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Cheap flights from Chicago to San Antonio from R1 747

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Chicago to San Antonio

Cheap return flights

Enter your travel dates to find the best prices.
United Airlines Logo
19:45 - 22:59ORD  Chicago O'Hare Intl-SAT San Antonio
3h 14mdirect
United Airlines Logo
10:20 - 13:15SAT  San Antonio-ORD Chicago O'Hare Intl
2h 55mdirect
R6 247United Airlines
Wed, Dec 23 - Tue, Jan 5
United Airlines Logo
19:45 - 22:52ORD  Chicago O'Hare Intl-SAT San Antonio
3h 07mdirect
United Airlines Logo
5:15 - 10:10SAT  San Antonio-ORD Chicago O'Hare Intl
4h 55m1 stop Houston George Bush Intcntl
R6 412United Airlines
Thu, Dec 3 - Thu, Dec 10
Delta Logo
11:35 - 17:31ORD  Chicago O'Hare Intl-SAT San Antonio
5h 56m1 stop Atlanta Hartsfield-Jackson
Delta Logo
14:29 - 19:45SAT  San Antonio-ORD Chicago O'Hare Intl
5h 16m1 stop Minneapolis St Paul
R6 577Delta
Fri, Dec 4 - Thu, Dec 10
United Airlines Logo
13:00 - 16:18ORD  Chicago O'Hare Intl-SAT San Antonio
3h 18mdirect
United Airlines Logo
6:45 - 9:43SAT  San Antonio-ORD Chicago O'Hare Intl
2h 58mdirect
R6 610United Airlines
Sat, Dec 12 - Tue, Dec 29
United Airlines Logo
6:50 - 13:06ORD  Chicago O'Hare Intl-SAT San Antonio
6h 16m1 stop Houston George Bush Intcntl
United Airlines Logo
17:10 - 20:17SAT  San Antonio-ORD Chicago O'Hare Intl
3h 07mdirect
R6 775United Airlines
Tue, Dec 1 - Tue, Dec 8
United Airlines Logo
19:45 - 22:59ORD  Chicago O'Hare Intl-SAT San Antonio
3h 14mdirect
United Airlines Logo
17:39 - 20:40SAT  San Antonio-ORD Chicago O'Hare Intl
3h 01mdirect
R6 808United Airlines
Tue, Dec 22 - Mon, Dec 28
United Airlines Logo
9:05 - 12:20ORD  Chicago O'Hare Intl-SAT San Antonio
3h 15mdirect
United Airlines Logo
17:10 - 20:17SAT  San Antonio-ORD Chicago O'Hare Intl
3h 07mdirect
R6 841United Airlines
Sun, Dec 6 - Tue, Dec 8
United Airlines Logo
13:00 - 16:18ORD  Chicago O'Hare Intl-SAT San Antonio
3h 18mdirect
United Airlines Logo
6:35 - 9:33SAT  San Antonio-ORD Chicago O'Hare Intl
2h 58mdirect
R6 857United Airlines
Thu, Dec 10 - Sat, Dec 12
Delta Logo
15:47 - 21:31ORD  Chicago O'Hare Intl-SAT San Antonio
5h 44m1 stop Minneapolis St Paul
Delta Logo
14:29 - 19:45SAT  San Antonio-ORD Chicago O'Hare Intl
5h 16m1 stop Minneapolis St Paul
R6 906Delta
Tue, Dec 1 - Thu, Dec 10
United Airlines Logo
10:25 - 15:38ORD  Chicago O'Hare Intl-SAT San Antonio
5h 13m1 stop Houston George Bush Intcntl
United Airlines Logo
16:18 - 21:29SAT  San Antonio-ORD Chicago O'Hare Intl
5h 11m1 stop Houston George Bush Intcntl
R6 939United Airlines
Sat, Feb 20 - Tue, Mar 2

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Delta flights from Chicago to San Antonio

Our best Delta deals on Chicago to San Antonio flight tickets
Delta
Dec 4
ORD11:35Chicago O'Hare Intl
5h 56m
1 stop
SAT17:31San Antonio
Dec 10
SAT14:29San Antonio
5h 16m
1 stop
ORD19:45Chicago O'Hare Intl
R6 577
Delta
Dec 1
ORD15:47Chicago O'Hare Intl
5h 44m
1 stop
SAT21:31San Antonio
Dec 10
SAT14:29San Antonio
5h 16m
1 stop
ORD19:45Chicago O'Hare Intl
R6 906
Delta
Dec 24
ORD17:00Chicago O'Hare Intl
6h 21m
1 stop
SAT23:21San Antonio
Dec 29
SAT18:30San Antonio
5h 32m
1 stop
ORD0:02Chicago O'Hare Intl
R7 187

United Airlines flights from Chicago to San Antonio

Our best United Airlines deals on Chicago to San Antonio flight tickets
United Airlines
Dec 23
ORD19:45Chicago O'Hare Intl
3h 14m
SAT22:59San Antonio
Jan 5
SAT10:20San Antonio
2h 55m
ORD13:15Chicago O'Hare Intl
R6 247
United Airlines
Dec 3
ORD19:45Chicago O'Hare Intl
3h 07m
SAT22:52San Antonio
Dec 10
SAT5:15San Antonio
4h 55m
1 stop
ORD10:10Chicago O'Hare Intl
R6 412
United Airlines
Dec 12
ORD13:00Chicago O'Hare Intl
3h 18m
SAT16:18San Antonio
Dec 29
SAT6:45San Antonio
2h 58m
ORD9:43Chicago O'Hare Intl
R6 610

momondo Fare Finder

 
Use the filters below to find and compare flights from Chicago to San Antonio that are best for you.

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Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

ChicagoSan Antonio

ORD Chicago O'Hare Intl - SAT San Antonio

ORDSAT

Chicago O'Hare Intl

Wed 23/12

19:45-22:59

Nonstop3h 14m

San Antonio

Tue 5/1

10:20-13:15

Nonstop2h 55m

R6 247

ChicagoSan Antonio

ORD Chicago O'Hare Intl - SAT San Antonio

ORDSAT

Chicago O'Hare Intl

Thu 3/12

19:45-22:52

Nonstop3h 07m

San Antonio

Thu 10/12

5:15-10:10

1 stop4h 55m

R6 412

ChicagoSan Antonio

ORD Chicago O'Hare Intl - SAT San Antonio

ORDSAT

Chicago O'Hare Intl

Fri 4/12

11:35-17:31

1 stop5h 56m

San Antonio

Thu 10/12

14:29-19:45

1 stop5h 16m

R6 577

ChicagoSan Antonio

ORD Chicago O'Hare Intl - SAT San Antonio

ORDSAT

Chicago O'Hare Intl

Sat 12/12

13:00-16:18

Nonstop3h 18m

San Antonio

Tue 29/12

6:45-9:43

Nonstop2h 58m

R6 610

ChicagoSan Antonio

ORD Chicago O'Hare Intl - SAT San Antonio

ORDSAT

Chicago O'Hare Intl

Tue 1/12

6:50-13:06

1 stop6h 16m

San Antonio

Tue 8/12

17:10-20:17

Nonstop3h 07m

R6 775

ChicagoSan Antonio

ORD Chicago O'Hare Intl - SAT San Antonio

ORDSAT

Chicago O'Hare Intl

Tue 22/12

19:45-22:59

Nonstop3h 14m

San Antonio

Mon 28/12

17:39-20:40

Nonstop3h 01m

R6 808

ChicagoSan Antonio

ORD Chicago O'Hare Intl - SAT San Antonio

ORDSAT

Chicago O'Hare Intl

Sun 6/12

9:05-12:20

Nonstop3h 15m

San Antonio

Tue 8/12

17:10-20:17

Nonstop3h 07m

R6 841

ChicagoSan Antonio

ORD Chicago O'Hare Intl - SAT San Antonio

ORDSAT

Chicago O'Hare Intl

Thu 10/12

13:00-16:18

Nonstop3h 18m

San Antonio

Sat 12/12

6:35-9:33

Nonstop2h 58m

R6 857

ChicagoSan Antonio

ORD Chicago O'Hare Intl - SAT San Antonio

ORDSAT

Chicago O'Hare Intl

Tue 1/12

15:47-21:31

1 stop5h 44m

San Antonio

Thu 10/12

14:29-19:45

1 stop5h 16m

R6 906

ChicagoSan Antonio

ORD Chicago O'Hare Intl - SAT San Antonio

ORDSAT

Chicago O'Hare Intl

Sat 20/2

10:25-15:38

1 stop5h 13m

San Antonio

Tue 2/3

16:18-21:29

1 stop5h 11m

R6 939

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Antonio from

How to get the cheapest flight ticket from Chicago to San Antonio

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Chicago and San Antonio?

Prices are currently typical for flights on this route.

Typical prices usually range from R6 214 to R8 786.
The lowest price recently found on this route was R6 247.

What is the cheapest month to fly to San Antonio?

The month of January is, on average, the cheapest month to fly to San Antonio from Chicago, with most prices found around R6 066. If you’re not able to fly to San Antonio in January, then December is your next best option. Flight prices from Chicago to San Antonio during December average around R6 395.

What is the cheapest Chicago to San Antonio flight route?

Fly from Chicago Midway to San Antonio for the best Chicago - San Antonio flight prices

How far in advance should I book a flight from Chicago to San Antonio?

You are more likely to see cheaper flights to San Antonio from Chicago when booking weeks ahead of your departure date. In general, you can expect to find flights to San Antonio for around R6 803 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Antonio from Chicago for as low as R5 604 on momondo.

What cabin class options are available on Chicago to San Antonio flights?

There is only 1 cabin class available to choose from on Chicago to San Antonio flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Chicago to San Antonio flight prices changed over time?

As of November 2026, prices for Chicago to San Antonio flights are approximately 8% cheaper when compared to flights at the same time last year.

When to book flights from Chicago to San Antonio

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago to San Antonio according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Chicago to San Antonio (CHI to SAT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago to San Antonio

Best price found

R1 747

Direct flights

Every day

Airports in San Antonio

1 airport
The best one-way flight to San Antonio from Chicago in the past 72 hours is R1 747. The best return flight deal from Chicago to San Antonio found on momondo in the last 72 hours is R6 247.
Direct flights go from Chicago to San Antonio every day.
There is 1 airport in San Antonio. From Chicago there are direct flights to San Antonio (SAT).
Search flight deals

Frequently asked questions about flying from Chicago to San Antonio

  • How far is Chicago to San Antonio by plane?

    A flight from Chicago to San Antonio will travel around 1693,0 km.

  • When did momondo last update prices for flights from Chicago to San Antonio Airport?

    Prices for flights from Chicago to San Antonio Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Chicago to San Antonio Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Chicago to San Antonio Airport.

  • What documentation or ID do you need to fly to San Antonio Airport?

    The travel and health documents required for your trip to San Antonio Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at San Antonio Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Chicago to San Antonio?

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to San Antonio?

It is quick and easy to find Chicago to San Antonio flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to San Antonio that suits you.

Can I find flights from Chicago to San Antonio with flexible booking policies on momondo?

All flight searches from Chicago to San Antonio on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Chicago to San Antonio?

Once you have performed a search for Chicago to San Antonio flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Chicago to San Antonio right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Chicago to San Antonio flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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