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Cheap flights from Boise (BOI) to Seattle (BFI)

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How to find the cheapest flight from Boise (BOI) to Seattle (BFI)

How to find the cheapest flight from Boise (BOI) to Seattle (BFI)
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How to find the cheapest flight from Boise (BOI) to Seattle (BFI)
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How to find the cheapest flight from Boise (BOI) to Seattle (BFI)
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Cheap flights from Boise to Seattle in November , December 2026

25 Nov - 23 Dec $ 788.00
BOI
Boise
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
BOI
Boise
Pick dates
25 Nov - 30 Dec $ 789.00
BOI
Boise
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
BOI
Boise
Pick dates
15 Nov - 23 Dec $ 884.00
BOI
Boise
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
BOI
Boise
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Last minute flights from Boise to Seattle

23 Nov - 02 Dec $ 2,055.00
BOI
Boise
Alaska Airlines
3 STOPS
BFI
Seattle
BFI
Seattle
Alaska Airlines
3 STOPS
BOI
Boise
Pick dates
23 Nov - 02 Dec $ 2,075.00
BOI
Boise
Alaska Airlines
3 STOPS
BFI
Seattle
BFI
Seattle
Alaska Airlines
3 STOPS
BOI
Boise
Pick dates
23 Nov - 02 Dec $ 2,244.00
BOI
Boise
Alaska Airlines
3 STOPS
BFI
Seattle
BFI
Seattle
Alaska Airlines
3 STOPS
BOI
Boise
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One-way flights to Seattle from Boise

7:55 PM - 9:35 AM
Air Excursions
2 Stops
39h 30m
BOI - BFI
$ 407
Kiwi
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2:49 PM - 9:25 PM
Air Excursions
2 Stops
32h 26m
BOI - BFI
$ 497
Kiwi
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2:49 PM - 4:05 PM
Air Excursions
2 Stops
27h 6m
BOI - BFI
$ 587
Kiwi
Pick dates

How to find the cheapest flight from Boise (BOI) to Seattle (BFI)

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