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Cheap flights from Denver (DEN) to Seattle (BFI)

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How to find the cheapest flight from Denver (DEN) to Seattle (BFI)

How to find the cheapest flight from Denver (DEN) to Seattle (BFI)
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How to find the cheapest flight from Denver (DEN) to Seattle (BFI)
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How to find the cheapest flight from Denver (DEN) to Seattle (BFI)
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Cheap flights from Denver to Seattle in February , March 2026

27 Feb - 09 Mar $ 829.00
DEN
Denver
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
1 STOPS
DEN
Denver
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27 Feb - 06 Mar $ 829.00
DEN
Denver
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
1 STOPS
DEN
Denver
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27 Feb - 13 Mar $ 829.00
DEN
Denver
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
1 STOPS
DEN
Denver
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Last minute flights from Denver to Seattle

27 Feb - 02 Mar $ 1,127.00
DEN
Denver
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
3 STOPS
DEN
Denver
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04 Feb - 02 Mar $ 1,165.00
DEN
Denver
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
3 STOPS
DEN
Denver
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27 Feb - 02 Mar $ 1,191.00
DEN
Denver
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
3 STOPS
DEN
Denver
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One-way flights to Seattle from Denver

10:49 PM - 2:45 PM
Air Excursions
2 Stops
17h 46m
DEN - BFI
$ 514
Kiwi
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10:49 PM - 3:05 PM
Air Excursions
2 Stops
18h 6m
DEN - BFI
$ 514
Kiwi
Pick dates
10:29 PM - 2:45 PM
Air Excursions
2 Stops
18h 6m
DEN - BFI
$ 514
Kiwi
Pick dates

How to find the cheapest flight from Denver (DEN) to Seattle (BFI)

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