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 $51 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 may: one-way - $51, two-way – $87.
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Below is a detailed 2024 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
10:00 am — 12:53 pm
10:00 am — 12:53 pm UA5342 United Airlines
Chicago — San Antonio
2h 53m
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from$150
10:15 am — 1:10 pm
10:15 am — 1:10 pm UA2164 United Airlines
Chicago — San Antonio
2h 55m
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from$51
12:50 pm — 3:46 pm
12:50 pm — 3:46 pm UA2267 United Airlines
Chicago — San Antonio
2h 56m
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from$51
12:57 pm — 3:54 pm
12:57 pm — 3:54 pm UA1957 United Airlines
Chicago — San Antonio
2h 57m
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from$150
7:35 pm — 10:29 pm
7:35 pm — 10:29 pm UA5393 United Airlines
Chicago — San Antonio
2h 54m
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from$51
7:41 pm — 10:47 pm
7:41 pm — 10:47 pm UA5764 United Airlines
Chicago — San Antonio
3h 6m
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from$150
7:45 pm — 10:26 pm
7:45 pm — 10:26 pm UA600 United Airlines
Chicago — San Antonio
2h 41m
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from$54
7:50 pm — 10:54 pm
7:50 pm — 10:54 pm UA3470 United Airlines
Chicago — San Antonio
3h 4m
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from$52
8:57 am — 11:58 am
8:57 am — 11:58 am UA5846 United Airlines
Chicago — San Antonio
3h 1m
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from$51
9:01 am — 11:53 am
9:01 am — 11:53 am UA4206 United Airlines
Chicago — San Antonio
2h 52m
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from$150
9:18 am — 12:13 pm
9:18 am — 12:13 pm UA3453 United Airlines
Chicago — San Antonio
2h 55m
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from$52
9:18 am — 12:02 pm
9:18 am — 12:02 pm UA5257 United Airlines
Chicago — San Antonio
2h 44m
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from$54
10:00 am — 3:33 pm
10:00 am — 12:45 pm UA2354 United Airlines
Chicago — Houston
1h 45m stop
2:30 pm — 3:33 pm UA2105 United Airlines
Houston — San Antonio
5h 33m
including layover
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from$52
11:41 am — 7:23 pm
11:41 am — 2:41 pm UA1660 United Airlines
Chicago — Houston
3h 39m stop
6:20 pm — 7:23 pm UA1793 United Airlines
Houston — San Antonio
7h 42m
including layover
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from$52
11:41 am — 5:33 pm
11:41 am — 2:41 pm UA1660 United Airlines
Chicago — Houston
1h 49m stop
4:30 pm — 5:33 pm UA552 United Airlines
Houston — San Antonio
5h 52m
including layover
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from$52
12:49 pm — 7:23 pm
12:49 pm — 3:32 pm UA354 United Airlines
Chicago — Houston
2h 48m stop
6:20 pm — 7:23 pm UA1793 United Airlines
Houston — San Antonio
6h 34m
including layover
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from$52
1:00 pm — 8:56 pm
1:00 pm — 4:06 pm UA1858 United Airlines
Chicago — Washington D.C.
2h 9m stop
6:15 pm — 8:56 pm UA1202 United Airlines
Washington D.C. — San Antonio
7h 56m
including layover
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from$164
1:00 pm — 7:15 pm
1:00 pm — 2:42 pm UA2110 United Airlines
Chicago — Denver
1h 9m stop
3:51 pm — 7:15 pm UA3717 United Airlines
Denver — San Antonio
6h 15m
including layover
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from$164
2:15 pm — 7:23 pm
2:15 pm — 4:55 pm UA432 United Airlines
Chicago — Houston
1h 25m stop
6:20 pm — 7:23 pm UA1793 United Airlines
Houston — San Antonio
5h 8m
including layover
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from$52
2:15 pm — 8:48 pm
2:15 pm — 4:55 pm UA432 United Airlines
Chicago — Houston
2h 50m stop
7:45 pm — 8:48 pm UA530 United Airlines
Houston — San Antonio
6h 33m
including layover
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from$52
3:50 pm — 9:26 pm
3:50 pm — 6:58 pm UA1008 United Airlines
Chicago — Houston
1h 26m stop
8:24 pm — 9:26 pm UA530 United Airlines
Houston — San Antonio
5h 36m
including layover
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from$153
3:50 pm — 10:33 pm
3:50 pm — 6:58 pm UA1008 United Airlines
Chicago — Houston
2h 32m stop
9:30 pm — 10:33 pm UA1291 United Airlines
Houston — San Antonio
6h 43m
including layover
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from$165
4:05 pm — 8:48 pm
4:05 pm — 6:48 pm UA1860 United Airlines
Chicago — Houston
57m stop
7:45 pm — 8:48 pm UA530 United Airlines
Houston — San Antonio
4h 43m
including layover
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from$52
4:05 pm — 10:33 pm
4:05 pm — 6:48 pm UA1860 United Airlines
Chicago — Houston
2h 42m stop
9:30 pm — 10:33 pm UA1291 United Airlines
Houston — San Antonio
6h 28m
including layover
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from$52
5:25 am — 1:05 pm
5:25 am — 7:04 am UA2273 United Airlines
Chicago — Denver
2h 56m stop
10:00 am — 1:05 pm UA1412 United Airlines
Denver — San Antonio
7h 40m
including layover
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from$77
5:50 pm — 10:33 pm
5:50 pm — 8:35 pm UA1598 United Airlines
Chicago — Houston
55m stop
9:30 pm — 10:33 pm UA1291 United Airlines
Houston — San Antonio
4h 43m
including layover
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from$52
6:00 am — 10:48 am
6:00 am — 8:45 am UA1754 United Airlines
Chicago — Houston
1h stop
9:45 am — 10:48 am UA527 United Airlines
Houston — San Antonio
4h 48m
including layover
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from$52
6:00 am — 1:03 pm
6:00 am — 8:45 am UA1754 United Airlines
Chicago — Houston
3h 15m stop
12:00 pm — 1:03 pm UA2290 United Airlines
Houston — San Antonio
7h 3m
including layover
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from$52
8:00 am — 3:33 pm
8:00 am — 10:40 am UA1883 United Airlines
Chicago — Houston
3h 50m stop
2:30 pm — 3:33 pm UA2105 United Airlines
Houston — San Antonio
7h 33m
including layover
Find flight
from$52
9:15 am — 3:42 pm
9:15 am — 12:07 pm UA352 United Airlines
Chicago — Houston
2h 29m stop
2:36 pm — 3:42 pm UA6094 United Airlines
Houston — San Antonio
6h 27m
including layover
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from$52
*Departure and arrival times are local. Last updated on 05/02/2024

Flight Information

There are 12 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 10:00 am to 9:45 pm. Nonstop flight is 2h 41m. The time difference between Chicago and San Antonio is 0h.

  • The fastest flight 2h 41m
  • Average flight time 2h 55m
  • The earliest flight 10:00 am
  • The latest flight 9:45 pm
  • Distance 1047 ml

The cheapest flight by United Airlines that our users were able to find is $51. This airfare is economy class on one-way UA5846 flight for October 1, 2020 leaving O'Hare International in Chicago at 8:57 am, it includes all taxes and additional fees.

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Other Popular Airlines on the Route

Besides United Airlines there are other 8 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 37 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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