All airlines flying from Phoenix Sky Harbor (PHX) to Seattle-Tacoma (SEA).

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FLIGHT SCHEDULE
Direct Flights:
Mon,Tue,Sat 07:00 Phoenix Sky Harbor (PHX) 3 09:18 Seattle-Tacoma (SEA) Alaska Airlines AS 605 Non-stop Boeing 737 MAX 9 (7M9) 3:18 Effective 2026-01-17 through 2026-01-20
Thu-Sun 07:00 Phoenix Sky Harbor (PHX) 3 09:18 Seattle-Tacoma (SEA) Alaska Airlines AS 605 Non-stop Boeing 737 (73J) 3:18 Effective 2026-01-24 through 2026-02-08
Mon,Tue 07:00 Phoenix Sky Harbor (PHX) 3 09:18 Seattle-Tacoma (SEA) Alaska Airlines AS 605 Non-stop Boeing 737 MAX 9 (7M9) 3:18 Effective 2026-01-26 through 2026-02-09
Tue 07:00 Phoenix Sky Harbor (PHX) 3 09:18 Seattle-Tacoma (SEA) Alaska Airlines AS 605 Non-stop Boeing 737 (73J) 3:18 Operates only on 2026-02-10
Wed 20:05 Phoenix Sky Harbor (PHX) 3 23:05 Seattle-Tacoma (SEA) Alaska Airlines AS 609 Non-stop Boeing 737 (73J) 3:00 Operates only on 2026-03-18
Daily 20:05 Phoenix Sky Harbor (PHX) 3 23:16 Seattle-Tacoma (SEA) Alaska Airlines AS 609 Non-stop Boeing 737 (73J) 3:11 Effective 2026-03-19 through 2026-04-21
Thu 20:56 Phoenix Sky Harbor (PHX) 3 23:12 Seattle-Tacoma (SEA) Alaska Airlines AS 609 Non-stop Boeing 737 MAX 9 (7M9) 3:16 Operates only on 2026-02-12
Mon-Thu,Sun 20:56 Phoenix Sky Harbor (PHX) 3 23:12 Seattle-Tacoma (SEA) Alaska Airlines AS 609 Non-stop Boeing 737 (73J) 3:16 Effective 2026-02-15 through 2026-03-05
Daily 21:15 Phoenix Sky Harbor (PHX) 3 00:21 Seattle-Tacoma (SEA) Alaska Airlines AS 609 Non-stop Boeing 737 (73J) 3:06 Effective from 2026-06-10 The flight arrives 1 day after departure.
Fri 22:37 Phoenix Sky Harbor (PHX) 3 00:53 Seattle-Tacoma (SEA) Alaska Airlines AS 609 Non-stop Boeing 737-800 (73H) 3:16 Operates only on 2026-01-02 The flight arrives 1 day after departure.
Mon,Sun 22:37 Phoenix Sky Harbor (PHX) 3 00:53 Seattle-Tacoma (SEA) Alaska Airlines AS 609 Non-stop Boeing 737 (73J) 3:16 Effective 2026-01-04 through 2026-01-05 The flight arrives 1 day after departure.
Tue,Wed 18:11 Phoenix Sky Harbor (PHX) 3 21:27 Seattle-Tacoma (SEA) Alaska Airlines AS 611 Non-stop Boeing 737 (73J) 3:16 Effective 2026-03-10 through 2026-03-17
Mon,Fri-Sun 18:18 Phoenix Sky Harbor (PHX) 3 21:34 Seattle-Tacoma (SEA) Alaska Airlines AS 611 Non-stop Boeing 737 (73J) 3:16 Effective 2026-03-08 through 2026-03-16
Thu 18:18 Phoenix Sky Harbor (PHX) 3 21:34 Seattle-Tacoma (SEA) Alaska Airlines AS 611 Non-stop Boeing 737-800 (73H) 3:16 Operates only on 2026-03-12
Wed 18:45 Phoenix Sky Harbor (PHX) 3 21:45 Seattle-Tacoma (SEA) Alaska Airlines AS 611 Non-stop Boeing 737 (73J) 3:00 Operates only on 2026-03-18
Daily 18:45 Phoenix Sky Harbor (PHX) 3 21:56 Seattle-Tacoma (SEA) Alaska Airlines AS 611 Non-stop Boeing 737 (73J) 3:11 Effective 2026-03-19 through 2026-05-12
Daily 18:54 Phoenix Sky Harbor (PHX) 3 22:06 Seattle-Tacoma (SEA) Alaska Airlines AS 611 Non-stop Boeing 737 (73J) 3:12 Effective from 2026-06-10
Daily 19:10 Phoenix Sky Harbor (PHX) 3 21:30 Seattle-Tacoma (SEA) Alaska Airlines AS 611 Non-stop Boeing 737 (73J) 3:20 Valid until 2026-01-05
Tue 19:10 Phoenix Sky Harbor (PHX) 3 21:30 Seattle-Tacoma (SEA) Alaska Airlines AS 611 Non-stop Boeing 737 MAX 9 (7M9) 3:20 Operates only on 2026-01-06
Tue,Wed 19:11 Phoenix Sky Harbor (PHX) 3 21:27 Seattle-Tacoma (SEA) Alaska Airlines AS 611 Non-stop Boeing 737 (73J) 3:16 Effective 2026-02-17 through 2026-03-04
Mon,Thu-Sun 19:18 Phoenix Sky Harbor (PHX) 3 21:34 Seattle-Tacoma (SEA) Alaska Airlines AS 611 Non-stop Boeing 737 (73J) 3:16 Effective 2026-02-12 through 2026-03-07
Mon,Wed,Thu,Sun 19:35 Phoenix Sky Harbor (PHX) 3 21:53 Seattle-Tacoma (SEA) Alaska Airlines AS 611 Non-stop Boeing 737 (73J) 3:18 Effective 2026-01-07 through 2026-01-26
Tue 19:35 Phoenix Sky Harbor (PHX) 3 21:53 Seattle-Tacoma (SEA) Alaska Airlines AS 611 Non-stop Boeing 737 MAX 9 (7M9) 3:18 Effective 2026-01-13 through 2026-01-20
Mon-Wed,Sun 19:35 Phoenix Sky Harbor (PHX) 3 21:53 Seattle-Tacoma (SEA) Alaska Airlines AS 611 Non-stop Boeing 737 (73J) 3:18 Effective 2026-01-27 through 2026-02-02
Tue,Thu 19:35 Phoenix Sky Harbor (PHX) 3 21:53 Seattle-Tacoma (SEA) Alaska Airlines AS 611 Non-stop Boeing 737 MAX 9 (7M9) 3:18 Effective 2026-01-29 through 2026-02-03
Mon-Thu,Sun 19:35 Phoenix Sky Harbor (PHX) 3 21:53 Seattle-Tacoma (SEA) Alaska Airlines AS 611 Non-stop Boeing 737 (73J) 3:18 Effective 2026-02-04 through 2026-02-10
Wed 19:35 Phoenix Sky Harbor (PHX) 3 21:53 Seattle-Tacoma (SEA) Alaska Airlines AS 611 Non-stop Boeing 737 MAX 9 (7M9) 3:18 Operates only on 2026-02-11
Daily 17:24 Phoenix Sky Harbor (PHX) 3 20:35 Seattle-Tacoma (SEA) Alaska Airlines AS 620 Non-stop Boeing 737 (73J) 3:11 Effective 2026-05-13 through 2026-06-09
Wed 09:45 Phoenix Sky Harbor (PHX) 3 12:45 Seattle-Tacoma (SEA) Alaska Airlines AS 637 Non-stop Boeing 737 (73J) 3:00 Operates only on 2026-03-18
Daily 09:45 Phoenix Sky Harbor (PHX) 3 12:54 Seattle-Tacoma (SEA) Alaska Airlines AS 637 Non-stop Boeing 737 (73J) 3:09 Effective 2026-03-19 through 2026-05-12
Mon,Tue,Thu-Sun 09:51 Phoenix Sky Harbor (PHX) 3 13:12 Seattle-Tacoma (SEA) Alaska Airlines AS 637 Non-stop Boeing 737 (73J) 3:21 Effective 2026-03-08 through 2026-03-16
Wed 09:51 Phoenix Sky Harbor (PHX) 3 13:12 Seattle-Tacoma (SEA) Alaska Airlines AS 637 Non-stop Boeing 737-800 (73H) 3:21 Operates only on 2026-03-11
Tue 09:51 Phoenix Sky Harbor (PHX) 3 13:12 Seattle-Tacoma (SEA) Alaska Airlines AS 637 Non-stop Boeing 737 MAX 9 (7M9) 3:21 Operates only on 2026-03-17
Daily 10:46 Phoenix Sky Harbor (PHX) 3 13:54 Seattle-Tacoma (SEA) Alaska Airlines AS 637 Non-stop Boeing 737 (73J) 3:08 Effective from 2026-06-10
Daily 10:51 Phoenix Sky Harbor (PHX) 3 13:09 Seattle-Tacoma (SEA) Alaska Airlines AS 637 Non-stop Boeing 737 (73J) 3:18 Effective 2026-02-12 through 2026-03-05
Fri 10:51 Phoenix Sky Harbor (PHX) 3 13:09 Seattle-Tacoma (SEA) Alaska Airlines AS 637 Non-stop Boeing 737 MAX 9 (7M9) 3:18 Operates only on 2026-03-06
Sat 10:51 Phoenix Sky Harbor (PHX) 3 13:09 Seattle-Tacoma (SEA) Alaska Airlines AS 637 Non-stop Boeing 737 (73J) 3:18 Operates only on 2026-03-07
Wed,Thu,Sat 11:00 Phoenix Sky Harbor (PHX) 3 13:19 Seattle-Tacoma (SEA) Alaska Airlines AS 637 Non-stop Boeing 737 (73J) 3:19 Effective 2026-01-07 through 2026-01-14
Mon,Tue,Fri,Sun 11:00 Phoenix Sky Harbor (PHX) 3 13:19 Seattle-Tacoma (SEA) Alaska Airlines AS 637 Non-stop Boeing 737 MAX 9 (7M9) 3:19 Effective 2026-01-09 through 2026-01-13
Wed-Fri 11:00 Phoenix Sky Harbor (PHX) 3 13:19 Seattle-Tacoma (SEA) Alaska Airlines AS 637 Non-stop Boeing 737-800 (73H) 3:19 Effective 2026-01-15 through 2026-01-22
Sat,Sun 11:00 Phoenix Sky Harbor (PHX) 3 13:19 Seattle-Tacoma (SEA) Alaska Airlines AS 637 Non-stop Boeing 737 (73J) 3:19 Effective 2026-01-17 through 2026-01-18
Mon,Tue,Fri,Sat 11:00 Phoenix Sky Harbor (PHX) 3 13:19 Seattle-Tacoma (SEA) Alaska Airlines AS 637 Non-stop Boeing 737 MAX 9 (7M9) 3:19 Effective 2026-01-19 through 2026-01-26
Tue,Wed,Sat,Sun 11:00 Phoenix Sky Harbor (PHX) 3 13:19 Seattle-Tacoma (SEA) Alaska Airlines AS 637 Non-stop Boeing 737 (73J) 3:19 Effective 2026-01-25 through 2026-02-08
Thu,Fri 11:00 Phoenix Sky Harbor (PHX) 3 13:19 Seattle-Tacoma (SEA) Alaska Airlines AS 637 Non-stop Boeing 737-800 (73H) 3:19 Effective 2026-01-29 through 2026-02-05
Mon,Fri 11:00 Phoenix Sky Harbor (PHX) 3 13:19 Seattle-Tacoma (SEA) Alaska Airlines AS 637 Non-stop Boeing 737 MAX 9 (7M9) 3:19 Effective 2026-02-02 through 2026-02-09
Tue 11:00 Phoenix Sky Harbor (PHX) 3 13:19 Seattle-Tacoma (SEA) Alaska Airlines AS 637 Non-stop Boeing 737 MAX 9 (7M9) 3:19 Operates only on 2026-02-10
Wed 11:00 Phoenix Sky Harbor (PHX) 3 13:19 Seattle-Tacoma (SEA) Alaska Airlines AS 637 Non-stop Boeing 737 (73J) 3:19 Operates only on 2026-02-11
Mon,Thu,Fri 11:24 Phoenix Sky Harbor (PHX) 3 13:49 Seattle-Tacoma (SEA) Alaska Airlines AS 637 Non-stop Boeing 737 (73J) 3:25 Valid until 2026-01-05
Sat,Sun 11:24 Phoenix Sky Harbor (PHX) 3 13:49 Seattle-Tacoma (SEA) Alaska Airlines AS 637 Non-stop Boeing 737-800 (73H) 3:25 Effective 2026-01-03 through 2026-01-04
Tue 11:24 Phoenix Sky Harbor (PHX) 3 13:49 Seattle-Tacoma (SEA) Alaska Airlines AS 637 Non-stop Boeing 737 (73J) 3:25 Operates only on 2026-01-06

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Parallax here PHX-SEA

1 2 3 4 5 6 ... 26 27 28

A domestic route departing from the Phoenix Sky Harbor airport (PHX) and arriving at Seattle-Tacoma airport (SEA).
The flight distance is 1106 miles, or 1781 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 2:55 and 3:35.

Return (SEA-PHX) flights

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All airlines flying from Phoenix Sky Harbor (PHX) to Seattle-Tacoma (SEA).

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FLIGHT SCHEDULE

Direct Flights:

Alaska Airlines AS605

07:00

Phoenix Sky Harbor (PHX) 3

09:18

Seattle-Tacoma (SEA)

Effective 2026-01-17 through 2026-01-20

Mon

Tue

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:18, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Alaska Airlines AS605

07:00

Phoenix Sky Harbor (PHX) 3

09:18

Seattle-Tacoma (SEA)

Effective 2026-01-24 through 2026-02-08

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat

Sun

Duration: 3:18, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS605

07:00

Phoenix Sky Harbor (PHX) 3

09:18

Seattle-Tacoma (SEA)

Effective 2026-01-26 through 2026-02-09

Mon

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:18, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Alaska Airlines AS605

07:00

Phoenix Sky Harbor (PHX) 3

09:18

Seattle-Tacoma (SEA)

Operates only on 2026-02-10

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:18, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS609

20:05

Phoenix Sky Harbor (PHX) 3

23:05

Seattle-Tacoma (SEA)

Operates only on 2026-03-18

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

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

Direct Flights:

Alaska Airlines AS609

20:05

Phoenix Sky Harbor (PHX) 3

23:16

Seattle-Tacoma (SEA)

Effective 2026-03-19 through 2026-04-21

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:11, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS609

20:56

Phoenix Sky Harbor (PHX) 3

23:12

Seattle-Tacoma (SEA)

Operates only on 2026-02-12

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 3:16, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Alaska Airlines AS609

20:56

Phoenix Sky Harbor (PHX) 3

23:12

Seattle-Tacoma (SEA)

Effective 2026-02-15 through 2026-03-05

Mon

Tue

Wed

Thu

Fri
-

Sat
-

Sun

Duration: 3:16, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS609

21:15

Phoenix Sky Harbor (PHX) 3

00:21(+1)

Seattle-Tacoma (SEA)

Effective from 2026-06-10

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:06, non-stop
Boeing 737 (73J)
The flight arrives 1 day after departure.

Direct Flights:

Alaska Airlines AS609

22:37

Phoenix Sky Harbor (PHX) 3

00:53(+1)

Seattle-Tacoma (SEA)

Operates only on 2026-01-02

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Duration: 3:16, non-stop
Boeing 737-800 (73H)
The flight arrives 1 day after departure.

Direct Flights:

Alaska Airlines AS609

22:37

Phoenix Sky Harbor (PHX) 3

00:53(+1)

Seattle-Tacoma (SEA)

Effective 2026-01-04 through 2026-01-05

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:16, non-stop
Boeing 737 (73J)
The flight arrives 1 day after departure.

Direct Flights:

Alaska Airlines AS611

18:11

Phoenix Sky Harbor (PHX) 3

21:27

Seattle-Tacoma (SEA)

Effective 2026-03-10 through 2026-03-17

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:16, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS611

18:18

Phoenix Sky Harbor (PHX) 3

21:34

Seattle-Tacoma (SEA)

Effective 2026-03-08 through 2026-03-16

Mon

Tue
-

Wed
-

Thu
-

Fri

Sat

Sun

Duration: 3:16, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS611

18:18

Phoenix Sky Harbor (PHX) 3

21:34

Seattle-Tacoma (SEA)

Operates only on 2026-03-12

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 3:16, non-stop
Boeing 737-800 (73H)

Direct Flights:

Alaska Airlines AS611

18:45

Phoenix Sky Harbor (PHX) 3

21:45

Seattle-Tacoma (SEA)

Operates only on 2026-03-18

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

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

Direct Flights:

Alaska Airlines AS611

18:45

Phoenix Sky Harbor (PHX) 3

21:56

Seattle-Tacoma (SEA)

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

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:11, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS611

18:54

Phoenix Sky Harbor (PHX) 3

22:06

Seattle-Tacoma (SEA)

Effective from 2026-06-10

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:12, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS611

19:10

Phoenix Sky Harbor (PHX) 3

21:30

Seattle-Tacoma (SEA)

Valid until 2026-01-05

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:20, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS611

19:10

Phoenix Sky Harbor (PHX) 3

21:30

Seattle-Tacoma (SEA)

Operates only on 2026-01-06

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:20, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Alaska Airlines AS611

19:11

Phoenix Sky Harbor (PHX) 3

21:27

Seattle-Tacoma (SEA)

Effective 2026-02-17 through 2026-03-04

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:16, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS611

19:18

Phoenix Sky Harbor (PHX) 3

21:34

Seattle-Tacoma (SEA)

Effective 2026-02-12 through 2026-03-07

Mon

Tue
-

Wed
-

Thu

Fri

Sat

Sun

Duration: 3:16, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS611

19:35

Phoenix Sky Harbor (PHX) 3

21:53

Seattle-Tacoma (SEA)

Effective 2026-01-07 through 2026-01-26

Mon

Tue
-

Wed

Thu

Fri
-

Sat
-

Sun

Duration: 3:18, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS611

19:35

Phoenix Sky Harbor (PHX) 3

21:53

Seattle-Tacoma (SEA)

Effective 2026-01-13 through 2026-01-20

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:18, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Alaska Airlines AS611

19:35

Phoenix Sky Harbor (PHX) 3

21:53

Seattle-Tacoma (SEA)

Effective 2026-01-27 through 2026-02-02

Mon

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:18, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS611

19:35

Phoenix Sky Harbor (PHX) 3

21:53

Seattle-Tacoma (SEA)

Effective 2026-01-29 through 2026-02-03

Mon
-

Tue

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 3:18, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Alaska Airlines AS611

19:35

Phoenix Sky Harbor (PHX) 3

21:53

Seattle-Tacoma (SEA)

Effective 2026-02-04 through 2026-02-10

Mon

Tue

Wed

Thu

Fri
-

Sat
-

Sun

Duration: 3:18, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS611

19:35

Phoenix Sky Harbor (PHX) 3

21:53

Seattle-Tacoma (SEA)

Operates only on 2026-02-11

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:18, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Alaska Airlines AS620

17:24

Phoenix Sky Harbor (PHX) 3

20:35

Seattle-Tacoma (SEA)

Effective 2026-05-13 through 2026-06-09

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:11, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS637

09:45

Phoenix Sky Harbor (PHX) 3

12:45

Seattle-Tacoma (SEA)

Operates only on 2026-03-18

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

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

Direct Flights:

Alaska Airlines AS637

09:45

Phoenix Sky Harbor (PHX) 3

12:54

Seattle-Tacoma (SEA)

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

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:09, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS637

09:51

Phoenix Sky Harbor (PHX) 3

13:12

Seattle-Tacoma (SEA)

Effective 2026-03-08 through 2026-03-16

Mon

Tue

Wed
-

Thu

Fri

Sat

Sun

Duration: 3:21, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS637

09:51

Phoenix Sky Harbor (PHX) 3

13:12

Seattle-Tacoma (SEA)

Operates only on 2026-03-11

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:21, non-stop
Boeing 737-800 (73H)

Direct Flights:

Alaska Airlines AS637

09:51

Phoenix Sky Harbor (PHX) 3

13:12

Seattle-Tacoma (SEA)

Operates only on 2026-03-17

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:21, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Alaska Airlines AS637

10:46

Phoenix Sky Harbor (PHX) 3

13:54

Seattle-Tacoma (SEA)

Effective from 2026-06-10

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:08, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS637

10:51

Phoenix Sky Harbor (PHX) 3

13:09

Seattle-Tacoma (SEA)

Effective 2026-02-12 through 2026-03-05

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:18, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS637

10:51

Phoenix Sky Harbor (PHX) 3

13:09

Seattle-Tacoma (SEA)

Operates only on 2026-03-06

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Duration: 3:18, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Alaska Airlines AS637

10:51

Phoenix Sky Harbor (PHX) 3

13:09

Seattle-Tacoma (SEA)

Operates only on 2026-03-07

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:18, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS637

11:00

Phoenix Sky Harbor (PHX) 3

13:19

Seattle-Tacoma (SEA)

Effective 2026-01-07 through 2026-01-14

Mon
-

Tue
-

Wed

Thu

Fri
-

Sat

Sun
-

Duration: 3:19, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS637

11:00

Phoenix Sky Harbor (PHX) 3

13:19

Seattle-Tacoma (SEA)

Effective 2026-01-09 through 2026-01-13

Mon

Tue

Wed
-

Thu
-

Fri

Sat
-

Sun

Duration: 3:19, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Alaska Airlines AS637

11:00

Phoenix Sky Harbor (PHX) 3

13:19

Seattle-Tacoma (SEA)

Effective 2026-01-15 through 2026-01-22

Mon
-

Tue
-

Wed

Thu

Fri

Sat
-

Sun
-

Duration: 3:19, non-stop
Boeing 737-800 (73H)

Direct Flights:

Alaska Airlines AS637

11:00

Phoenix Sky Harbor (PHX) 3

13:19

Seattle-Tacoma (SEA)

Effective 2026-01-17 through 2026-01-18

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun

Duration: 3:19, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS637

11:00

Phoenix Sky Harbor (PHX) 3

13:19

Seattle-Tacoma (SEA)

Effective 2026-01-19 through 2026-01-26

Mon

Tue

Wed
-

Thu
-

Fri

Sat

Sun
-

Duration: 3:19, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Alaska Airlines AS637

11:00

Phoenix Sky Harbor (PHX) 3

13:19

Seattle-Tacoma (SEA)

Effective 2026-01-25 through 2026-02-08

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat

Sun

Duration: 3:19, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS637

11:00

Phoenix Sky Harbor (PHX) 3

13:19

Seattle-Tacoma (SEA)

Effective 2026-01-29 through 2026-02-05

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 3:19, non-stop
Boeing 737-800 (73H)

Direct Flights:

Alaska Airlines AS637

11:00

Phoenix Sky Harbor (PHX) 3

13:19

Seattle-Tacoma (SEA)

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

Mon

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Duration: 3:19, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Alaska Airlines AS637

11:00

Phoenix Sky Harbor (PHX) 3

13:19

Seattle-Tacoma (SEA)

Operates only on 2026-02-10

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:19, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Alaska Airlines AS637

11:00

Phoenix Sky Harbor (PHX) 3

13:19

Seattle-Tacoma (SEA)

Operates only on 2026-02-11

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:19, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS637

11:24

Phoenix Sky Harbor (PHX) 3

13:49

Seattle-Tacoma (SEA)

Valid until 2026-01-05

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 3:25, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS637

11:24

Phoenix Sky Harbor (PHX) 3

13:49

Seattle-Tacoma (SEA)

Effective 2026-01-03 through 2026-01-04

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun

Duration: 3:25, non-stop
Boeing 737-800 (73H)

Direct Flights:

Alaska Airlines AS637

11:24

Phoenix Sky Harbor (PHX) 3

13:49

Seattle-Tacoma (SEA)

Operates only on 2026-01-06

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:25, non-stop
Boeing 737 (73J)

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Parallax here PHX-SEA

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A domestic route departing from the Phoenix Sky Harbor airport (PHX) and arriving at Seattle-Tacoma airport (SEA).
The flight distance is 1106 miles, or 1781 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 2:55 and 3:35.

Return (SEA-PHX) flights

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