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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 August , September 2026

31 Aug - 15 Sep $ 449.00
BOS
Boston
United Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
United Airlines
1 STOPS
BOS
Boston
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26 Aug - 10 Sep $ 1,224.00
BOS
Boston
Alaska Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
Alaska Airlines
1 STOPS
BOS
Boston
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17 Aug - 10 Sep $ 1,478.00
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

27 Aug - 31 Aug $ 579.00
BOS
Boston
United Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
United Airlines
1 STOPS
BOS
Boston
Pick dates
17 Aug - 31 Aug $ 659.00
BOS
Boston
United Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
United Airlines
1 STOPS
BOS
Boston
Pick dates
17 Aug - 31 Aug $ 659.00
BOS
Boston
United Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
United Airlines
1 STOPS
BOS
Boston
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One-way flights to San Antonio from Boston

5:45 AM - 8:25 AM
United Airlines
1 Stops
6h 14m
BOS - SAT
$ 364
Kiwi
Pick dates
5:38 PM - 9:35 PM
United Airlines
1 Stops
6h 1m
BOS - SAT
$ 400
Kiwi
Pick dates
5:38 PM - 9:35 PM
United Airlines
1 Stops
6h 1m
BOS - SAT
$ 400
Kiwi
Pick dates

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.