Earn point on your loyalty program!arrow arc left

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

Know your dates, get live prices in seconds
airplane logo

pin logo

calendar
Departure
calendar backward
Return
airplane logo
1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
Save up to 31%
Book Flight + Hotel at the same time

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)
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.
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.

Cheap flights from St Louis to San Antonio in January , February 2026

28 Jan - 04 Feb $ 369.00
STL
St Louis
United Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
United Airlines
1 STOPS
STL
St Louis
Pick dates
21 Jan - 05 Feb $ 848.00
STL
St Louis
Hawaiian Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
Hawaiian Airlines
1 STOPS
STL
St Louis
Pick dates
17 Jan - 05 Feb $ 954.00
STL
St Louis
Hawaiian Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
Hawaiian Airlines
1 STOPS
STL
St Louis
Pick dates

Last minute flights from St Louis to San Antonio

28 Jan - 31 Jan $ 415.00
STL
St Louis
United Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
United Airlines
1 STOPS
STL
St Louis
Pick dates
22 Jan - 01 Feb $ 1,010.00
STL
St Louis
Alaska Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
Alaska Airlines
1 STOPS
STL
St Louis
Pick dates
17 Jan - 01 Feb $ 1,141.00
STL
St Louis
Hawaiian Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
Hawaiian Airlines
1 STOPS
STL
St Louis
Pick dates

One-way flights to San Antonio from St Louis

8:22 PM - 9:43 PM
Spirit Airlines
2 Stops
27h 30m
STL - SAT
$ 168
Kiwi
Pick dates
6:00 AM - 9:36 AM
United Airlines
1 Stops
4h 47m
STL - SAT
$ 207
Kiwi
Pick dates
4:42 PM - 8:10 PM
United Airlines
1 Stops
4h 39m
STL - SAT
$ 209
Kiwi
Pick dates

How to find the cheapest flight from St Louis (STL) to San Antonio (SAT)

Related info for your journey
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.
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.