Flights from Toronto (YTO) to Seattle (SEA) with Star Alliance

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*Prices have been offered for round trips within the last 48 hours and might not be currently available. Not all Star Alliance Member Airlines or all fares/options are shown. Additional baggage fees, payment fees and fees for other optional services may apply. When booking, please check for restrictions on refunds, rebooking and baggage allowance that may apply. Prices may vary depending on the route and flights selected. Routings may include stopovers. Terms and conditions apply.

Weather in Seattle

Saturday

broken clouds

18/01/2025

4°C

18/01/2025

broken clouds

Sunday

sky is clear

19/01/2025

5°C

19/01/2025

sky is clear

Monday

sky is clear

20/01/2025

5°C

20/01/2025

sky is clear

Tuesday

broken clouds

21/01/2025

6°C

21/01/2025

broken clouds

Wednesday

few clouds

22/01/2025

7°C

22/01/2025

few clouds

Thursday

overcast clouds

23/01/2025

8°C

23/01/2025

overcast clouds

Friday

rain and snow

24/01/2025

3°C

24/01/2025

rain and snow

Flight schedules from Toronto to Seattle with Star Alliance member carriers

Please note that the flight schedules of our member carriers are subject to change on short notice. We recommend using our member airlines information page. for the latest flight updates, details on booking flexibility, as well as specific Frequent Flyer Program information.

Outbound (20)

Sort by

Toronto CA
YYZ19:05
5h 25m
No stops
Seattle US
SEA21:30
Toronto - Seattle
Air Canada
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1Air Canada AC 543
  Toronto. CA
  YYZ 19:05
  5h 25m
  2066 Miles
  Seattle. US
  SEA 21:30
  Airbus A220-300 Passenger
  Operated by Air Canada
Toronto CA
YYZ10:00
7h 25m
1 Stop
Seattle US
SEA14:25
Toronto - Seattle
Air Canada
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1Air Canada AC 107
  Toronto. CA
  YYZ 10:00
  5h 11m
  2090 Miles
  Vancouver. CA
  YVR 12:11
  Airbus A321 Passenger
  Operated by Air Canada
2. Flight 2Air Canada AC 8804
  Vancouver. CA
  YVR 13:25
  1h 0m
  127 Miles
  Seattle. US
  SEA 14:25
  De Havilland (Bombardier) DHC-8-400 Dash 8Q Passenger
  Operated by Air Canada
Toronto CA
YYZ16:10
8h 1m
1 Stop
Seattle US
SEA21:11
Toronto - Seattle
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 568
  Toronto. CA
  YYZ 16:10
  4h 2m
  1319 Miles
  Denver. US
  DEN 18:12
  Airbus A319 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 299
  Denver. US
  DEN 19:05
  3h 6m
  1028 Miles
  Seattle. US
  SEA 21:11
  Airbus A321neo
  Operated by United Airlines
Toronto CA
YYZ08:35
8h 20m
1 Stop
Seattle US
SEA13:55
Toronto - Seattle
Star Alliance
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1Air Canada AC 1039
  Toronto. CA
  YYZ 08:35
  3h 53m
  1319 Miles
  Denver. US
  DEN 10:28
  Airbus A220-300 Passenger
  Operated by Air Canada
2. Flight 2United Airlines UA 690
  Denver. US
  DEN 11:50
  3h 5m
  1028 Miles
  Seattle. US
  SEA 13:55
  Boeing 737 MAX 9 Passenger / BBJ MAX 9
  Operated by United Airlines
Toronto CA
YYZ13:05
8h 20m
1 Stop
Seattle US
SEA18:25
Toronto - Seattle
Air Canada
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1Air Canada AC 113
  Toronto. CA
  YYZ 13:05
  5h 11m
  2090 Miles
  Vancouver. CA
  YVR 15:16
  Boeing 737 MAX 8 Passenger / BBJ MAX 8 / Boeing 737 MAX 200
  Operated by Air Canada
2. Flight 2Air Canada AC 8806
  Vancouver. CA
  YVR 17:25
  1h 0m
  127 Miles
  Seattle. US
  SEA 18:25
  De Havilland (Bombardier) DHC-8-400 Dash 8Q Passenger
  Operated by Air Canada
Toronto CA
YYZ08:00
8h 22m
1 Stop
Seattle US
SEA13:22
Toronto - Seattle
Star Alliance
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1Air Canada AC 501
  Toronto. CA
  YYZ 08:00
  1h 57m
  437 Miles
  Chicago. US
  ORD 08:57
  Airbus A220-300 Passenger
  Operated by Air Canada
2. Flight 2United Airlines UA 2849
  Chicago. US
  ORD 10:35
  4h 47m
  1725 Miles
  Seattle. US
  SEA 13:22
  Boeing 737-800 Passenger
  Operated by United Airlines
Toronto CA
YYZ17:30
8h 40m
1 Stop
Seattle US
SEA23:10
Toronto - Seattle
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 3542
  Toronto. CA
  YYZ 17:30
  2h 13m
  437 Miles
  Chicago. US
  ORD 18:43
  Embraer 170
  Operated by United Airlines
2. Flight 2United Airlines UA 2211
  Chicago. US
  ORD 20:21
  4h 49m
  1725 Miles
  Seattle. US
  SEA 23:10
  Airbus A320 Passenger
  Operated by United Airlines
Toronto CA
YYZ14:45
8h 46m
1 Stop
Seattle US
SEA20:31
Toronto - Seattle
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 3637
  Toronto. CA
  YYZ 14:45
  1h 41m
  348 Miles
  Washington. US
  IAD 16:26
  Embraer 175 (Enhanced Winglets)
  Operated by United Airlines
2. Flight 2United Airlines UA 326
  Washington. US
  IAD 17:30
  6h 1m
  2313 Miles
  Seattle. US
  SEA 20:31
  Boeing 737-900 Passenger
  Operated by United Airlines
Toronto CA
YYZ08:30
8h 55m
1 Stop
Seattle US
SEA14:25
Toronto - Seattle
Air Canada
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1Air Canada AC 105
  Toronto. CA
  YYZ 08:30
  5h 0m
  2090 Miles
  Vancouver. CA
  YVR 10:30
  Boeing 787-9
  Operated by Air Canada
2. Flight 2Air Canada AC 8804
  Vancouver. CA
  YVR 13:25
  1h 0m
  127 Miles
  Seattle. US
  SEA 14:25
  De Havilland (Bombardier) DHC-8-400 Dash 8Q Passenger
  Operated by Air Canada
Toronto CA
YYZ12:45
9h 23m
1 Stop
Seattle US
SEA19:08
Toronto - Seattle
Star Alliance
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1Air Canada AC 741
  Toronto. CA
  YYZ 12:45
  5h 41m
  2266 Miles
  San Francisco. US
  SFO 15:26
  Airbus A220-300 Passenger
  Operated by Air Canada
2. Flight 2United Airlines UA 2603
  San Francisco. US
  SFO 16:48
  2h 20m
  683 Miles
  Seattle. US
  SEA 19:08
  Airbus A320 Passenger
  Operated by United Airlines
Toronto CA
YYZ08:00
9h 25m
1 Stop
Seattle US
SEA14:25
Toronto - Seattle
Air Canada
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1Air Canada AC 189
  Toronto. CA
  YYZ 08:00
  5h 4m
  2090 Miles
  Vancouver. CA
  YVR 10:04
  Boeing 777-300ER Passenger
  Operated by Air Canada
2. Flight 2Air Canada AC 8804
  Vancouver. CA
  YVR 13:25
  1h 0m
  127 Miles
  Seattle. US
  SEA 14:25
  De Havilland (Bombardier) DHC-8-400 Dash 8Q Passenger
  Operated by Air Canada
Toronto CA
YYZ14:45
9h 26m
1 Stop
Seattle US
SEA21:11
Toronto - Seattle
Star Alliance
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1Air Canada AC 1041
  Toronto. CA
  YYZ 14:45
  3h 53m
  1319 Miles
  Denver. US
  DEN 16:38
  Airbus A220-300 Passenger
  Operated by Air Canada
2. Flight 2United Airlines UA 299
  Denver. US
  DEN 19:05
  3h 6m
  1028 Miles
  Seattle. US
  SEA 21:11
  Airbus A321neo
  Operated by United Airlines
Toronto CA
YYZ06:52
9h 30m
1 Stop
Seattle US
SEA13:22
Toronto - Seattle
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 3534
  Toronto. CA
  YYZ 06:52
  2h 13m
  437 Miles
  Chicago. US
  ORD 08:05
  Embraer 175 (Enhanced Winglets)
  Operated by United Airlines
2. Flight 2United Airlines UA 2849
  Chicago. US
  ORD 10:35
  4h 47m
  1725 Miles
  Seattle. US
  SEA 13:22
  Boeing 737-800 Passenger
  Operated by United Airlines
Toronto CA
YYZ15:00
10h 0m
1 Stop
Seattle US
SEA22:00
Toronto - Seattle
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 3705
  Toronto. CA
  YYZ 15:00
  1h 41m
  349 Miles
  New York. US
  EWR 16:41
  Embraer 175 (Enhanced Winglets)
  Operated by United Airlines
2. Flight 2United Airlines UA 2044
  New York. US
  EWR 18:40
  6h 20m
  2408 Miles
  Seattle. US
  SEA 22:00
  Boeing 737 MAX 9 Passenger / BBJ MAX 9
  Operated by United Airlines
Toronto CA
YYZ06:30
10h 2m
1 Stop
Seattle US
SEA13:32
Toronto - Seattle
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 565
  Toronto. CA
  YYZ 06:30
  6h 2m
  2266 Miles
  San Francisco. US
  SFO 09:32
  Boeing 737-800 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 2315
  San Francisco. US
  SFO 11:12
  2h 20m
  683 Miles
  Seattle. US
  SEA 13:32
  Airbus A320 Passenger
  Operated by United Airlines
Toronto CA
YYZ15:30
10h 40m
1 Stop
Seattle US
SEA23:10
Toronto - Seattle
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 2364
  Toronto. CA
  YYZ 15:30
  2h 11m
  437 Miles
  Chicago. US
  ORD 16:41
  Airbus A320 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 2211
  Chicago. US
  ORD 20:21
  4h 49m
  1725 Miles
  Seattle. US
  SEA 23:10
  Airbus A320 Passenger
  Operated by United Airlines
Toronto CA
YYZ14:00
11h 0m
1 Stop
Seattle US
SEA22:00
Toronto - Seattle
Star Alliance
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1Air Canada AC 8878
  Toronto. CA
  YYZ 14:00
  1h 48m
  349 Miles
  New York. US
  EWR 15:48
  Embraer 175
  Operated by Air Canada
2. Flight 2United Airlines UA 2044
  New York. US
  EWR 18:40
  6h 20m
  2408 Miles
  Seattle. US
  SEA 22:00
  Boeing 737 MAX 9 Passenger / BBJ MAX 9
  Operated by United Airlines
Toronto CA
YYZ12:15
11h 16m
1 Stop
Seattle US
SEA20:31
Toronto - Seattle
Star Alliance
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1Air Canada AC 8618
  Toronto. CA
  YYZ 12:15
  1h 36m
  348 Miles
  Washington. US
  IAD 13:51
  Embraer 175
  Operated by Air Canada
2. Flight 2United Airlines UA 326
  Washington. US
  IAD 17:30
  6h 1m
  2313 Miles
  Seattle. US
  SEA 20:31
  Boeing 737-900 Passenger
  Operated by United Airlines
Toronto CA
YYZ12:45
11h 35m
1 Stop
Seattle US
SEA21:20
Toronto - Seattle
Star Alliance
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1Air Canada AC 741
  Toronto. CA
  YYZ 12:45
  5h 41m
  2266 Miles
  San Francisco. US
  SFO 15:26
  Airbus A220-300 Passenger
  Operated by Air Canada
2. Flight 2United Airlines UA 2019
  San Francisco. US
  SFO 19:00
  2h 20m
  683 Miles
  Seattle. US
  SEA 21:20
  Boeing 737-800 Passenger
  Operated by United Airlines
Toronto CA
YYZ06:30
12h 15m
1 Stop
Seattle US
SEA15:45
Toronto - Seattle
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 565
  Toronto. CA
  YYZ 06:30
  6h 2m
  2266 Miles
  San Francisco. US
  SFO 09:32
  Boeing 737-800 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 593
  San Francisco. US
  SFO 13:25
  2h 20m
  683 Miles
  Seattle. US
  SEA 15:45
  Boeing 737-800 Passenger
  Operated by United Airlines

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Toronto - Seattle

Toronto - Seattle

Toronto - Seattle

Toronto - Seattle

Toronto - Seattle

Toronto - Seattle

Toronto - Seattle

Toronto - Seattle

Toronto - Seattle

Toronto - Seattle

Toronto - Seattle

Toronto - Seattle

Toronto - Seattle

Toronto - Seattle

Toronto - Seattle

Toronto - Seattle

Toronto - Seattle

Toronto - Seattle

Toronto - Seattle

Toronto - Seattle