Alaska Airlines flight AS 621: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Daily 11:25 Seattle-Tacoma (SEA) 14:17 San Diego (SAN) 2 AS 621 Non-stop Boeing 737 (73J) 2:52 Effective 2026-03-18 through 2026-05-12
Tue 11:39 Seattle-Tacoma (SEA) 14:36 San Diego (SAN) 2 AS 621 Non-stop Boeing 737-800 (73H) 2:57 Valid until 2026-01-06
Mon,Wed,Thu,Sun 11:49 Seattle-Tacoma (SEA) 14:46 San Diego (SAN) 2 AS 621 Non-stop Boeing 737-800 (73H) 2:57 Valid until 2026-01-05
Fri 11:49 Seattle-Tacoma (SEA) 14:46 San Diego (SAN) 2 AS 621 Non-stop Boeing 737 MAX 9 (7M9) 2:57 Operates only on 2026-01-02
Thu 12:32 Seattle-Tacoma (SEA) 15:22 San Diego (SAN) 2 AS 621 Non-stop Boeing 737-800 (73H) 2:50 Operates only on 2026-02-12
Thu 12:32 Seattle-Tacoma (SEA) 15:22 San Diego (SAN) 2 AS 621 Non-stop Boeing 737 (73J) 2:50 Operates only on 2026-02-19
Thu 12:32 Seattle-Tacoma (SEA) 15:22 San Diego (SAN) 2 AS 621 Non-stop Boeing 737-800 (73H) 2:50 Operates only on 2026-02-26
Thu 12:32 Seattle-Tacoma (SEA) 15:22 San Diego (SAN) 2 AS 621 Non-stop Boeing 737 (73J) 2:50 Operates only on 2026-03-05
Thu 12:32 Seattle-Tacoma (SEA) 15:22 San Diego (SAN) 2 AS 621 Non-stop Boeing 737 MAX 9 (7M9) 2:50 Operates only on 2026-03-12
Mon-Thu,Sat,Sun 12:41 Seattle-Tacoma (SEA) 15:29 San Diego (SAN) 2 AS 621 Non-stop Boeing 737 (73J) 2:48 Effective 2026-01-07 through 2026-01-13
Wed,Thu,Sun 12:41 Seattle-Tacoma (SEA) 15:29 San Diego (SAN) 2 AS 621 Non-stop Boeing 737 MAX 9 (7M9) 2:48 Effective 2026-01-14 through 2026-01-21
Mon,Tue,Thu,Sat 12:41 Seattle-Tacoma (SEA) 15:29 San Diego (SAN) 2 AS 621 Non-stop Boeing 737 (73J) 2:48 Effective 2026-01-17 through 2026-01-24
Mon-Wed,Sat,Sun 12:41 Seattle-Tacoma (SEA) 15:29 San Diego (SAN) 2 AS 621 Non-stop Boeing 737 (73J) 2:48 Effective 2026-01-25 through 2026-01-31
Mon,Wed,Thu 12:41 Seattle-Tacoma (SEA) 15:29 San Diego (SAN) 2 AS 621 Non-stop Boeing 737 MAX 9 (7M9) 2:48 Effective 2026-01-29 through 2026-02-04
Sun 12:41 Seattle-Tacoma (SEA) 15:29 San Diego (SAN) 2 AS 621 Non-stop Boeing 737 MAX 8 (7M8) 2:48 Operates only on 2026-02-01
Mon,Tue,Thu,Sat,Sun 12:41 Seattle-Tacoma (SEA) 15:29 San Diego (SAN) 2 AS 621 Non-stop Boeing 737 (73J) 2:48 Effective 2026-02-03 through 2026-02-10
Wed 12:41 Seattle-Tacoma (SEA) 15:29 San Diego (SAN) 2 AS 621 Non-stop Boeing 737 (73J) 2:48 Operates only on 2026-02-11
Mon-Wed,Sun 12:56 Seattle-Tacoma (SEA) 15:46 San Diego (SAN) 2 AS 621 Non-stop Boeing 737 MAX 9 (7M9) 2:50 Effective 2026-02-15 through 2026-03-17
Daily 14:30 Portland (PDX) 17:22 Anchorage (ANC) S AS 621 Non-stop Boeing 737 (73J) 3:52 Effective from 2026-10-03
Sat 15:40 Seattle-Tacoma (SEA) 16:43 Redmond/Bend (RDM) AS 621 Non-stop Boeing 737 (73J) 1:03 Operates only on 2026-09-19
Sat 17:00 Anchorage (ANC) S 22:45 San Francisco (SFO) 1 AS 621 Non-stop Boeing 737 (73J) 4:45 Effective 2026-06-13 through 2026-08-15
Daily 17:50 Seattle-Tacoma (SEA) 20:33 Santa Ana (SNA) AS 621 Non-stop Boeing 737-800 (73H) 2:43 Effective 2026-05-13 through 2026-06-09

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Parallax here -

This flight number is listed as serving the following routes:

Anchorage (ANC) - San Francisco (SFO)
Portland (PDX) - Anchorage (ANC)
Seattle-Tacoma (SEA) - Redmond/Bend (RDM)
Seattle-Tacoma (SEA) - San Diego (SAN)
Seattle-Tacoma (SEA) - Santa Ana (SNA)

All Alaska Airlines flights

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Alaska Airlines flight AS 621: Multiple routes

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FLIGHT SCHEDULE

Direct Flights:

Alaska Airlines AS621

11:25

Seattle-Tacoma (SEA)

14:17

San Diego (SAN) 2

Effective 2026-03-18 through 2026-05-12

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 2:52, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS621

11:39

Seattle-Tacoma (SEA)

14:36

San Diego (SAN) 2

Valid until 2026-01-06

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:57, non-stop
Boeing 737-800 (73H)

Direct Flights:

Alaska Airlines AS621

11:49

Seattle-Tacoma (SEA)

14:46

San Diego (SAN) 2

Valid until 2026-01-05

Mon

Tue
-

Wed

Thu

Fri
-

Sat
-

Sun

Duration: 2:57, non-stop
Boeing 737-800 (73H)

Direct Flights:

Alaska Airlines AS621

11:49

Seattle-Tacoma (SEA)

14:46

San Diego (SAN) 2

Operates only on 2026-01-02

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Duration: 2:57, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Alaska Airlines AS621

12:32

Seattle-Tacoma (SEA)

15:22

San Diego (SAN) 2

Operates only on 2026-02-12

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 2:50, non-stop
Boeing 737-800 (73H)

Direct Flights:

Alaska Airlines AS621

12:32

Seattle-Tacoma (SEA)

15:22

San Diego (SAN) 2

Operates only on 2026-02-19

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 2:50, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS621

12:32

Seattle-Tacoma (SEA)

15:22

San Diego (SAN) 2

Operates only on 2026-02-26

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 2:50, non-stop
Boeing 737-800 (73H)

Direct Flights:

Alaska Airlines AS621

12:32

Seattle-Tacoma (SEA)

15:22

San Diego (SAN) 2

Operates only on 2026-03-05

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 2:50, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS621

12:32

Seattle-Tacoma (SEA)

15:22

San Diego (SAN) 2

Operates only on 2026-03-12

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

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

Direct Flights:

Alaska Airlines AS621

12:41

Seattle-Tacoma (SEA)

15:29

San Diego (SAN) 2

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

Mon

Tue

Wed

Thu

Fri
-

Sat

Sun

Duration: 2:48, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS621

12:41

Seattle-Tacoma (SEA)

15:29

San Diego (SAN) 2

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

Mon
-

Tue
-

Wed

Thu

Fri
-

Sat
-

Sun

Duration: 2:48, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Alaska Airlines AS621

12:41

Seattle-Tacoma (SEA)

15:29

San Diego (SAN) 2

Effective 2026-01-17 through 2026-01-24

Mon

Tue

Wed
-

Thu

Fri
-

Sat

Sun
-

Duration: 2:48, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS621

12:41

Seattle-Tacoma (SEA)

15:29

San Diego (SAN) 2

Effective 2026-01-25 through 2026-01-31

Mon

Tue

Wed

Thu
-

Fri
-

Sat

Sun

Duration: 2:48, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS621

12:41

Seattle-Tacoma (SEA)

15:29

San Diego (SAN) 2

Effective 2026-01-29 through 2026-02-04

Mon

Tue
-

Wed

Thu

Fri
-

Sat
-

Sun
-

Duration: 2:48, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Alaska Airlines AS621

12:41

Seattle-Tacoma (SEA)

15:29

San Diego (SAN) 2

Operates only on 2026-02-01

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:48, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Alaska Airlines AS621

12:41

Seattle-Tacoma (SEA)

15:29

San Diego (SAN) 2

Effective 2026-02-03 through 2026-02-10

Mon

Tue

Wed
-

Thu

Fri
-

Sat

Sun

Duration: 2:48, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS621

12:41

Seattle-Tacoma (SEA)

15:29

San Diego (SAN) 2

Operates only on 2026-02-11

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:48, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS621

12:56

Seattle-Tacoma (SEA)

15:46

San Diego (SAN) 2

Effective 2026-02-15 through 2026-03-17

Mon

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun

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

Direct Flights:

Alaska Airlines AS621

14:30

Portland (PDX)

17:22

Anchorage (ANC) S

Effective from 2026-10-03

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:52, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS621

15:40

Seattle-Tacoma (SEA)

16:43

Redmond/Bend (RDM)

Operates only on 2026-09-19

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 1:03, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS621

17:00

Anchorage (ANC) S

22:45

San Francisco (SFO) 1

Effective 2026-06-13 through 2026-08-15

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 4:45, non-stop
Boeing 737 (73J)

Direct Flights:

Alaska Airlines AS621

17:50

Seattle-Tacoma (SEA)

20:33

Santa Ana (SNA)

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

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 2:43, non-stop
Boeing 737-800 (73H)

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Parallax here -

This flight number is listed as serving the following routes:

Anchorage (ANC) - San Francisco (SFO)
Portland (PDX) - Anchorage (ANC)
Seattle-Tacoma (SEA) - Redmond/Bend (RDM)
Seattle-Tacoma (SEA) - San Diego (SAN)
Seattle-Tacoma (SEA) - Santa Ana (SNA)

All Alaska Airlines flights

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