Alaska Airlines
flight
AS 4521:
Multiple routes
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FLIGHT SCHEDULE
Direct Codeshare Flights:
Alaska Airlines AS4521
Effective 2025-07-05 through 2025-08-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 1227)
Duration: 3:04, non-stop Airbus A321neo (32Q)
Alaska Airlines AS4521
Effective 2025-06-05 through 2025-07-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 1227)
Duration: 3:12, non-stop Airbus A321neo (32Q)
Alaska Airlines AS4521
Valid until 2025-05-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 1227)
Duration: 3:18, non-stop Airbus A321neo (32Q)
Alaska Airlines AS4521
Effective 2025-10-06 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 1227)
Duration: 3:20, non-stop Airbus A321neo (32Q)
Alaska Airlines AS4521
Effective 2025-08-06 through 2025-09-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 1227)
Duration: 3:08, non-stop Airbus A321neo (32Q)
Alaska Airlines AS4521
Effective 2025-05-05 through 2025-06-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 4367)
Duration: 1:36, non-stop Embraer EMB 175 (E75)
Alaska Airlines AS4521
Effective 2025-12-03 through 2025-12-17
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 6497)
Duration: 3:00, non-stop Embraer EMB 175 (E75)
Alaska Airlines AS4521
Effective 2025-11-02 through 2025-12-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 6497)
Duration: 2:59, non-stop Embraer EMB 175 (E75)
Alaska Airlines AS4521
Effective 2025-12-18 through 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 6497)
Duration: 3:00, non-stop Embraer EMB 175 (E75)
Alaska Airlines AS4521
Effective 2025-09-03 through 2025-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 2299)
Duration: 2:52, non-stop Airbus A319 (319)
Alaska Airlines AS4521
Effective 2026-01-07 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 6497)
Duration: 2:05, non-stop Embraer EMB 175 (E75)
Alaska Airlines AS4521
Effective from 2026-02-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 6497)
Duration: 2:02, non-stop Embraer EMB 175 (E75)
Alaska Airlines AS4521
Effective 2025-11-02 through 2025-12-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 6497)
Duration: 3:31, non-stop Embraer EMB 175 (E75)
Alaska Airlines AS4521
Effective 2025-12-18 through 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 6497)
Duration: 3:42, non-stop Embraer EMB 175 (E75)
Alaska Airlines AS4521
Effective 2025-12-03 through 2025-12-17
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 6497)
Duration: 3:27, non-stop Embraer EMB 175 (E75)
Alaska Airlines AS4521
Effective 2025-10-26 through 2025-11-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 6497)
Duration: 1:47, non-stop Canadair CRJ 700 (CR7)
Alaska Airlines AS4521
Effective 2025-09-03 through 2025-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.
(AA 2299)
Duration: 3:09, non-stop Airbus A319 (319)
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This flight number is listed as serving the following routes:
- Grand Junction (GJT) - Phoenix Sky Harbor (PHX)
- Louisville (SDF) - Chicago O'Hare (ORD)
- Miami (MIA) - Dallas Fort Worth (DFW)
- San Antonio (SAT) - Los Angeles (LAX)