Earn point on your loyalty program!arrow arc left

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

Know your dates, get live prices in seconds
airplane logo

pin logo

calendar
Departure
calendar backward
Return
airplane logo
1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
Save up to 31%
Book Flight + Hotel at the same time

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

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

Cheap flights from Seattle to San Diego in August , September 2026

31 Aug - 02 Sep $ 775.00
BFI
Seattle
Air Excursions
2 STOPS
SAN
San Diego
SAN
San Diego
Air Excursions
2 STOPS
BFI
Seattle
Pick dates
27 Aug - 02 Sep $ 789.00
BFI
Seattle
Air Excursions
2 STOPS
SAN
San Diego
SAN
San Diego
Air Excursions
2 STOPS
BFI
Seattle
Pick dates
27 Aug - 01 Sep $ 827.00
BFI
Seattle
Air Excursions
2 STOPS
SAN
San Diego
SAN
San Diego
Air Excursions
2 STOPS
BFI
Seattle
Pick dates

Last minute flights from Seattle to San Diego

27 Aug - 31 Aug $ 827.00
BFI
Seattle
Air Excursions
2 STOPS
SAN
San Diego
SAN
San Diego
Air Excursions
2 STOPS
BFI
Seattle
Pick dates
20 Aug - 31 Aug $ 899.00
BFI
Seattle
Air Excursions
2 STOPS
SAN
San Diego
SAN
San Diego
Air Excursions
2 STOPS
BFI
Seattle
Pick dates
20 Aug - 31 Aug $ 955.00
BFI
Seattle
Air Excursions
2 STOPS
SAN
San Diego
SAN
San Diego
Air Excursions
2 STOPS
BFI
Seattle
Pick dates

One-way flights to San Diego from Seattle

5:25 AM - 10:29 PM
Frontier Airlines
2 Stops
18h 26m
BFI - SAN
$ 406
Kiwi
Pick dates
8:05 AM - 10:29 PM
Frontier Airlines
2 Stops
15h 46m
BFI - SAN
$ 414
Kiwi
Pick dates
5:25 AM - 6:48 PM
Frontier Airlines
2 Stops
14h 39m
BFI - SAN
$ 486
Kiwi
Pick dates

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

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