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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 May , June 2026

30 May - 06 Jun $ 582.00
STL
St Louis
United Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
United Airlines
1 STOPS
STL
St Louis
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24 May - 09 Jun $ 1,043.00
STL
St Louis
Alaska Airlines
2 STOPS
SAT
San Antonio
SAT
San Antonio
Alaska Airlines
1 STOPS
STL
St Louis
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23 May - 09 Jun $ 1,188.00
STL
St Louis
Alaska Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
Alaska Airlines
1 STOPS
STL
St Louis
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Last minute flights from St Louis to San Antonio

23 May - 31 May $ 611.00
STL
St Louis
United Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
United Airlines
1 STOPS
STL
St Louis
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23 May - 31 May $ 611.00
STL
St Louis
United Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
United Airlines
1 STOPS
STL
St Louis
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23 May - 31 May $ 635.00
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

6:00 AM - 9:40 AM
United Airlines
1 Stops
4h 47m
STL - SAT
$ 296
Kiwi
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6:00 AM - 9:40 AM
United Airlines
1 Stops
4h 47m
STL - SAT
$ 297
Kiwi
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6:30 PM - 9:40 PM
United Airlines
1 Stops
4h 12m
STL - SAT
$ 394
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.