Alaska Airlines
vuelo
AS 521:
Multiple routes
HORARIO DE VUELOS
Vuelos directos:
Alaska Airlines AS521
Effective 2026-02-12 through 2026-02-23
Lun
Mar
-
-
Mie
Jue
Vie
Sab
Dom
Duration: 2:14, non-stop
Boeing 737 (73J)
Boeing 737 (73J)
Vuelos directos:
Alaska Airlines AS521
Operates only on 2026-02-17
Lun
-
-
Mar
Mie
-
-
Jue
-
-
Vie
-
-
Sab
-
-
Dom
-
-
Duration: 2:14, non-stop
Boeing 737 MAX 9 (7M9)
Boeing 737 MAX 9 (7M9)
Vuelos directos:
Alaska Airlines AS521
Effective 2026-02-24 through 2026-03-15
Lun
Mar
Mie
Jue
Vie
Sab
Dom
Duration: 2:14, non-stop
Boeing 737 (73J)
Boeing 737 (73J)
Vuelos directos:
Alaska Airlines AS521
Effective 2026-03-16 through 2026-03-17
Lun
Mar
Mie
-
-
Jue
-
-
Vie
-
-
Sab
-
-
Dom
-
-
Duration: 2:14, non-stop
Boeing 737 MAX 9 (7M9)
Boeing 737 MAX 9 (7M9)
Vuelos directos:
Alaska Airlines AS521
Operates only on 2026-01-07
Lun
-
-
Mar
-
-
Mie
Jue
-
-
Vie
-
-
Sab
-
-
Dom
-
-
Duration: 2:12, non-stop
Boeing 737-800 (73H)
Boeing 737-800 (73H)
Vuelos directos:
Alaska Airlines AS521
Effective 2026-01-08 through 2026-01-12
Lun
Mar
-
-
Mie
-
-
Jue
Vie
-
-
Sab
-
-
Dom
-
-
Duration: 2:12, non-stop
Boeing 737 MAX 9 (7M9)
Boeing 737 MAX 9 (7M9)
Vuelos directos:
Alaska Airlines AS521
Effective 2026-01-09 through 2026-01-23
Lun
-
-
Mar
Mie
Jue
Vie
Sab
Dom
Duration: 2:12, non-stop
Boeing 737 (73J)
Boeing 737 (73J)
Vuelos directos:
Alaska Airlines AS521
Operates only on 2026-01-19
Lun
Mar
-
-
Mie
-
-
Jue
-
-
Vie
-
-
Sab
-
-
Dom
-
-
Duration: 2:12, non-stop
Boeing 737 MAX 9 (7M9)
Boeing 737 MAX 9 (7M9)
Vuelos directos:
Alaska Airlines AS521
Effective 2026-01-24 through 2026-01-26
Lun
Mar
-
-
Mie
-
-
Jue
-
-
Vie
-
-
Sab
Dom
-
-
Duration: 2:12, non-stop
Boeing 737-800 (73H)
Boeing 737-800 (73H)
Vuelos directos:
Alaska Airlines AS521
Effective 2026-01-25 through 2026-02-01
Lun
-
-
Mar
-
-
Mie
-
-
Jue
Vie
Sab
Dom
Duration: 2:12, non-stop
Boeing 737 (73J)
Boeing 737 (73J)
Vuelos directos:
Alaska Airlines AS521
Effective 2026-01-27 through 2026-01-28
Lun
-
-
Mar
Mie
Jue
-
-
Vie
-
-
Sab
-
-
Dom
-
-
Duration: 2:12, non-stop
Boeing 737 MAX 9 (7M9)
Boeing 737 MAX 9 (7M9)
Vuelos directos:
Alaska Airlines AS521
Effective 2026-02-02 through 2026-02-11
Lun
Mar
Mie
Jue
Vie
Sab
Dom
Duration: 2:12, non-stop
Boeing 737 (73J)
Boeing 737 (73J)
Vuelos directos:
Alaska Airlines AS521
Effective 2026-06-10 through 2026-08-18
Lun
Mar
Mie
Jue
Vie
Sab
Dom
Duration: 2:11, non-stop
Boeing 737 (73J)
Boeing 737 (73J)
Vuelos directos:
Alaska Airlines AS521
Effective 2026-05-13 through 2026-06-09
Lun
Mar
Mie
Jue
Vie
Sab
Dom
Duration: 4:38, non-stop
Boeing 737 (73J)
Boeing 737 (73J)
Vuelos directos:
Alaska Airlines AS521
Effective from 2026-08-19
Lun
Mar
Mie
Jue
Vie
Sab
Dom
Duration: 2:11, non-stop
Boeing 737 (73J)
Boeing 737 (73J)
Vuelos directos:
Alaska Airlines AS521
Operates only on 2026-03-18
Lun
-
-
Mar
-
-
Mie
Jue
-
-
Vie
-
-
Sab
-
-
Dom
-
-
Duration: 2:09, non-stop
Boeing 737 (73J)
Boeing 737 (73J)
Vuelos directos:
Alaska Airlines AS521
Effective 2026-03-19 through 2026-05-12
Lun
Mar
Mie
Jue
Vie
Sab
Dom
Duration: 2:10, non-stop
Boeing 737 (73J)
Boeing 737 (73J)
Vuelos directos:
Alaska Airlines AS521
Valid until 2026-01-01
Lun
-
-
Mar
-
-
Mie
-
-
Jue
Vie
-
-
Sab
-
-
Dom
-
-
Duration: 2:13, non-stop
Boeing 737 MAX 9 (7M9)
Boeing 737 MAX 9 (7M9)
This flight number is listed as serving the following routes:
- Austin (AUS) - Seattle-Tacoma (SEA)
- San Jose (SJC) - Seattle-Tacoma (SEA)