Earn point on your loyalty program!arrow arc left

Cheap flights from Seattle (BFI) to San Francisco (SFO)

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 Francisco (SFO)

How to find the cheapest flight from Seattle (BFI) to San Francisco (SFO)
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 Francisco (SFO)
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 Francisco (SFO)
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 Francisco in April , May 2026

27 Apr - 14 May $ 742.00
BFI
Seattle
Air Excursions
2 STOPS
SFO
San Francisco
SFO
San Francisco
Air Excursions
2 STOPS
BFI
Seattle
Pick dates
27 Apr - 07 May $ 742.00
BFI
Seattle
Air Excursions
2 STOPS
SFO
San Francisco
SFO
San Francisco
Air Excursions
2 STOPS
BFI
Seattle
Pick dates
27 Apr - 01 Jun $ 793.00
BFI
Seattle
Air Excursions
2 STOPS
SFO
San Francisco
SFO
San Francisco
Air Excursions
2 STOPS
BFI
Seattle
Pick dates

Last minute flights from Seattle to San Francisco

27 Apr - 01 May $ 803.00
BFI
Seattle
Air Excursions
2 STOPS
SFO
San Francisco
SFO
San Francisco
Air Excursions
2 STOPS
BFI
Seattle
Pick dates
29 Apr - 01 May $ 826.00
BFI
Seattle
Air Excursions
2 STOPS
SFO
San Francisco
SFO
San Francisco
Air Excursions
2 STOPS
BFI
Seattle
Pick dates
27 Apr - 01 May $ 865.00
BFI
Seattle
Air Excursions
2 STOPS
SFO
San Francisco
SFO
San Francisco
Air Excursions
2 STOPS
BFI
Seattle
Pick dates

One-way flights to San Francisco from Seattle

6:55 AM - 8:01 PM
Frontier Airlines
2 Stops
14h 44m
BFI - SFO
$ 396
Kiwi
Pick dates
8:05 AM - 10:29 PM
Frontier Airlines
2 Stops
16h 22m
BFI - SFO
$ 398
Kiwi
Pick dates
8:05 AM - 9:25 PM
Frontier Airlines
2 Stops
15h 20m
BFI - SFO
$ 420
Kiwi
Pick dates

How to find the cheapest flight from Seattle (BFI) to San Francisco (SFO)

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 Francisco (SFO)
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 Francisco (SFO)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.