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

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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 May , June 2026

31 May - 23 Jun $ 780.00
SAN
San Diego
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
SAN
San Diego
Pick dates
31 May - 20 Jun $ 798.00
SAN
San Diego
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
SAN
San Diego
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29 May - 23 Jun $ 877.00
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

20 May - 31 May $ 1,136.00
SAN
San Diego
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
SAN
San Diego
Pick dates
29 May - 31 May $ 1,165.00
SAN
San Diego
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
SAN
San Diego
Pick dates
29 May - 31 May $ 1,183.00
SAN
San Diego
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
SAN
San Diego
Pick dates

One-way flights to Seattle from San Diego

10:07 PM - 6:45 PM
Air Excursions
2 Stops
21h 28m
SAN - BFI
$ 440
Kiwi
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10:07 PM - 4:05 PM
Air Excursions
2 Stops
18h 48m
SAN - BFI
$ 484
Kiwi
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9:37 AM - 9:25 PM
Air Excursions
2 Stops
12h 38m
SAN - BFI
$ 537
Kiwi
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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.