (DEN) Southwest Airlines WN 4697 Non-stop Boeing 737-700 (Scimitar Winglets) 2:45 Effective 2026-08-06 through 2026-09-28
Sun 16:45 Seattle-Tacoma (SEA) 20:25 Denver (DEN) Southwest Airlines WN 4831 Non-stop Boeing 737 MAX 8 (7M8) 2:40 Effective 2026-04-12 through 2026-05-17
Sun 16:45 Seattle-Tacoma (SEA) 20:25 Denver (DEN) Southwest Airlines WN 4831 Non-stop Boeing 737 MAX 8 (7M8) 2:40 Operates only on 2026-05-31
Sun 20:10 Seattle-Tacoma (SEA) 23:55 Denver (DEN) Southwest Airlines WN 4837 Non-stop Boeing 737 MAX 8 (7M8) 2:45 Effective 2026-08-09 through 2026-09-27
Mon,Thu,Fri 19:20 Seattle-Tacoma (SEA) 22:55 Denver (DEN) Southwest Airlines WN 4845 Non-stop Boeing 737-800 (73H) 2:35 Effective 2026-06-04 through 2026-08-03
Sat 19:35 Seattle-Tacoma (SEA) 23:10 Denver (DEN) Southwest Airlines WN 4845 Non-stop Boeing 737-800 (73H) 2:35 Effective 2026-06-06 through 2026-08-01
Sun 20:05 Seattle-Tacoma (SEA) 23:40 Denver (DEN) Southwest Airlines WN 4845 Non-stop Boeing 737 MAX 8 (7M8) 2:35 Effective 2026-06-07 through 2026-08-02
Tue,Wed 07:35 Seattle-Tacoma (SEA) 11:15 Denver (DEN) Southwest Airlines WN 4920 Non-stop Boeing 737-800 (73H) 2:40 Effective 2026-06-09 through 2026-07-29
Non-Direct Flights:
Mon,Thu,Fri 07:50 Seattle-Tacoma (SEA) 14:05 Denver (DEN) Southwest Airlines WN 1416 1-stop Boeing 737 MAX 8 (7M8) 5:15 Effective 2026-03-05 through 2026-04-06
Daily 08:35 Seattle-Tacoma (SEA) 16:28 Denver (DEN) United Airlines UA 2121 1-stop Airbus A320 (320) 6:53 Effective 2026-08-11 through 2026-10-24
Daily 08:42 Seattle-Tacoma (SEA) 16:28 Denver (DEN) United Airlines UA 2121 1-stop Airbus A320 (320) 6:46 Effective 2026-04-30 through 2026-05-20
Daily 09:02 Seattle-Tacoma (SEA) 16:28 Denver (DEN) United Airlines UA 2121 1-stop Airbus A320 (320) 6:26 Effective 2026-03-29 through 2026-04-29
Daily 09:02 Seattle-Tacoma (SEA) 16:28 Denver (DEN) United Airlines UA 2121 1-stop Airbus A320 (320) 6:26 Effective 2026-05-21 through 2026-08-10
Daily 09:02 Seattle-Tacoma (SEA) 16:28 Denver (DEN) United Airlines UA 2121 1-stop Airbus A320 (320) 6:26 Effective from 2026-10-25
Sun 07:00 Seattle-Tacoma (SEA) 13:00 Denver (DEN) Southwest Airlines WN 2650 1-stop Boeing 737-700 (Scimitar Winglets) 5:00 Operates only on 2026-05-24
Sat 06:40 Seattle-Tacoma (SEA) 12:50 Denver (DEN) Southwest Airlines WN 3936 1-stop Boeing 737-800 (73H) 5:10 Effective 2026-04-11 through 2026-05-30
Mon,Tue,Thu-Sun 07:15 Seattle-Tacoma (SEA) 16:09 Denver (DEN) United Airlines UA 611 2-stop Airbus A320 (320) 7:54 Effective 2026-02-12 through 2026-03-03
Wed 07:15 Seattle-Tacoma (SEA) 16:09 Denver (DEN) United Airlines UA 611 2-stop Airbus A320 (320) 7:54 Effective 2026-02-18 through 2026-03-04
Daily 06:50 Seattle-Tacoma (SEA) 23:01 Denver (DEN) United Airlines UA 1900 2-stop Boeing 737 MAX 8 (7M8) 15:11 Effective 2026-05-21 through 2026-08-17
Direct Codeshare Flights:
Fri 14:49 Seattle-Tacoma (SEA) 18:32 Denver (DEN) Copa Airlines CM 1286 Non-stop Boeing 737-800 (738) 2:43 Operates only on 2026-02-13 Codeshare flight, operated by United Airlines.(UA 399)
Wed,Sun 14:55 Seattle-Tacoma (SEA) 18:38 Denver (DEN) Copa Airlines CM 1286 Non-stop Boeing 737-900 (739) 2:43 Effective 2026-02-15 through 2026-03-04 Codeshare flight, operated by United Airlines.(UA 399)
Thu 15:16 Seattle-Tacoma (SEA) 18:59 Denver (DEN) Copa Airlines CM 1286 Non-stop Boeing 737-900 (739) 2:43 Effective 2026-02-12 through 2026-02-19 Codeshare flight, operated by United Airlines.(UA 399)
Mon 15:16 Seattle-Tacoma (SEA) 18:59 Denver (DEN) Copa Airlines CM 1286 Non-stop Boeing 737 MAX 9 (7M9) 2:43 Operates only on 2026-02-16 Codeshare flight, operated by United Airlines.(UA 399)
Mon,Tue 15:16 Seattle-Tacoma (SEA) 18:59 Denver (DEN) Copa Airlines CM 1286 Non-stop Boeing 737-800 (738) 2:43 Effective 2026-02-17 through 2026-03-03 Codeshare flight, operated by United Airlines.(UA 399)
Thu,Fri 15:16 Seattle-Tacoma (SEA) 18:59 Denver (DEN) Copa Airlines CM 1286 Non-stop Boeing 737-900 (739) 2:43 Effective 2026-02-20 through 2026-02-27 Codeshare flight, operated by United Airlines.(UA 399)
Sat 15:25 Seattle-Tacoma (SEA) 19:12 Denver (DEN) Copa Airlines CM 1286 Non-stop Airbus A320 (320) 2:47 Effective 2026-02-14 through 2026-02-28 Codeshare flight, operated by United Airlines.(UA 399)
Mon-Fri,Sun 15:30 Seattle-Tacoma (SEA) 19:16 Denver (DEN) Copa Airlines CM 1286 Non-stop Boeing 737-900 (739) 2:46 Effective 2026-01-06 through 2026-02-06 Codeshare flight, operated by United Airlines.(UA 757)
Sat 15:30 Seattle-Tacoma (SEA) 19:16 Denver (DEN) Copa Airlines CM 1286 Non-stop Boeing 737-800 (738) 2:46 Effective 2026-01-10 through 2026-01-31 Codeshare flight, operated by United Airlines.(UA 757)
Mon-Wed,Sat,Sun 15:30 Seattle-Tacoma (SEA) 19:16 Denver (DEN) Copa Airlines CM 1286 Non-stop Boeing 737-900 (739) 2:46 Effective 2026-02-07 through 2026-02-11 Codeshare flight, operated by United Airlines.(UA 757)
Mon,Tue,Thu-Sun 15:30 Seattle-Tacoma (SEA) 19:15 Denver (DEN) Copa Airlines CM 1286 Non-stop Boeing 737-800 (738) 2:45 Effective 2026-03-05 through 2026-03-17 Codeshare flight, operated by United Airlines.(UA 2860)
Wed 15:30 Seattle-Tacoma (SEA) 19:16 Denver (DEN) Copa Airlines CM 1286 Non-stop Airbus A319 (319) 2:46 Operates only on 2026-03-11 Codeshare flight, operated by United Airlines.(UA 2860)
Daily 15:30 Seattle-Tacoma (SEA) 19:15 Denver (DEN) Copa Airlines CM 1286 Non-stop Boeing 737-800 (738) 2:45 Effective 2026-03-18 through 2026-03-28 Codeshare flight, operated by United Airlines.(UA 2860)
Daily 15:44 Seattle-Tacoma (SEA) 19:34 Denver (DEN) Copa Airlines CM 1286 Non-stop Boeing 737 MAX 9 (7M9) 2:50 Effective 2026-03-29 through 2026-04-13 Codeshare flight, operated by United Airlines.(UA 757)
Mon,Wed-Sun 15:44 Seattle-Tacoma (SEA) 19:34 Denver (DEN) Copa Airlines CM 1286 Non-stop Boeing 737 MAX 9 (7M9) 2:50 Effective 2026-04-15 through 2026-04-29 Codeshare flight, operated by United Airlines.(UA 757)
Mon-Thu 15:50 Seattle-Tacoma (SEA) 19:37 Denver (DEN) Copa Airlines CM 1286 Non-stop Airbus A320 (320) 2:47 Valid until 2026-01-05 Codeshare flight, operated by United Airlines.(UA 757)
Fri-Sun 15:50 Seattle-Tacoma (SEA) 19:37 Denver (DEN) Copa Airlines CM 1286 Non-stop Airbus A319 (319) 2:47 Valid until 2026-01-04 Codeshare flight, operated by United Airlines.(UA 757)
Mon,Wed-Sun 15:51 Seattle-Tacoma (SEA) 19:35 Denver (DEN) Copa Airlines CM 1286 Non-stop Boeing 737-800 (738) 2:44 Effective from 2026-04-30 Codeshare flight, operated by United Airlines.(UA 757)
Wed 19:40 Seattle-Tacoma (SEA) 23:28 Denver (DEN) Air France AF 2073 Non-stop Airbus A220-300 (223) 2:48 Effective from 2026-10-28 Codeshare flight, operated by Delta Air Lines.(DL 2851)
Mon-Fri,Sun 19:35 Seattle-Tacoma (SEA) 23:23 Denver (DEN) Virgin Atlantic VS 2102 Non-stop Airbus A220-300 (223) 2:48 Valid until 2026-01-04 Codeshare flight, operated by Delta Air Lines.(DL 2851)
Sat 19:35 Seattle-Tacoma (SEA) 23:23 Denver (DEN) Virgin Atlantic VS 2102 Non-stop Airbus A220-100 (221) 2:48 Operates only on 2026-01-03 Codeshare flight, operated by Delta Air Lines.(DL 2851)
Daily 19:40 Seattle-Tacoma (SEA) 23:25 Denver (DEN) Virgin Atlantic VS 2102 Non-stop Airbus A220-300 (223) 2:45 Effective 2026-01-05 through 2026-03-07 Codeshare flight, operated by Delta Air Lines.(DL 2851)
Daily 19:40 Seattle-Tacoma (SEA) 23:30 Denver (DEN) Virgin Atlantic VS 2102 Non-stop Airbus A220-300 (223) 2:50 Effective 2026-04-13 through 2026-10-05 Codeshare flight, operated by Delta Air Lines.(DL 2851)
Daily 19:40 Seattle-Tacoma (SEA) 23:28 Denver (DEN) Virgin Atlantic VS 2102 Non-stop Airbus A220-300 (223) 2:48 Effective from 2026-10-06 Codeshare flight, operated by Delta Air Lines.(DL 2851)
Daily 19:45 Seattle-Tacoma (SEA) 23:30 Denver (DEN) Virgin Atlantic VS 2102 Non-stop Airbus A220-300 (223) 2:45 Effective 2026-03-08 through 2026-03-14 Codeshare flight, operated by Delta Air Lines.(DL 2851)
Daily 19:45 Seattle-Tacoma (SEA) 23:31 Denver (DEN) Virgin Atlantic VS 2102 Non-stop Airbus A220-300 (223) 2:46 Effective 2026-03-15 through 2026-04-12 Codeshare flight, operated by Delta Air Lines.(DL 2851)

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Parallax here SEA-DEN

1 2 3 4 5 6 7 8 9 10 ... 14 15 16

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.

Return (DEN-SEA) flights

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

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FLIGHT SCHEDULE

Direct Flights:

Southwest Airlines WN4660

10:30

Seattle-Tacoma (SEA)

14:10

Denver (DEN)

Effective 2026-03-08 through 2026-04-05

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:40, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN4660

11:10

Seattle-Tacoma (SEA)

14:45

Denver (DEN)

Effective 2026-03-07 through 2026-04-04

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:35, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4697

05:20

Seattle-Tacoma (SEA)

08:55

Denver (DEN)

Effective 2026-08-09 through 2026-09-27

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:35, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4697

06:40

Seattle-Tacoma (SEA)

10:15

Denver (DEN)

Effective 2026-08-04 through 2026-09-30

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:35, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN4697

06:50

Seattle-Tacoma (SEA)

10:25

Denver (DEN)

Effective 2026-08-08 through 2026-09-26

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:35, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4697

15:45

Seattle-Tacoma (SEA)

19:30

Denver (DEN)

Effective 2026-08-06 through 2026-09-28

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 2:45, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4831

16:45

Seattle-Tacoma (SEA)

20:25

Denver (DEN)

Effective 2026-04-12 through 2026-05-17

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:40, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4831

16:45

Seattle-Tacoma (SEA)

20:25

Denver (DEN)

Operates only on 2026-05-31

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:40, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4837

20:10

Seattle-Tacoma (SEA)

23:55

Denver (DEN)

Effective 2026-08-09 through 2026-09-27

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:45, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4845

19:20

Seattle-Tacoma (SEA)

22:55

Denver (DEN)

Effective 2026-06-04 through 2026-08-03

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 2:35, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN4845

19:35

Seattle-Tacoma (SEA)

23:10

Denver (DEN)

Effective 2026-06-06 through 2026-08-01

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:35, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN4845

20:05

Seattle-Tacoma (SEA)

23:40

Denver (DEN)

Effective 2026-06-07 through 2026-08-02

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:35, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4920

07:35

Seattle-Tacoma (SEA)

11:15

Denver (DEN)

Effective 2026-06-09 through 2026-07-29

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:40, non-stop
Boeing 737-800 (73H)

Non-Direct Flights:

Southwest Airlines WN1416

07:50

Seattle-Tacoma (SEA)

14:05

Denver (DEN)

Effective 2026-03-05 through 2026-04-06

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 5:15, 1-stop
Boeing 737 MAX 8 (7M8)

Non-Direct Flights:

United Airlines UA2121

08:35

Seattle-Tacoma (SEA)

16:28

Denver (DEN)

Effective 2026-08-11 through 2026-10-24

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 6:53, 1-stop
Airbus A320 (320)

Non-Direct Flights:

United Airlines UA2121

08:42

Seattle-Tacoma (SEA)

16:28

Denver (DEN)

Effective 2026-04-30 through 2026-05-20

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 6:46, 1-stop
Airbus A320 (320)

Non-Direct Flights:

United Airlines UA2121

09:02

Seattle-Tacoma (SEA)

16:28

Denver (DEN)

Effective 2026-03-29 through 2026-04-29

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 6:26, 1-stop
Airbus A320 (320)

Non-Direct Flights:

United Airlines UA2121

09:02

Seattle-Tacoma (SEA)

16:28

Denver (DEN)

Effective 2026-05-21 through 2026-08-10

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 6:26, 1-stop
Airbus A320 (320)

Non-Direct Flights:

United Airlines UA2121

09:02

Seattle-Tacoma (SEA)

16:28

Denver (DEN)

Effective from 2026-10-25

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 6:26, 1-stop
Airbus A320 (320)

Non-Direct Flights:

Southwest Airlines WN2650

07:00

Seattle-Tacoma (SEA)

13:00

Denver (DEN)

Operates only on 2026-05-24

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 5:00, 1-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN3936

06:40

Seattle-Tacoma (SEA)

12:50

Denver (DEN)

Effective 2026-04-11 through 2026-05-30

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 5:10, 1-stop
Boeing 737-800 (73H)

Non-Direct Flights:

United Airlines UA611

07:15

Seattle-Tacoma (SEA)

16:09

Denver (DEN)

Effective 2026-02-12 through 2026-03-03

Mon

Tue

Wed
-

Thu

Fri

Sat

Sun

Duration: 7:54, 2-stop
Airbus A320 (320)

Non-Direct Flights:

United Airlines UA611

07:15

Seattle-Tacoma (SEA)

16:09

Denver (DEN)

Effective 2026-02-18 through 2026-03-04

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 7:54, 2-stop
Airbus A320 (320)

Non-Direct Flights:

United Airlines UA1900

06:50

Seattle-Tacoma (SEA)

23:01

Denver (DEN)

Effective 2026-05-21 through 2026-08-17

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 15:11, 2-stop
Boeing 737 MAX 8 (7M8)

Direct Codeshare Flights:

Copa Airlines CM1286

14:49

Seattle-Tacoma (SEA)

18:32

Denver (DEN)

Operates only on 2026-02-13

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 399)

Duration: 2:43, non-stop
Boeing 737-800 (738)

Direct Codeshare Flights:

Copa Airlines CM1286

14:55

Seattle-Tacoma (SEA)

18:38

Denver (DEN)

Effective 2026-02-15 through 2026-03-04

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun

Codeshare flight, operated by United Airlines. (UA 399)

Duration: 2:43, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Copa Airlines CM1286

15:16

Seattle-Tacoma (SEA)

18:59

Denver (DEN)

Effective 2026-02-12 through 2026-02-19

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 399)

Duration: 2:43, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Copa Airlines CM1286

15:16

Seattle-Tacoma (SEA)

18:59

Denver (DEN)

Operates only on 2026-02-16

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 399)

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

Direct Codeshare Flights:

Copa Airlines CM1286

15:16

Seattle-Tacoma (SEA)

18:59

Denver (DEN)

Effective 2026-02-17 through 2026-03-03

Mon

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 399)

Duration: 2:43, non-stop
Boeing 737-800 (738)

Direct Codeshare Flights:

Copa Airlines CM1286

15:16

Seattle-Tacoma (SEA)

18:59

Denver (DEN)

Effective 2026-02-20 through 2026-02-27

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 399)

Duration: 2:43, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Copa Airlines CM1286

15:25

Seattle-Tacoma (SEA)

19:12

Denver (DEN)

Effective 2026-02-14 through 2026-02-28

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 399)

Duration: 2:47, non-stop
Airbus A320 (320)

Direct Codeshare Flights:

Copa Airlines CM1286

15:30

Seattle-Tacoma (SEA)

19:16

Denver (DEN)

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

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Codeshare flight, operated by United Airlines. (UA 757)

Duration: 2:46, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Copa Airlines CM1286

15:30

Seattle-Tacoma (SEA)

19:16

Denver (DEN)

Effective 2026-01-10 through 2026-01-31

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 757)

Duration: 2:46, non-stop
Boeing 737-800 (738)

Direct Codeshare Flights:

Copa Airlines CM1286

15:30

Seattle-Tacoma (SEA)

19:16

Denver (DEN)

Effective 2026-02-07 through 2026-02-11

Mon

Tue

Wed

Thu
-

Fri
-

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 757)

Duration: 2:46, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Copa Airlines CM1286

15:30

Seattle-Tacoma (SEA)

19:15

Denver (DEN)

Effective 2026-03-05 through 2026-03-17

Mon

Tue

Wed
-

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 2860)

Duration: 2:45, non-stop
Boeing 737-800 (738)

Direct Codeshare Flights:

Copa Airlines CM1286

15:30

Seattle-Tacoma (SEA)

19:16

Denver (DEN)

Operates only on 2026-03-11

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 2860)

Duration: 2:46, non-stop
Airbus A319 (319)

Direct Codeshare Flights:

Copa Airlines CM1286

15:30

Seattle-Tacoma (SEA)

19:15

Denver (DEN)

Effective 2026-03-18 through 2026-03-28

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 2860)

Duration: 2:45, non-stop
Boeing 737-800 (738)

Direct Codeshare Flights:

Copa Airlines CM1286

15:44

Seattle-Tacoma (SEA)

19:34

Denver (DEN)

Effective 2026-03-29 through 2026-04-13

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 757)

Duration: 2:50, non-stop
Boeing 737 MAX 9 (7M9)

Direct Codeshare Flights:

Copa Airlines CM1286

15:44

Seattle-Tacoma (SEA)

19:34

Denver (DEN)

Effective 2026-04-15 through 2026-04-29

Mon

Tue
-

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 757)

Duration: 2:50, non-stop
Boeing 737 MAX 9 (7M9)

Direct Codeshare Flights:

Copa Airlines CM1286

15:50

Seattle-Tacoma (SEA)

19:37

Denver (DEN)

Valid until 2026-01-05

Mon

Tue

Wed

Thu

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 757)

Duration: 2:47, non-stop
Airbus A320 (320)

Direct Codeshare Flights:

Copa Airlines CM1286

15:50

Seattle-Tacoma (SEA)

19:37

Denver (DEN)

Valid until 2026-01-04

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 757)

Duration: 2:47, non-stop
Airbus A319 (319)

Direct Codeshare Flights:

Copa Airlines CM1286

15:51

Seattle-Tacoma (SEA)

19:35

Denver (DEN)

Effective from 2026-04-30

Mon

Tue
-

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 757)

Duration: 2:44, non-stop
Boeing 737-800 (738)

Direct Codeshare Flights:

Air France AF2073

19:40

Seattle-Tacoma (SEA)

23:28

Denver (DEN)

Effective from 2026-10-28

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 2851)

Duration: 2:48, non-stop
Airbus A220-300 (223)

Direct Codeshare Flights:

Virgin Atlantic VS2102

19:35

Seattle-Tacoma (SEA)

23:23

Denver (DEN)

Valid until 2026-01-04

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Codeshare flight, operated by Delta Air Lines. (DL 2851)

Duration: 2:48, non-stop
Airbus A220-300 (223)

Direct Codeshare Flights:

Virgin Atlantic VS2102

19:35

Seattle-Tacoma (SEA)

23:23

Denver (DEN)

Operates only on 2026-01-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 2851)

Duration: 2:48, non-stop
Airbus A220-100 (221)

Direct Codeshare Flights:

Virgin Atlantic VS2102

19:40

Seattle-Tacoma (SEA)

23:25

Denver (DEN)

Effective 2026-01-05 through 2026-03-07

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 2851)

Duration: 2:45, non-stop
Airbus A220-300 (223)

Direct Codeshare Flights:

Virgin Atlantic VS2102

19:40

Seattle-Tacoma (SEA)

23:30

Denver (DEN)

Effective 2026-04-13 through 2026-10-05

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 2851)

Duration: 2:50, non-stop
Airbus A220-300 (223)

Direct Codeshare Flights:

Virgin Atlantic VS2102

19:40

Seattle-Tacoma (SEA)

23:28

Denver (DEN)

Effective from 2026-10-06

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 2851)

Duration: 2:48, non-stop
Airbus A220-300 (223)

Direct Codeshare Flights:

Virgin Atlantic VS2102

19:45

Seattle-Tacoma (SEA)

23:30

Denver (DEN)

Effective 2026-03-08 through 2026-03-14

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 2851)

Duration: 2:45, non-stop
Airbus A220-300 (223)

Direct Codeshare Flights:

Virgin Atlantic VS2102

19:45

Seattle-Tacoma (SEA)

23:31

Denver (DEN)

Effective 2026-03-15 through 2026-04-12

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 2851)

Duration: 2:46, non-stop
Airbus A220-300 (223)

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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 2:30 and 3:02.

Return (DEN-SEA) flights

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