Cheap Flights from San Antonio, TX to Chicago, IL from $72
Return flight: Chicago – San Antonio
On Cheapflightsplus.com you will find 6 direct and 318 connecting flights from San Antonio to Chicago. You can compare airfare deals from 6 airlines and multiple travel sites from $72, book and save on cheap plane tickets and last minute offers. Also check out SAT-CHI flight schedule to find best flight time, convenient departure and arrival airports.
Find One-Way and Round-Trip San Antonio to Chicago 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: $72 (one-way), $123 (round-trip).
Direct flights
Check prices for return flight
Best Flights from San Antonio to Chicago Today
Take a look at the list of non stop flights and flights with layovers from San Antonio to Chicago with the lowest price of $72. The fastest direct flight takes 2h 51m and the fastest connecting – 4h 40m.
| Price | Departure | Arrival | Flight Duration | Airline | Flight |
|---|---|---|---|---|---|
| from $148 | 17:08 San Antonio San Antonio | 19:59 Chicago O'Hare International | 2h 51m | United Airlines | UA697 |
| from $72 | 20:48 San Antonio San Antonio | 07:04+1 день Chicago O'Hare International | 10h 16m layover 5h 44m - Atlanta | Spirit Airlines | NK1357 NK1116 |
| from $72 | 12:09 San Antonio San Antonio | 22:28 Chicago O'Hare International | 10h 19m layover 5h 45m - Atlanta | Spirit Airlines | NK1197 NK1200 |
| from $80 | 10:16 San Antonio San Antonio | 08:07+1 день Chicago O'Hare International | 21h 51m layover 15h 55m - Orlando | Frontier Airlines | F91654 F93043 |
| from $84 | 14:55 San Antonio San Antonio | 23:53 Chicago O'Hare International | 8h 58m layover 3h 59m - Denver | Frontier Airlines | F92355 F93172 |
| from $87 | 14:50 San Antonio San Antonio | 23:31 Chicago O'Hare International | 8h 41m layover 1h 22m - Los Angeles | Spirit Airlines | NK849 NK3010 |
| from $88 | 14:11 San Antonio San Antonio | 05:25+1 день Chicago O'Hare International | 15h 14m layover 7h 49m - Los Angeles | Spirit Airlines | NK1274 NK1103 |
| from $94 | 17:38 San Antonio San Antonio | 23:18 Chicago Midway | 5h 40m layover 1h 0m - Atlanta | Frontier Airlines | F94810 F92779 |
| from $95 | 14:11 San Antonio San Antonio | 16:28+1 день Chicago O'Hare International | 26h 17m layover 18h 47m - Los Angeles | Spirit Airlines | NK1274 NK1105 |
| from $96 | 18:13 San Antonio San Antonio | 15:33+1 день Chicago O'Hare International | 21h 20m layover 17h 4m - Nashville | Spirit Airlines | NK2039 NK2028 |
| from $99 | 20:14 San Antonio San Antonio | 11:41+1 день Chicago Midway | 15h 27m layover 10h 30m - Denver | Frontier Airlines | F92097 F92210 |
| from $110 | 20:48 San Antonio San Antonio | 17:10+1 день Chicago O'Hare International | 20h 22m layover 7h 4m - Atlanta 6h 6m - Dallas | Spirit Airlines | NK1357 NK1378 NK1634 |
| from $112 | 12:09 San Antonio San Antonio | 08:38+1 день Chicago O'Hare International | 20h 29m layover 7h 11m - Atlanta 7h 4m - Baltimore | Spirit Airlines | NK1197 NK1911 NK2439 |
| from $112 | 12:09 San Antonio San Antonio | 17:13+1 день Chicago O'Hare International | 29h 4m layover 17h 14m - Atlanta 4h 30m - Houston | Spirit Airlines | NK1197 NK1111 NK1338 |
| from $112 | 12:09 San Antonio San Antonio | 17:13+1 день Chicago O'Hare International | 29h 4m layover 18h 56m - Atlanta 2h 47m - Houston | Spirit Airlines | NK1197 NK3156 NK1338 |
| from $127 | 05:20 San Antonio San Antonio | 22:28 Chicago O'Hare International | 17h 8m layover 1h 1m - Orlando 9h 36m - Atlanta | Spirit Airlines | NK447 NK3377 NK1200 |
Show all tickets
*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on July 02, 2025
Flight Schedule San Antonio (Texas) to Chicago (Illinois)
Full flight schedule will help you in detecting at what time planes fly from San Antonio to Chicago. 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 |
|---|---|---|---|---|
|
06:30 — 09:29
|
06:30 — 09:29
UA2008
United Airlines
San Antonio — Chicago
|
2h 59m |
Find flight
from$150 |
|
|
06:40 — 09:37
|
06:40 — 09:37
UA2629
United Airlines
San Antonio — Chicago
|
2h 57m |
Find flight
from$148 |
|
|
06:48 — 09:48
|
06:48 — 09:48
UA1332
United Airlines
San Antonio — Chicago
|
3h |
Find flight
from$148 |
|
|
12:57 — 15:52
|
12:57 — 15:52
UA1905
United Airlines
San Antonio — Chicago
|
2h 55m |
Find flight
from$148 |
|
|
17:08 — 19:59
|
17:08 — 19:59
UA697
United Airlines
San Antonio — Chicago
|
2h 51m |
Find flight
from$148 |
|
|
17:08 — 20:10
|
17:08 — 20:10
UA5869
United Airlines
San Antonio — Chicago
|
3h 2m |
Find flight
from$156 |
|
|
05:20 — 14:15
|
05:20 — 09:06
NK447
Spirit Airlines
San Antonio — Orlando
3h 2m stop
12:08 — 14:15
NK3201
Spirit Airlines
Orlando — Chicago
|
8h 55m including layover |
Find flight
from$80 |
|
|
05:20 — 18:43
|
05:20 — 09:06
NK447
Spirit Airlines
San Antonio — Orlando
7h 27m stop
16:33 — 18:43
NK506
Spirit Airlines
Orlando — Chicago
|
13h 23m including layover |
Find flight
from$80 |
|
|
06:00 — 14:16
|
06:00 — 06:44
NK1059
Spirit Airlines
San Antonio — Las Vegas
1h 48m stop
08:32 — 14:16
NK187
Spirit Airlines
Las Vegas — Chicago
|
8h 16m including layover |
Find flight
from$114 |
|
|
08:33 — 15:31
|
08:33 — 12:17
NK1359
Spirit Airlines
San Antonio — Orlando
1h 6m stop
13:23 — 15:31
NK1369
Spirit Airlines
Orlando — Chicago
|
6h 58m including layover |
Find flight
from$114 |
|
|
08:33 — 17:17
|
08:33 — 12:17
NK1359
Spirit Airlines
San Antonio — Orlando
2h 51m stop
15:08 — 17:17
NK1114
Spirit Airlines
Orlando — Chicago
|
8h 44m including layover |
Find flight
from$114 |
|
|
10:16 — 08:07
+1 day
|
09:00 — 12:56
F91654
Frontier Airlines
San Antonio — Orlando
15h 55m stop
08:00 — 10:14
F93043
Frontier Airlines
Orlando — Chicago
|
21h 51m including layover |
Find flight
from$80 |
|
|
10:16 — 23:31
|
10:42 — 14:32
F91654
Frontier Airlines
San Antonio — Orlando
6h 56m stop
22:17 — 00:20
F92791
Frontier Airlines
Orlando — Chicago
|
13h 15m including layover |
Find flight
from$99 |
|
|
12:09 — 22:28
|
12:09 — 15:34
NK1197
Spirit Airlines
San Antonio — Atlanta
5h 45m stop
21:19 — 22:28
NK1200
Spirit Airlines
Atlanta — Chicago
|
10h 19m including layover |
Find flight
from$72 |
|
|
14:50 — 23:31
|
14:50 — 16:02
NK849
Spirit Airlines
San Antonio — Los Angeles
1h 22m stop
17:24 — 23:31
NK3010
Spirit Airlines
Los Angeles — Chicago
|
8h 41m including layover |
Find flight
from$87 |
|
|
14:55 — 23:53
|
14:55 — 16:23
F92355
Frontier Airlines
San Antonio — Denver
3h 59m stop
20:22 — 23:53
F93172
Frontier Airlines
Denver — Chicago
|
8h 58m including layover |
Find flight
from$84 |
|
|
17:38 — 23:18
|
12:27 — 16:04
F94810
Frontier Airlines
San Antonio — Atlanta
1h stop
21:12 — 22:14
F92779
Frontier Airlines
Atlanta — Chicago
|
5h 40m including layover |
Find flight
from$94 |
|
|
18:13 — 15:33
+1 day
|
18:03 — 20:11
NK2039
Spirit Airlines
San Antonio — Nashville
17h 4m stop
14:28 — 16:25
NK2028
Spirit Airlines
Nashville — Chicago
|
21h 20m including layover |
Find flight
from$96 |
|
|
18:35 — 15:45
+1 day
|
18:35 — 21:19
SY1836
Sun Country Airlines
San Antonio — Minneapolis
16h 47m stop
15:42 — 17:21
SY259
Sun Country Airlines
Minneapolis — Chicago
|
21h 10m including layover |
Find flight
from$114 |
|
|
19:38 — 06:03
+1 day
|
19:38 — 20:38
NK1587
Spirit Airlines
San Antonio — Las Vegas
3h 56m stop
00:34 — 06:03
NK1053
Spirit Airlines
Las Vegas — Chicago
|
10h 25m including layover |
Find flight
from$115 |
|
|
20:14 — 11:41
+1 day
|
20:12 — 21:45
F92097
Frontier Airlines
San Antonio — Denver
10h 30m stop
08:15 — 11:40
F92210
Frontier Airlines
Denver — Chicago
|
15h 27m including layover |
Find flight
from$99 |
|
|
20:48 — 07:04
+1 day
|
20:48 — 00:16
NK1357
Spirit Airlines
San Antonio — Atlanta
5h 44m stop
06:00 — 07:04
NK1116
Spirit Airlines
Atlanta — Chicago
|
10h 16m including layover |
Find flight
from$72 |
|
|
22:57 — 06:12
+1 day
|
22:51 — 23:48
NK2702
Spirit Airlines
San Antonio — Las Vegas
47m stop
23:46 — 05:25
NK2186
Spirit Airlines
Las Vegas — Chicago
|
7h 15m including layover |
Find flight
from$122 |
|
|
22:57 — 10:50
+1 day
|
22:51 — 23:48
NK2702
Spirit Airlines
San Antonio — Las Vegas
5h 18m stop
05:15 — 10:55
NK2619
Spirit Airlines
Las Vegas — Chicago
|
11h 53m including layover |
Find flight
from$122 |
|
|
06:00 — 08:38
+1 day
|
06:00 — 06:44
NK1059
Spirit Airlines
San Antonio — Las Vegas
9h 44m stop
16:28 — 00:10
NK2382
Spirit Airlines
Las Vegas — Baltimore
7h 28m stop
07:38 — 08:38
NK2439
Spirit Airlines
Baltimore — Chicago
|
26h 38m including layover |
Find flight
from$126 |
|
|
09:00 — 07:04
+1 day
|
09:00 — 13:12
NK1192
Spirit Airlines
San Antonio — Detroit
7h 49m stop
21:01 — 23:12
NK1377
Spirit Airlines
Detroit — Atlanta
6h 48m stop
06:00 — 07:04
NK1116
Spirit Airlines
Atlanta — Chicago
|
22h 4m including layover |
Find flight
from$117 |
|
|
12:09 — 08:38
+1 day
|
12:09 — 15:34
NK1197
Spirit Airlines
San Antonio — Atlanta
7h 11m stop
22:45 — 00:34
NK1911
Spirit Airlines
Atlanta — Baltimore
7h 4m stop
07:38 — 08:38
NK2439
Spirit Airlines
Baltimore — Chicago
|
20h 29m including layover |
Find flight
from$112 |
|
|
16:20 — 09:23
+1 day
|
16:20 — 17:20
NK2702
Spirit Airlines
San Antonio — Las Vegas
5h 4m stop
22:24 — 05:43
NK3172
Spirit Airlines
Las Vegas — Baltimore
2h 17m stop
08:00 — 09:23
NK2439
Spirit Airlines
Baltimore — Chicago
|
17h 3m including layover |
Find flight
from$126 |
|
|
16:20 — 09:38
+1 day
|
14:37 — 15:36
NK2702
Spirit Airlines
San Antonio — Las Vegas
6h 12m stop
23:02 — 06:00
NK2573
Spirit Airlines
Las Vegas — Atlanta
2h 5m stop
07:48 — 08:55
NK2707
Spirit Airlines
Atlanta — Chicago
|
17h 18m including layover |
Find flight
from$130 |
|
|
19:38 — 16:46
+1 day
|
19:38 — 20:38
NK1587
Spirit Airlines
San Antonio — Las Vegas
59m stop
21:37 — 22:50
NK1657
Spirit Airlines
Las Vegas — Los Angeles
11h 46m stop
10:36 — 16:46
NK1105
Spirit Airlines
Los Angeles — Chicago
|
21h 8m including layover |
Find flight
from$123 |
|
*Departure and arrival times - local. Updated on July 2, 2025
Flight Information
Below we will explain in detail what the flights cost on the destination from San Antonio to Chicago depends on and how to choose the most interesting flight option for you.
Distance between San Antonio and Chicago is 1684 miles. Time difference between the cities is 0h. Airplanes depart 05:00 to 22:57 from 5 San Antonio airports and arrive 05:00 to 22:57 to 7 Chicago airports. Average flight time is 2h 58m.
- The fastest flight 2h 51m
- Average flight time 2h 58m
- The earliest flight 05:00
- The latest flight 22:57
- Distance 1047 ml
The cheapest months to travel to Chicago are june (from 90 $), july (from 97 $), august (from 97 $).
The most expensive months are september (from 112 $), may (from 112 $), october (from 107 $).
What is the lowest airfare San Antonio to Chicago?
The cheapest plane ticket found by our users is $72. This airfare is for economy class on one-way NK1357 flight by Spirit Airlines for July 24, 2025 which leaves San Antonio in San Antonio at 20:48 am and arrives at Chicago O'Hare International at 07:04.
Economy class
$72
Business class
?
First class
?
Popular Airlines on the Route
The flight San Antonio — Chicago is served by 6 regular airlines and 3 low-cost airlines. Most of the flights on this route are operated by Alaska Airlines - 8 departures per week at the price of from $ 162 . And the most expensive tickets are offered by United Airlines airline - from $ 891.
Direct flights
There are 6 nonstop flights on the route. The fastest direct flight is UA697 by United Airlines takes 2h 51m and the cheapest is NK1357 by Spirit Airlines for $148.
- UA - United Airlinesfrom $148Find
See more direct flights
Connecting Flights
There are 318 flights with layovers on the route. The fastest connecting flight is UA6298 by United Airlines takes 4h 40m and the cheapest is NK1357 by Spirit Airlines for $72.
- AS - Alaska Airlinesfrom $162Find
- F9 - Frontier Airlinesfrom $80Find
- SY - Sun Country Airlinesfrom $114Find
- HA - Hawaiian Airlinesfrom $159Find
- UA - United Airlinesfrom $151Find
- NK - Spirit Airlinesfrom $72Find
See more connecting flights
Airports
You can fly from San Antonio to Chicago from 5 airports (Randolph AFB, Martindale AAF, San Antonio, Kelly AFB, Stinson Municipal).
San Antonio airports
- Randolph AFB-RNDFind
- Martindale AAF-MDAFind
- San Antonio-SATfrom $72Find
- Kelly AFB-SKFFind
- Stinson Municipal-SSFFind
Chicago airports
- O'Hare International-ORDFind
- Midway-MDWFind
- Dupage County-DPAFind
- Chicago FSS-CHIFind
- Merrill C Meigs (closed)-CGXFind
- Pal-Waukee-PWKFind
- Chicago NAS-NOHFind
Airplanes
There are flights to Chicago from San Antonio by 6 airlines that use 0 aircraft brands. They range from huge modern airplanes to small-sized.
Top Domestic Destinations from San Antonio
You may also consider searching for discounted plane tickets to some other popular places from San Antonio within United States.
- from $55Find
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- from $80Find
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- from $60Find
Top International Destinations from San Antonio
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.
- from $79Find
- from $73Find
- from $65Find
- from $61Find
- from $75Find
- from $54Find
- from $76Find
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.
To find a plane ticket, please select dates.