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Cheap flights from Boston (BOS) to San Antonio (SAT)

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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 Antonio (SAT)

How to find the cheapest flight from Boston (BOS) to San Antonio (SAT)
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How to find the cheapest flight from Boston (BOS) to San Antonio (SAT)
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How to find the cheapest flight from Boston (BOS) to San Antonio (SAT)
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Cheap flights from Boston to San Antonio in July , August 2026

30 Jul - 02 Aug $ 629.00
BOS
Boston
United Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
United Airlines
1 STOPS
BOS
Boston
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31 Jul - 09 Aug $ 1,118.00
BOS
Boston
Frontier Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
Frontier Airlines
1 STOPS
BOS
Boston
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28 Jul - 10 Aug $ 1,615.00
BOS
Boston
Alaska Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
Alaska Airlines
1 STOPS
BOS
Boston
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Last minute flights from Boston to San Antonio

25 Jul - 31 Jul $ 737.00
BOS
Boston
United Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
United Airlines
1 STOPS
BOS
Boston
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25 Jul - 31 Jul $ 737.00
BOS
Boston
United Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
United Airlines
1 STOPS
BOS
Boston
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28 Jul - 01 Aug $ 1,562.00
BOS
Boston
Alaska Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
Alaska Airlines
1 STOPS
BOS
Boston
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One-way flights to San Antonio from Boston

12:35 PM - 3:56 PM
United Airlines
1 Stops
12h 20m
BOS - SAT
$ 405
Kiwi
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5:45 AM - 8:25 AM
United Airlines
1 Stops
6h 14m
BOS - SAT
$ 419
Kiwi
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5:47 AM - 9:39 AM
United Airlines
1 Stops
5h 59m
BOS - SAT
$ 512
Kiwi
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How to find the cheapest flight from Boston (BOS) to San Antonio (SAT)

Related info for your journey
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How to find the cheapest flight from Boston (BOS) to San Antonio (SAT)
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 Antonio (SAT)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.