Earn point on your loyalty program!arrow arc left

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

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 San Francisco (SFO) to Boston (BOS)

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

Cheap flights from San Francisco to Boston in September , October 2026

29 Sep - 28 Oct $ 332.00
SFO
San Francisco
JetBlue Airways
DIRECT
BOS
Boston
BOS
Boston
JetBlue Airways
DIRECT
SFO
San Francisco
Pick dates
15 Sep - 06 Oct $ 385.00
SFO
San Francisco
JetBlue Airways
1 STOPS
BOS
Boston
BOS
Boston
JetBlue Airways
DIRECT
SFO
San Francisco
Pick dates
08 Sep - 06 Oct $ 850.00
SFO
San Francisco
JetBlue Airways
DIRECT
BOS
Boston
BOS
Boston
JetBlue Airways
DIRECT
SFO
San Francisco
Pick dates

Last minute flights from San Francisco to Boston

29 Sep - 30 Sep $ 340.00
SFO
San Francisco
JetBlue Airways
DIRECT
BOS
Boston
BOS
Boston
JetBlue Airways
DIRECT
SFO
San Francisco
Pick dates
14 Sep - 30 Sep $ 372.00
SFO
San Francisco
Frontier Airlines
1 STOPS
BOS
Boston
BOS
Boston
Frontier Airlines
1 STOPS
SFO
San Francisco
Pick dates
08 Sep - 30 Sep $ 850.00
SFO
San Francisco
JetBlue Airways
DIRECT
BOS
Boston
BOS
Boston
JetBlue Airways
DIRECT
SFO
San Francisco
Pick dates

One-way flights to Boston from San Francisco

2:05 PM - 2:05 PM
United Airlines
0 Stops
5h 52m
SFO - BOS
$ 164
Kiwi
Pick dates
10:05 PM - 9:28 AM
Frontier Airlines
1 Stops
11h 2m
SFO - BOS
$ 221
Kiwi
Pick dates
6:00 AM - 6:00 AM
JetBlue Airways
0 Stops
5h 41m
SFO - BOS
$ 677
Kiwi
Pick dates

How to find the cheapest flight from San Francisco (SFO) to Boston (BOS)

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