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

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0 Children (2~11)
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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 January , February 2026

25 Jan - 03 Feb $ 912.00
YTO
Toronto
WestJet
2 STOPS
BFI
Seattle
BFI
Seattle
WestJet
3 STOPS
YTO
Toronto
Pick dates
25 Jan - 10 Feb $ 924.00
YTO
Toronto
WestJet
2 STOPS
BFI
Seattle
BFI
Seattle
WestJet
3 STOPS
YTO
Toronto
Pick dates
25 Jan - 07 Feb $ 960.00
YTO
Toronto
WestJet
2 STOPS
BFI
Seattle
BFI
Seattle
WestJet
3 STOPS
YTO
Toronto
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Last minute flights from Toronto to Seattle

25 Jan - 02 Feb $ 984.00
YTO
Toronto
WestJet
2 STOPS
BFI
Seattle
BFI
Seattle
WestJet
3 STOPS
YTO
Toronto
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25 Jan - 01 Feb $ 1,065.00
YTO
Toronto
WestJet
2 STOPS
BFI
Seattle
BFI
Seattle
WestJet
2 STOPS
YTO
Toronto
Pick dates
25 Jan - 31 Jan $ 1,246.00
YTO
Toronto
WestJet
2 STOPS
BFI
Seattle
BFI
Seattle
WestJet
2 STOPS
YTO
Toronto
Pick dates

One-way flights to Seattle from Toronto

12:30 PM - 2:45 PM
Air Excursions
3 Stops
30h 5m
YTO - BFI
$ 465
Kiwi
Pick dates
8:00 PM - 2:45 PM
Air Excursions
2 Stops
22h 35m
YTO - BFI
$ 504
Kiwi
Pick dates
8:00 PM - 2:45 PM
Air Excursions
2 Stops
22h 35m
YTO - BFI
$ 564
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.