Cheap flights from Bismarck (BIS) to Seattle (BFI)

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How to find the cheapest flight from Bismarck (BIS) to Seattle (BFI)

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How to find the cheapest flight from Bismarck (BIS) to Seattle (BFI)

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How to find the cheapest flight from Bismarck (BIS) to Seattle (BFI)

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Cheap flights from Bismarck to Seattle in February , March 2026

28 Feb - 27 Mar $ 1,282.00

BIS

Bismarck

Allegiant Air

2 STOPS

BFI

Seattle

BFI

Seattle

Allegiant Air

2 STOPS

BIS

Bismarck

Pick dates

28 Feb - 30 Mar $ 1,340.00

BIS

Bismarck

Allegiant Air

2 STOPS

BFI

Seattle

BFI

Seattle

Allegiant Air

2 STOPS

BIS

Bismarck

Pick dates

28 Feb - 26 Mar $ 1,347.00

BIS

Bismarck

Allegiant Air

2 STOPS

BFI

Seattle

BFI

Seattle

Allegiant Air

3 STOPS

BIS

Bismarck

Pick dates

One-way flights to Seattle from Bismarck

9:14 PM - 5:35 AM
Air Excursions

2 Stops

35h 11m
BIS - BFI

$ 790
Kiwi

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How to find the cheapest flight from Bismarck (BIS) to Seattle (BFI)

Related info for your journey

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How to find the cheapest flight from Bismarck (BIS) 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 Bismarck (BIS) to Seattle (BFI)

Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.