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

Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Daily 11:30 Seattle-Tacoma (SEA) 19:10 Toronto Pearson (YYZ) 1
United Airlines UA 8031 Non-stop Boeing 737 MAX 8 (7M8) 4:40 Valid until 2024-09-02
Codeshare flight, operated by Air Canada.(AC 540)
Daily 11:35 Seattle-Tacoma (SEA) 19:08 Toronto Pearson (YYZ) 1
United Airlines UA 8031 Non-stop Airbus A220-300 (223) 4:33 Effective 2024-09-03 through 2024-09-30
Codeshare flight, operated by Air Canada.(AC 540)
Daily 11:35 Seattle-Tacoma (SEA) 19:08 Toronto Pearson (YYZ) 1
United Airlines UA 8031 Non-stop Airbus A320 (320) 4:33 Effective 2024-10-01 through 2024-10-26
Codeshare flight, operated by Air Canada.(AC 540)
Daily 11:35 Seattle-Tacoma (SEA) 19:13 Toronto Pearson (YYZ) 1
United Airlines UA 8031 Non-stop Airbus A220-300 (223) 4:38 Effective 2025-05-01 through 2025-06-16
Codeshare flight, operated by Air Canada.(AC 540)
Daily 11:35 Seattle-Tacoma (SEA) 19:15 Toronto Pearson (YYZ) 1
United Airlines UA 8031 Non-stop Airbus A220-300 (223) 4:40 Effective from 2025-06-17
Codeshare flight, operated by Air Canada.(AC 540)
Daily 06:15 Seattle-Tacoma (SEA) 14:00 Toronto Pearson (YYZ) 1
United Airlines UA 8244 Non-stop Airbus A220-300 (223) 4:45 Effective 2024-10-28 through 2025-04-30
Codeshare flight, operated by Air Canada.(AC 540)
Daily 23:10 Seattle-Tacoma (SEA) 06:50 Toronto Pearson (YYZ) 1
United Airlines UA 8446 Non-stop Boeing 737 MAX 8 (7M8) 4:40 Valid until 2024-09-02
Codeshare flight, operated by Air Canada.(AC 542)
The flight arrives 1 day after departure.
Daily 23:10 Seattle-Tacoma (SEA) 06:43 Toronto Pearson (YYZ) 1
United Airlines UA 8446 Non-stop Airbus A220-300 (223) 4:33 Effective 2024-09-03 through 2024-09-30
Codeshare flight, operated by Air Canada.(AC 542)
The flight arrives 1 day after departure.
Daily 23:10 Seattle-Tacoma (SEA) 06:48 Toronto Pearson (YYZ) 1
United Airlines UA 8446 Non-stop Airbus A220-300 (223) 4:38 Effective 2025-05-01 through 2025-06-16
Codeshare flight, operated by Air Canada.(AC 542)
The flight arrives 1 day after departure.
Daily 23:10 Seattle-Tacoma (SEA) 06:50 Toronto Pearson (YYZ) 1
United Airlines UA 8446 Non-stop Airbus A220-300 (223) 4:40 Effective from 2025-06-17
Codeshare flight, operated by Air Canada.(AC 542)
The flight arrives 1 day after departure.
Daily 23:20 Seattle-Tacoma (SEA) 06:53 Toronto Pearson (YYZ) 1
United Airlines UA 8446 Non-stop Airbus A320 (320) 4:33 Effective 2024-10-01 through 2024-10-26
Codeshare flight, operated by Air Canada.(AC 542)
The flight arrives 1 day after departure.




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United Airlines flights from Seattle-Tacoma (SEA) to Toronto Pearson (YYZ).
Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
United Airlines UA8031
11:30
Seattle-Tacoma (SEA)

19:10
Toronto Pearson (YYZ) 1
Valid until 2024-09-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Air Canada. (AC 540)
Duration: 4:40, non-stop
Boeing 737 MAX 8 (7M8)
United Airlines UA8031
11:35
Seattle-Tacoma (SEA)

19:08
Toronto Pearson (YYZ) 1
Effective 2024-09-03 through 2024-09-30
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Air Canada. (AC 540)
Duration: 4:33, non-stop
Airbus A220-300 (223)
United Airlines UA8031
11:35
Seattle-Tacoma (SEA)

19:08
Toronto Pearson (YYZ) 1
Effective 2024-10-01 through 2024-10-26
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Air Canada. (AC 540)
Duration: 4:33, non-stop
Airbus A320 (320)
United Airlines UA8031
11:35
Seattle-Tacoma (SEA)

19:13
Toronto Pearson (YYZ) 1
Effective 2025-05-01 through 2025-06-16
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Air Canada. (AC 540)
Duration: 4:38, non-stop
Airbus A220-300 (223)
United Airlines UA8031
11:35
Seattle-Tacoma (SEA)

19:15
Toronto Pearson (YYZ) 1
Effective from 2025-06-17
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Air Canada. (AC 540)
Duration: 4:40, non-stop
Airbus A220-300 (223)
United Airlines UA8244
06:15
Seattle-Tacoma (SEA)

14:00
Toronto Pearson (YYZ) 1
Effective 2024-10-28 through 2025-04-30
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Air Canada. (AC 540)
Duration: 4:45, non-stop
Airbus A220-300 (223)
United Airlines UA8446
23:10
Seattle-Tacoma (SEA)

06:50(+1)
Toronto Pearson (YYZ) 1
Valid until 2024-09-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Air Canada. (AC 542)
Duration: 4:40, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
United Airlines UA8446
23:10
Seattle-Tacoma (SEA)

06:43(+1)
Toronto Pearson (YYZ) 1
Effective 2024-09-03 through 2024-09-30
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Air Canada. (AC 542)
Duration: 4:33, non-stop
Airbus A220-300 (223)
The flight arrives 1 day after departure.
United Airlines UA8446
23:10
Seattle-Tacoma (SEA)

06:48(+1)
Toronto Pearson (YYZ) 1
Effective 2025-05-01 through 2025-06-16
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Air Canada. (AC 542)
Duration: 4:38, non-stop
Airbus A220-300 (223)
The flight arrives 1 day after departure.
United Airlines UA8446
23:10
Seattle-Tacoma (SEA)

06:50(+1)
Toronto Pearson (YYZ) 1
Effective from 2025-06-17
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Air Canada. (AC 542)
Duration: 4:40, non-stop
Airbus A220-300 (223)
The flight arrives 1 day after departure.
United Airlines UA8446
23:20
Seattle-Tacoma (SEA)

06:53(+1)
Toronto Pearson (YYZ) 1
Effective 2024-10-01 through 2024-10-26
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Air Canada. (AC 542)
Duration: 4:33, non-stop
Airbus A320 (320)
The flight arrives 1 day after departure.
  • An international route departing from Seattle-Tacoma airport, United States (SEA) and arriving at Toronto Pearson airport, Canada (YYZ).
  • The flight distance is 2053 miles, or 3304 km.
  • The timezone of the departure airport is UTC-8 , and the timezone of the arrival airport is UTC-5 . 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 4:33 and 4:45.
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