Alaska Airlines
flight
AS 4120:
Multiple routes
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FLIGHT SCHEDULE
Direct Codeshare Flights:
Alaska Airlines AS4120
Effective 2026-04-07 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 2901)
Duration: 3:31, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
Alaska Airlines AS4120
Effective 2026-07-02 through 2026-08-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 2664)
Duration: 3:09, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
Alaska Airlines AS4120
Effective 2026-09-12 through 2026-10-03
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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Codeshare flight, operated by American Airlines.
(AA 1331)
Duration: 3:18, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
Alaska Airlines AS4120
Effective 2026-08-05 through 2026-09-08
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 1331)
Duration: 3:06, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
Alaska Airlines AS4120
Effective 2026-05-21 through 2026-07-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 5248)
Duration: 2:17, non-stop Canadair CRJ 900 (CR9)
Direct Codeshare Flights:
Alaska Airlines AS4120
Effective 2026-08-05 through 2026-09-08
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 1331)
Duration: 3:07, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
Alaska Airlines AS4120
Effective 2026-07-02 through 2026-08-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 2664)
Duration: 3:09, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
Alaska Airlines AS4120
Effective 2026-05-13 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 2901)
Duration: 3:00, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
Alaska Airlines AS4120
Operates only on 2026-02-12
Mon
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Tue
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Wed
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Thu
Fri
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Sat
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Sun
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Codeshare flight, operated by American Airlines.
(AA 4489)
Duration: 1:56, non-stop Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS4120
Effective 2026-02-17 through 2026-03-04
Mon
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-
Tue
Wed
Thu
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Fri
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Sat
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-
Sun
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Codeshare flight, operated by American Airlines.
(AA 4489)
Duration: 1:56, non-stop Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS4120
Effective 2026-03-08 through 2026-04-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 5490)
Duration: 1:54, non-stop Canadair CRJ 900 (CR9)
Direct Codeshare Flights:
Alaska Airlines AS4120
Valid until 2026-01-05
Mon
Tue
Wed
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-
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 5596)
Duration: 1:52, non-stop Canadair CRJ 900 (CR9)
Direct Codeshare Flights:
Alaska Airlines AS4120
Effective from 2026-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 2742)
Duration: 2:49, non-stop Airbus A321 (321)
Direct Codeshare Flights:
Alaska Airlines AS4120
Effective 2026-01-06 through 2026-02-10
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 2198)
Duration: 2:32, non-stop Airbus A319 (319)
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This flight number is listed as serving the following routes:
- Dallas Fort Worth (DFW) - Santa Ana (SNA)
- Indianapolis (IND) - Philadelphia (PHL)
- Philadelphia (PHL) - Jacksonville (JAX)
- Tampa (TPA) - Dallas Fort Worth (DFW)