Alaska Airlines
flight
AS 4638:
Multiple routes
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FLIGHT SCHEDULE
Direct Codeshare Flights:
Alaska Airlines AS4638
Valid until 2026-01-03
Mon
Tue
Wed
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-
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 1914)
Duration: 2:49, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
Alaska Airlines AS4638
Operates only on 2026-01-04
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
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-
Sun
Codeshare flight, operated by American Airlines.
(AA 1914)
Duration: 2:46, non-stop Airbus A321 (321)
Direct Codeshare Flights:
Alaska Airlines AS4638
Effective 2026-02-12 through 2026-02-19
Mon
Tue
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-
Wed
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-
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by American Airlines.
(AA 1914)
Duration: 2:48, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
Alaska Airlines AS4638
Effective 2026-02-22 through 2026-03-06
Mon
-
-
Tue
-
-
Wed
-
-
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by American Airlines.
(AA 1914)
Duration: 2:48, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
Alaska Airlines AS4638
Effective 2026-03-08 through 2026-04-06
Mon
Tue
-
-
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 1914)
Duration: 2:47, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
Alaska Airlines AS4638
Effective 2026-04-07 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 2471)
Duration: 2:51, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
Alaska Airlines AS4638
Effective 2026-07-02 through 2026-08-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 2280)
Duration: 3:00, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
Alaska Airlines AS4638
Effective 2026-09-09 through 2026-10-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 2288)
Duration: 3:03, non-stop Boeing 737 MAX 8 (7M8)
Direct Codeshare Flights:
Alaska Airlines AS4638
Effective from 2026-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 2288)
Duration: 2:54, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
Alaska Airlines AS4638
Effective 2026-08-05 through 2026-09-08
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 2288)
Duration: 3:04, non-stop Boeing 737 MAX 8 (7M8)
Direct Codeshare Flights:
Alaska Airlines AS4638
Effective 2026-05-21 through 2026-07-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 1914)
Duration: 1:08, non-stop Airbus A321 (321)
Direct Codeshare Flights:
Alaska Airlines AS4638
Operates only on 2026-01-04
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
-
-
Sun
Codeshare flight, operated by American Airlines.
(AA 1914)
Duration: 3:43, non-stop Airbus A321 (321)
Direct Codeshare Flights:
Alaska Airlines AS4638
Effective 2026-03-08 through 2026-04-06
Mon
Tue
-
-
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 1914)
Duration: 3:48, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
Alaska Airlines AS4638
Effective 2026-02-12 through 2026-02-19
Mon
Tue
-
-
Wed
-
-
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by American Airlines.
(AA 1914)
Duration: 3:47, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
Alaska Airlines AS4638
Effective 2026-02-22 through 2026-03-06
Mon
-
-
Tue
-
-
Wed
-
-
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by American Airlines.
(AA 1914)
Duration: 3:47, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
Alaska Airlines AS4638
Valid until 2026-01-03
Mon
Tue
Wed
-
-
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 1914)
Duration: 3:38, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
Alaska Airlines AS4638
Effective 2026-04-07 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 2471)
Duration: 3:34, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
Alaska Airlines AS4638
Effective from 2026-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 2288)
Duration: 3:31, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
Alaska Airlines AS4638
Effective 2026-09-09 through 2026-10-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 2288)
Duration: 3:22, non-stop Boeing 737 MAX 8 (7M8)
Direct Codeshare Flights:
Alaska Airlines AS4638
Effective 2026-07-02 through 2026-08-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 2280)
Duration: 3:16, non-stop Boeing 737-800 (738)
Direct Codeshare Flights:
Alaska Airlines AS4638
Effective 2026-08-05 through 2026-09-08
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 2288)
Duration: 3:16, non-stop Boeing 737 MAX 8 (7M8)
Direct Codeshare Flights:
Alaska Airlines AS4638
Effective 2026-05-21 through 2026-07-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 1914)
Duration: 1:22, non-stop Airbus A321 (321)
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This flight number is listed as serving the following routes:
- Dallas Fort Worth (DFW) - Houston George Bush (IAH)
- Dallas Fort Worth (DFW) - Norfolk (ORF)