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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 December 2025 , January 2026

27 Dec - 17 Jan $ 1,199.00
DCA
Washington
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
DCA
Washington
Pick dates
26 Dec - 17 Jan $ 1,199.00
DCA
Washington
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
DCA
Washington
Pick dates
27 Dec - 12 Jan $ 1,211.00
DCA
Washington
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
DCA
Washington
Pick dates

Last minute flights from Washington to Seattle

29 Dec - 01 Jan $ 1,455.00
DCA
Washington
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
3 STOPS
DCA
Washington
Pick dates
26 Dec - 01 Jan $ 1,520.00
DCA
Washington
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
3 STOPS
DCA
Washington
Pick dates
27 Dec - 01 Jan $ 1,520.00
DCA
Washington
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
3 STOPS
DCA
Washington
Pick dates

One-way flights to Seattle from Washington

8:00 AM - 2:45 PM
Air Excursions
2 Stops
34h 35m
DCA - BFI
$ 760
Kiwi
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6:00 PM - 3:05 PM
Air Excursions
2 Stops
24h 55m
DCA - BFI
$ 825
Kiwi
Pick dates
6:00 PM - 3:05 PM
Air Excursions
2 Stops
24h 55m
DCA - BFI
$ 825
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.