Flights from Chicago to San Antonio

Our cheapest offers for flights from Chicago to San Antonio

Here you can compare cheap flights from Chicago (CHI) to San Antonio (SAT) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to San Antonio. Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
Best option
Chicago
San Antonio
Outbound
10/18/25
1 Stopover (MCO)
F93854, F91653
28h 04min
Return
11/17/25
1 Stopover (DEN)
F92355, F92210
07h 44min
Frontier Airlines
$264
Chicago
San Antonio
Outbound
10/18/25
1 Stopover (MCO)
F93854, F91653
28h 04min
Return
11/17/25
1 Stopover (DEN)
F92355, F92210
07h 44min
Frontier Airlines
$274
Prices based on recent searches, subject to last-minute changes
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Tips and tricks to help you find cheap flights from Chicago to San Antonio

Favorite airline: e.g. Delta, Frontier Airlines
The favorite airline for flights from Chicago to San Antonio is Delta.
Delta
42 %
Frontier Airlines
42 %
Volaris
17 %
Favourite connection: via Minneapolis
When booking flights from Chicago to San Antonio 67 % of travelers prefer to fly via Minneapolis.
Route
bookings
1 stopover Minneapolis - St. Paul International Airport, MN
05h 14min, from $ 383
67 %
1 stopover Dallas-Fort Worth International Airport, T
06h 08min, from $ 425
33 %

Important flight information

Flight information: Chicago - San Antonio

Roundtrip from $ 263,36
Flight duration min. 02:53 / max. 10:25
Return flight duration min. 02:35/ max. 07:45
Distance 1685 km
Flights per week 83
Departure airport Airport Chicago-IL, all airports (CHI)
Arrival airport Airport San Antonio International Airport, TX (SAT)
Destination country Flights to United States
Alternative routes to United States
Alternative flights to San Antonio
Flight destinations with a similar price
Flight destinations with a similar price