Alaska Airlines
flight
AS 4478:
Multiple routes
FLIGHT SCHEDULE
Direct Codeshare Flights:
Alaska Airlines AS4478
Effective 2026-07-02 through 2026-08-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 3653)
Duration: 1:16, non-stop Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS4478
Effective 2026-08-08 through 2026-09-05
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 2880)
Duration: 3:50, non-stop Airbus A319 (319)
Direct Codeshare Flights:
Alaska Airlines AS4478
Effective 2026-03-08 through 2026-03-17
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by American Airlines.
(AA 3952)
Duration: 1:39, non-stop Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS4478
Effective 2026-03-19 through 2026-04-06
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
Codeshare flight, operated by American Airlines.
(AA 3952)
Duration: 1:39, non-stop Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS4478
Effective 2026-07-02 through 2026-08-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 3653)
Duration: 1:21, non-stop Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS4478
Effective 2026-04-07 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 3726)
Duration: 1:15, non-stop Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS4478
Effective 2026-05-21 through 2026-07-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 3653)
Duration: 1:10, non-stop Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS4478
Effective 2026-01-06 through 2026-02-11
Mon
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Tue
Wed
Thu
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Fri
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Sat
Sun
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Codeshare flight, operated by American Airlines.
(AA 6428)
Duration: 1:30, non-stop Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Alaska Airlines AS4478
Operates only on 2026-01-05
Mon
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
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Codeshare flight, operated by American Airlines.
(AA 5264)
Duration: 1:30, non-stop Canadair CRJ 900 (CR9)
Direct Codeshare Flights:
Alaska Airlines AS4478
Effective 2026-02-12 through 2026-02-19
Mon
Tue
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-
Wed
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-
Thu
Fri
Sat
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-
Sun
Codeshare flight, operated by American Airlines.
(AA 3424)
Duration: 3:02, non-stop Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS4478
Effective 2026-02-22 through 2026-03-06
Mon
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Tue
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Wed
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Thu
Fri
Sat
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-
Sun
Codeshare flight, operated by American Airlines.
(AA 3424)
Duration: 3:02, non-stop Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS4478
Effective 2026-08-05 through 2026-08-07
Mon
-
-
Tue
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-
Wed
Thu
Fri
Sat
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-
Sun
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Codeshare flight, operated by American Airlines.
(AA 6257)
Duration: 1:04, non-stop Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Alaska Airlines AS4478
Effective 2026-02-18 through 2026-02-25
Mon
Tue
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-
Wed
Thu
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Fri
Sat
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Sun
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Codeshare flight, operated by American Airlines.
(AA 5264)
Duration: 1:24, non-stop Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Alaska Airlines AS4478
Effective 2026-03-02 through 2026-03-04
Mon
Tue
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-
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 5264)
Duration: 1:24, non-stop Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Alaska Airlines AS4478
Valid until 2026-01-04
Mon
Tue
Wed
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-
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 5264)
Duration: 1:18, non-stop Canadair CRJ 700 (CR7)
This flight number is listed as serving the following routes:
- Chicago O'Hare (ORD) - Milwaukee (MKE)
- Greenville/Spartanburg (GSP) - Dallas Fort Worth (DFW)
- Midland (MAF) - Dallas Fort Worth (DFW)
- Philadelphia (PHL) - Cyril E. King, Saint Thomas Island (STT)
- Springfield (SGF) - Dallas Fort Worth (DFW)