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

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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 February , March 2026

26 Feb - 10 Mar $ 859.00
DCA
Washington
Frontier Airlines
3 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
DCA
Washington
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20 Feb - 10 Mar $ 974.00
DCA
Washington
Frontier Airlines
3 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
DCA
Washington
Pick dates
20 Feb - 31 Mar $ 1,010.00
DCA
Washington
Frontier Airlines
3 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
DCA
Washington
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Last minute flights from Washington to Seattle

06 Feb - 01 Mar $ 2,350.00
DCA
Washington
Alaska Airlines
3 STOPS
BFI
Seattle
BFI
Seattle
Alaska Airlines
3 STOPS
DCA
Washington
Pick dates
06 Feb - 01 Mar $ 2,350.00
DCA
Washington
Alaska Airlines
3 STOPS
BFI
Seattle
BFI
Seattle
Alaska Airlines
3 STOPS
DCA
Washington
Pick dates
21 Feb - 01 Mar $ 2,464.00
DCA
Washington
Alaska Airlines
3 STOPS
BFI
Seattle
BFI
Seattle
Alaska Airlines
3 STOPS
DCA
Washington
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One-way flights to Seattle from Washington

6:00 PM - 7:35 AM
Air Excursions
3 Stops
41h 25m
DCA - BFI
$ 476
Kiwi
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8:00 AM - 7:35 AM
Air Excursions
3 Stops
27h 25m
DCA - BFI
$ 591
Kiwi
Pick dates
6:00 PM - 2:45 PM
Air Excursions
3 Stops
24h 35m
DCA - BFI
$ 638
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.