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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 May , June 2026

31 May - 30 Jun $ 787.00
SFO
San Francisco
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
SFO
San Francisco
Pick dates
31 May - 30 Jun $ 809.00
SFO
San Francisco
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
SFO
San Francisco
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31 May - 16 Jun $ 810.00
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

28 May - 31 May $ 1,036.00
SFO
San Francisco
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
SFO
San Francisco
Pick dates
24 May - 31 May $ 1,072.00
SFO
San Francisco
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
SFO
San Francisco
Pick dates
20 May - 31 May $ 1,077.00
SFO
San Francisco
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
SFO
San Francisco
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One-way flights to Seattle from San Francisco

3:26 PM - 4:05 PM
Air Excursions
2 Stops
25h 29m
SFO - BFI
$ 423
Kiwi
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8:28 PM - 4:05 PM
Air Excursions
2 Stops
20h 27m
SFO - BFI
$ 463
Kiwi
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8:44 PM - 4:05 PM
Air Excursions
2 Stops
20h 11m
SFO - BFI
$ 488
Kiwi
Pick dates

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.