Alaska Airlines flight AS 456: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Sat 07:00 San Francisco (SFO) 1 14:22 Guanacaste (LIR)
AS 456 Non-stop Boeing 737 MAX 8 (7M8) 6:22 Effective 2026-03-21 through 2026-05-09
Daily 07:00 John Glenn Columbus (CMH) 09:05 Seattle-Tacoma (SEA)
AS 456 Non-stop Boeing 737 (73J) 5:05 Effective 2026-05-13 through 2026-06-09
Daily 07:00 John Glenn Columbus (CMH) 09:09 Seattle-Tacoma (SEA)
AS 456 Non-stop Boeing 737 (73J) 5:09 Effective 2026-06-10 through 2026-10-02
Tue 15:59 Seattle-Tacoma (SEA) 00:23 Boston Logan (BOS) B
AS 456 Non-stop Boeing 737 MAX 9 (7M9) 5:24 Operates only on 2026-01-06
The flight arrives 1 day after departure.
Sat 16:47 Guanacaste (LIR) 22:40 San Francisco (SFO) I
AS 456 Non-stop Boeing 737 MAX 9 (7M9) 6:53 Operates only on 2026-03-14
Sat 18:11 Guanacaste (LIR) 23:10 San Francisco (SFO) I
AS 456 Non-stop Boeing 737 MAX 9 (7M9) 6:59 Effective 2026-01-10 through 2026-02-07
Sat 18:12 Guanacaste (LIR) 23:05 San Francisco (SFO) I
AS 456 Non-stop Boeing 737 MAX 8 (7M8) 6:53 Effective 2026-02-14 through 2026-03-07
Sat 18:23 Guanacaste (LIR) 23:27 San Francisco (SFO) I
AS 456 Non-stop Boeing 737 MAX 8 (7M8) 7:04 Valid until 2026-01-03
Sun 18:23 Guanacaste (LIR) 23:27 San Francisco (SFO) I
AS 456 Non-stop Boeing 737 MAX 9 (7M9) 7:04 Operates only on 2026-01-04
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This flight number is listed as serving the following routes:


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Alaska Airlines flight AS 456: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Alaska Airlines AS456
07:00
San Francisco (SFO) 1

14:22
Guanacaste (LIR)
Effective 2026-03-21 through 2026-05-09
Mon
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Tue
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Wed
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Thu
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Fri
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Sat
Sun
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Duration: 6:22, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Alaska Airlines AS456
07:00
John Glenn Columbus (CMH)

09:05
Seattle-Tacoma (SEA)
Effective 2026-05-13 through 2026-06-09
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:05, non-stop
Boeing 737 (73J)
Direct Flights:
Alaska Airlines AS456
07:00
John Glenn Columbus (CMH)

09:09
Seattle-Tacoma (SEA)
Effective 2026-06-10 through 2026-10-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:09, non-stop
Boeing 737 (73J)
Direct Flights:
Alaska Airlines AS456
15:59
Seattle-Tacoma (SEA)

00:23(+1)
Boston Logan (BOS) B
Operates only on 2026-01-06
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 5:24, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.
Direct Flights:
Alaska Airlines AS456
16:47
Guanacaste (LIR)

22:40
San Francisco (SFO) I
Operates only on 2026-03-14
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
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Duration: 6:53, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
Alaska Airlines AS456
18:11
Guanacaste (LIR)

23:10
San Francisco (SFO) I
Effective 2026-01-10 through 2026-02-07
Mon
-
Tue
-
Wed
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Thu
-
Fri
-
Sat
Sun
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Duration: 6:59, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
Alaska Airlines AS456
18:12
Guanacaste (LIR)

23:05
San Francisco (SFO) I
Effective 2026-02-14 through 2026-03-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 6:53, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Alaska Airlines AS456
18:23
Guanacaste (LIR)

23:27
San Francisco (SFO) I
Valid until 2026-01-03
Mon
-
Tue
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Wed
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Thu
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Fri
-
Sat
Sun
-
Duration: 7:04, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Alaska Airlines AS456
18:23
Guanacaste (LIR)

23:27
San Francisco (SFO) I
Operates only on 2026-01-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 7:04, non-stop
Boeing 737 MAX 9 (7M9)
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This flight number is listed as serving the following routes:
  • Guanacaste (LIR) - San Francisco (SFO)
  • John Glenn Columbus (CMH) - Seattle-Tacoma (SEA)
  • Seattle-Tacoma (SEA) - Boston Logan (BOS)
All Alaska Airlines flights
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