Alaska Airlines flight AS 21: New York John F. Kennedy - Seattle-Tacoma

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Mon,Wed-Fri 07:00 New York John F. Kennedy (JFK) 8 10:14 Seattle-Tacoma (SEA)
AS 21 Non-stop Boeing 737 MAX 9 (7M9) 6:14 Valid until 2026-01-05
Tue,Sun 07:00 New York John F. Kennedy (JFK) 8 10:14 Seattle-Tacoma (SEA)
AS 21 Non-stop Boeing 737-800 (73H) 6:14 Valid until 2026-01-04
Sat 07:00 New York John F. Kennedy (JFK) 8 10:14 Seattle-Tacoma (SEA)
AS 21 Non-stop Boeing 737 (73J) 6:14 Operates only on 2026-01-03
Tue 07:00 New York John F. Kennedy (JFK) 8 10:14 Seattle-Tacoma (SEA)
AS 21 Non-stop Boeing 737 MAX 9 (7M9) 6:14 Operates only on 2026-01-06
Tue-Thu 07:00 New York John F. Kennedy (JFK) 8 10:26 Seattle-Tacoma (SEA)
AS 21 Non-stop Boeing 737 MAX 9 (7M9) 6:26 Effective 2026-01-07 through 2026-01-14
Fri 07:00 New York John F. Kennedy (JFK) 8 10:26 Seattle-Tacoma (SEA)
AS 21 Non-stop Boeing 737-800 (73H) 6:26 Effective 2026-01-09 through 2026-01-30
Mon,Thu,Sun 07:00 New York John F. Kennedy (JFK) 8 10:26 Seattle-Tacoma (SEA)
AS 21 Non-stop Boeing 737 (73J) 6:26 Effective 2026-01-11 through 2026-01-18
Mon-Wed 07:00 New York John F. Kennedy (JFK) 8 10:26 Seattle-Tacoma (SEA)
AS 21 Non-stop Boeing 737 MAX 9 (7M9) 6:26 Effective 2026-01-19 through 2026-01-21
Mon,Wed,Thu,Sun 07:00 New York John F. Kennedy (JFK) 8 10:26 Seattle-Tacoma (SEA)
AS 21 Non-stop Boeing 737 (73J) 6:26 Effective 2026-01-22 through 2026-01-29
Mon,Tue 07:00 New York John F. Kennedy (JFK) 8 10:26 Seattle-Tacoma (SEA)
AS 21 Non-stop Boeing 737 MAX 9 (7M9) 6:26 Effective 2026-01-27 through 2026-02-03
Fri,Sun 07:00 New York John F. Kennedy (JFK) 8 10:26 Seattle-Tacoma (SEA)
AS 21 Non-stop Boeing 737-800 (73H) 6:26 Effective 2026-02-01 through 2026-02-06
Tue,Wed,Sun 07:00 New York John F. Kennedy (JFK) 8 10:26 Seattle-Tacoma (SEA)
AS 21 Non-stop Boeing 737 MAX 9 (7M9) 6:26 Effective 2026-02-04 through 2026-02-10
Mon,Thu 07:00 New York John F. Kennedy (JFK) 8 10:26 Seattle-Tacoma (SEA)
AS 21 Non-stop Boeing 737 (73J) 6:26 Effective 2026-02-05 through 2026-02-09
Wed 07:00 New York John F. Kennedy (JFK) 8 10:26 Seattle-Tacoma (SEA)
AS 21 Non-stop Boeing 737-800 (73H) 6:26 Operates only on 2026-02-11
Mon,Thu 07:00 New York John F. Kennedy (JFK) 8 10:28 Seattle-Tacoma (SEA)
AS 21 Non-stop Boeing 737 (73J) 6:28 Effective 2026-02-12 through 2026-03-02
Tue,Fri 07:00 New York John F. Kennedy (JFK) 8 10:28 Seattle-Tacoma (SEA)
AS 21 Non-stop Boeing 737-800 (73H) 6:28 Effective 2026-02-13 through 2026-03-17
Wed,Sat,Sun 07:00 New York John F. Kennedy (JFK) 8 10:28 Seattle-Tacoma (SEA)
AS 21 Non-stop Boeing 737 MAX 9 (7M9) 6:28 Effective 2026-02-14 through 2026-03-04
Thu,Sat 07:00 New York John F. Kennedy (JFK) 8 10:28 Seattle-Tacoma (SEA)
AS 21 Non-stop Boeing 737 MAX 9 (7M9) 6:28 Effective 2026-03-05 through 2026-03-14
Mon,Wed,Sun 07:00 New York John F. Kennedy (JFK) 8 10:28 Seattle-Tacoma (SEA)
AS 21 Non-stop Boeing 737 (73J) 6:28 Effective 2026-03-08 through 2026-03-15
Mon 07:00 New York John F. Kennedy (JFK) 8 10:28 Seattle-Tacoma (SEA)
AS 21 Non-stop Boeing 737 MAX 9 (7M9) 6:28 Operates only on 2026-03-16
Daily 07:00 New York John F. Kennedy (JFK) 8 10:15 Seattle-Tacoma (SEA)
AS 21 Non-stop Boeing 737 (73J) 6:15 Effective from 2026-06-10
Daily 16:54 New York John F. Kennedy (JFK) 8 20:00 Seattle-Tacoma (SEA)
AS 21 Non-stop Boeing 737 (73J) 6:06 Effective 2026-05-13 through 2026-06-09
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Alaska Airlines flight AS 21:
New York John F. Kennedy - Seattle-Tacoma
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Alaska Airlines AS21
07:00
New York John F. Kennedy (JFK) 8

10:14
Seattle-Tacoma (SEA)
Valid until 2026-01-05
Mon
Tue
-
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 6:14, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
Alaska Airlines AS21
07:00
New York John F. Kennedy (JFK) 8

10:14
Seattle-Tacoma (SEA)
Valid until 2026-01-04
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 6:14, non-stop
Boeing 737-800 (73H)
Direct Flights:
Alaska Airlines AS21
07:00
New York John F. Kennedy (JFK) 8

10:14
Seattle-Tacoma (SEA)
Operates only on 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 6:14, non-stop
Boeing 737 (73J)
Direct Flights:
Alaska Airlines AS21
07:00
New York John F. Kennedy (JFK) 8

10:14
Seattle-Tacoma (SEA)
Operates only on 2026-01-06
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 6:14, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
Alaska Airlines AS21
07:00
New York John F. Kennedy (JFK) 8

10:26
Seattle-Tacoma (SEA)
Effective 2026-01-07 through 2026-01-14
Mon
-
Tue
Wed
Thu
Fri
-
Sat
-
Sun
-
Duration: 6:26, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
Alaska Airlines AS21
07:00
New York John F. Kennedy (JFK) 8

10:26
Seattle-Tacoma (SEA)
Effective 2026-01-09 through 2026-01-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 6:26, non-stop
Boeing 737-800 (73H)
Direct Flights:
Alaska Airlines AS21
07:00
New York John F. Kennedy (JFK) 8

10:26
Seattle-Tacoma (SEA)
Effective 2026-01-11 through 2026-01-18
Mon
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
Duration: 6:26, non-stop
Boeing 737 (73J)
Direct Flights:
Alaska Airlines AS21
07:00
New York John F. Kennedy (JFK) 8

10:26
Seattle-Tacoma (SEA)
Effective 2026-01-19 through 2026-01-21
Mon
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 6:26, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
Alaska Airlines AS21
07:00
New York John F. Kennedy (JFK) 8

10:26
Seattle-Tacoma (SEA)
Effective 2026-01-22 through 2026-01-29
Mon
Tue
-
Wed
Thu
Fri
-
Sat
-
Sun
Duration: 6:26, non-stop
Boeing 737 (73J)
Direct Flights:
Alaska Airlines AS21
07:00
New York John F. Kennedy (JFK) 8

10:26
Seattle-Tacoma (SEA)
Effective 2026-01-27 through 2026-02-03
Mon
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 6:26, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
Alaska Airlines AS21
07:00
New York John F. Kennedy (JFK) 8

10:26
Seattle-Tacoma (SEA)
Effective 2026-02-01 through 2026-02-06
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 6:26, non-stop
Boeing 737-800 (73H)
Direct Flights:
Alaska Airlines AS21
07:00
New York John F. Kennedy (JFK) 8

10:26
Seattle-Tacoma (SEA)
Effective 2026-02-04 through 2026-02-10
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
Duration: 6:26, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
Alaska Airlines AS21
07:00
New York John F. Kennedy (JFK) 8

10:26
Seattle-Tacoma (SEA)
Effective 2026-02-05 through 2026-02-09
Mon
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 6:26, non-stop
Boeing 737 (73J)
Direct Flights:
Alaska Airlines AS21
07:00
New York John F. Kennedy (JFK) 8

10:26
Seattle-Tacoma (SEA)
Operates only on 2026-02-11
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 6:26, non-stop
Boeing 737-800 (73H)
Direct Flights:
Alaska Airlines AS21
07:00
New York John F. Kennedy (JFK) 8

10:28
Seattle-Tacoma (SEA)
Effective 2026-02-12 through 2026-03-02
Mon
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 6:28, non-stop
Boeing 737 (73J)
Direct Flights:
Alaska Airlines AS21
07:00
New York John F. Kennedy (JFK) 8

10:28
Seattle-Tacoma (SEA)
Effective 2026-02-13 through 2026-03-17
Mon
-
Tue
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 6:28, non-stop
Boeing 737-800 (73H)
Direct Flights:
Alaska Airlines AS21
07:00
New York John F. Kennedy (JFK) 8

10:28
Seattle-Tacoma (SEA)
Effective 2026-02-14 through 2026-03-04
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
Sun
Duration: 6:28, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
Alaska Airlines AS21
07:00
New York John F. Kennedy (JFK) 8

10:28
Seattle-Tacoma (SEA)
Effective 2026-03-05 through 2026-03-14
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
Sun
-
Duration: 6:28, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
Alaska Airlines AS21
07:00
New York John F. Kennedy (JFK) 8

10:28
Seattle-Tacoma (SEA)
Effective 2026-03-08 through 2026-03-15
Mon
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
Duration: 6:28, non-stop
Boeing 737 (73J)
Direct Flights:
Alaska Airlines AS21
07:00
New York John F. Kennedy (JFK) 8

10:28
Seattle-Tacoma (SEA)
Operates only on 2026-03-16
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 6:28, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
Alaska Airlines AS21
07:00
New York John F. Kennedy (JFK) 8

10:15
Seattle-Tacoma (SEA)
Effective from 2026-06-10
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 6:15, non-stop
Boeing 737 (73J)
Direct Flights:
Alaska Airlines AS21
16:54
New York John F. Kennedy (JFK) 8

20:00
Seattle-Tacoma (SEA)
Effective 2026-05-13 through 2026-06-09
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 6:06, non-stop
Boeing 737 (73J)
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Parallax here JFK-SEA
  • AS 21 is a domestic flight departing from the New York John F. Kennedy airport (JFK) and arriving at Seattle-Tacoma airport (SEA).
  • The flight distance is 2414 miles, or 3884 km.
  • The timezone of the departure airport is UTC-5 , 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 6:06 and 6:28.
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