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

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1 Adults (11+)
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 July , August 2026

31 Jul - 26 Aug $ 1,042.00
BUF
Buffalo
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
3 STOPS
BUF
Buffalo
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31 Jul - 19 Aug $ 1,051.00
BUF
Buffalo
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
3 STOPS
BUF
Buffalo
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31 Jul - 25 Aug $ 1,073.00
BUF
Buffalo
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
3 STOPS
BUF
Buffalo
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Last minute flights from Buffalo to Seattle

30 Jul - 01 Aug $ 1,341.00
BUF
Buffalo
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
3 STOPS
BUF
Buffalo
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30 Jul - 01 Aug $ 1,419.00
BUF
Buffalo
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
3 STOPS
BUF
Buffalo
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29 Jul - 01 Aug $ 1,439.00
BUF
Buffalo
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
3 STOPS
BUF
Buffalo
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One-way flights to Seattle from Buffalo

10:50 AM - 8:25 PM
Air Excursions
2 Stops
13h 25m
BUF - BFI
$ 685
Kiwi
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11:36 AM - 9:25 PM
Air Excursions
2 Stops
13h 39m
BUF - BFI
$ 714
Kiwi
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6:00 AM - 4:05 PM
Air Excursions
2 Stops
13h 55m
BUF - BFI
$ 734
Kiwi
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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.