United Airlines Chicago to San Antonio Flights

Cheapflightsplus.com will find cheap United Airlines flights from Chicago to San Antonio. Compare airline ticket prices and book air tickets starting from $234 from trusted online travel agencies, web sites and directly from airlines. Check flights schedule of United Airlines, arrivals and departure details below.

Find Cheap Airfare Chicago (IL) — San Antonio (TX) by United Airlines

To find cheap tickets choose a day of your departure with attractive price on the graph below and click «Find flights». For round trip flights please click «Check prices for return flight». The cheapest airfare is in january: one-way - $234, two-way – $401.
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Below is a detailed 2025 flight schedule for today, tomorrow and all other days. It may vary depending on season and a day of the week of your desired trip. We recommend booking your itinerary at least 2 weeks prior your travel to get the best price and availability by the airline.
Departure Arrival Flight Details Flight Time Price
9:05 am — 12:21 pm
9:05 am — 12:21 pm UA2672 United Airlines
Chicago — San Antonio
3h 16m
Find flight
from$276
9:15 am — 12:29 pm
9:15 am — 12:29 pm UA1834 United Airlines
Chicago — San Antonio
3h 14m
Find flight
from$234
10:35 am — 3:42 pm
10:35 am — 1:38 pm UA2624 United Airlines
Chicago — Houston
52m stop
2:30 pm — 3:42 pm UA2399 United Airlines
Houston — San Antonio
5h 7m
including layover
Find flight
from$282
10:35 am — 5:44 pm
10:35 am — 1:38 pm UA2624 United Airlines
Chicago — Houston
2h 52m stop
4:30 pm — 5:44 pm UA6135 United Airlines
Houston — San Antonio
7h 9m
including layover
Find flight
from$283
12:45 pm — 7:22 pm
12:45 pm — 3:47 pm UA2417 United Airlines
Chicago — Houston
2h 23m stop
6:10 pm — 7:22 pm UA1477 United Airlines
Houston — San Antonio
6h 37m
including layover
Find flight
from$282
12:45 pm — 5:43 pm
12:45 pm — 3:47 pm UA2417 United Airlines
Chicago — Houston
45m stop
4:30 pm — 5:44 pm UA6135 United Airlines
Houston — San Antonio
4h 58m
including layover
Find flight
from$283
1:15 pm — 8:21 pm
1:15 pm — 4:13 pm UA2431 United Airlines
Chicago — Washington D.C.
1h 11m stop
5:24 pm — 8:21 pm UA1869 United Airlines
Washington D.C. — San Antonio
7h 6m
including layover
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from$341
1:20 pm — 8:19 pm
1:20 pm — 4:16 pm UA2649 United Airlines
Chicago — Washington D.C.
1h 9m stop
5:25 pm — 8:19 pm UA1869 United Airlines
Washington D.C. — San Antonio
6h 59m
including layover
Find flight
from$346
2:02 pm — 9:18 pm
2:02 pm — 5:04 pm UA1373 United Airlines
Chicago — Houston
3h 2m stop
8:06 pm — 9:18 pm UA1589 United Airlines
Houston — San Antonio
7h 16m
including layover
Find flight
from$282
2:02 pm — 7:22 pm
2:02 pm — 5:04 pm UA1373 United Airlines
Chicago — Houston
1h 6m stop
6:10 pm — 7:22 pm UA1477 United Airlines
Houston — San Antonio
5h 20m
including layover
Find flight
from$282
3:40 pm — 11:14 pm
3:40 pm — 6:43 pm UA2678 United Airlines
Chicago — Houston
3h 22m stop
10:05 pm — 11:14 pm UA6158 United Airlines
Houston — San Antonio
7h 34m
including layover
Find flight
from$282
3:40 pm — 9:18 pm
3:40 pm — 6:43 pm UA2678 United Airlines
Chicago — Houston
1h 23m stop
8:06 pm — 9:18 pm UA1589 United Airlines
Houston — San Antonio
5h 38m
including layover
Find flight
from$282
5:45 am — 11:07 am
5:45 am — 8:44 am UA2622 United Airlines
Chicago — Houston
1h 11m stop
9:55 am — 11:07 am UA2857 United Airlines
Houston — San Antonio
5h 22m
including layover
Find flight
from$282
5:45 am — 1:24 pm
5:45 am — 8:44 am UA2622 United Airlines
Chicago — Houston
3h 28m stop
12:12 pm — 1:24 pm UA492 United Airlines
Houston — San Antonio
7h 39m
including layover
Find flight
from$282
6:00 am — 3:19 pm
6:00 am — 9:05 am UA2343 United Airlines
Chicago — Newark
2h 54m stop
11:59 am — 3:19 pm UA1027 United Airlines
Newark — San Antonio
9h 19m
including layover
Find flight
from$346
6:30 am — 6:39 pm
6:30 am — 9:24 am UA1962 United Airlines
Chicago — San Francisco
3h 31m stop
12:55 pm — 6:39 pm UA5435 United Airlines
San Francisco — San Antonio
12h 9m
including layover
Find flight
from$702
7:10 am — 4:40 pm
7:10 am — 9:00 am UA711 United Airlines
Chicago — Denver
4h 26m stop
1:41 pm — 4:54 pm UA1022 United Airlines
Denver — San Antonio
9h 30m
including layover
Find flight
from$266
7:35 am — 3:42 pm
7:35 am — 10:38 am UA2482 United Airlines
Chicago — Houston
3h 52m stop
2:30 pm — 3:42 pm UA2399 United Airlines
Houston — San Antonio
8h 7m
including layover
Find flight
from$282
8:15 pm — 3:18 pm
+1 day
8:15 pm — 11:28 pm UA1655 United Airlines
Chicago — Newark
12h 30m stop
11:58 am — 3:18 pm UA1027 United Airlines
Newark — San Antonio
19h 3m
including layover
Find flight
from$317
8:50 am — 3:42 pm
8:50 am — 11:53 am UA307 United Airlines
Chicago — Houston
2h 37m stop
2:30 pm — 3:42 pm UA2399 United Airlines
Houston — San Antonio
6h 52m
including layover
Find flight
from$282
9:45 pm — 11:16 am
+1 day
9:45 pm — 0:58 am UA2415 United Airlines
Chicago — Newark
6h 47m stop
7:45 am — 11:16 am UA591 United Airlines
Newark — San Antonio
13h 31m
including layover
Find flight
from$270
*Departure and arrival times are local. Last updated on 12/22/2024

Flight Information

There are 2 flights by United Airlines from Chicago to San Antonio every week with departures from Chicago FSS, Midway, O'Hare International, Chicago NAS, Merrill C Meigs (closed), Dupage County, Pal-Waukee. All flights arrive at San Antonio, Kelly AFB, Stinson Municipal, Randolph AFB, Martindale AAF.

Departures start from 10:35 am to 9:45 pm. Nonstop flight is 3h 14m. The time difference between Chicago and San Antonio is 0h.

  • The fastest flight 3h 14m
  • Average flight time 3h 15m
  • The earliest flight 10:35 am
  • The latest flight 9:45 pm
  • Distance 1047 ml

The cheapest months for traveling to San Antonio are january (from 234 $), december (from 240 $), february (from 269 $).

The most expensive and popular months are november (from 303 $), february (from 269 $), december (from 240 $).

The cheapest flight by United Airlines that our users were able to find is $234. This airfare is economy class on one-way UA1834 flight for January 7, 2025 leaving O'Hare International in Chicago at 9:15 am, it includes all taxes and additional fees.

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Other Popular Airlines on the Route

Besides United Airlines there are other 6 airline carriers between Chicago and San Antonio. Please review schedules and prices from the most popular airlines to find the best airfare deals from Chicago to San Antonio.

Nonstop flights

There are 2 direct flights every day from Chicago. Airlines and fares are below:

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Connecting Flights

List of flights with layovers (1 and more stops):

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How to book an air ticket yourself?

How to book an air 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 airfare.
  • 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.

    To find a plane ticket, please select dates.

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