Cheap Flights from Chicago, IL to San Antonio, TX from $97
Return flight: San Antonio – Chicago
On Cheapflightsplus.com you will find 4 direct and 296 connecting flights from Chicago to San Antonio. You can compare airfare deals from 7 airlines and multiple travel sites from $97, 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.
Find One-Way and Round-Trip Chicago to San Antonio Flight Deals
To find the cheapest one way airline ticket select the date with the lowest price on the calendar below and click «Find Flights».
To search for round-trip flight deals click on the link «Check prices for return flights» and select the date of the return flight.
Cheapest flights in November: $97 (one-way), $166 (round-trip).
Direct flights
Check prices for return flight
Best Flights from Chicago to San Antonio Today
Take a look at the list of non stop flights and flights with layovers from Chicago to San Antonio with the lowest price of $97. The fastest direct flight takes 2h 58m and the fastest connecting – 4h 37m.
| Price | Departure | Arrival | Flight Duration | Airline | Flight |
|---|---|---|---|---|---|
| from $204 | 19:40 Chicago O'Hare International | 22:38 San Antonio San Antonio | 2h 58m | United Airlines | UA2148 |
| from $97 | 06:00 Chicago O'Hare International | 11:14 San Antonio San Antonio | 5h 14m layover 0h 55m - Atlanta | Spirit Airlines | NK1195 NK1196 |
| from $97 | 18:01 Chicago O'Hare International | 23:38 San Antonio San Antonio | 5h 37m layover 1h 5m - Atlanta | Spirit Airlines | NK1115 NK1358 |
| from $102 | 08:00 Chicago O'Hare International | 23:30 San Antonio San Antonio | 15h 30m layover 8h 13m - Los Angeles | Spirit Airlines | NK3016 NK848 |
| from $102 | 06:45 Chicago O'Hare International | 23:30 San Antonio San Antonio | 16h 45m layover 9h 32m - Los Angeles | Spirit Airlines | NK467 NK848 |
| from $112 | 07:20 Chicago O'Hare International | 14:00 San Antonio San Antonio | 6h 40m layover 1h 34m - Denver | Frontier Airlines | F91483 F92356 |
| from $113 | 18:20 Chicago O'Hare International | 13:06+1 день San Antonio San Antonio | 18h 46m layover 11h 17m - Los Angeles | Spirit Airlines | NK1117 NK1273 |
| from $121 | 19:39 Chicago O'Hare International | 23:25+1 день San Antonio San Antonio | 27h 46m layover 22h 11m - Orlando | Spirit Airlines | NK507 NK446 |
| from $132 | 16:37 Chicago O'Hare International | 08:05+1 день San Antonio San Antonio | 15h 28m layover 9h 36m - Orlando | Frontier Airlines | F92792 F91653 |
| from $132 | 06:40 Chicago O'Hare International | 13:06+1 день San Antonio San Antonio | 30h 26m layover 23h 2m - Los Angeles | Spirit Airlines | NK1104 NK1273 |
| from $131 | 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 $150 | 15:29 Chicago O'Hare International | 11:14+1 день San Antonio San Antonio | 19h 45m layover 1h 1m - Miami 11h 14m - Atlanta | Spirit Airlines | NK867 NK3379 NK1196 |
| from $150 | 08:00 Chicago O'Hare International | 11:14+1 день San Antonio San Antonio | 27h 14m layover 0h 37m - Los Angeles 15h 19m - Atlanta | Spirit Airlines | NK3016 NK3341 NK1196 |
| from $150 | 08:00 Chicago O'Hare International | 11:14+1 день San Antonio San Antonio | 27h 14m layover 3h 32m - Los Angeles 12h 24m - Atlanta | Spirit Airlines | NK3016 NK836 NK1196 |
| from $150 | 06:45 Chicago O'Hare International | 11:14+1 день San Antonio San Antonio | 28h 29m layover 4h 51m - Los Angeles 12h 24m - Atlanta | Spirit Airlines | NK467 NK836 NK1196 |
| from $158 | 21:40 Chicago O'Hare International | 23:38+1 день San Antonio San Antonio | 25h 58m layover 6h 36m - Houston 12h 1m - Atlanta | Spirit Airlines | NK1180 NK1466 NK1358 |
Show all tickets
*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on July 13, 2025
Flight Schedule Chicago (Illinois) to San Antonio (Texas)
Full flight schedule will help you in detecting at what time planes fly from Chicago to San Antonio. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.
| Departure | Arrival | Flight Details | Flight Duration | Price |
|---|---|---|---|---|
|
08:45 — 11:45
|
08:45 — 11:45
UA490
United Airlines
Chicago — San Antonio
|
3h |
Find flight
from$204 |
|
|
13:05 — 16:03
|
13:05 — 16:03
UA2479
United Airlines
Chicago — San Antonio
|
2h 58m |
Find flight
from$205 |
|
|
13:20 — 16:26
|
13:20 — 16:26
UA5536
United Airlines
Chicago — San Antonio
|
3h 6m |
Find flight
from$215 |
|
|
19:40 — 22:38
|
19:40 — 22:38
UA2148
United Airlines
Chicago — San Antonio
|
2h 58m |
Find flight
from$204 |
|
|
06:00 — 11:14
|
06:00 — 08:59
NK1195
Spirit Airlines
Chicago — Atlanta
55m stop
09:54 — 11:14
NK1196
Spirit Airlines
Atlanta — San Antonio
|
5h 14m including layover |
Find flight
from$97 |
|
|
06:45 — 23:30
|
06:45 — 09:07
NK467
Spirit Airlines
Chicago — Los Angeles
9h 32m stop
18:39 — 23:30
NK848
Spirit Airlines
Los Angeles — San Antonio
|
16h 45m including layover |
Find flight
from$102 |
|
|
07:00 — 18:02
|
06:00 — 08:02
F91483
Frontier Airlines
Chicago — Denver
5h 52m stop
15:20 — 18:36
F92098
Frontier Airlines
Denver — San Antonio
|
11h 2m including layover |
Find flight
from$132 |
|
|
07:20 — 14:00
|
07:20 — 09:09
F91483
Frontier Airlines
Chicago — Denver
1h 34m stop
10:43 — 14:00
F92356
Frontier Airlines
Denver — San Antonio
|
6h 40m including layover |
Find flight
from$112 |
|
|
08:00 — 23:30
|
08:00 — 10:26
NK3016
Spirit Airlines
Chicago — Los Angeles
8h 13m stop
18:39 — 23:30
NK848
Spirit Airlines
Los Angeles — San Antonio
|
15h 30m including layover |
Find flight
from$102 |
|
|
10:00 — 19:43
|
10:00 — 13:39
NK1113
Spirit Airlines
Chicago — Orlando
4h 5m stop
17:44 — 19:43
NK1356
Spirit Airlines
Orlando — San Antonio
|
9h 43m including layover |
Find flight
from$174 |
|
|
15:21 — 05:04
+1 day
|
15:21 — 17:16
NK188
Spirit Airlines
Chicago — Las Vegas
7h 14m stop
00:30 — 05:04
NK1058
Spirit Airlines
Las Vegas — San Antonio
|
13h 43m including layover |
Find flight
from$153 |
|
|
16:37 — 08:05
+1 day
|
09:17 — 13:11
F92792
Frontier Airlines
Chicago — Orlando
9h 36m stop
07:40 — 09:47
F91653
Frontier Airlines
Orlando — San Antonio
|
15h 28m including layover |
Find flight
from$132 |
|
|
17:10 — 17:43
+1 day
|
17:10 — 20:28
NK328
Spirit Airlines
Chicago — Newark
18h 19m stop
14:47 — 17:43
NK3905
Spirit Airlines
Newark — San Antonio
|
24h 33m including layover |
Find flight
from$171 |
|
|
18:01 — 23:38
|
18:01 — 21:07
NK1115
Spirit Airlines
Chicago — Atlanta
1h 5m stop
22:12 — 23:38
NK1358
Spirit Airlines
Atlanta — San Antonio
|
5h 37m including layover |
Find flight
from$97 |
|
|
18:20 — 13:06
+1 day
|
18:20 — 20:53
NK1117
Spirit Airlines
Chicago — Los Angeles
11h 17m stop
08:10 — 13:06
NK1273
Spirit Airlines
Los Angeles — San Antonio
|
18h 46m including layover |
Find flight
from$113 |
|
|
19:39 — 23:25
+1 day
|
19:39 — 23:32
NK507
Spirit Airlines
Chicago — Orlando
22h 11m stop
21:43 — 23:25
NK446
Spirit Airlines
Orlando — San Antonio
|
27h 46m including layover |
Find flight
from$121 |
|
|
20:12 — 17:43
+1 day
|
20:12 — 23:31
NK919
Spirit Airlines
Chicago — Newark
15h 16m stop
14:47 — 17:43
NK3905
Spirit Airlines
Newark — San Antonio
|
21h 31m including layover |
Find flight
from$175 |
|
|
05:05 — 11:14
+1 day
|
05:05 — 09:10
NK19
Spirit Airlines
Chicago — Miami
5h 17m stop
14:27 — 16:25
NK3179
Spirit Airlines
Miami — Atlanta
17h 29m stop
09:54 — 11:14
NK1196
Spirit Airlines
Atlanta — San Antonio
|
30h 9m including layover |
Find flight
from$150 |
|
|
05:05 — 23:25
+1 day
|
05:05 — 09:10
NK19
Spirit Airlines
Chicago — Miami
12h 38m stop
21:48 — 23:00
NK676
Spirit Airlines
Miami — Orlando
22h 43m stop
21:43 — 23:25
NK446
Spirit Airlines
Orlando — San Antonio
|
42h 20m including layover |
Find flight
from$173 |
|
|
08:00 — 11:14
+1 day
|
08:00 — 10:26
NK3016
Spirit Airlines
Chicago — Los Angeles
37m stop
11:03 — 18:35
NK3341
Spirit Airlines
Los Angeles — Atlanta
15h 19m stop
09:54 — 11:14
NK1196
Spirit Airlines
Atlanta — San Antonio
|
27h 14m including layover |
Find flight
from$150 |
|
|
09:12 — 18:33
+1 day
|
09:12 — 11:23
G43081
Allegiant Air
Chicago — Fort Walton Beach
9h 45m stop
21:08 — 23:36
G4126
Allegiant Air
Fort Walton Beach — Las Vegas
14h 15m stop
13:51 — 18:33
NK1586
Spirit Airlines
Las Vegas — San Antonio
|
33h 21m including layover |
Find flight
from$185 |
|
|
11:21 — 18:33
+1 day
|
11:21 — 13:51
NK1633
Spirit Airlines
Chicago — Dallas
21h 52m stop
11:43 — 12:46
NK1268
Spirit Airlines
Dallas — Las Vegas
1h 5m stop
13:51 — 18:33
NK1586
Spirit Airlines
Las Vegas — San Antonio
|
31h 12m including layover |
Find flight
from$131 |
|
|
13:03 — 11:14
+1 day
|
13:03 — 16:51
NK1108
Spirit Airlines
Chicago — Orlando
5h 9m stop
22:00 — 23:15
NK3136
Spirit Airlines
Orlando — Atlanta
10h 39m stop
09:54 — 11:14
NK1196
Spirit Airlines
Atlanta — San Antonio
|
22h 11m including layover |
Find flight
from$174 |
|
|
14:46 — 23:25
+1 day
|
14:46 — 16:59
NK1835
Spirit Airlines
Chicago — New Orleans
4h 5m stop
21:04 — 23:59
NK433
Spirit Airlines
New Orleans — Orlando
21h 44m stop
21:43 — 23:25
NK446
Spirit Airlines
Orlando — San Antonio
|
32h 39m including layover |
Find flight
from$158 |
|
|
15:29 — 11:14
+1 day
|
15:29 — 19:39
NK867
Spirit Airlines
Chicago — Miami
1h 1m stop
20:40 — 22:40
NK3379
Spirit Airlines
Miami — Atlanta
11h 14m stop
09:54 — 11:14
NK1196
Spirit Airlines
Atlanta — San Antonio
|
19h 45m including layover |
Find flight
from$150 |
|
|
16:30 — 23:30
+1 day
|
16:30 — 19:13
NK1339
Spirit Airlines
Chicago — Houston
3h 49m stop
23:02 — 00:25
NK2395
Spirit Airlines
Houston — Los Angeles
18h 14m stop
18:39 — 23:30
NK848
Spirit Airlines
Los Angeles — San Antonio
|
31h including layover |
Find flight
from$173 |
|
|
19:39 — 17:16
+1 day
|
19:39 — 23:32
NK507
Spirit Airlines
Chicago — Orlando
11h 39m stop
11:11 — 12:12
NK645
Spirit Airlines
Orlando — Nashville
2h 49m stop
15:01 — 17:16
NK2038
Spirit Airlines
Nashville — San Antonio
|
21h 37m including layover |
Find flight
from$183 |
|
|
20:53 — 23:30
+1 day
|
20:53 — 23:40
NK1150
Spirit Airlines
Chicago — Houston
6h 5m stop
05:45 — 07:06
NK801
Spirit Airlines
Houston — Los Angeles
11h 33m stop
18:39 — 23:30
NK848
Spirit Airlines
Los Angeles — San Antonio
|
26h 37m including layover |
Find flight
from$173 |
|
|
21:40 — 23:38
+1 day
|
21:40 — 00:29
NK1180
Spirit Airlines
Chicago — Houston
6h 36m stop
07:05 — 10:11
NK1466
Spirit Airlines
Houston — Atlanta
12h 1m stop
22:12 — 23:38
NK1358
Spirit Airlines
Atlanta — San Antonio
|
25h 58m including layover |
Find flight
from$158 |
|
*Departure and arrival times - local. Updated on July 13, 2025
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 21:50 from 7 Chicago airports and arrive 05:00 to 21:50 to 5 San Antonio airports. Average flight time is 2h 59m.
- The fastest flight 2h 58m
- Average flight time 2h 59m
- The earliest flight 05:00
- The latest flight 21:50
- Distance 1047 ml
The cheapest months to travel to San Antonio are july (from 97 $), august (from 97 $), september (from 112 $).
The most expensive months are december (from 309 $), june (from 123 $), may (from 121 $).
What is the lowest airfare Chicago to San Antonio?
The cheapest plane ticket found by our users is $97. This airfare is for economy class on one-way NK1115 flight by Spirit Airlines for July 24, 2025 which leaves O'Hare International in Chicago at 18:01 am and arrives at San Antonio San Antonio at 23:38.
Economy class
$97
Business class
?
First class
?
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 - 10 departures per week at the price of from $ 214 . And the most expensive tickets are offered by United Airlines airline - from $ 706.
Direct flights
There are 4 nonstop flights on the route. The fastest direct flight is UA2148 by United Airlines takes 2h 58m and the cheapest is NK1115 by Spirit Airlines for $204.
- UA - United Airlinesfrom $204Find
See more direct flights
Connecting Flights
There are 296 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 $97.
- AS - Alaska Airlinesfrom $214Find
- F9 - Frontier Airlinesfrom $112Find
- SY - Sun Country Airlinesfrom $299Find
- HA - Hawaiian Airlinesfrom $204Find
- UA - United Airlinesfrom $205Find
- NK - Spirit Airlinesfrom $97Find
- G4 - Allegiant Airfrom $185Find
See more connecting flights
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 $97Find
- Midway-MDWfrom $185Find
- 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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