Alaska Airlines flights from Toronto Pearson (YYZ) to Seattle-Tacoma (SEA).

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Mon-Thu,Sat,Sun 16:45 Toronto Pearson (YYZ) 3 19:11 Seattle-Tacoma (SEA)
Alaska Airlines AS 391 Non-stop Boeing 737 (73J) 5:26 Valid until 2026-01-04
Mon,Tue,Fri 16:45 Toronto Pearson (YYZ) 3 19:11 Seattle-Tacoma (SEA)
Alaska Airlines AS 391 Non-stop Boeing 737 MAX 9 (7M9) 5:26 Effective 2026-01-02 through 2026-01-06
Wed,Thu,Sat 16:45 Toronto Pearson (YYZ) 3 19:17 Seattle-Tacoma (SEA)
Alaska Airlines AS 391 Non-stop Boeing 737 MAX 9 (7M9) 5:32 Effective 2026-01-07 through 2026-01-17
Mon,Tue,Fri,Sun 16:45 Toronto Pearson (YYZ) 3 19:17 Seattle-Tacoma (SEA)
Alaska Airlines AS 391 Non-stop Boeing 737 (73J) 5:32 Effective 2026-01-09 through 2026-01-16
Tue-Sun 16:45 Toronto Pearson (YYZ) 3 19:17 Seattle-Tacoma (SEA)
Alaska Airlines AS 391 Non-stop Boeing 737 MAX 9 (7M9) 5:32 Effective 2026-01-18 through 2026-01-25
Mon 16:45 Toronto Pearson (YYZ) 3 19:17 Seattle-Tacoma (SEA)
Alaska Airlines AS 391 Non-stop Boeing 737 (73J) 5:32 Effective 2026-01-19 through 2026-01-26
Tue,Fri 16:45 Toronto Pearson (YYZ) 3 19:17 Seattle-Tacoma (SEA)
Alaska Airlines AS 391 Non-stop Boeing 737 (73J) 5:32 Effective 2026-01-27 through 2026-01-30
Mon-Thu,Sat,Sun 16:45 Toronto Pearson (YYZ) 3 19:17 Seattle-Tacoma (SEA)
Alaska Airlines AS 391 Non-stop Boeing 737 MAX 9 (7M9) 5:32 Effective 2026-01-28 through 2026-02-04
Mon,Wed-Fri 16:45 Toronto Pearson (YYZ) 3 19:17 Seattle-Tacoma (SEA)
Alaska Airlines AS 391 Non-stop Boeing 737 (73J) 5:32 Effective 2026-02-05 through 2026-02-11
Tue,Sat,Sun 16:45 Toronto Pearson (YYZ) 3 19:17 Seattle-Tacoma (SEA)
Alaska Airlines AS 391 Non-stop Boeing 737 MAX 9 (7M9) 5:32 Effective 2026-02-07 through 2026-02-10
Wed-Sat 16:45 Toronto Pearson (YYZ) 3 19:18 Seattle-Tacoma (SEA)
Alaska Airlines AS 391 Non-stop Boeing 737 MAX 9 (7M9) 5:33 Effective 2026-02-12 through 2026-03-04
Mon,Tue,Sun 16:45 Toronto Pearson (YYZ) 3 19:18 Seattle-Tacoma (SEA)
Alaska Airlines AS 391 Non-stop Boeing 737 (73J) 5:33 Effective 2026-02-15 through 2026-03-03
Mon,Tue,Thu 16:45 Toronto Pearson (YYZ) 3 19:18 Seattle-Tacoma (SEA)
Alaska Airlines AS 391 Non-stop Boeing 737 (73J) 5:33 Effective 2026-03-05 through 2026-03-12
Wed,Fri-Sun 16:45 Toronto Pearson (YYZ) 3 19:18 Seattle-Tacoma (SEA)
Alaska Airlines AS 391 Non-stop Boeing 737 MAX 9 (7M9) 5:33 Effective 2026-03-06 through 2026-03-14
Tue,Sun 16:45 Toronto Pearson (YYZ) 3 19:18 Seattle-Tacoma (SEA)
Alaska Airlines AS 391 Non-stop Boeing 737 (73J) 5:33 Effective 2026-03-15 through 2026-03-17
Mon 16:45 Toronto Pearson (YYZ) 3 19:18 Seattle-Tacoma (SEA)
Alaska Airlines AS 391 Non-stop Boeing 737 MAX 9 (7M9) 5:33 Operates only on 2026-03-16
Daily 16:45 Toronto Pearson (YYZ) 3 19:05 Seattle-Tacoma (SEA)
Alaska Airlines AS 391 Non-stop Boeing 737 (73J) 5:20 Effective 2026-03-18 through 2026-05-12
Daily 16:45 Toronto Pearson (YYZ) 3 19:04 Seattle-Tacoma (SEA)
Alaska Airlines AS 391 Non-stop Boeing 737 (73J) 5:19 Effective 2026-05-13 through 2026-06-09
Daily 16:45 Toronto Pearson (YYZ) 3 19:13 Seattle-Tacoma (SEA)
Alaska Airlines AS 401 Non-stop Boeing 737 (73J) 5:28 Effective from 2026-06-10
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Alaska Airlines flights from Toronto Pearson (YYZ) to Seattle-Tacoma (SEA).
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Alaska Airlines AS391
16:45
Toronto Pearson (YYZ) 3

19:11
Seattle-Tacoma (SEA)
Valid until 2026-01-04
Mon
Tue
Wed
Thu
Fri
-
Sat
Sun
Duration: 5:26, non-stop
Boeing 737 (73J)
Direct Flights:
Alaska Airlines AS391
16:45
Toronto Pearson (YYZ) 3

19:11
Seattle-Tacoma (SEA)
Effective 2026-01-02 through 2026-01-06
Mon
Tue
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 5:26, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
Alaska Airlines AS391
16:45
Toronto Pearson (YYZ) 3

19:17
Seattle-Tacoma (SEA)
Effective 2026-01-07 through 2026-01-17
Mon
-
Tue
-
Wed
Thu
Fri
-
Sat
Sun
-
Duration: 5:32, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
Alaska Airlines AS391
16:45
Toronto Pearson (YYZ) 3

19:17
Seattle-Tacoma (SEA)
Effective 2026-01-09 through 2026-01-16
Mon
Tue
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 5:32, non-stop
Boeing 737 (73J)
Direct Flights:
Alaska Airlines AS391
16:45
Toronto Pearson (YYZ) 3

19:17
Seattle-Tacoma (SEA)
Effective 2026-01-18 through 2026-01-25
Mon
-
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:32, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
Alaska Airlines AS391
16:45
Toronto Pearson (YYZ) 3

19:17
Seattle-Tacoma (SEA)
Effective 2026-01-19 through 2026-01-26
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 5:32, non-stop
Boeing 737 (73J)
Direct Flights:
Alaska Airlines AS391
16:45
Toronto Pearson (YYZ) 3

19:17
Seattle-Tacoma (SEA)
Effective 2026-01-27 through 2026-01-30
Mon
-
Tue
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 5:32, non-stop
Boeing 737 (73J)
Direct Flights:
Alaska Airlines AS391
16:45
Toronto Pearson (YYZ) 3

19:17
Seattle-Tacoma (SEA)
Effective 2026-01-28 through 2026-02-04
Mon
Tue
Wed
Thu
Fri
-
Sat
Sun
Duration: 5:32, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
Alaska Airlines AS391
16:45
Toronto Pearson (YYZ) 3

19:17
Seattle-Tacoma (SEA)
Effective 2026-02-05 through 2026-02-11
Mon
Tue
-
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 5:32, non-stop
Boeing 737 (73J)
Direct Flights:
Alaska Airlines AS391
16:45
Toronto Pearson (YYZ) 3

19:17
Seattle-Tacoma (SEA)
Effective 2026-02-07 through 2026-02-10
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
Sun
Duration: 5:32, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
Alaska Airlines AS391
16:45
Toronto Pearson (YYZ) 3

19:18
Seattle-Tacoma (SEA)
Effective 2026-02-12 through 2026-03-04
Mon
-
Tue
-
Wed
Thu
Fri
Sat
Sun
-
Duration: 5:33, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
Alaska Airlines AS391
16:45
Toronto Pearson (YYZ) 3

19:18
Seattle-Tacoma (SEA)
Effective 2026-02-15 through 2026-03-03
Mon
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 5:33, non-stop
Boeing 737 (73J)
Direct Flights:
Alaska Airlines AS391
16:45
Toronto Pearson (YYZ) 3

19:18
Seattle-Tacoma (SEA)
Effective 2026-03-05 through 2026-03-12
Mon
Tue
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 5:33, non-stop
Boeing 737 (73J)
Direct Flights:
Alaska Airlines AS391
16:45
Toronto Pearson (YYZ) 3

19:18
Seattle-Tacoma (SEA)
Effective 2026-03-06 through 2026-03-14
Mon
-
Tue
-
Wed
Thu
-
Fri
Sat
Sun
Duration: 5:33, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
Alaska Airlines AS391
16:45
Toronto Pearson (YYZ) 3

19:18
Seattle-Tacoma (SEA)
Effective 2026-03-15 through 2026-03-17
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 5:33, non-stop
Boeing 737 (73J)
Direct Flights:
Alaska Airlines AS391
16:45
Toronto Pearson (YYZ) 3

19:18
Seattle-Tacoma (SEA)
Operates only on 2026-03-16
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 5:33, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
Alaska Airlines AS391
16:45
Toronto Pearson (YYZ) 3

19:05
Seattle-Tacoma (SEA)
Effective 2026-03-18 through 2026-05-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:20, non-stop
Boeing 737 (73J)
Direct Flights:
Alaska Airlines AS391
16:45
Toronto Pearson (YYZ) 3

19:04
Seattle-Tacoma (SEA)
Effective 2026-05-13 through 2026-06-09
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:19, non-stop
Boeing 737 (73J)
Direct Flights:
Alaska Airlines AS401
16:45
Toronto Pearson (YYZ) 3

19:13
Seattle-Tacoma (SEA)
Effective from 2026-06-10
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:28, non-stop
Boeing 737 (73J)
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Parallax here YYZ-SEA
  • An international route departing from Toronto Pearson airport, Canada (YYZ) and arriving at Seattle-Tacoma airport, United States (SEA).
  • The flight distance is 2053 miles, or 3304 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 5:19 and 5:33.
All YYZ-SEA flights
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