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 November , December 2026

25 Nov - 01 Dec $ 338.00
BOS
Boston
Alaska Airlines
1 STOPS
SFO
San Francisco
SFO
San Francisco
Alaska Airlines
1 STOPS
BOS
Boston
Pick dates
20 Nov - 09 Dec $ 394.00
BOS
Boston
JetBlue Airways
1 STOPS
SFO
San Francisco
SFO
San Francisco
JetBlue Airways
1 STOPS
BOS
Boston
Pick dates
19 Nov - 05 Dec $ 493.00
BOS
Boston
JetBlue Airways
DIRECT
SFO
San Francisco
SFO
San Francisco
JetBlue Airways
DIRECT
BOS
Boston
Pick dates

Last minute flights from Boston to San Francisco

26 Nov - 30 Nov $ 537.00
BOS
Boston
JetBlue Airways
1 STOPS
SFO
San Francisco
SFO
San Francisco
JetBlue Airways
DIRECT
BOS
Boston
Pick dates
20 Nov - 30 Nov $ 578.00
BOS
Boston
JetBlue Airways
1 STOPS
SFO
San Francisco
SFO
San Francisco
JetBlue Airways
DIRECT
BOS
Boston
Pick dates
19 Nov - 30 Nov $ 644.00
BOS
Boston
JetBlue Airways
DIRECT
SFO
San Francisco
SFO
San Francisco
JetBlue Airways
DIRECT
BOS
Boston
Pick dates

One-way flights to San Francisco from Boston

8:36 AM - 1:58 PM
Frontier Airlines
1 Stops
11h 2m
BOS - SFO
$ 224
Kiwi
Pick dates
12:39 PM - 5:58 PM
Frontier Airlines
1 Stops
11h 1m
BOS - SFO
$ 252
Kiwi
Pick dates
6:00 AM - 6:00 AM
JetBlue Airways
0 Stops
6h 40m
BOS - SFO
$ 320
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.