Alaska Airlines flight AS 373: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Daily 07:13 Portland (PDX) 10:21 Lihue (LIH)
AS 373 Non-stop Boeing 737-800 (73H) 6:08 Effective from 2026-06-10
Mon,Sat 07:30 Newark Liberty, New York (EWR) B 10:57 San Francisco (SFO) 1
AS 373 Non-stop Boeing 737 MAX 9 (7M9) 6:27 Valid until 2026-01-03
Mon,Tue,Thu,Sun 07:30 Newark Liberty, New York (EWR) B 10:57 San Francisco (SFO) 1
AS 373 Non-stop Boeing 737 (73J) 6:27 Valid until 2026-01-06
Wed,Fri 07:30 Newark Liberty, New York (EWR) B 10:57 San Francisco (SFO) 1
AS 373 Non-stop Boeing 737-800 (73H) 6:27 Valid until 2026-01-02
Sat 08:00 Seattle-Tacoma (SEA) 17:14 Guanacaste (LIR)
AS 373 Non-stop Boeing 737 MAX 8 (7M8) 8:14 Effective 2026-04-25 through 2026-05-09
Daily 09:00 Newark Liberty, New York (EWR) B 12:33 San Francisco (SFO) 1
AS 373 Non-stop Boeing 737 (73J) 6:33 Effective 2026-05-13 through 2026-06-09
Mon,Thu 14:16 San Francisco (SFO) 1 15:53 Palm Springs (PSP)
AS 373 Non-stop Boeing 737 (73J) 1:37 Effective 2026-04-09 through 2026-04-20
Tue,Thu 15:50 Lihue (LIH) 00:35 San Diego (SAN) 2
AS 373 Non-stop Boeing 737 MAX 8 (7M8) 5:45 Effective 2026-03-10 through 2026-03-17
The flight arrives 1 day after departure.
Wed 15:50 Lihue (LIH) 00:35 San Diego (SAN) 2
AS 373 Non-stop Boeing 737-800 (73H) 5:45 Operates only on 2026-03-11
The flight arrives 1 day after departure.
Wed,Thu 16:50 Lihue (LIH) 00:35 San Diego (SAN) 2
AS 373 Non-stop Boeing 737-800 (73H) 5:45 Effective 2026-02-12 through 2026-03-05
The flight arrives 1 day after departure.
Tue 16:50 Lihue (LIH) 00:35 San Diego (SAN) 2
AS 373 Non-stop Boeing 737 MAX 8 (7M8) 5:45 Effective 2026-02-17 through 2026-03-03
The flight arrives 1 day after departure.
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This flight number is listed as serving the following routes:


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Alaska Airlines flight AS 373: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Alaska Airlines AS373
07:13
Portland (PDX)

10:21
Lihue (LIH)
Effective from 2026-06-10
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 6:08, non-stop
Boeing 737-800 (73H)
Direct Flights:
Alaska Airlines AS373
07:30
Newark Liberty, New York (EWR) B

10:57
San Francisco (SFO) 1
Valid until 2026-01-03
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 6:27, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
Alaska Airlines AS373
07:30
Newark Liberty, New York (EWR) B

10:57
San Francisco (SFO) 1
Valid until 2026-01-06
Mon
Tue
Wed
-
Thu
Fri
-
Sat
-
Sun
Duration: 6:27, non-stop
Boeing 737 (73J)
Direct Flights:
Alaska Airlines AS373
07:30
Newark Liberty, New York (EWR) B

10:57
San Francisco (SFO) 1
Valid until 2026-01-02
Mon
-
Tue
-
Wed
Thu
-
Fri
Sat
-
Sun
-
Duration: 6:27, non-stop
Boeing 737-800 (73H)
Direct Flights:
Alaska Airlines AS373
08:00
Seattle-Tacoma (SEA)

17:14
Guanacaste (LIR)
Effective 2026-04-25 through 2026-05-09
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 8:14, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Alaska Airlines AS373
09:00
Newark Liberty, New York (EWR) B

12:33
San Francisco (SFO) 1
Effective 2026-05-13 through 2026-06-09
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 6:33, non-stop
Boeing 737 (73J)
Direct Flights:
Alaska Airlines AS373
14:16
San Francisco (SFO) 1

15:53
Palm Springs (PSP)
Effective 2026-04-09 through 2026-04-20
Mon
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 1:37, non-stop
Boeing 737 (73J)
Direct Flights:
Alaska Airlines AS373
15:50
Lihue (LIH)

00:35(+1)
San Diego (SAN) 2
Effective 2026-03-10 through 2026-03-17
Mon
-
Tue
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 5:45, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
Direct Flights:
Alaska Airlines AS373
15:50
Lihue (LIH)

00:35(+1)
San Diego (SAN) 2
Operates only on 2026-03-11
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 5:45, non-stop
Boeing 737-800 (73H)
The flight arrives 1 day after departure.
Direct Flights:
Alaska Airlines AS373
16:50
Lihue (LIH)

00:35(+1)
San Diego (SAN) 2
Effective 2026-02-12 through 2026-03-05
Mon
-
Tue
-
Wed
Thu
Fri
-
Sat
-
Sun
-
Duration: 5:45, non-stop
Boeing 737-800 (73H)
The flight arrives 1 day after departure.
Direct Flights:
Alaska Airlines AS373
16:50
Lihue (LIH)

00:35(+1)
San Diego (SAN) 2
Effective 2026-02-17 through 2026-03-03
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 5:45, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
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This flight number is listed as serving the following routes:
  • Lihue (LIH) - San Diego (SAN)
  • Newark Liberty, New York (EWR) - San Francisco (SFO)
  • Portland (PDX) - Lihue (LIH)
  • San Francisco (SFO) - Palm Springs (PSP)
  • Seattle-Tacoma (SEA) - Guanacaste (LIR)
All Alaska Airlines flights
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