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Cheap flights from St Louis (STL) 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 St Louis (STL) to San Antonio (SAT)

How to find the cheapest flight from St Louis (STL) to San Antonio (SAT)
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How to find the cheapest flight from St Louis (STL) to San Antonio (SAT)
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How to find the cheapest flight from St Louis (STL) to San Antonio (SAT)
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Cheap flights from St Louis to San Antonio in February , March 2026

28 Feb - 12 Mar $ 206.00
STL
St Louis
Frontier Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
Frontier Airlines
1 STOPS
STL
St Louis
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10 Feb - 04 Mar $ 833.00
STL
St Louis
Alaska Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
Alaska Airlines
1 STOPS
STL
St Louis
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13 Feb - 08 Mar $ 2,116.00
STL
St Louis
Hawaiian Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
Hawaiian Airlines
1 STOPS
STL
St Louis
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Last minute flights from St Louis to San Antonio

24 Feb - 28 Feb $ 277.00
STL
St Louis
Frontier Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
Frontier Airlines
1 STOPS
STL
St Louis
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25 Feb - 28 Feb $ 329.00
STL
St Louis
United Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
United Airlines
1 STOPS
STL
St Louis
Pick dates
22 Feb - 28 Feb $ 369.00
STL
St Louis
United Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
United Airlines
1 STOPS
STL
St Louis
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One-way flights to San Antonio from St Louis

3:49 PM - 9:52 PM
Spirit Airlines
1 Stops
8h 10m
STL - SAT
$ 88
Kiwi
Pick dates
6:00 AM - 9:36 AM
United Airlines
1 Stops
4h 47m
STL - SAT
$ 207
Kiwi
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4:42 PM - 8:10 PM
United Airlines
1 Stops
4h 39m
STL - SAT
$ 211
Kiwi
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How to find the cheapest flight from St Louis (STL) to San Antonio (SAT)

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