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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 August , September 2026

30 Aug - 19 Sep $ 657.00
BWI
Baltimore
Frontier Airlines
3 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
3 STOPS
BWI
Baltimore
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30 Aug - 26 Sep $ 657.00
BWI
Baltimore
Frontier Airlines
3 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
3 STOPS
BWI
Baltimore
Pick dates
31 Aug - 26 Sep $ 765.00
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

26 Aug - 01 Sep $ 860.00
BWI
Baltimore
Frontier Airlines
3 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
3 STOPS
BWI
Baltimore
Pick dates
27 Aug - 01 Sep $ 934.00
BWI
Baltimore
Frontier Airlines
3 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
3 STOPS
BWI
Baltimore
Pick dates
28 Aug - 01 Sep $ 989.00
BWI
Baltimore
Frontier Airlines
3 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
3 STOPS
BWI
Baltimore
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One-way flights to Seattle from Baltimore

7:52 PM - 9:25 PM
Air Excursions
3 Stops
29h 23m
BWI - BFI
$ 380
Kiwi
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7:52 PM - 9:25 PM
Air Excursions
3 Stops
29h 23m
BWI - BFI
$ 418
Kiwi
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6:45 AM - 9:25 PM
Air Excursions
3 Stops
18h 30m
BWI - BFI
$ 488
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.