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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 February , March 2026

11 Feb - 04 Mar $ 316.00
SFO
San Francisco
Alaska Airlines
1 STOPS
BOS
Boston
BOS
Boston
Alaska Airlines
1 STOPS
SFO
San Francisco
Pick dates
25 Feb - 03 Mar $ 323.00
SFO
San Francisco
United Airlines
DIRECT
BOS
Boston
BOS
Boston
United Airlines
DIRECT
SFO
San Francisco
Pick dates
04 Feb - 18 Mar $ 521.00
SFO
San Francisco
United Airlines
DIRECT
BOS
Boston
BOS
Boston
United Airlines
DIRECT
SFO
San Francisco
Pick dates

Last minute flights from San Francisco to Boston

24 Feb - 28 Feb $ 346.00
SFO
San Francisco
United Airlines
DIRECT
BOS
Boston
BOS
Boston
United Airlines
DIRECT
SFO
San Francisco
Pick dates
11 Feb - 01 Mar $ 399.00
SFO
San Francisco
Alaska Airlines
1 STOPS
BOS
Boston
BOS
Boston
Alaska Airlines
1 STOPS
SFO
San Francisco
Pick dates
13 Feb - 28 Feb $ 759.00
SFO
San Francisco
United Airlines
DIRECT
BOS
Boston
BOS
Boston
United Airlines
DIRECT
SFO
San Francisco
Pick dates

One-way flights to Boston from San Francisco

8:25 AM - 8:25 AM
United Airlines
0 Stops
5h 37m
SFO - BOS
$ 114
Kiwi
Pick dates
7:00 AM - 9:10 AM
Alaska Airlines
1 Stops
7h 39m
SFO - BOS
$ 203
Kiwi
Pick dates
8:25 AM - 8:25 AM
United Airlines
0 Stops
5h 37m
SFO - BOS
$ 253
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.