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

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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 Boston (BOS) to San Francisco (SFO)

How to find the cheapest flight from Boston (BOS) to San Francisco (SFO)
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How to find the cheapest flight from Boston (BOS) to San Francisco (SFO)
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How to find the cheapest flight from Boston (BOS) to San Francisco (SFO)
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Cheap flights from Boston to San Francisco in December 2025 , January 2026

31 Dec - 07 Jan $ 295.00
BOS
Boston
Hawaiian Airlines
1 STOPS
SFO
San Francisco
SFO
San Francisco
Hawaiian Airlines
1 STOPS
BOS
Boston
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16 Dec - 06 Jan $ 439.00
BOS
Boston
Hawaiian Airlines
DIRECT
SFO
San Francisco
SFO
San Francisco
Hawaiian Airlines
DIRECT
BOS
Boston
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18 Dec - 06 Jan $ 520.00
BOS
Boston
Hawaiian Airlines
DIRECT
SFO
San Francisco
SFO
San Francisco
Hawaiian Airlines
DIRECT
BOS
Boston
Pick dates

Last minute flights from Boston to San Francisco

24 Dec - 31 Dec $ 432.00
BOS
Boston
Alaska Airlines
DIRECT
SFO
San Francisco
SFO
San Francisco
Alaska Airlines
1 STOPS
BOS
Boston
Pick dates
24 Dec - 31 Dec $ 436.00
BOS
Boston
Hawaiian Airlines
DIRECT
SFO
San Francisco
SFO
San Francisco
Hawaiian Airlines
1 STOPS
BOS
Boston
Pick dates
17 Dec - 31 Dec $ 636.00
BOS
Boston
United Airlines
DIRECT
SFO
San Francisco
SFO
San Francisco
United Airlines
DIRECT
BOS
Boston
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One-way flights to San Francisco from Boston

6:52 PM - 6:52 PM
Hawaiian Airlines
0 Stops
6h 56m
BOS - SFO
$ 284
Kiwi
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6:00 AM - 6:00 AM
United Airlines
0 Stops
6h 45m
BOS - SFO
$ 566
Kiwi
Pick dates
11:55 AM - 8:36 PM
Sun Country Airlines
1 Stops
13h 59m
BOS - SFO
$ 682
Kiwi
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How to find the cheapest flight from Boston (BOS) to San Francisco (SFO)

Related info for your journey
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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.