Earn point on your loyalty program!arrow arc left

Cheap flights from Baltimore (BWI) 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 Baltimore (BWI) to Seattle (BFI)

How to find the cheapest flight from Baltimore (BWI) 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 Baltimore (BWI) 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 Baltimore (BWI) 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 Baltimore to Seattle in November , December 2025

26 Nov - 12 Dec $ 1,254.00
BWI
Baltimore
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
3 STOPS
BWI
Baltimore
Pick dates
26 Nov - 13 Dec $ 1,261.00
BWI
Baltimore
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
3 STOPS
BWI
Baltimore
Pick dates
26 Nov - 15 Dec $ 1,276.00
BWI
Baltimore
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
3 STOPS
BWI
Baltimore
Pick dates

Last minute flights from Baltimore to Seattle

26 Nov - 01 Dec $ 1,447.00
BWI
Baltimore
Sun Country Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Sun Country Airlines
2 STOPS
BWI
Baltimore
Pick dates
24 Nov - 01 Dec $ 1,449.00
BWI
Baltimore
Sun Country Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Sun Country Airlines
2 STOPS
BWI
Baltimore
Pick dates
26 Nov - 01 Dec $ 1,503.00
BWI
Baltimore
Sun Country Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Sun Country Airlines
2 STOPS
BWI
Baltimore
Pick dates

One-way flights to Seattle from Baltimore

12:20 PM - 8:15 AM
Air Excursions
2 Stops
23h 45m
BWI - BFI
$ 697
Kiwi
Pick dates
11:50 AM - 5:35 AM
Air Excursions
2 Stops
21h 35m
BWI - BFI
$ 719
Kiwi
Pick dates
5:45 AM - 4:05 PM
Air Excursions
2 Stops
14h 10m
BWI - BFI
$ 751
Kiwi
Pick dates

How to find the cheapest flight from Baltimore (BWI) 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 Baltimore (BWI) 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 Baltimore (BWI) to Seattle (BFI)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.