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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 March , April 2026

24 Mar - 27 Apr $ 1,069.00
YTO
Toronto
WestJet
2 STOPS
BFI
Seattle
BFI
Seattle
WestJet
2 STOPS
YTO
Toronto
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20 Mar - 27 Apr $ 1,082.00
YTO
Toronto
WestJet
2 STOPS
BFI
Seattle
BFI
Seattle
WestJet
2 STOPS
YTO
Toronto
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18 Mar - 27 Apr $ 1,082.00
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

24 Mar - 31 Mar $ 1,155.00
YTO
Toronto
Air Canada
2 STOPS
BFI
Seattle
BFI
Seattle
Air Canada
2 STOPS
YTO
Toronto
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18 Mar - 31 Mar $ 1,169.00
YTO
Toronto
Air Canada
2 STOPS
BFI
Seattle
BFI
Seattle
Air Canada
2 STOPS
YTO
Toronto
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24 Mar - 31 Mar $ 1,172.00
YTO
Toronto
Air Canada
2 STOPS
BFI
Seattle
BFI
Seattle
Air Canada
2 STOPS
YTO
Toronto
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One-way flights to Seattle from Toronto

7:15 AM - 4:05 PM
Air Excursions
2 Stops
12h 40m
YTO - BFI
$ 570
Kiwi
Pick dates
7:15 AM - 4:05 PM
Air Excursions
2 Stops
12h 40m
YTO - BFI
$ 584
Kiwi
Pick dates
7:15 AM - 4:05 PM
Air Excursions
2 Stops
12h 40m
YTO - BFI
$ 584
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.