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

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1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
Save up to 31%
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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)
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How to find the cheapest flight from San Francisco (SFO) to Boston (BOS)
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How to find the cheapest flight from San Francisco (SFO) to Boston (BOS)
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Cheap flights from San Francisco to Boston in August , September 2026

24 Aug - 10 Sep $ 345.00
SFO
San Francisco
Frontier Airlines
1 STOPS
BOS
Boston
BOS
Boston
Frontier Airlines
1 STOPS
SFO
San Francisco
Pick dates
31 Aug - 15 Sep $ 361.00
SFO
San Francisco
JetBlue Airways
DIRECT
BOS
Boston
BOS
Boston
JetBlue Airways
DIRECT
SFO
San Francisco
Pick dates
19 Aug - 09 Sep $ 508.00
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

30 Aug - 31 Aug $ 379.00
SFO
San Francisco
JetBlue Airways
1 STOPS
BOS
Boston
BOS
Boston
JetBlue Airways
DIRECT
SFO
San Francisco
Pick dates
24 Aug - 31 Aug $ 393.00
SFO
San Francisco
Frontier Airlines
1 STOPS
BOS
Boston
BOS
Boston
Frontier Airlines
1 STOPS
SFO
San Francisco
Pick dates
18 Aug - 31 Aug $ 539.00
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

2:07 PM - 2:07 PM
United Airlines
0 Stops
5h 52m
SFO - BOS
$ 189
Kiwi
Pick dates
10:35 PM - 9:05 AM
Frontier Airlines
1 Stops
10h 12m
SFO - BOS
$ 209
Kiwi
Pick dates
3:18 PM - 3:18 PM
JetBlue Airways
0 Stops
5h 41m
SFO - BOS
$ 340
Kiwi
Pick dates

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

Related info for your journey
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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.