United Airlines Chicago to San Antonio Flights
Return flight: San Antonio – Chicago
Cheapflightsplus.com will find cheap United Airlines flights from Chicago to San Antonio. Compare airline ticket prices and book air tickets starting from $276 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 march: one-way - $276, two-way – $473.
Direct flights
Check prices for return flight
Cheap Flights from Chicago to San Antonio by United Airlines
Look at the list of plane tickets for the most popular direct and connecting flights by United Airlines, their prices start from $276. The fastest nonstop flight takes 3h 16m. The fastest connecting flight — 4h 58m.
| Price | Departure | Arrival | Flight Time | Airline | Flight |
|---|---|---|---|---|---|
| from $276 | 9:05 am Chicago O'Hare International | 12:21 pm San Antonio San Antonio | 3h 16m | United Airlines | UA2672 |
| from $282 | 12:45 pm Chicago O'Hare International | 5:43 pm San Antonio San Antonio | 4h 58m layover 0h 45m - Houston | United Airlines | UA2417 UA6135 |
| from $286 | 5:45 am Chicago O'Hare International | 1:27 pm San Antonio San Antonio | 7h 42m layover 3h 31m - Houston | United Airlines | UA2606 UA2378 |
| from $286 | 2:00 pm Chicago O'Hare International | 9:37 pm San Antonio San Antonio | 7h 37m layover 3h 22m - Houston | United Airlines | UA1373 UA2338 |
| from $286 | 3:59 pm Chicago O'Hare International | 9:37 pm San Antonio San Antonio | 5h 38m layover 1h 23m - Houston | United Airlines | UA725 UA2338 |
| from $286 | 9:20 am Chicago O'Hare International | 3:52 pm San Antonio San Antonio | 6h 32m layover 2h 17m - Houston | United Airlines | UA1851 UA2399 |
| from $286 | 5:45 am Chicago O'Hare International | 11:27 am San Antonio San Antonio | 5h 42m layover 1h 31m - Houston | United Airlines | UA2606 UA2337 |
| from $286 | 3:59 pm Chicago O'Hare International | 11:15 pm San Antonio San Antonio | 7h 16m layover 3h 6m - Houston | United Airlines | UA725 UA2142 |
| from $286 | 7:35 am Chicago O'Hare International | 1:27 pm San Antonio San Antonio | 5h 52m layover 1h 37m - Houston | United Airlines | UA1913 UA2378 |
| from $317 | 9:40 pm Chicago O'Hare International | 3:18 pm+1 день San Antonio San Antonio | 17h 38m layover 11h 13m - Newark | United Airlines | UA1633 UA1027 |
| from $317 | 8:15 pm Chicago O'Hare International | 3:18 pm+1 день San Antonio San Antonio | 19h 3m layover 12h 30m - Newark | United Airlines | UA1655 UA1027 |
| from $324 | 7:55 pm Chicago O'Hare International | 8:33 am+1 день San Antonio San Antonio | 12h 38m layover 8h 21m - Houston | United Airlines | UA483 UA6089 |
| from $324 | 9:30 pm Chicago O'Hare International | 5:43 pm+1 день San Antonio San Antonio | 20h 13m layover 16h 0m - Houston | United Airlines | UA2665 UA6135 |
| from $324 | 9:30 pm Chicago O'Hare International | 11:27 am+1 день San Antonio San Antonio | 13h 57m layover 9h 45m - Houston | United Airlines | UA2665 UA2337 |
| from $324 | 9:30 pm Chicago O'Hare International | 1:27 pm+1 день San Antonio San Antonio | 15h 57m layover 11h 45m - Houston | United Airlines | UA2665 UA2378 |
| from $346 | 10:35 am Chicago O'Hare International | 3:52 pm San Antonio San Antonio | 5h 17m layover 1h 2m - Houston | United Airlines | UA237 UA2399 |
Show All Flights
*Departure and arrival times are local. Prices are for one-way flights. Information refreshed on 02/23/2025
United Airlines Flight Schedule Chicago to San Antonio
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 |
|
|
10:35 am — 3:52 pm
|
10:35 am — 1:38 pm
UA237
United Airlines
Chicago — Houston
1h 2m stop
2:40 pm — 3:52 pm
UA2399
United Airlines
Houston — San Antonio
|
5h 17m including layover |
Find flight
from$346 |
|
|
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$282 |
|
|
12:45 pm — 9:37 pm
|
12:45 pm — 3:45 pm
UA2417
United Airlines
Chicago — Houston
4h 40m stop
8:25 pm — 9:37 pm
UA2338
United Airlines
Houston — San Antonio
|
8h 52m including layover |
Find flight
from$401 |
|
|
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 |
|
|
2:00 pm — 9:37 pm
|
2:00 pm — 5:03 pm
UA1373
United Airlines
Chicago — Houston
3h 22m stop
8:25 pm — 9:37 pm
UA2338
United Airlines
Houston — San Antonio
|
7h 37m including layover |
Find flight
from$286 |
|
|
2:35 pm — 9:04 pm
|
2:35 pm — 4:28 pm
UA1588
United Airlines
Chicago — Denver
1h 22m stop
5:50 pm — 9:04 pm
UA1762
United Airlines
Denver — San Antonio
|
6h 29m including layover |
Find flight
from$346 |
|
|
3:59 pm — 9:37 pm
|
3:59 pm — 7:02 pm
UA725
United Airlines
Chicago — Houston
1h 23m stop
8:25 pm — 9:37 pm
UA2338
United Airlines
Houston — San Antonio
|
5h 38m including layover |
Find flight
from$286 |
|
|
3:59 pm — 11:15 pm
|
3:59 pm — 7:02 pm
UA725
United Airlines
Chicago — Houston
3h 6m stop
10:08 pm — 11:15 pm
UA2142
United Airlines
Houston — San Antonio
|
7h 16m including layover |
Find flight
from$286 |
|
|
5:45 am — 1:27 pm
|
5:45 am — 8:44 am
UA2606
United Airlines
Chicago — Houston
3h 31m stop
12:15 pm — 1:27 pm
UA2378
United Airlines
Houston — San Antonio
|
7h 42m including layover |
Find flight
from$286 |
|
|
5:45 am — 11:27 am
|
5:45 am — 8:44 am
UA2606
United Airlines
Chicago — Houston
1h 31m stop
10:15 am — 11:27 am
UA2337
United Airlines
Houston — San Antonio
|
5h 42m including layover |
Find flight
from$286 |
|
|
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 |
|
|
7:35 am — 1:27 pm
|
7:35 am — 10:38 am
UA1913
United Airlines
Chicago — Houston
1h 37m stop
12:15 pm — 1:27 pm
UA2378
United Airlines
Houston — San Antonio
|
5h 52m including layover |
Find flight
from$286 |
|
|
7:55 pm — 8:33 am
+1 day
|
7:55 pm — 10:59 pm
UA483
United Airlines
Chicago — Houston
8h 21m stop
7:20 am — 8:33 am
UA6089
United Airlines
Houston — San Antonio
|
12h 38m including layover |
Find flight
from$324 |
|
|
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 |
|
|
8:45 am — 4:55 pm
|
8:45 am — 10:35 am
UA1599
United Airlines
Chicago — Denver
3h 5m stop
1:40 pm — 4:55 pm
UA1022
United Airlines
Denver — San Antonio
|
8h 10m including layover |
Find flight
from$346 |
|
|
9:20 am — 3:52 pm
|
9:20 am — 12:23 pm
UA1851
United Airlines
Chicago — Houston
2h 17m stop
2:40 pm — 3:52 pm
UA2399
United Airlines
Houston — San Antonio
|
6h 32m including layover |
Find flight
from$286 |
|
*Departure and arrival times are local. Last updated on 02/23/2025
Flight Information
There is 1 flight 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 9:40 pm. Nonstop flight is 3h 16m. The time difference between Chicago and San Antonio is 0h.
- The fastest flight 3h 16m
- Average flight time 3h 16m
- The earliest flight 10:35 am
- The latest flight 9:40 pm
- Distance 1047 ml
The cheapest months for traveling to San Antonio are february (from 276 $), january (from 282 $).
The cheapest flight by United Airlines that our users were able to find is $276. This airfare is economy class on one-way UA2672 flight for February 21, 2025 leaving O'Hare International in Chicago at 9:05 am, it includes all taxes and additional fees.
United Airlines Airplanes on the Route
List of the most popular United Airlines airplanes flying from Chicago to San Antonio:
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 1 direct flights every day from Chicago. Airlines and fares are below:
See more direct flights
Connecting Flights
List of flights with layovers (1 and more stops):
- from $258Find
- from $59Find
- Y4 - Volarisfrom $312Find
- VB - VivaAerobusfrom $332Find
- AM - Aeromexicofrom $357Find
- NK - Spirit Airlinesfrom $144Find
See more connecting flights
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