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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 January , February 2026

29 Jan - 05 Feb $ 838.00
SAN
San Diego
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
3 STOPS
SAN
San Diego
Pick dates
29 Jan - 21 Feb $ 851.00
SAN
San Diego
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
3 STOPS
SAN
San Diego
Pick dates
22 Jan - 05 Feb $ 900.00
SAN
San Diego
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
3 STOPS
SAN
San Diego
Pick dates

Last minute flights from San Diego to Seattle

29 Jan - 02 Feb $ 780.00
SAN
San Diego
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
SAN
San Diego
Pick dates
22 Jan - 02 Feb $ 842.00
SAN
San Diego
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
SAN
San Diego
Pick dates
17 Jan - 02 Feb $ 910.00
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

2:56 PM - 2:45 PM
Air Excursions
2 Stops
24h 39m
SAN - BFI
$ 401
Kiwi
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2:56 PM - 2:45 PM
Air Excursions
2 Stops
24h 39m
SAN - BFI
$ 463
Kiwi
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2:57 PM - 10:15 AM
Air Excursions
2 Stops
20h 8m
SAN - BFI
$ 525
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.