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Cheap flights from Toronto (YTO) to Seattle (BFI)

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How to find the cheapest flight from Toronto (YTO) to Seattle (BFI)

How to find the cheapest flight from Toronto (YTO) to Seattle (BFI)
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How to find the cheapest flight from Toronto (YTO) to Seattle (BFI)
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How to find the cheapest flight from Toronto (YTO) to Seattle (BFI)
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Cheap flights from Toronto to Seattle in April , May 2026

29 Apr - 13 May $ 1,174.00
YTO
Toronto
WestJet
2 STOPS
BFI
Seattle
BFI
Seattle
WestJet
2 STOPS
YTO
Toronto
Pick dates
29 Apr - 20 May $ 1,174.00
YTO
Toronto
WestJet
2 STOPS
BFI
Seattle
BFI
Seattle
WestJet
2 STOPS
YTO
Toronto
Pick dates
29 Apr - 29 May $ 1,178.00
YTO
Toronto
WestJet
2 STOPS
BFI
Seattle
BFI
Seattle
WestJet
2 STOPS
YTO
Toronto
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Last minute flights from Toronto to Seattle

29 Apr - 01 May $ 1,320.00
YTO
Toronto
WestJet
2 STOPS
BFI
Seattle
BFI
Seattle
WestJet
2 STOPS
YTO
Toronto
Pick dates
28 Apr - 01 May $ 1,355.00
YTO
Toronto
WestJet
2 STOPS
BFI
Seattle
BFI
Seattle
WestJet
2 STOPS
YTO
Toronto
Pick dates
27 Apr - 01 May $ 1,355.00
YTO
Toronto
WestJet
2 STOPS
BFI
Seattle
BFI
Seattle
WestJet
2 STOPS
YTO
Toronto
Pick dates

One-way flights to Seattle from Toronto

12:22 PM - 9:25 PM
Air Excursions
2 Stops
12h 53m
YTO - BFI
$ 784
Kiwi
Pick dates
12:22 PM - 9:25 PM
Air Excursions
2 Stops
12h 53m
YTO - BFI
$ 819
Kiwi
Pick dates
6:30 AM - 6:45 PM
Air Excursions
2 Stops
16h 5m
YTO - BFI
$ 819
Kiwi
Pick dates

How to find the cheapest flight from Toronto (YTO) to Seattle (BFI)

Related info for your journey
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How to find the cheapest flight from Toronto (YTO) to Seattle (BFI)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Toronto (YTO) to Seattle (BFI)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.