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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 October , November 2026

30 Oct - 06 Nov $ 471.00
STL
St Louis
Frontier Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
Frontier Airlines
1 STOPS
STL
St Louis
Pick dates
29 Oct - 06 Nov $ 471.00
STL
St Louis
Frontier Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
Frontier Airlines
1 STOPS
STL
St Louis
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29 Oct - 09 Nov $ 594.00
STL
St Louis
Frontier Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
Frontier Airlines
1 STOPS
STL
St Louis
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Last minute flights from St Louis to San Antonio

29 Oct - 01 Nov $ 618.00
STL
St Louis
Frontier Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
Frontier Airlines
2 STOPS
STL
St Louis
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24 Oct - 31 Oct $ 867.00
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 Oct - 01 Nov $ 1,442.00
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

1:28 PM - 4:47 PM
Frontier Airlines
1 Stops
8h 6m
STL - SAT
$ 342
Kiwi
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6:15 AM - 9:35 AM
United Airlines
1 Stops
4h 31m
STL - SAT
$ 371
Kiwi
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2:55 PM - 6:05 PM
United Airlines
1 Stops
4h 15m
STL - SAT
$ 378
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.