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Cheap flights from Chicago (CHI) 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 Chicago (CHI) to San Antonio (SAT)

How to find the cheapest flight from Chicago (CHI) to San Antonio (SAT)
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How to find the cheapest flight from Chicago (CHI) to San Antonio (SAT)
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How to find the cheapest flight from Chicago (CHI) to San Antonio (SAT)
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Cheap flights from Chicago to San Antonio in February , March 2026

23 Feb - 09 Mar $ 154.00
CHI
Chicago
Frontier Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
Frontier Airlines
1 STOPS
CHI
Chicago
Pick dates
10 Feb - 04 Mar $ 330.00
CHI
Chicago
Spirit Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
Spirit Airlines
1 STOPS
CHI
Chicago
Pick dates
11 Feb - 04 Mar $ 785.00
CHI
Chicago
Spirit Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
Spirit Airlines
1 STOPS
CHI
Chicago
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Last minute flights from Chicago to San Antonio

23 Feb - 28 Feb $ 203.00
CHI
Chicago
Spirit Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
Spirit Airlines
1 STOPS
CHI
Chicago
Pick dates
08 Feb - 28 Feb $ 363.00
CHI
Chicago
Spirit Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
Spirit Airlines
1 STOPS
CHI
Chicago
Pick dates
11 Feb - 28 Feb $ 863.00
CHI
Chicago
Spirit Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
Spirit Airlines
1 STOPS
CHI
Chicago
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One-way flights to San Antonio from Chicago

6:00 AM - 2:33 PM
Frontier Airlines
1 Stops
10h 18m
CHI - SAT
$ 77
Kiwi
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12:44 PM - 9:43 PM
Spirit Airlines
1 Stops
11h 8m
CHI - SAT
$ 250
Kiwi
Pick dates
4:00 PM - 4:00 PM
United Airlines
0 Stops
3h 9m
CHI - SAT
$ 457
Kiwi
Pick dates

How to find the cheapest flight from Chicago (CHI) to San Antonio (SAT)

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