Cheap Flights from Chicago, IL to San Antonio, TX from $92
On Cheapflightsplus.com you will find 7 direct and 500 connecting flights from Chicago to San Antonio. You can compare airfare deals from 7 airlines and multiple travel sites from $92, book and save on cheap plane tickets and last minute offers. Also check out CHI-SAT flight schedule to find best flight time, convenient departure and arrival airports.
Flight Information
Below we will explain in detail what the flights cost on the destination from Chicago to San Antonio depends on and how to choose the most interesting flight option for you.
Distance between Chicago and San Antonio is 1684 miles. Time difference between the cities is 0h. Airplanes depart 05:00 to 22:15 from 7 Chicago airports and arrive 05:00 to 22:15 to 5 San Antonio airports. Average flight time is 2h 58m.
- The fastest flight 2h 54m
- Average flight time 2h 58m
- The earliest flight 05:00
- The latest flight 22:15
- Distance 1047 ml
Best Flights from Chicago to San Antonio Today
| Price | Departure | Arrival | Flight Duration | Airline | Flight |
|---|---|---|---|---|---|
| from $194 | 19:40 Chicago O'Hare International | 22:38 San Antonio San Antonio | 2h 58m | United Airlines | UA2148 |
| from $465 | 09:23 Chicago O'Hare International | 12:23 San Antonio San Antonio | 3h 0m | United Airlines | UA1851 |
| from $92 | 06:00 Chicago O'Hare International | 11:14 San Antonio San Antonio | 5h 14m layover 0h 55m - Atlanta | Spirit Airlines | NK1195 NK1196 |
| from $102 | 05:10 Chicago O'Hare International | 11:42 San Antonio San Antonio | 6h 32m layover 1h 42m - Atlanta | Frontier Airlines | F91596 F94809 |
| from $125 | 11:21 Chicago O'Hare International | 18:33+1 день San Antonio San Antonio | 31h 12m layover 21h 52m - Dallas 1h 5m - Las Vegas | Spirit Airlines | NK1633 NK1268 NK1586 |
| from $144 | 20:36 Chicago Midway | 22:51+1 день San Antonio San Antonio | 26h 15m layover 18h 24m - Fletcher 1h 6m - Miami | Allegiant Air | G4248 G4495 NK2227 |
The cheapest months to travel to San Antonio are july (from 92 $), august (from 92 $), may (from 102 $).
The most expensive months are december (from 294 $), october (from 111 $), september (from 106 $).
What is the lowest airfare Chicago to San Antonio?
The cheapest plane ticket found by our users is $92. This airfare is for economy class on one-way NK1115 flight by Spirit Airlines for August 8, 2025 which leaves O'Hare International in Chicago at 18:01 am and arrives at San Antonio San Antonio at 23:38.
Flight Schedule Chicago (Illinois) to San Antonio (Texas)
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Popular Airlines on the Route
The flight Chicago — San Antonio is served by 7 regular airlines and 4 low-cost airlines. Most of the flights on this route are operated by Alaska Airlines - 18 departures per week at the price of from $ 203 . And the most expensive tickets are offered by United Airlines airline - from $ 671.
Direct flights
There are 7 nonstop flights on the route. The fastest direct flight is UA406 by United Airlines takes 2h 54m and the cheapest is NK1115 by Spirit Airlines for $194.
- UA - United Airlinesfrom $194Find
Connecting Flights
There are 500 flights with layovers on the route. The fastest connecting flight is UA256 by United Airlines takes 4h 37m and the cheapest is NK1115 by Spirit Airlines for $92.
- AS - Alaska Airlinesfrom $203Find
- F9 - Frontier Airlinesfrom $102Find
- SY - Sun Country Airlinesfrom $144Find
- HA - Hawaiian Airlinesfrom $194Find
- UA - United Airlinesfrom $195Find
- NK - Spirit Airlinesfrom $92Find
- G4 - Allegiant Airfrom $144Find
Airports
You can fly from Chicago to San Antonio from 7 airports (O'Hare International, Midway, Dupage County, Chicago FSS, Merrill C Meigs (closed), Pal-Waukee, Chicago NAS).
Chicago airports
- O'Hare International-ORDfrom $92Find
- Midway-MDWfrom $106Find
- Dupage County-DPAFind
- Chicago FSS-CHIFind
- Merrill C Meigs (closed)-CGXFind
- Pal-Waukee-PWKFind
- Chicago NAS-NOHFind
San Antonio airports
- Randolph AFB-RNDFind
- Martindale AAF-MDAFind
- San Antonio-SATFind
- Kelly AFB-SKFFind
- Stinson Municipal-SSFFind
Airplanes
There are flights to San Antonio from Chicago by 7 airlines that use 0 aircraft brands. They range from huge modern airplanes to small-sized.
Top Domestic Destinations from Chicago
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Top International Destinations from Chicago
Our state-of-the art metasearch will definitely provide you with the best airfare on international flights. We’re proud to partner with many reliable travel suppliers located outside the US what gives us an opportunity to offer the most competitive prices on far destinations.
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How to book a plane ticket yourself?
- Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
- Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
- Click «Buy» when you are ready — our system will redirect you to the site that sells the selected flight ticket.
- Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
- That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.
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