Earn point on your loyalty program!arrow arc left

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

Know your dates, get live prices in seconds
airplane logo

pin logo

calendar
Departure
calendar backward
Return
airplane logo
1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
Save up to 31%
Book Flight + Hotel at the same time

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

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.
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.

Cheap flights from Washington to Seattle in June , July 2026

23 Jun - 24 Jul $ 857.00
DCA
Washington
JetBlue Airways
2 STOPS
BFI
Seattle
BFI
Seattle
JetBlue Airways
2 STOPS
DCA
Washington
Pick dates
23 Jun - 17 Jul $ 857.00
DCA
Washington
JetBlue Airways
2 STOPS
BFI
Seattle
BFI
Seattle
JetBlue Airways
2 STOPS
DCA
Washington
Pick dates
23 Jun - 21 Jul $ 857.00
DCA
Washington
JetBlue Airways
2 STOPS
BFI
Seattle
BFI
Seattle
JetBlue Airways
2 STOPS
DCA
Washington
Pick dates

Last minute flights from Washington to Seattle

29 Jun - 02 Jul $ 1,031.00
DCA
Washington
JetBlue Airways
2 STOPS
BFI
Seattle
BFI
Seattle
JetBlue Airways
2 STOPS
DCA
Washington
Pick dates
23 Jun - 02 Jul $ 1,036.00
DCA
Washington
JetBlue Airways
2 STOPS
BFI
Seattle
BFI
Seattle
JetBlue Airways
2 STOPS
DCA
Washington
Pick dates
23 Jun - 01 Jul $ 1,057.00
DCA
Washington
JetBlue Airways
2 STOPS
BFI
Seattle
BFI
Seattle
JetBlue Airways
2 STOPS
DCA
Washington
Pick dates

One-way flights to Seattle from Washington

2:20 PM - 9:25 AM
Air Excursions
2 Stops
22h 55m
DCA - BFI
$ 486
Kiwi
Pick dates
2:20 PM - 6:45 AM
Air Excursions
2 Stops
20h 15m
DCA - BFI
$ 491
Kiwi
Pick dates
7:00 AM - 6:45 PM
Air Excursions
2 Stops
15h 35m
DCA - BFI
$ 577
Kiwi
Pick dates

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

Related info for your journey
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.
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.