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Cheap flights from San Diego (SAN) to Seattle (BFI)

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0 Children (2~11)
0 Infants (0~2)
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How to find the cheapest flight from San Diego (SAN) to Seattle (BFI)

How to find the cheapest flight from San Diego (SAN) to Seattle (BFI)
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How to find the cheapest flight from San Diego (SAN) to Seattle (BFI)
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How to find the cheapest flight from San Diego (SAN) to Seattle (BFI)
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Cheap flights from San Diego to Seattle in April , May 2026

23 Apr - 28 May $ 786.00
SAN
San Diego
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
SAN
San Diego
Pick dates
23 Apr - 29 May $ 786.00
SAN
San Diego
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
SAN
San Diego
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23 Apr - 08 May $ 792.00
SAN
San Diego
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
SAN
San Diego
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Last minute flights from San Diego to Seattle

23 Apr - 01 May $ 815.00
SAN
San Diego
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
SAN
San Diego
Pick dates
16 Apr - 01 May $ 864.00
SAN
San Diego
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
SAN
San Diego
Pick dates
23 Apr - 30 Apr $ 907.00
SAN
San Diego
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
SAN
San Diego
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One-way flights to Seattle from San Diego

12:12 PM - 2:45 PM
Air Excursions
2 Stops
27h 23m
SAN - BFI
$ 357
Kiwi
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9:00 PM - 2:45 PM
Air Excursions
2 Stops
18h 35m
SAN - BFI
$ 379
Kiwi
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9:00 PM - 2:45 PM
Air Excursions
2 Stops
18h 35m
SAN - BFI
$ 428
Kiwi
Pick dates

How to find the cheapest flight from San Diego (SAN) to Seattle (BFI)

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