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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 December 2025 , January 2026

17 Dec - 13 Jan $ 1,150.00
BWI
Baltimore
Spirit Airlines
3 STOPS
BFI
Seattle
BFI
Seattle
Spirit Airlines
3 STOPS
BWI
Baltimore
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17 Dec - 20 Jan $ 1,150.00
BWI
Baltimore
Spirit Airlines
3 STOPS
BFI
Seattle
BFI
Seattle
Spirit Airlines
3 STOPS
BWI
Baltimore
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29 Dec - 13 Jan $ 1,214.00
BWI
Baltimore
Spirit Airlines
3 STOPS
BFI
Seattle
BFI
Seattle
Spirit Airlines
3 STOPS
BWI
Baltimore
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Last minute flights from Baltimore to Seattle

17 Dec - 02 Jan $ 1,310.00
BWI
Baltimore
Frontier Airlines
3 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
3 STOPS
BWI
Baltimore
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17 Dec - 02 Jan $ 1,358.00
BWI
Baltimore
Frontier Airlines
3 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
3 STOPS
BWI
Baltimore
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29 Dec - 02 Jan $ 1,371.00
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

9:34 AM - 5:35 AM
Air Excursions
3 Stops
47h 51m
BWI - BFI
$ 648
Kiwi
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8:17 AM - 5:35 AM
Air Excursions
3 Stops
49h 8m
BWI - BFI
$ 648
Kiwi
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11:55 AM - 4:05 PM
Air Excursions
3 Stops
32h
BWI - BFI
$ 788
Kiwi
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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.