Alaska Airlines flight AS 421: Chicago O'Hare - Seattle-Tacoma

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FLIGHT SCHEDULE
Direct Flights:
Daily 18:30 Los Angeles (LAX) 6 20:52 Portland (PDX)
AS 421 Non-stop Boeing 737 (73J) 2:22 Effective from 2025-03-19
Daily 19:07 Chicago O'Hare (ORD) 2 22:00 Seattle-Tacoma (SEA)
AS 421 Non-stop Boeing 737 (73J) 4:53 Effective 2024-12-19 through 2025-01-05
Sat 19:12 Chicago O'Hare (ORD) 2 21:59 Seattle-Tacoma (SEA)
AS 421 Non-stop Boeing 737 MAX 9 (7M9) 4:47 Operates only on 2024-11-23
Sat 19:12 Chicago O'Hare (ORD) 2 21:59 Seattle-Tacoma (SEA)
AS 421 Non-stop Boeing 737-800 (73H) 4:47 Operates only on 2024-11-30
Wed,Fri 19:13 Chicago O'Hare (ORD) 2 22:00 Seattle-Tacoma (SEA)
AS 421 Non-stop Boeing 737-800 (73H) 4:47 Effective 2024-11-22 through 2024-11-27
Fri,Sun 19:13 Chicago O'Hare (ORD) 2 22:00 Seattle-Tacoma (SEA)
AS 421 Non-stop Boeing 737-900 (739) 4:47 Effective 2024-11-24 through 2024-12-01
Mon,Tue 19:13 Chicago O'Hare (ORD) 2 22:00 Seattle-Tacoma (SEA)
AS 421 Non-stop Boeing 737 MAX 9 (7M9) 4:47 Effective 2024-11-25 through 2024-11-26
Mon 19:13 Chicago O'Hare (ORD) 2 22:00 Seattle-Tacoma (SEA)
AS 421 Non-stop Boeing 737-800 (73H) 4:47 Operates only on 2024-12-02
Thu 19:14 Chicago O'Hare (ORD) 2 22:00 Seattle-Tacoma (SEA)
AS 421 Non-stop Boeing 737 MAX 9 (7M9) 4:46 Operates only on 2024-12-05
Mon,Thu,Fri,Sun 19:14 Chicago O'Hare (ORD) 2 22:00 Seattle-Tacoma (SEA)
AS 421 Non-stop Boeing 737-800 (73H) 4:46 Effective 2024-12-06 through 2024-12-12
Mon,Fri,Sun 19:14 Chicago O'Hare (ORD) 2 22:00 Seattle-Tacoma (SEA)
AS 421 Non-stop Boeing 737-900 (739) 4:46 Effective 2024-12-13 through 2024-12-16
Thu 19:16 Chicago O'Hare (ORD) 2 22:00 Seattle-Tacoma (SEA)
AS 421 Non-stop Boeing 737 (73J) 4:44 Effective 2024-10-03 through 2024-10-10
Mon,Fri,Sun 19:16 Chicago O'Hare (ORD) 2 22:00 Seattle-Tacoma (SEA)
AS 421 Non-stop Boeing 737 MAX 9 (7M9) 4:44 Effective 2024-10-04 through 2024-10-07
Fri 19:16 Chicago O'Hare (ORD) 2 22:00 Seattle-Tacoma (SEA)
AS 421 Non-stop Boeing 737-800 (73H) 4:44 Operates only on 2024-10-11
Mon,Thu,Fri,Sun 19:16 Chicago O'Hare (ORD) 2 22:00 Seattle-Tacoma (SEA)
AS 421 Non-stop Boeing 737 MAX 9 (7M9) 4:44 Effective 2024-10-13 through 2024-10-21
Thu 19:16 Chicago O'Hare (ORD) 2 22:00 Seattle-Tacoma (SEA)
AS 421 Non-stop Boeing 737 (73J) 4:44 Operates only on 2024-10-24
Fri 19:16 Chicago O'Hare (ORD) 2 22:00 Seattle-Tacoma (SEA)
AS 421 Non-stop Boeing 737 MAX 9 (7M9) 4:44 Operates only on 2024-10-25
Sun 19:19 Chicago O'Hare (ORD) 2 22:00 Seattle-Tacoma (SEA)
AS 421 Non-stop Boeing 737-800 (73H) 4:41 Operates only on 2024-10-27
Mon 19:19 Chicago O'Hare (ORD) 2 22:00 Seattle-Tacoma (SEA)
AS 421 Non-stop Boeing 737 (73J) 4:41 Operates only on 2024-10-28
Mon,Fri 19:19 Chicago O'Hare (ORD) 2 22:00 Seattle-Tacoma (SEA)
AS 421 Non-stop Boeing 737 MAX 9 (7M9) 4:41 Effective 2024-11-01 through 2024-11-04
Thu,Fri,Sun 19:19 Chicago O'Hare (ORD) 2 22:00 Seattle-Tacoma (SEA)
AS 421 Non-stop Boeing 737-900 (739) 4:41 Effective 2024-11-03 through 2024-11-21
Mon 19:19 Chicago O'Hare (ORD) 2 22:00 Seattle-Tacoma (SEA)
AS 421 Non-stop Boeing 737 MAX 9 (7M9) 4:41 Effective 2024-11-11 through 2024-11-18
Mon,Thu,Sun 19:26 Chicago O'Hare (ORD) 2 22:00 Seattle-Tacoma (SEA)
AS 421 Non-stop Boeing 737 (73J) 4:34 Valid until 2024-09-01
Mon,Fri 19:26 Chicago O'Hare (ORD) 2 22:00 Seattle-Tacoma (SEA)
AS 421 Non-stop Boeing 737 MAX 9 (7M9) 4:34 Valid until 2024-09-06
Thu,Sun 19:26 Chicago O'Hare (ORD) 2 22:00 Seattle-Tacoma (SEA)
AS 421 Non-stop Boeing 737 (73J) 4:34 Effective 2024-09-05 through 2024-09-08
Mon 19:26 Chicago O'Hare (ORD) 2 22:00 Seattle-Tacoma (SEA)
AS 421 Non-stop Boeing 737-900 (739) 4:34 Operates only on 2024-09-09
Thu 19:26 Chicago O'Hare (ORD) 2 22:00 Seattle-Tacoma (SEA)
AS 421 Non-stop Boeing 737 MAX 9 (7M9) 4:34 Effective 2024-09-12 through 2024-09-19
Mon,Fri,Sun 19:26 Chicago O'Hare (ORD) 2 22:00 Seattle-Tacoma (SEA)
AS 421 Non-stop Boeing 737 (73J) 4:34 Effective 2024-09-13 through 2024-09-16
Thu,Fri 19:26 Chicago O'Hare (ORD) 2 22:00 Seattle-Tacoma (SEA)
AS 421 Non-stop Boeing 737 MAX 9 (7M9) 4:34 Effective 2024-09-20 through 2024-09-27
Mon,Sun 19:26 Chicago O'Hare (ORD) 2 22:00 Seattle-Tacoma (SEA)
AS 421 Non-stop Boeing 737 (73J) 4:34 Effective 2024-09-22 through 2024-09-30
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Alaska Airlines flight AS 421:
Chicago O'Hare - Seattle-Tacoma
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Alaska Airlines AS421
18:30
Los Angeles (LAX) 6

20:52
Portland (PDX)
Effective from 2025-03-19
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:22, non-stop
Boeing 737 (73J)
Alaska Airlines AS421
19:07
Chicago O'Hare (ORD) 2

22:00
Seattle-Tacoma (SEA)
Effective 2024-12-19 through 2025-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:53, non-stop
Boeing 737 (73J)
Alaska Airlines AS421
19:12
Chicago O'Hare (ORD) 2

21:59
Seattle-Tacoma (SEA)
Operates only on 2024-11-23
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:47, non-stop
Boeing 737 MAX 9 (7M9)
Alaska Airlines AS421
19:12
Chicago O'Hare (ORD) 2

21:59
Seattle-Tacoma (SEA)
Operates only on 2024-11-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:47, non-stop
Boeing 737-800 (73H)
Alaska Airlines AS421
19:13
Chicago O'Hare (ORD) 2

22:00
Seattle-Tacoma (SEA)
Effective 2024-11-22 through 2024-11-27
Mon
-
Tue
-
Wed
Thu
-
Fri
Sat
-
Sun
-
Duration: 4:47, non-stop
Boeing 737-800 (73H)
Alaska Airlines AS421
19:13
Chicago O'Hare (ORD) 2

22:00
Seattle-Tacoma (SEA)
Effective 2024-11-24 through 2024-12-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 4:47, non-stop
Boeing 737-900 (739)
Alaska Airlines AS421
19:13
Chicago O'Hare (ORD) 2

22:00
Seattle-Tacoma (SEA)
Effective 2024-11-25 through 2024-11-26
Mon
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 4:47, non-stop
Boeing 737 MAX 9 (7M9)
Alaska Airlines AS421
19:13
Chicago O'Hare (ORD) 2

22:00
Seattle-Tacoma (SEA)
Operates only on 2024-12-02
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 4:47, non-stop
Boeing 737-800 (73H)
Alaska Airlines AS421
19:14
Chicago O'Hare (ORD) 2

22:00
Seattle-Tacoma (SEA)
Operates only on 2024-12-05
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 4:46, non-stop
Boeing 737 MAX 9 (7M9)
Alaska Airlines AS421
19:14
Chicago O'Hare (ORD) 2

22:00
Seattle-Tacoma (SEA)
Effective 2024-12-06 through 2024-12-12
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 4:46, non-stop
Boeing 737-800 (73H)
Alaska Airlines AS421
19:14
Chicago O'Hare (ORD) 2

22:00
Seattle-Tacoma (SEA)
Effective 2024-12-13 through 2024-12-16
Mon
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 4:46, non-stop
Boeing 737-900 (739)
Alaska Airlines AS421
19:16
Chicago O'Hare (ORD) 2

22:00
Seattle-Tacoma (SEA)
Effective 2024-10-03 through 2024-10-10
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 4:44, non-stop
Boeing 737 (73J)
Alaska Airlines AS421
19:16
Chicago O'Hare (ORD) 2

22:00
Seattle-Tacoma (SEA)
Effective 2024-10-04 through 2024-10-07
Mon
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 4:44, non-stop
Boeing 737 MAX 9 (7M9)
Alaska Airlines AS421
19:16
Chicago O'Hare (ORD) 2

22:00
Seattle-Tacoma (SEA)
Operates only on 2024-10-11
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 4:44, non-stop
Boeing 737-800 (73H)
Alaska Airlines AS421
19:16
Chicago O'Hare (ORD) 2

22:00
Seattle-Tacoma (SEA)
Effective 2024-10-13 through 2024-10-21
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 4:44, non-stop
Boeing 737 MAX 9 (7M9)
Alaska Airlines AS421
19:16
Chicago O'Hare (ORD) 2

22:00
Seattle-Tacoma (SEA)
Operates only on 2024-10-24
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 4:44, non-stop
Boeing 737 (73J)
Alaska Airlines AS421
19:16
Chicago O'Hare (ORD) 2

22:00
Seattle-Tacoma (SEA)
Operates only on 2024-10-25
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 4:44, non-stop
Boeing 737 MAX 9 (7M9)
Alaska Airlines AS421
19:19
Chicago O'Hare (ORD) 2

22:00
Seattle-Tacoma (SEA)
Operates only on 2024-10-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 4:41, non-stop
Boeing 737-800 (73H)
Alaska Airlines AS421
19:19
Chicago O'Hare (ORD) 2

22:00
Seattle-Tacoma (SEA)
Operates only on 2024-10-28
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 4:41, non-stop
Boeing 737 (73J)
Alaska Airlines AS421
19:19
Chicago O'Hare (ORD) 2

22:00
Seattle-Tacoma (SEA)
Effective 2024-11-01 through 2024-11-04
Mon
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 4:41, non-stop
Boeing 737 MAX 9 (7M9)
Alaska Airlines AS421
19:19
Chicago O'Hare (ORD) 2

22:00
Seattle-Tacoma (SEA)
Effective 2024-11-03 through 2024-11-21
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 4:41, non-stop
Boeing 737-900 (739)
Alaska Airlines AS421
19:19
Chicago O'Hare (ORD) 2

22:00
Seattle-Tacoma (SEA)
Effective 2024-11-11 through 2024-11-18
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 4:41, non-stop
Boeing 737 MAX 9 (7M9)
Alaska Airlines AS421
19:26
Chicago O'Hare (ORD) 2

22:00
Seattle-Tacoma (SEA)
Valid until 2024-09-01
Mon
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
Duration: 4:34, non-stop
Boeing 737 (73J)
Alaska Airlines AS421
19:26
Chicago O'Hare (ORD) 2

22:00
Seattle-Tacoma (SEA)
Valid until 2024-09-06
Mon
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 4:34, non-stop
Boeing 737 MAX 9 (7M9)
Alaska Airlines AS421
19:26
Chicago O'Hare (ORD) 2

22:00
Seattle-Tacoma (SEA)
Effective 2024-09-05 through 2024-09-08
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
Duration: 4:34, non-stop
Boeing 737 (73J)
Alaska Airlines AS421
19:26
Chicago O'Hare (ORD) 2

22:00
Seattle-Tacoma (SEA)
Operates only on 2024-09-09
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 4:34, non-stop
Boeing 737-900 (739)
Alaska Airlines AS421
19:26
Chicago O'Hare (ORD) 2

22:00
Seattle-Tacoma (SEA)
Effective 2024-09-12 through 2024-09-19
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 4:34, non-stop
Boeing 737 MAX 9 (7M9)
Alaska Airlines AS421
19:26
Chicago O'Hare (ORD) 2

22:00
Seattle-Tacoma (SEA)
Effective 2024-09-13 through 2024-09-16
Mon
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 4:34, non-stop
Boeing 737 (73J)
Alaska Airlines AS421
19:26
Chicago O'Hare (ORD) 2

22:00
Seattle-Tacoma (SEA)
Effective 2024-09-20 through 2024-09-27
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 4:34, non-stop
Boeing 737 MAX 9 (7M9)
Alaska Airlines AS421
19:26
Chicago O'Hare (ORD) 2

22:00
Seattle-Tacoma (SEA)
Effective 2024-09-22 through 2024-09-30
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 4:34, non-stop
Boeing 737 (73J)
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  • AS 421 is a domestic flight departing from the Chicago O'Hare airport (ORD) and arriving at Seattle-Tacoma airport (SEA).
  • The flight distance is 1715 miles, or 2760 km.
  • The timezone of the departure airport is UTC-6 , and the timezone of the arrival airport is UTC-8 . Current time at the point of departure is (loading...), and (loading...) at the point of arrival. There is a (loading...) hour time difference between the airports.
  • For direct flights, the flight time varies between 2:22 and 4:53.
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