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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 April , May 2026

29 Apr - 06 May $ 426.00
STL
St Louis
United Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
United Airlines
1 STOPS
STL
St Louis
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17 Apr - 06 May $ 1,050.00
STL
St Louis
Alaska Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
Alaska Airlines
1 STOPS
STL
St Louis
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16 Apr - 02 May $ 1,143.00
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

27 Apr - 30 Apr $ 356.00
STL
St Louis
Frontier Airlines
2 STOPS
SAT
San Antonio
SAT
San Antonio
Frontier Airlines
1 STOPS
STL
St Louis
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16 Apr - 01 May $ 1,238.00
STL
St Louis
Alaska Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
Alaska Airlines
1 STOPS
STL
St Louis
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16 Apr - 01 May $ 1,391.00
STL
St Louis
Alaska Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
Alaska Airlines
1 STOPS
STL
St Louis
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One-way flights to San Antonio from St Louis

6:00 AM - 9:43 AM
United Airlines
1 Stops
4h 50m
STL - SAT
$ 211
Kiwi
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4:49 PM - 7:50 PM
United Airlines
1 Stops
4h 14m
STL - SAT
$ 216
Kiwi
Pick dates
4:49 PM - 7:50 PM
United Airlines
1 Stops
4h 14m
STL - SAT
$ 251
Kiwi
Pick dates

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.