Earn point on your loyalty program!arrow arc left

Cheap flights from Boston (BOS) 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 Boston (BOS) to San Francisco (SFO)

How to find the cheapest flight from Boston (BOS) 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 Boston (BOS) 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 Boston (BOS) 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 Boston to San Francisco in March , April 2025

31 Mar - 03 Apr $ 263.00
BOS
Boston
Hawaiian Airlines
DIRECT
SFO
San Francisco
SFO
San Francisco
Hawaiian Airlines
DIRECT
BOS
Boston
Pick dates
09 Mar - 10 Apr $ 582.00
BOS
Boston
United Airlines
1 STOPS
SFO
San Francisco
SFO
San Francisco
United Airlines
1 STOPS
BOS
Boston
Pick dates
09 Mar - 10 Apr $ 809.00
BOS
Boston
United Airlines
1 STOPS
SFO
San Francisco
SFO
San Francisco
United Airlines
1 STOPS
BOS
Boston
Pick dates

Last minute flights from Boston to San Francisco

24 Mar - 31 Mar $ 279.00
BOS
Boston
Hawaiian Airlines
DIRECT
SFO
San Francisco
SFO
San Francisco
Hawaiian Airlines
DIRECT
BOS
Boston
Pick dates
15 Mar - 31 Mar $ 464.00
BOS
Boston
United Airlines
DIRECT
SFO
San Francisco
SFO
San Francisco
United Airlines
DIRECT
BOS
Boston
Pick dates
14 Mar - 31 Mar $ 562.00
BOS
Boston
United Airlines
DIRECT
SFO
San Francisco
SFO
San Francisco
United Airlines
DIRECT
BOS
Boston
Pick dates

One-way flights to San Francisco from Boston

7:59 PM - 7:59 PM
Hawaiian Airlines
0 Stops
6h 58m
BOS - SFO
$ 132
Kiwi
Pick dates
1:50 PM - 1:50 PM
United Airlines
0 Stops
6h 55m
BOS - SFO
$ 258
Kiwi
Pick dates
5:45 AM - 5:45 AM
United Airlines
0 Stops
6h 55m
BOS - SFO
$ 363
Kiwi
Pick dates

How to find the cheapest flight from Boston (BOS) 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 Boston (BOS) 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 Boston (BOS) to San Francisco (SFO)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.