Alaska Airlines flight AS 143: Anchorage - Seattle-Tacoma

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FLIGHT SCHEDULE
Direct Flights:
Daily 05:00 Anchorage (ANC) S 09:31 Seattle-Tacoma (SEA) AS 143 Non-stop Boeing 737 (73J) 3:31 Effective 2026-03-19 through 2026-04-21
Mon,Tue,Thu 17:25 Anchorage (ANC) S 22:04 Seattle-Tacoma (SEA) AS 143 Non-stop Boeing 737-800 (73H) 3:39 Valid until 2026-01-05
Wed,Sun 17:25 Anchorage (ANC) S 22:04 Seattle-Tacoma (SEA) AS 143 Non-stop Boeing 737 (73J) 3:39 Valid until 2026-01-04
Tue 17:25 Anchorage (ANC) S 22:04 Seattle-Tacoma (SEA) AS 143 Non-stop Boeing 737 MAX 9 (7M9) 3:39 Operates only on 2026-01-06
Daily 17:50 Seattle-Tacoma (SEA) 21:14 Honolulu (HNL) 1 AS 143 Non-stop Boeing 787-9 (789) 6:24 Effective 2026-04-25 through 2026-05-12
Wed 18:00 Anchorage (ANC) S 22:28 Seattle-Tacoma (SEA) AS 143 Non-stop Boeing 737 (73J) 3:28 Operates only on 2026-03-18
Tue,Wed,Fri 18:03 Anchorage (ANC) S 22:33 Seattle-Tacoma (SEA) AS 143 Non-stop Boeing 737 MAX 9 (7M9) 3:30 Effective 2026-01-07 through 2026-01-14
Mon,Thu,Sun 18:03 Anchorage (ANC) S 22:33 Seattle-Tacoma (SEA) AS 143 Non-stop Boeing 737 (73J) 3:30 Effective 2026-01-08 through 2026-01-15
Mon,Thu,Fri,Sun 18:03 Anchorage (ANC) S 22:33 Seattle-Tacoma (SEA) AS 143 Non-stop Boeing 737 (73J) 3:30 Effective 2026-01-16 through 2026-01-23
Tue,Wed,Sun 18:03 Anchorage (ANC) S 22:33 Seattle-Tacoma (SEA) AS 143 Non-stop Boeing 737 MAX 9 (7M9) 3:30 Effective 2026-01-20 through 2026-01-28
Mon,Thu 18:03 Anchorage (ANC) S 22:33 Seattle-Tacoma (SEA) AS 143 Non-stop Boeing 737 (73J) 3:30 Effective 2026-01-26 through 2026-01-29
Fri,Sun 18:03 Anchorage (ANC) S 22:33 Seattle-Tacoma (SEA) AS 143 Non-stop Boeing 737 MAX 8 (7M8) 3:30 Effective 2026-01-30 through 2026-02-01
Mon-Wed 18:03 Anchorage (ANC) S 22:33 Seattle-Tacoma (SEA) AS 143 Non-stop Boeing 737 MAX 9 (7M9) 3:30 Effective 2026-02-02 through 2026-02-04
Mon,Tue,Thu,Sun 18:03 Anchorage (ANC) S 22:33 Seattle-Tacoma (SEA) AS 143 Non-stop Boeing 737 (73J) 3:30 Effective 2026-02-05 through 2026-02-10
Fri 18:03 Anchorage (ANC) S 22:33 Seattle-Tacoma (SEA) AS 143 Non-stop Boeing 737-800 (73H) 3:30 Operates only on 2026-02-06
Wed 18:03 Anchorage (ANC) S 22:33 Seattle-Tacoma (SEA) AS 143 Non-stop Boeing 737 MAX 9 (7M9) 3:30 Operates only on 2026-02-11
Mon,Thu 18:09 Anchorage (ANC) S 22:38 Seattle-Tacoma (SEA) AS 143 Non-stop Boeing 737 (73J) 3:29 Effective 2026-02-12 through 2026-02-16
Tue,Fri 18:09 Anchorage (ANC) S 22:38 Seattle-Tacoma (SEA) AS 143 Non-stop Boeing 737 MAX 9 (7M9) 3:29 Effective 2026-02-13 through 2026-02-24
Thu,Sun 18:09 Anchorage (ANC) S 22:38 Seattle-Tacoma (SEA) AS 143 Non-stop Boeing 737-800 (73H) 3:29 Effective 2026-02-15 through 2026-02-22
Wed 18:09 Anchorage (ANC) S 22:38 Seattle-Tacoma (SEA) AS 143 Non-stop Boeing 737-700 (73G) 3:29 Effective 2026-02-18 through 2026-03-11
Mon,Thu 18:09 Anchorage (ANC) S 22:38 Seattle-Tacoma (SEA) AS 143 Non-stop Boeing 737 (73J) 3:29 Effective 2026-02-23 through 2026-03-02
Fri,Sun 18:09 Anchorage (ANC) S 22:38 Seattle-Tacoma (SEA) AS 143 Non-stop Boeing 737-800 (73H) 3:29 Effective 2026-02-27 through 2026-03-01
Mon,Tue,Thu 18:09 Anchorage (ANC) S 22:38 Seattle-Tacoma (SEA) AS 143 Non-stop Boeing 737 (73J) 3:29 Effective 2026-03-03 through 2026-03-16
Fri 18:09 Anchorage (ANC) S 22:38 Seattle-Tacoma (SEA) AS 143 Non-stop Boeing 737 MAX 8 (7M8) 3:29 Operates only on 2026-03-06
Sun 18:09 Anchorage (ANC) S 22:38 Seattle-Tacoma (SEA) AS 143 Non-stop Boeing 737-800 (73H) 3:29 Effective 2026-03-08 through 2026-03-15
Tue,Fri 18:09 Anchorage (ANC) S 22:38 Seattle-Tacoma (SEA) AS 143 Non-stop Boeing 737 MAX 9 (7M9) 3:29 Effective 2026-03-13 through 2026-03-17

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Parallax here ANC-SEA

AS 143 is a domestic flight departing from the Anchorage airport (ANC) and arriving at Seattle-Tacoma airport (SEA).
The flight distance is 1443 miles, or 2323 km.
The timezone of the departure airport is UTC-9 , 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 3:28 and 6:24.

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Alaska Airlines flight AS 143:
Anchorage - Seattle-Tacoma

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FLIGHT SCHEDULE

Direct Flights:

Alaska Airlines AS143

05:00

Anchorage (ANC) S

09:31

Seattle-Tacoma (SEA)

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

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:31, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS143

17:25

Anchorage (ANC) S

22:04

Seattle-Tacoma (SEA)

Valid until 2026-01-05

Mon

Tue

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 3:39, non-stop
Boeing 737-800 (73H)

Direct Flights:

Alaska Airlines AS143

17:25

Anchorage (ANC) S

22:04

Seattle-Tacoma (SEA)

Valid until 2026-01-04

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:39, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS143

17:25

Anchorage (ANC) S

22:04

Seattle-Tacoma (SEA)

Operates only on 2026-01-06

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:39, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Alaska Airlines AS143

17:50

Seattle-Tacoma (SEA)

21:14

Honolulu (HNL) 1

Effective 2026-04-25 through 2026-05-12

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 6:24, non-stop
Boeing 787-9 (789)

Direct Flights:

Alaska Airlines AS143

18:00

Anchorage (ANC) S

22:28

Seattle-Tacoma (SEA)

Operates only on 2026-03-18

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:28, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS143

18:03

Anchorage (ANC) S

22:33

Seattle-Tacoma (SEA)

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

Mon
-

Tue

Wed

Thu
-

Fri

Sat
-

Sun
-

Duration: 3:30, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Alaska Airlines AS143

18:03

Anchorage (ANC) S

22:33

Seattle-Tacoma (SEA)

Effective 2026-01-08 through 2026-01-15

Mon

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun

Duration: 3:30, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS143

18:03

Anchorage (ANC) S

22:33

Seattle-Tacoma (SEA)

Effective 2026-01-16 through 2026-01-23

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 3:30, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS143

18:03

Anchorage (ANC) S

22:33

Seattle-Tacoma (SEA)

Effective 2026-01-20 through 2026-01-28

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:30, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Alaska Airlines AS143

18:03

Anchorage (ANC) S

22:33

Seattle-Tacoma (SEA)

Effective 2026-01-26 through 2026-01-29

Mon

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 3:30, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS143

18:03

Anchorage (ANC) S

22:33

Seattle-Tacoma (SEA)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun

Duration: 3:30, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Alaska Airlines AS143

18:03

Anchorage (ANC) S

22:33

Seattle-Tacoma (SEA)

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

Mon

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:30, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Alaska Airlines AS143

18:03

Anchorage (ANC) S

22:33

Seattle-Tacoma (SEA)

Effective 2026-02-05 through 2026-02-10

Mon

Tue

Wed
-

Thu

Fri
-

Sat
-

Sun

Duration: 3:30, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS143

18:03

Anchorage (ANC) S

22:33

Seattle-Tacoma (SEA)

Operates only on 2026-02-06

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Duration: 3:30, non-stop
Boeing 737-800 (73H)

Direct Flights:

Alaska Airlines AS143

18:03

Anchorage (ANC) S

22:33

Seattle-Tacoma (SEA)

Operates only on 2026-02-11

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:30, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Alaska Airlines AS143

18:09

Anchorage (ANC) S

22:38

Seattle-Tacoma (SEA)

Effective 2026-02-12 through 2026-02-16

Mon

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 3:29, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS143

18:09

Anchorage (ANC) S

22:38

Seattle-Tacoma (SEA)

Effective 2026-02-13 through 2026-02-24

Mon
-

Tue

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Duration: 3:29, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Alaska Airlines AS143

18:09

Anchorage (ANC) S

22:38

Seattle-Tacoma (SEA)

Effective 2026-02-15 through 2026-02-22

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun

Duration: 3:29, non-stop
Boeing 737-800 (73H)

Direct Flights:

Alaska Airlines AS143

18:09

Anchorage (ANC) S

22:38

Seattle-Tacoma (SEA)

Effective 2026-02-18 through 2026-03-11

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:29, non-stop
Boeing 737-700 (73G)

Direct Flights:

Alaska Airlines AS143

18:09

Anchorage (ANC) S

22:38

Seattle-Tacoma (SEA)

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

Mon

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 3:29, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS143

18:09

Anchorage (ANC) S

22:38

Seattle-Tacoma (SEA)

Effective 2026-02-27 through 2026-03-01

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun

Duration: 3:29, non-stop
Boeing 737-800 (73H)

Direct Flights:

Alaska Airlines AS143

18:09

Anchorage (ANC) S

22:38

Seattle-Tacoma (SEA)

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

Mon

Tue

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 3:29, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS143

18:09

Anchorage (ANC) S

22:38

Seattle-Tacoma (SEA)

Operates only on 2026-03-06

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Duration: 3:29, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Alaska Airlines AS143

18:09

Anchorage (ANC) S

22:38

Seattle-Tacoma (SEA)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:29, non-stop
Boeing 737-800 (73H)

Direct Flights:

Alaska Airlines AS143

18:09

Anchorage (ANC) S

22:38

Seattle-Tacoma (SEA)

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

Mon
-

Tue

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Duration: 3:29, non-stop
Boeing 737 MAX 9 (7M9)

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Parallax here ANC-SEA

AS 143 is a domestic flight departing from the Anchorage airport (ANC) and arriving at Seattle-Tacoma airport (SEA).
The flight distance is 1443 miles, or 2323 km.
The timezone of the departure airport is UTC-9 , 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 3:28 and 6:24.

All Alaska Airlines flights

All ANC-SEA flights

Return (SEA-ANC) flights

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