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Cheap flights from Washington (DCA) to Seattle (BFI)

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0 Children (2~11)
0 Infants (0~2)
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How to find the cheapest flight from Washington (DCA) to Seattle (BFI)

How to find the cheapest flight from Washington (DCA) to Seattle (BFI)
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How to find the cheapest flight from Washington (DCA) to Seattle (BFI)
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How to find the cheapest flight from Washington (DCA) to Seattle (BFI)
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Cheap flights from Washington to Seattle in September , October 2026

30 Sep - 20 Oct $ 1,066.00
DCA
Washington
Frontier Airlines
3 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
DCA
Washington
Pick dates
30 Sep - 20 Oct $ 1,089.00
DCA
Washington
Frontier Airlines
3 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
DCA
Washington
Pick dates
30 Sep - 20 Oct $ 1,168.00
DCA
Washington
Frontier Airlines
3 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
DCA
Washington
Pick dates

One-way flights to Seattle from Washington

6:30 PM - 9:25 PM
Air Excursions
3 Stops
30h 45m
DCA - BFI
$ 677
Kiwi
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6:30 PM - 4:05 PM
Air Excursions
3 Stops
25h 25m
DCA - BFI
$ 756
Kiwi
Pick dates
1:00 PM - 9:25 PM
Air Excursions
2 Stops
36h 15m
DCA - BFI
$ 832
Kiwi
Pick dates

How to find the cheapest flight from Washington (DCA) to Seattle (BFI)

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