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Cheap flights from San Francisco (SFO) to Seattle (BFI)

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How to find the cheapest flight from San Francisco (SFO) to Seattle (BFI)

How to find the cheapest flight from San Francisco (SFO) to Seattle (BFI)
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How to find the cheapest flight from San Francisco (SFO) to Seattle (BFI)
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How to find the cheapest flight from San Francisco (SFO) to Seattle (BFI)
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Cheap flights from San Francisco to Seattle in September , October 2026

30 Sep - 26 Oct $ 806.00
SFO
San Francisco
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
SFO
San Francisco
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30 Sep - 30 Oct $ 881.00
SFO
San Francisco
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
SFO
San Francisco
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30 Sep - 26 Oct $ 885.00
SFO
San Francisco
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
SFO
San Francisco
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Last minute flights from San Francisco to Seattle

30 Sep - 01 Oct $ 2,078.00
SFO
San Francisco
Air Canada
2 STOPS
BFI
Seattle
BFI
Seattle
Air Canada
2 STOPS
SFO
San Francisco
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30 Sep - 01 Oct $ 2,086.00
SFO
San Francisco
Alaska Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Alaska Airlines
3 STOPS
SFO
San Francisco
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28 Sep - 30 Sep $ 2,263.00
SFO
San Francisco
Flair Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Flair Airlines
2 STOPS
SFO
San Francisco
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One-way flights to Seattle from San Francisco

7:11 PM - 9:25 PM
Air Excursions
2 Stops
27h 4m
SFO - BFI
$ 537
Kiwi
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7:11 PM - 4:05 PM
Air Excursions
2 Stops
21h 44m
SFO - BFI
$ 616
Kiwi
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11:58 PM - 9:25 PM
Air Excursions
3 Stops
22h 17m
SFO - BFI
$ 810
Kiwi
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How to find the cheapest flight from San Francisco (SFO) to Seattle (BFI)

Related info for your journey
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How to find the cheapest flight from San Francisco (SFO) 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 San Francisco (SFO) to Seattle (BFI)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.