Alaska Airlines flight AS 645: Phoenix Sky Harbor - Seattle-Tacoma

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FLIGHT SCHEDULE
Direct Flights:
Mon,Tue,Fri-Sun 07:00 Phoenix Sky Harbor (PHX) 3 09:19 Seattle-Tacoma (SEA) AS 645 Non-stop Boeing 737 (73J) 3:19 Valid until 2026-01-05
Wed,Thu 07:00 Phoenix Sky Harbor (PHX) 3 09:19 Seattle-Tacoma (SEA) AS 645 Non-stop Boeing 737-800 (73H) 3:19 Valid until 2026-01-01
Tue 07:00 Phoenix Sky Harbor (PHX) 3 09:19 Seattle-Tacoma (SEA) AS 645 Non-stop Boeing 737 MAX 9 (7M9) 3:19 Operates only on 2026-01-06
Daily 07:00 Phoenix Sky Harbor (PHX) 3 10:10 Seattle-Tacoma (SEA) AS 645 Non-stop Boeing 737 (73J) 3:10 Effective 2026-05-13 through 2026-06-09
Daily 07:05 Phoenix Sky Harbor (PHX) 3 10:10 Seattle-Tacoma (SEA) AS 645 Non-stop Boeing 737 (73J) 3:05 Effective from 2026-06-10
Tue-Sun 07:20 Phoenix Sky Harbor (PHX) 3 10:39 Seattle-Tacoma (SEA) AS 645 Non-stop Boeing 737 (73J) 3:19 Effective 2026-03-08 through 2026-03-15
Mon 07:20 Phoenix Sky Harbor (PHX) 3 10:39 Seattle-Tacoma (SEA) AS 645 Non-stop Boeing 737-800 (73H) 3:19 Operates only on 2026-03-09
Mon,Tue 07:20 Phoenix Sky Harbor (PHX) 3 10:39 Seattle-Tacoma (SEA) AS 645 Non-stop Boeing 737 (73J) 3:19 Effective 2026-03-16 through 2026-03-17
Mon-Thu 08:00 Phoenix Sky Harbor (PHX) 3 10:19 Seattle-Tacoma (SEA) AS 645 Non-stop Boeing 737 (73J) 3:19 Effective 2026-01-07 through 2026-01-13
Fri 08:00 Phoenix Sky Harbor (PHX) 3 10:19 Seattle-Tacoma (SEA) AS 645 Non-stop Boeing 737 MAX 9 (7M9) 3:19 Effective 2026-01-09 through 2026-01-16
Sun 08:00 Phoenix Sky Harbor (PHX) 3 10:19 Seattle-Tacoma (SEA) AS 645 Non-stop Boeing 737 MAX 8 (7M8) 3:19 Operates only on 2026-01-11
Wed,Sun 08:00 Phoenix Sky Harbor (PHX) 3 10:19 Seattle-Tacoma (SEA) AS 645 Non-stop Boeing 737-800 (73H) 3:19 Effective 2026-01-14 through 2026-01-21
Mon,Thu 08:00 Phoenix Sky Harbor (PHX) 3 10:19 Seattle-Tacoma (SEA) AS 645 Non-stop Boeing 737 (73J) 3:19 Effective 2026-01-15 through 2026-01-26
Tue,Fri,Sun 08:00 Phoenix Sky Harbor (PHX) 3 10:19 Seattle-Tacoma (SEA) AS 645 Non-stop Boeing 737 MAX 9 (7M9) 3:19 Effective 2026-01-20 through 2026-01-27
Wed,Sun 08:00 Phoenix Sky Harbor (PHX) 3 10:19 Seattle-Tacoma (SEA) AS 645 Non-stop Boeing 737-800 (73H) 3:19 Effective 2026-01-28 through 2026-02-11
Thu 08:00 Phoenix Sky Harbor (PHX) 3 10:19 Seattle-Tacoma (SEA) AS 645 Non-stop Boeing 737 MAX 9 (7M9) 3:19 Operates only on 2026-01-29
Mon,Tue,Thu,Fri 08:00 Phoenix Sky Harbor (PHX) 3 10:19 Seattle-Tacoma (SEA) AS 645 Non-stop Boeing 737 (73J) 3:19 Effective 2026-01-30 through 2026-02-05
Fri 08:00 Phoenix Sky Harbor (PHX) 3 10:19 Seattle-Tacoma (SEA) AS 645 Non-stop Boeing 737 MAX 9 (7M9) 3:19 Operates only on 2026-02-06
Mon,Tue 08:00 Phoenix Sky Harbor (PHX) 3 10:19 Seattle-Tacoma (SEA) AS 645 Non-stop Boeing 737 (73J) 3:19 Effective 2026-02-09 through 2026-02-10
Wed 08:00 Phoenix Sky Harbor (PHX) 3 10:59 Seattle-Tacoma (SEA) AS 645 Non-stop Boeing 737 (73J) 2:59 Operates only on 2026-03-18
Daily 08:00 Phoenix Sky Harbor (PHX) 3 11:10 Seattle-Tacoma (SEA) AS 645 Non-stop Boeing 737 (73J) 3:10 Effective 2026-03-19 through 2026-05-12
Daily 08:20 Phoenix Sky Harbor (PHX) 3 10:39 Seattle-Tacoma (SEA) AS 645 Non-stop Boeing 737 (73J) 3:19 Effective 2026-02-12 through 2026-02-19
Fri 08:20 Phoenix Sky Harbor (PHX) 3 10:39 Seattle-Tacoma (SEA) AS 645 Non-stop Boeing 737-800 (73H) 3:19 Effective 2026-02-20 through 2026-02-27
Mon-Thu,Sat,Sun 08:20 Phoenix Sky Harbor (PHX) 3 10:39 Seattle-Tacoma (SEA) AS 645 Non-stop Boeing 737 (73J) 3:19 Effective 2026-02-21 through 2026-02-26
Fri,Sat 08:20 Phoenix Sky Harbor (PHX) 3 10:39 Seattle-Tacoma (SEA) AS 645 Non-stop Boeing 737-800 (73H) 3:19 Effective 2026-02-28 through 2026-03-06
Tue-Thu,Sat,Sun 08:20 Phoenix Sky Harbor (PHX) 3 10:39 Seattle-Tacoma (SEA) AS 645 Non-stop Boeing 737 (73J) 3:19 Effective 2026-03-01 through 2026-03-07
Mon 08:20 Phoenix Sky Harbor (PHX) 3 10:39 Seattle-Tacoma (SEA) AS 645 Non-stop Boeing 737 MAX 9 (7M9) 3:19 Operates only on 2026-03-02

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Parallax here PHX-SEA

AS 645 is a domestic flight 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 2:59 and 3:19.

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Alaska Airlines flight AS 645:
Phoenix Sky Harbor - Seattle-Tacoma

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FLIGHT SCHEDULE

Direct Flights:

Alaska Airlines AS645

07:00

Phoenix Sky Harbor (PHX) 3

09:19

Seattle-Tacoma (SEA)

Valid until 2026-01-05

Mon

Tue

Wed
-

Thu
-

Fri

Sat

Sun

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

Direct Flights:

Alaska Airlines AS645

07:00

Phoenix Sky Harbor (PHX) 3

09:19

Seattle-Tacoma (SEA)

Valid until 2026-01-01

Mon
-

Tue
-

Wed

Thu

Fri
-

Sat
-

Sun
-

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

Direct Flights:

Alaska Airlines AS645

07:00

Phoenix Sky Harbor (PHX) 3

09:19

Seattle-Tacoma (SEA)

Operates only on 2026-01-06

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

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

Direct Flights:

Alaska Airlines AS645

07:00

Phoenix Sky Harbor (PHX) 3

10:10

Seattle-Tacoma (SEA)

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

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:10, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS645

07:05

Phoenix Sky Harbor (PHX) 3

10:10

Seattle-Tacoma (SEA)

Effective from 2026-06-10

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:05, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS645

07:20

Phoenix Sky Harbor (PHX) 3

10:39

Seattle-Tacoma (SEA)

Effective 2026-03-08 through 2026-03-15

Mon
-

Tue

Wed

Thu

Fri

Sat

Sun

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

Direct Flights:

Alaska Airlines AS645

07:20

Phoenix Sky Harbor (PHX) 3

10:39

Seattle-Tacoma (SEA)

Operates only on 2026-03-09

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

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

Direct Flights:

Alaska Airlines AS645

07:20

Phoenix Sky Harbor (PHX) 3

10:39

Seattle-Tacoma (SEA)

Effective 2026-03-16 through 2026-03-17

Mon

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

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

Direct Flights:

Alaska Airlines AS645

08:00

Phoenix Sky Harbor (PHX) 3

10:19

Seattle-Tacoma (SEA)

Effective 2026-01-07 through 2026-01-13

Mon

Tue

Wed

Thu

Fri
-

Sat
-

Sun
-

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

Direct Flights:

Alaska Airlines AS645

08:00

Phoenix Sky Harbor (PHX) 3

10:19

Seattle-Tacoma (SEA)

Effective 2026-01-09 through 2026-01-16

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

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

Direct Flights:

Alaska Airlines AS645

08:00

Phoenix Sky Harbor (PHX) 3

10:19

Seattle-Tacoma (SEA)

Operates only on 2026-01-11

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:19, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Alaska Airlines AS645

08:00

Phoenix Sky Harbor (PHX) 3

10:19

Seattle-Tacoma (SEA)

Effective 2026-01-14 through 2026-01-21

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun

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

Direct Flights:

Alaska Airlines AS645

08:00

Phoenix Sky Harbor (PHX) 3

10:19

Seattle-Tacoma (SEA)

Effective 2026-01-15 through 2026-01-26

Mon

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

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

Direct Flights:

Alaska Airlines AS645

08:00

Phoenix Sky Harbor (PHX) 3

10:19

Seattle-Tacoma (SEA)

Effective 2026-01-20 through 2026-01-27

Mon
-

Tue

Wed
-

Thu
-

Fri

Sat
-

Sun

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

Direct Flights:

Alaska Airlines AS645

08:00

Phoenix Sky Harbor (PHX) 3

10:19

Seattle-Tacoma (SEA)

Effective 2026-01-28 through 2026-02-11

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun

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

Direct Flights:

Alaska Airlines AS645

08:00

Phoenix Sky Harbor (PHX) 3

10:19

Seattle-Tacoma (SEA)

Operates only on 2026-01-29

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

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

Direct Flights:

Alaska Airlines AS645

08:00

Phoenix Sky Harbor (PHX) 3

10:19

Seattle-Tacoma (SEA)

Effective 2026-01-30 through 2026-02-05

Mon

Tue

Wed
-

Thu

Fri

Sat
-

Sun
-

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

Direct Flights:

Alaska Airlines AS645

08:00

Phoenix Sky Harbor (PHX) 3

10:19

Seattle-Tacoma (SEA)

Operates only on 2026-02-06

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

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

Direct Flights:

Alaska Airlines AS645

08:00

Phoenix Sky Harbor (PHX) 3

10:19

Seattle-Tacoma (SEA)

Effective 2026-02-09 through 2026-02-10

Mon

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

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

Direct Flights:

Alaska Airlines AS645

08:00

Phoenix Sky Harbor (PHX) 3

10:59

Seattle-Tacoma (SEA)

Operates only on 2026-03-18

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:59, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS645

08:00

Phoenix Sky Harbor (PHX) 3

11:10

Seattle-Tacoma (SEA)

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

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:10, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS645

08:20

Phoenix Sky Harbor (PHX) 3

10:39

Seattle-Tacoma (SEA)

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

Mon

Tue

Wed

Thu

Fri

Sat

Sun

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

Direct Flights:

Alaska Airlines AS645

08:20

Phoenix Sky Harbor (PHX) 3

10:39

Seattle-Tacoma (SEA)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

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

Direct Flights:

Alaska Airlines AS645

08:20

Phoenix Sky Harbor (PHX) 3

10:39

Seattle-Tacoma (SEA)

Effective 2026-02-21 through 2026-02-26

Mon

Tue

Wed

Thu

Fri
-

Sat

Sun

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

Direct Flights:

Alaska Airlines AS645

08:20

Phoenix Sky Harbor (PHX) 3

10:39

Seattle-Tacoma (SEA)

Effective 2026-02-28 through 2026-03-06

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat

Sun
-

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

Direct Flights:

Alaska Airlines AS645

08:20

Phoenix Sky Harbor (PHX) 3

10:39

Seattle-Tacoma (SEA)

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

Mon
-

Tue

Wed

Thu

Fri
-

Sat

Sun

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

Direct Flights:

Alaska Airlines AS645

08:20

Phoenix Sky Harbor (PHX) 3

10:39

Seattle-Tacoma (SEA)

Operates only on 2026-03-02

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

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

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Parallax here PHX-SEA

AS 645 is a domestic flight 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 2:59 and 3:19.

All Alaska Airlines flights

All PHX-SEA flights

Return (SEA-PHX) flights

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