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Cheap flights from Buffalo (BUF) to Seattle (BFI)

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0 Children (2~11)
0 Infants (0~2)
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How to find the cheapest flight from Buffalo (BUF) to Seattle (BFI)

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

20 Apr - 19 May $ 786.00
BUF
Buffalo
Frontier Airlines
3 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
3 STOPS
BUF
Buffalo
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28 Apr - 19 May $ 796.00
BUF
Buffalo
Frontier Airlines
3 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
3 STOPS
BUF
Buffalo
Pick dates
27 Apr - 19 May $ 814.00
BUF
Buffalo
Frontier Airlines
3 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
3 STOPS
BUF
Buffalo
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Last minute flights from Buffalo to Seattle

20 Apr - 01 May $ 848.00
BUF
Buffalo
Frontier Airlines
3 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
3 STOPS
BUF
Buffalo
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28 Apr - 01 May $ 858.00
BUF
Buffalo
Frontier Airlines
3 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
3 STOPS
BUF
Buffalo
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27 Apr - 01 May $ 876.00
BUF
Buffalo
Frontier Airlines
3 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
3 STOPS
BUF
Buffalo
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One-way flights to Seattle from Buffalo

12:32 PM - 2:45 PM
Air Excursions
3 Stops
30h 3m
BUF - BFI
$ 402
Kiwi
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1:56 PM - 2:45 PM
Air Excursions
3 Stops
28h 39m
BUF - BFI
$ 412
Kiwi
Pick dates
12:32 PM - 2:45 PM
Air Excursions
3 Stops
30h 3m
BUF - BFI
$ 430
Kiwi
Pick dates

How to find the cheapest flight from Buffalo (BUF) to Seattle (BFI)

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