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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 March , April 2026

09 Mar - 08 Apr $ 269.00
CHI
Chicago
Spirit Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
Spirit Airlines
1 STOPS
CHI
Chicago
Pick dates
31 Mar - 14 Apr $ 384.00
CHI
Chicago
United Airlines
DIRECT
SAT
San Antonio
SAT
San Antonio
United Airlines
DIRECT
CHI
Chicago
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11 Mar - 08 Apr $ 942.00
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

09 Mar - 31 Mar $ 335.00
CHI
Chicago
Spirit Airlines
1 STOPS
SAT
San Antonio
SAT
San Antonio
Spirit Airlines
1 STOPS
CHI
Chicago
Pick dates
23 Mar - 31 Mar $ 502.00
CHI
Chicago
United Airlines
DIRECT
SAT
San Antonio
SAT
San Antonio
United Airlines
DIRECT
CHI
Chicago
Pick dates
11 Mar - 31 Mar $ 966.00
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

10:44 AM - 9:52 PM
Spirit Airlines
1 Stops
13h 15m
CHI - SAT
$ 150
Kiwi
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7:45 PM - 7:45 PM
United Airlines
0 Stops
3h 8m
CHI - SAT
$ 156
Kiwi
Pick dates
8:03 PM - 8:03 PM
United Airlines
0 Stops
3h 12m
CHI - SAT
$ 367
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.