Alaska Airlines flight AS 543: Dallas Fort Worth - Seattle-Tacoma

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Daily 06:00 Dallas Fort Worth (DFW) E 08:18 Seattle-Tacoma (SEA)
AS 543 Non-stop Boeing 737 (73J) 4:18 Effective 2026-05-13 through 2026-06-09
Thu 09:00 Dallas Fort Worth (DFW) E 11:40 Seattle-Tacoma (SEA)
AS 543 Non-stop Boeing 737 MAX 9 (7M9) 4:40 Operates only on 2026-02-12
Daily 09:00 Dallas Fort Worth (DFW) E 11:40 Seattle-Tacoma (SEA)
AS 543 Non-stop Boeing 737 (73J) 4:40 Effective 2026-02-13 through 2026-03-02
Tue,Sat 09:00 Dallas Fort Worth (DFW) E 11:40 Seattle-Tacoma (SEA)
AS 543 Non-stop Boeing 737-800 (73H) 4:40 Effective 2026-03-03 through 2026-03-07
Wed,Sun 09:00 Dallas Fort Worth (DFW) E 11:40 Seattle-Tacoma (SEA)
AS 543 Non-stop Boeing 737 MAX 9 (7M9) 4:40 Effective 2026-03-04 through 2026-03-08
Mon-Fri 09:00 Dallas Fort Worth (DFW) E 11:40 Seattle-Tacoma (SEA)
AS 543 Non-stop Boeing 737 (73J) 4:40 Effective 2026-03-05 through 2026-03-13
Mon,Tue,Sat,Sun 09:00 Dallas Fort Worth (DFW) E 11:40 Seattle-Tacoma (SEA)
AS 543 Non-stop Boeing 737 (73J) 4:40 Effective 2026-03-14 through 2026-03-17
Mon-Wed,Fri,Sun 09:20 Dallas Fort Worth (DFW) E 11:59 Seattle-Tacoma (SEA)
AS 543 Non-stop Boeing 737 (73J) 4:39 Valid until 2026-01-06
Thu 09:20 Dallas Fort Worth (DFW) E 11:59 Seattle-Tacoma (SEA)
AS 543 Non-stop Boeing 737 MAX 9 (7M9) 4:39 Operates only on 2026-01-01
Sat 09:20 Dallas Fort Worth (DFW) E 11:59 Seattle-Tacoma (SEA)
AS 543 Non-stop Boeing 737-800 (73H) 4:39 Operates only on 2026-01-03
Mon,Wed-Sun 10:00 Dallas Fort Worth (DFW) E 12:39 Seattle-Tacoma (SEA)
AS 543 Non-stop Boeing 737 (73J) 4:39 Effective 2026-01-07 through 2026-02-01
Tue 10:00 Dallas Fort Worth (DFW) E 12:39 Seattle-Tacoma (SEA)
AS 543 Non-stop Boeing 737 MAX 9 (7M9) 4:39 Effective 2026-01-13 through 2026-01-27
Mon,Tue 10:00 Dallas Fort Worth (DFW) E 12:39 Seattle-Tacoma (SEA)
AS 543 Non-stop Boeing 737 MAX 9 (7M9) 4:39 Effective 2026-02-02 through 2026-02-03
Daily 10:00 Dallas Fort Worth (DFW) E 12:39 Seattle-Tacoma (SEA)
AS 543 Non-stop Boeing 737 (73J) 4:39 Effective 2026-02-04 through 2026-02-11
Wed 10:00 Dallas Fort Worth (DFW) E 12:32 Seattle-Tacoma (SEA)
AS 543 Non-stop Boeing 737 (73J) 4:32 Operates only on 2026-03-18
Daily 10:00 Dallas Fort Worth (DFW) E 12:24 Seattle-Tacoma (SEA)
AS 543 Non-stop Boeing 737 (73J) 4:24 Effective 2026-03-19 through 2026-05-12
Daily 13:00 Dallas Fort Worth (DFW) E 15:20 Seattle-Tacoma (SEA)
AS 543 Non-stop Boeing 737 (73J) 4:20 Effective 2026-06-10 through 2026-10-02
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Alaska Airlines flight AS 543:
Dallas Fort Worth - Seattle-Tacoma
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Alaska Airlines AS543
06:00
Dallas Fort Worth (DFW) E

08:18
Seattle-Tacoma (SEA)
Effective 2026-05-13 through 2026-06-09
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:18, non-stop
Boeing 737 (73J)
Direct Flights:
Alaska Airlines AS543
09:00
Dallas Fort Worth (DFW) E

11:40
Seattle-Tacoma (SEA)
Operates only on 2026-02-12
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 4:40, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
Alaska Airlines AS543
09:00
Dallas Fort Worth (DFW) E

11:40
Seattle-Tacoma (SEA)
Effective 2026-02-13 through 2026-03-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:40, non-stop
Boeing 737 (73J)
Direct Flights:
Alaska Airlines AS543
09:00
Dallas Fort Worth (DFW) E

11:40
Seattle-Tacoma (SEA)
Effective 2026-03-03 through 2026-03-07
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:40, non-stop
Boeing 737-800 (73H)
Direct Flights:
Alaska Airlines AS543
09:00
Dallas Fort Worth (DFW) E

11:40
Seattle-Tacoma (SEA)
Effective 2026-03-04 through 2026-03-08
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
Duration: 4:40, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
Alaska Airlines AS543
09:00
Dallas Fort Worth (DFW) E

11:40
Seattle-Tacoma (SEA)
Effective 2026-03-05 through 2026-03-13
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 4:40, non-stop
Boeing 737 (73J)
Direct Flights:
Alaska Airlines AS543
09:00
Dallas Fort Worth (DFW) E

11:40
Seattle-Tacoma (SEA)
Effective 2026-03-14 through 2026-03-17
Mon
Tue
Wed
-
Thu
-
Fri
-
Sat
Sun
Duration: 4:40, non-stop
Boeing 737 (73J)
Direct Flights:
Alaska Airlines AS543
09:20
Dallas Fort Worth (DFW) E

11:59
Seattle-Tacoma (SEA)
Valid until 2026-01-06
Mon
Tue
Wed
Thu
-
Fri
Sat
-
Sun
Duration: 4:39, non-stop
Boeing 737 (73J)
Direct Flights:
Alaska Airlines AS543
09:20
Dallas Fort Worth (DFW) E

11:59
Seattle-Tacoma (SEA)
Operates only on 2026-01-01
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 4:39, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
Alaska Airlines AS543
09:20
Dallas Fort Worth (DFW) E

11:59
Seattle-Tacoma (SEA)
Operates only on 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:39, non-stop
Boeing 737-800 (73H)
Direct Flights:
Alaska Airlines AS543
10:00
Dallas Fort Worth (DFW) E

12:39
Seattle-Tacoma (SEA)
Effective 2026-01-07 through 2026-02-01
Mon
Tue
-
Wed
Thu
Fri
Sat
Sun
Duration: 4:39, non-stop
Boeing 737 (73J)
Direct Flights:
Alaska Airlines AS543
10:00
Dallas Fort Worth (DFW) E

12:39
Seattle-Tacoma (SEA)
Effective 2026-01-13 through 2026-01-27
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 4:39, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
Alaska Airlines AS543
10:00
Dallas Fort Worth (DFW) E

12:39
Seattle-Tacoma (SEA)
Effective 2026-02-02 through 2026-02-03
Mon
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 4:39, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
Alaska Airlines AS543
10:00
Dallas Fort Worth (DFW) E

12:39
Seattle-Tacoma (SEA)
Effective 2026-02-04 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:39, non-stop
Boeing 737 (73J)
Direct Flights:
Alaska Airlines AS543
10:00
Dallas Fort Worth (DFW) E

12:32
Seattle-Tacoma (SEA)
Operates only on 2026-03-18
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 4:32, non-stop
Boeing 737 (73J)
Direct Flights:
Alaska Airlines AS543
10:00
Dallas Fort Worth (DFW) E

12:24
Seattle-Tacoma (SEA)
Effective 2026-03-19 through 2026-05-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:24, non-stop
Boeing 737 (73J)
Direct Flights:
Alaska Airlines AS543
13:00
Dallas Fort Worth (DFW) E

15:20
Seattle-Tacoma (SEA)
Effective 2026-06-10 through 2026-10-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:20, non-stop
Boeing 737 (73J)
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Parallax here DFW-SEA
  • AS 543 is a domestic flight departing from the Dallas Fort Worth airport (DFW) and arriving at Seattle-Tacoma airport (SEA).
  • The flight distance is 1657 miles, or 2667 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 4:18 and 4:40.
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