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

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Cheap flights from Boise to Seattle in July , August 2026

31 Jul - 27 Aug $ 1,969.00

BOI

Boise

Frontier Airlines

3 STOPS

BFI

Seattle

BFI

Seattle

Frontier Airlines

2 STOPS

BOI

Boise

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31 Jul - 25 Aug $ 2,019.00

BOI

Boise

Frontier Airlines

3 STOPS

BFI

Seattle

BFI

Seattle

Frontier Airlines

3 STOPS

BOI

Boise

Pick dates

31 Jul - 01 Sep $ 2,019.00

BOI

Boise

Frontier Airlines

3 STOPS

BFI

Seattle

BFI

Seattle

Frontier Airlines

3 STOPS

BOI

Boise

Pick dates

One-way flights to Seattle from Boise

11:10 PM - 9:35 AM
Air Excursions

3 Stops

36h 15m
BOI - BFI

$ 1,659
Kiwi

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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.