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

Start your journey with just one click

Airline

1/5

Seattle

toToronto

SEA-YYZ

April 18, 2025

April 25, 2025

Sold byUnited Airlines

From

332USD Price subject to changes

Viewed:36 minutes ago

Roundtrip

Economy

2/5

Seattle

toToronto

SEA-YYZ

April 18, 2025

April 25, 2025

Sold byUnited Airlines

From

418USD Price subject to changes

Viewed:36 minutes ago

Roundtrip

Economy

3/5

Seattle

toToronto

SEA-YYZ

April 18, 2025

April 25, 2025

Sold byUnited Airlines

From

622USD Price subject to changes

Viewed:36 minutes ago

Roundtrip

Economy

4/5

Seattle

toToronto

SEA-YYZ

April 18, 2025

April 25, 2025

Sold byUnited Airlines

From

860USD Price subject to changes

Viewed:36 minutes ago

Roundtrip

Economy

*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 Toronto

Tuesday

snow

28/01/2025

-9°C

28/01/2025

snow

Wednesday

light snow

29/01/2025

-5°C

29/01/2025

light snow

Thursday

overcast clouds

30/01/2025

-3°C

30/01/2025

overcast clouds

Friday

snow

31/01/2025

-1°C

31/01/2025

snow

Saturday

broken clouds

01/02/2025

-5°C

01/02/2025

broken clouds

Sunday

rain and snow

02/02/2025

-1°C

02/02/2025

rain and snow

Monday

overcast clouds

03/02/2025

-3°C

03/02/2025

overcast clouds

Flight schedules from Seattle to Toronto 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 (28)

Sort by

Seattle US
SEA06:05
4h 45m
No stops
Toronto CA
YYZ13:50
Seattle - Toronto
Air Canada
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1Air Canada AC 540
  Seattle. US
  SEA 06:05
  4h 45m
  2066 Miles
  Toronto. CA
  YYZ 13:50
  Airbus A220-300 Passenger
  Operated by Air Canada
Seattle US
SEA07:00
6h 46m
1 Stop
Toronto CA
YYZ16:46
Seattle - Toronto
Star Alliance
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 1373
  Seattle. US
  SEA 07:00
  4h 6m
  1725 Miles
  Chicago. US
  ORD 13:06
  Boeing 737-800 Passenger
  Operated by United Airlines
2. Flight 2Air Canada AC 504
  Chicago. US
  ORD 14:05
  1h 41m
  437 Miles
  Toronto. CA
  YYZ 16:46
  Airbus A220-300 Passenger
  Operated by Air Canada
Seattle US
SEA15:05
6h 52m
1 Stop
Toronto CA
YYZ00:57
+1 day/s
Seattle - Toronto
Air Canada
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1Air Canada AC 8807
  Seattle. US
  SEA 15:05
  1h 10m
  127 Miles
  Vancouver. CA
  YVR 16:15
  Canadair (Bombardier) Regional Jet 900 and Challenger 890
  Operated by Air Canada
2. Flight 2Air Canada AC 122
  Vancouver. CA
  YVR 17:25
  4h 32m
  2090 Miles
  Toronto. CA
  YYZ 00:57
  Boeing 737 MAX 8 Passenger / BBJ MAX 8 / Boeing 737 MAX 200
  Operated by Air Canada
Seattle US
SEA23:59
6h 59m
1 Stop
Toronto CA
YYZ09:58
+1 day/s
Seattle - Toronto
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 2019
  Seattle. US
  SEA 23:59
  4h 1m
  1725 Miles
  Chicago. US
  ORD 06:00
  Boeing 737 MAX 8 Passenger / BBJ MAX 8 / Boeing 737 MAX 200
  Operated by United Airlines
2. Flight 2United Airlines UA 3695
  Chicago. US
  ORD 07:05
  1h 53m
  437 Miles
  Toronto. CA
  YYZ 09:58
  Embraer 170
  Operated by United Airlines
Seattle US
SEA05:00
7h 2m
1 Stop
Toronto CA
YYZ15:02
Seattle - Toronto
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 2269
  Seattle. US
  SEA 05:00
  2h 43m
  1028 Miles
  Denver. US
  DEN 08:43
  Airbus A320 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 1874
  Denver. US
  DEN 09:47
  3h 15m
  1319 Miles
  Toronto. CA
  YYZ 15:02
  Airbus A319 Passenger
  Operated by United Airlines
Seattle US
SEA12:35
7h 17m
1 Stop
Toronto CA
YYZ22:52
Seattle - Toronto
Star Alliance
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 1483
  Seattle. US
  SEA 12:35
  2h 42m
  1028 Miles
  Denver. US
  DEN 16:17
  Boeing 737 MAX 9 Passenger / BBJ MAX 9
  Operated by United Airlines
2. Flight 2Air Canada AC 1038
  Denver. US
  DEN 17:40
  3h 12m
  1319 Miles
  Toronto. CA
  YYZ 22:52
  Airbus A220-300 Passenger
  Operated by Air Canada
Seattle US
SEA11:05
7h 20m
1 Stop
Toronto CA
YYZ21:25
Seattle - Toronto
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 747
  Seattle. US
  SEA 11:05
  4h 5m
  1725 Miles
  Chicago. US
  ORD 17:10
  Boeing 737-800 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 265
  Chicago. US
  ORD 18:28
  1h 57m
  437 Miles
  Toronto. CA
  YYZ 21:25
  Boeing 737-800 Passenger
  Operated by United Airlines
Seattle US
SEA10:35
7h 31m
1 Stop
Toronto CA
YYZ21:06
Seattle - Toronto
Air Canada
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1Air Canada AC 8803
  Seattle. US
  SEA 10:35
  1h 7m
  127 Miles
  Vancouver. CA
  YVR 11:42
  De Havilland (Bombardier) DHC-8-400 Dash 8Q Passenger
  Operated by Air Canada
2. Flight 2Air Canada AC 116
  Vancouver. CA
  YVR 13:30
  4h 36m
  2090 Miles
  Toronto. CA
  YYZ 21:06
  Airbus A321 Passenger
  Operated by Air Canada
Seattle US
SEA10:35
7h 51m
1 Stop
Toronto CA
YYZ21:26
Seattle - Toronto
Air Canada
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1Air Canada AC 8803
  Seattle. US
  SEA 10:35
  1h 7m
  127 Miles
  Vancouver. CA
  YVR 11:42
  De Havilland (Bombardier) DHC-8-400 Dash 8Q Passenger
  Operated by Air Canada
2. Flight 2Air Canada AC 118
  Vancouver. CA
  YVR 14:00
  4h 26m
  2090 Miles
  Toronto. CA
  YYZ 21:26
  Boeing 787-9
  Operated by Air Canada
Seattle US
SEA08:00
7h 57m
1 Stop
Toronto CA
YYZ18:57
Seattle - Toronto
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 1360
  Seattle. US
  SEA 08:00
  5h 6m
  2313 Miles
  Washington. US
  IAD 16:06
  Boeing 737-900 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 3453
  Washington. US
  IAD 17:17
  1h 40m
  348 Miles
  Toronto. CA
  YYZ 18:57
  Embraer 175 (Enhanced Winglets)
  Operated by United Airlines
Seattle US
SEA19:05
8h 4m
1 Stop
Toronto CA
YYZ06:09
+1 day/s
Seattle - Toronto
Air Canada
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1Air Canada AC 8811
  Seattle. US
  SEA 19:05
  1h 11m
  127 Miles
  Vancouver. CA
  YVR 20:16
  Canadair (Bombardier) Regional Jet 900 and Challenger 890
  Operated by Air Canada
2. Flight 2Air Canada AC 124
  Vancouver. CA
  YVR 22:40
  4h 29m
  2090 Miles
  Toronto. CA
  YYZ 06:09
  Boeing 777-300ER Passenger
  Operated by Air Canada
Seattle US
SEA12:50
8h 27m
1 Stop
Toronto CA
YYZ00:17
+1 day/s
Seattle - Toronto
Star Alliance
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 1509
  Seattle. US
  SEA 12:50
  2h 19m
  683 Miles
  San Francisco. US
  SFO 15:09
  Boeing 737-800 Passenger
  Operated by United Airlines
2. Flight 2Air Canada AC 742
  San Francisco. US
  SFO 16:25
  4h 52m
  2266 Miles
  Toronto. CA
  YYZ 00:17
  Airbus A220-300 Passenger
  Operated by Air Canada
Seattle US
SEA05:00
8h 27m
1 Stop
Toronto CA
YYZ16:27
Seattle - Toronto
Star Alliance
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 2269
  Seattle. US
  SEA 05:00
  2h 43m
  1028 Miles
  Denver. US
  DEN 08:43
  Airbus A320 Passenger
  Operated by United Airlines
2. Flight 2Air Canada AC 1040
  Denver. US
  DEN 11:15
  3h 12m
  1319 Miles
  Toronto. CA
  YYZ 16:27
  Airbus A220-300 Passenger
  Operated by Air Canada
Seattle US
SEA07:00
8h 41m
1 Stop
Toronto CA
YYZ18:41
Seattle - Toronto
Star Alliance
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 1373
  Seattle. US
  SEA 07:00
  4h 6m
  1725 Miles
  Chicago. US
  ORD 13:06
  Boeing 737-800 Passenger
  Operated by United Airlines
2. Flight 2Air Canada AC 506
  Chicago. US
  ORD 16:00
  1h 41m
  437 Miles
  Toronto. CA
  YYZ 18:41
  Airbus A220-300 Passenger
  Operated by Air Canada
Seattle US
SEA19:05
8h 47m
1 Stop
Toronto CA
YYZ06:52
+1 day/s
Seattle - Toronto
Air Canada
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1Air Canada AC 8811
  Seattle. US
  SEA 19:05
  1h 11m
  127 Miles
  Vancouver. CA
  YVR 20:16
  Canadair (Bombardier) Regional Jet 900 and Challenger 890
  Operated by Air Canada
2. Flight 2Air Canada AC 126
  Vancouver. CA
  YVR 23:20
  4h 32m
  2090 Miles
  Toronto. CA
  YYZ 06:52
  Boeing 737 MAX 8 Passenger / BBJ MAX 8 / Boeing 737 MAX 200
  Operated by Air Canada
Seattle US
SEA11:05
9h 6m
1 Stop
Toronto CA
YYZ23:11
Seattle - Toronto
Star Alliance
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 747
  Seattle. US
  SEA 11:05
  4h 5m
  1725 Miles
  Chicago. US
  ORD 17:10
  Boeing 737-800 Passenger
  Operated by United Airlines
2. Flight 2Air Canada AC 510
  Chicago. US
  ORD 20:30
  1h 41m
  437 Miles
  Toronto. CA
  YYZ 23:11
  Airbus A220-300 Passenger
  Operated by Air Canada
Seattle US
SEA19:05
9h 11m
1 Stop
Toronto CA
YYZ07:16
+1 day/s
Seattle - Toronto
Air Canada
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1Air Canada AC 8811
  Seattle. US
  SEA 19:05
  1h 11m
  127 Miles
  Vancouver. CA
  YVR 20:16
  Canadair (Bombardier) Regional Jet 900 and Challenger 890
  Operated by Air Canada
2. Flight 2Air Canada AC 128
  Vancouver. CA
  YVR 23:50
  4h 26m
  2090 Miles
  Toronto. CA
  YYZ 07:16
  Airbus A330-300 Passenger
  Operated by Air Canada
Seattle US
SEA07:08
9h 12m
1 Stop
Toronto CA
YYZ19:20
Seattle - Toronto
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 1329
  Seattle. US
  SEA 07:08
  5h 9m
  2408 Miles
  New York. US
  EWR 15:17
  Boeing 737-900 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 3504
  New York. US
  EWR 17:25
  1h 55m
  349 Miles
  Toronto. CA
  YYZ 19:20
  Embraer 175 (Enhanced Winglets)
  Operated by United Airlines
Seattle US
SEA23:17
9h 29m
1 Stop
Toronto CA
YYZ11:46
+1 day/s
Seattle - Toronto
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 341
  Seattle. US
  SEA 23:17
  5h 18m
  2408 Miles
  New York. US
  EWR 07:35
  Boeing 737 MAX 9 Passenger / BBJ MAX 9
  Operated by United Airlines
2. Flight 2United Airlines UA 3555
  New York. US
  EWR 10:00
  1h 46m
  349 Miles
  Toronto. CA
  YYZ 11:46
  Embraer 175 (Enhanced Winglets)
  Operated by United Airlines
Seattle US
SEA23:59
9h 31m
1 Stop
Toronto CA
YYZ12:30
+1 day/s
Seattle - Toronto
Star Alliance
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 2019
  Seattle. US
  SEA 23:59
  4h 1m
  1725 Miles
  Chicago. US
  ORD 06:00
  Boeing 737 MAX 8 Passenger / BBJ MAX 8 / Boeing 737 MAX 200
  Operated by United Airlines
2. Flight 2Air Canada AC 502
  Chicago. US
  ORD 09:50
  1h 40m
  437 Miles
  Toronto. CA
  YYZ 12:30
  Airbus A220-300 Passenger
  Operated by Air Canada
Seattle US
SEA07:00
9h 45m
1 Stop
Toronto CA
YYZ19:45
Seattle - Toronto
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 1373
  Seattle. US
  SEA 07:00
  4h 6m
  1725 Miles
  Chicago. US
  ORD 13:06
  Boeing 737-800 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 5727
  Chicago. US
  ORD 16:51
  1h 54m
  437 Miles
  Toronto. CA
  YYZ 19:45
  Embraer 175 (Enhanced Winglets)
  Operated by United Airlines
Seattle US
SEA07:00
9h 53m
1 Stop
Toronto CA
YYZ19:53
Seattle - Toronto
Star Alliance
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 1403
  Seattle. US
  SEA 07:00
  2h 20m
  683 Miles
  San Francisco. US
  SFO 09:20
  Airbus A320 Passenger
  Operated by United Airlines
2. Flight 2Air Canada AC 740
  San Francisco. US
  SFO 11:55
  4h 58m
  2266 Miles
  Toronto. CA
  YYZ 19:53
  Boeing 737 MAX 8 Passenger / BBJ MAX 8 / Boeing 737 MAX 200
  Operated by Air Canada
Seattle US
SEA07:08
10h 10m
1 Stop
Toronto CA
YYZ20:18
Seattle - Toronto
Star Alliance
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 1329
  Seattle. US
  SEA 07:08
  5h 9m
  2408 Miles
  New York. US
  EWR 15:17
  Boeing 737-900 Passenger
  Operated by United Airlines
2. Flight 2Air Canada AC 8883
  New York. US
  EWR 18:30
  1h 48m
  349 Miles
  Toronto. CA
  YYZ 20:18
  Embraer 175
  Operated by Air Canada
Seattle US
SEA23:17
10h 20m
1 Stop
Toronto CA
YYZ12:37
+1 day/s
Seattle - Toronto
Star Alliance
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 341
  Seattle. US
  SEA 23:17
  5h 18m
  2408 Miles
  New York. US
  EWR 07:35
  Boeing 737 MAX 9 Passenger / BBJ MAX 9
  Operated by United Airlines
2. Flight 2Air Canada AC 8877
  New York. US
  EWR 11:00
  1h 37m
  349 Miles
  Toronto. CA
  YYZ 12:37
  Embraer 175
  Operated by Air Canada
Seattle US
SEA05:45
11h 8m
1 Stop
Toronto CA
YYZ19:53
Seattle - Toronto
Star Alliance
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 363
  Seattle. US
  SEA 05:45
  2h 20m
  683 Miles
  San Francisco. US
  SFO 08:05
  Airbus A320 Passenger
  Operated by United Airlines
2. Flight 2Air Canada AC 740
  San Francisco. US
  SFO 11:55
  4h 58m
  2266 Miles
  Toronto. CA
  YYZ 19:53
  Boeing 737 MAX 8 Passenger / BBJ MAX 8 / Boeing 737 MAX 200
  Operated by Air Canada
Seattle US
SEA17:15
11h 15m
1 Stop
Toronto CA
YYZ07:30
+1 day/s
Seattle - Toronto
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 737
  Seattle. US
  SEA 17:15
  2h 19m
  683 Miles
  San Francisco. US
  SFO 19:34
  Boeing 737-800 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 436
  San Francisco. US
  SFO 23:22
  5h 8m
  2266 Miles
  Toronto. CA
  YYZ 07:30
  Boeing 737 MAX 8 Passenger / BBJ MAX 8 / Boeing 737 MAX 200
  Operated by United Airlines
Seattle US
SEA07:00
12h 37m
2 Stops
Toronto CA
YYZ22:37
Seattle - Toronto
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 1403
  Seattle. US
  SEA 07:00
  2h 20m
  683 Miles
  San Francisco. US
  SFO 09:20
  Airbus A320 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 313
  San Francisco. US
  SFO 11:05
  7h 7m
  2266 Miles
  Toronto. CA
  YYZ 22:37
  Boeing 737-900 Passenger
  Operated by United Airlines
Seattle US
SEA05:45
13h 52m
2 Stops
Toronto CA
YYZ22:37
Seattle - Toronto
United Airlines
Flight Operates
1. Mon
2. Tue
3. Wed
4. Thu
5. Fri
6. Sat
7. Sun
1. Flight 1United Airlines UA 363
  Seattle. US
  SEA 05:45
  2h 20m
  683 Miles
  San Francisco. US
  SFO 08:05
  Airbus A320 Passenger
  Operated by United Airlines
2. Flight 2United Airlines UA 313
  San Francisco. US
  SFO 11:05
  7h 7m
  2266 Miles
  Toronto. CA
  YYZ 22:37
  Boeing 737-900 Passenger
  Operated by United Airlines

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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 - Toronto

Seattle - Toronto

Seattle - Toronto

Seattle - Toronto

Seattle - Toronto

Seattle - Toronto

Seattle - Toronto

Seattle - Toronto

Seattle - Toronto