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

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0 Children (2~11)
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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 May , June 2026

27 May - 03 Jun $ 901.00
BUF
Buffalo
Frontier Airlines
3 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
3 STOPS
BUF
Buffalo
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27 May - 03 Jun $ 945.00
BUF
Buffalo
Frontier Airlines
3 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
3 STOPS
BUF
Buffalo
Pick dates
28 May - 03 Jun $ 958.00
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

27 May - 01 Jun $ 1,211.00
BUF
Buffalo
Frontier Airlines
3 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
3 STOPS
BUF
Buffalo
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27 May - 01 Jun $ 1,256.00
BUF
Buffalo
Frontier Airlines
3 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
3 STOPS
BUF
Buffalo
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28 May - 01 Jun $ 1,269.00
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

2:49 PM - 9:25 PM
Air Excursions
3 Stops
34h 26m
BUF - BFI
$ 507
Kiwi
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8:49 PM - 9:25 PM
Air Excursions
3 Stops
28h 26m
BUF - BFI
$ 564
Kiwi
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2:49 PM - 4:05 PM
Air Excursions
3 Stops
29h 6m
BUF - BFI
$ 564
Kiwi
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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)
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.