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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)
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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 February , March 2026

25 Feb - 02 Mar $ 188.00
BOS
Boston
Frontier Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
Frontier Airlines
1 STOPS
BOS
Boston
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13 Feb - 10 Mar $ 888.00
BOS
Boston
Alaska Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
Alaska Airlines
1 STOPS
BOS
Boston
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12 Feb - 07 Mar $ 1,248.00
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 Feb - 28 Feb $ 271.00
BOS
Boston
Frontier Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
Frontier Airlines
2 STOPS
BOS
Boston
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13 Feb - 28 Feb $ 997.00
BOS
Boston
Hawaiian Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
Hawaiian Airlines
1 STOPS
BOS
Boston
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12 Feb - 28 Feb $ 1,063.00
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

4:22 PM - 9:52 PM
Spirit Airlines
1 Stops
8h 37m
BOS - SAT
$ 107
Kiwi
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6:00 AM - 9:43 PM
Spirit Airlines
2 Stops
18h 52m
BOS - SAT
$ 305
Kiwi
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6:00 AM - 3:18 PM
Frontier Airlines
1 Stops
12h 3m
BOS - SAT
$ 542
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.