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

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How to find the cheapest flight from Baltimore (BWI) to Seattle (BFI)

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

30 Sep - 21 Oct $ 807.00
BWI
Baltimore
Frontier Airlines
3 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
3 STOPS
BWI
Baltimore
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30 Sep - 30 Oct $ 819.00
BWI
Baltimore
Frontier Airlines
3 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
3 STOPS
BWI
Baltimore
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17 Sep - 21 Oct $ 838.00
BWI
Baltimore
Frontier Airlines
3 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
3 STOPS
BWI
Baltimore
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Last minute flights from Baltimore to Seattle

27 Sep - 02 Oct $ 929.00
BWI
Baltimore
Frontier Airlines
3 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
3 STOPS
BWI
Baltimore
Pick dates
17 Sep - 02 Oct $ 944.00
BWI
Baltimore
Frontier Airlines
3 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
3 STOPS
BWI
Baltimore
Pick dates
27 Sep - 02 Oct $ 963.00
BWI
Baltimore
Frontier Airlines
3 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
3 STOPS
BWI
Baltimore
Pick dates

One-way flights to Seattle from Baltimore

9:25 PM - 6:45 PM
Air Excursions
3 Stops
25h 10m
BWI - BFI
$ 467
Kiwi
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9:25 PM - 4:05 PM
Air Excursions
3 Stops
22h 30m
BWI - BFI
$ 506
Kiwi
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9:32 PM - 4:05 PM
Air Excursions
3 Stops
22h 23m
BWI - BFI
$ 543
Kiwi
Pick dates

How to find the cheapest flight from Baltimore (BWI) to Seattle (BFI)

Related info for your journey
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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.