Cheap flights from Chicago to San Antonio (CHI - SAT)

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The best prices from Chicago to San Antonio are usually found in August or June, booked 27 days in advance, depart on a Wednesday or Saturday and return on a Saturday

How to find the cheapest flight from
Chicago (CHI) to San Antonio (SAT)

All the information you need to plan the best CHI to SAT flight in 2021: compare Chicago to San Antonio flight prices with the expected peak season, weather and rainfall in San Antonio.
CHI - SAT
Price
$227 - $339
SAT
Temperature
51.8 - 84.2 °F
SAT
Precipitation
1.6 - 3.7 inches

Popular in

December

High demand for flights, 14% potential price rise

Cheapest in

August

Best time to find cheap flights, 22% potential price drop

Round-trip from

$227

From Chicago (CHI) to San Antonio

One-way from

$121

One-way flight from Chicago (CHI) to San Antonio

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
When is the cheapest time to fly from Chicago to San Antonio (CHI - SAT)?

It’s typically best to fly out from Chicago to San Antonio in the afternoon. Doing so could potentially save you 32% on the flight price compared to flying in the morning, which is usually more expensive.

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

Find a great deal and save up to 47% by booking at least 28 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Chicago to San Antonio within the next two weeks, with the cheapest ticket starting at $350.

What is the cheapest month to fly from Chicago to San Antonio?

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, August can be a great choice for travel to San Antonio. Flights to San Antonio from Chicago in August are about $292 on average during August, but can be found for as low as $156.

What is the cheapest day to fly round-trip from Chicago to San Antonio?

Departing on a Tuesday is a good option for securing a great price. You can expect to save up to 11% when planning your travel around this day of the week.

Cheap flights from Chicago to San Antonio in November, December 2021

The best prices found for CHI to SAT flights for November, December
4 Dec - 11 Dec
$122pp
ORD
Chicago O'Hare Intl
Frontier
 
1 STOP
SAT
San Antonio
SAT
San Antonio
Frontier
 
1 STOP
ORD
Chicago O'Hare Intl
1 Dec - 4 Dec
$123pp
ORD
Chicago O'Hare Intl
Frontier
 
1 STOP
SAT
San Antonio
SAT
San Antonio
Frontier
 
1 STOP
ORD
Chicago O'Hare Intl
1 Dec - 11 Dec
$133pp
ORD
Chicago O'Hare Intl
Frontier
 
1 STOP
SAT
San Antonio
SAT
San Antonio
Frontier
 
1 STOP
ORD
Chicago O'Hare Intl

Chicago to San Antonio 2022 flight deals

Cheap flights to San Antonio from Chicago found for next year
4 Dec - 11 Dec
$122pp
ORD
Chicago O'Hare Intl
Frontier
 
1 STOP
SAT
San Antonio
SAT
San Antonio
Frontier
 
1 STOP
ORD
Chicago O'Hare Intl
1 Dec - 4 Dec
$123pp
ORD
Chicago O'Hare Intl
Frontier
 
1 STOP
SAT
San Antonio
SAT
San Antonio
Frontier
 
1 STOP
ORD
Chicago O'Hare Intl
1 Dec - 11 Dec
$133pp
ORD
Chicago O'Hare Intl
Frontier
 
1 STOP
SAT
San Antonio
SAT
San Antonio
Frontier
 
1 STOP
ORD
Chicago O'Hare Intl

Non-stop flights to San Antonio from Chicago

Save time with Chicago to San Antonio direct flight deals
8 Dec - 11 Dec
$227pp
ORD
Chicago O'Hare Intl
American Airlines
Non-Stop
SAT
San Antonio
SAT
San Antonio
American Airlines
Non-Stop
ORD
Chicago O'Hare Intl
9 Jan - 16 Jan
$232pp
ORD
Chicago O'Hare Intl
Major Airline
Non-Stop
SAT
San Antonio
SAT
San Antonio
Major Airline
Non-Stop
ORD
Chicago O'Hare Intl
12 Dec - 28 Feb
$240pp
ORD
Chicago O'Hare Intl
American Airlines
Non-Stop
SAT
San Antonio
SAT
San Antonio
American Airlines
Non-Stop
ORD
Chicago O'Hare Intl

Last minute flights from Chicago to San Antonio

Late deals on round-trip flights to San Antonio from Chicago, departing today and this week
4 Dec - 11 Dec
$122pp
ORD
Chicago O'Hare Intl
Frontier
 
1 STOP
SAT
San Antonio
SAT
San Antonio
Frontier
 
1 STOP
ORD
Chicago O'Hare Intl
1 Dec - 4 Dec
$123pp
ORD
Chicago O'Hare Intl
Frontier
 
1 STOP
SAT
San Antonio
SAT
San Antonio
Frontier
 
1 STOP
ORD
Chicago O'Hare Intl
1 Dec - 11 Dec
$133pp
ORD
Chicago O'Hare Intl
Frontier
 
1 STOP
SAT
San Antonio
SAT
San Antonio
Frontier
 
1 STOP
ORD
Chicago O'Hare Intl

One-way flights to San Antonio from Chicago

The cheapest one-way flights from Chicago to San Antonio
12:28 am - 6:16 am
American Airlines
1 Stop
5h 48m
ORD - SAT
American Airlines
4:22 pm - 5:49 am
Multiple Airlines
1 Stop
13h 27m
ORD - SAT
Multiple Airlines
$133
Kiwi.com
1:30 am - 8:33 am
Delta
1 Stop
7h 03m
MDW - SAT
Delta
$136
Delta

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Chicago</span> to <span class="emphasized">San Antonio</span> flights.

Flight FAQs

From Chicago to San Antonio

What airport do you fly into for flights to San Antonio from Chicago?

San Antonio (SAT) is the airport you will fly into if you book a flight from Chicago to San Antonio. You should not have trouble finding flights to San Antonio from Chicago; the airport handles an average of 13 inbound flights from Chicago per day. You should also have plenty of airline options to choose from since 7 airlines have flights to the San Antonio airport from Chicago. It is only a 7.6 mi journey from San Antonio (SAT) to San Antonio’s city center.

Which airlines flying from Chicago to San Antonio have flexible cancellations due to COVID-19?

Some of our airline partners flying from Chicago to San Antonio have new flexible policies in place due to COVID-19. American Airlines, United Airlines, and Delta are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like American Airlines with this kind of flexibility.

Can I find flights from Chicago to San Antonio for under $200 on Cheapflights?

Yes, there are multiple flights from Chicago to San Antonio for under $200. The cheapest flight booked recently is on Frontier for just $122, but on average you can expect to pay $163.

Are there nonstop flights from Chicago to San Antonio for under $300 on Cheapflights?

Cheapflights has at least 20 direct flights from Chicago to San Antonio under $300. A good price for a nonstop flight from Chicago to San Antonio is less than $285.

Are there last-minute flights available from Chicago to San Antonio for under $200?

There are currently 20+ open flights from Chicago to San Antonio within the next 7 days for less than $200.

What days are nonstop flights available from Chicago to San Antonio?

Nonstop flights can be found on the following days: Sunday, Monday, Wednesday, Thursday, Friday, Saturday.

How many flights depart from Chicago to San Antonio on average per day?

35 flight departures from Chicago to San Antonio per day on average.
Morning (6am - Noon) - 14% of flight departures
Afternoon (Noon - 6pm) - 29% of flight departures
Evening (6pm - Midnight) - 57% of flight departures

How long is the flight from Chicago to San Antonio?

Departing from Chicago to San Antonio will take you 7h 46m. The distance between Chicago and San Antonio is about 1048 mi.

What is the cheapest airline to fly from Chicago to San Antonio round-trip?

Cheapflights users have booked flights from Chicago to San Antonio round-trip from $122. Frontier is priced at 58% lower than the current average price of a flight leaving 3 months from now.

What are the cheapest airlines to fly from Chicago to San Antonio one-way?

One-way options have recently been found by users for as low as $62 on Frontier. Other airlines that offer cheap prices include American Airlines from $114 and Delta from $123 one-way.

What are the most reliable airlines from Chicago to San Antonio?

Consider Republic Airways (100%), SkyWest Airlines (94%) or Air Canada (91%) when booking your flight. These represent the most reliable airlines when flying from Chicago to San Antonio.

What are the most popular airlines that fly from Chicago to San Antonio?

Before booking your flight from Chicago to San Antonio check out the most popular airlines for this route: Major Airline, American Airlines or Delta.

What are the cheapest flights from Chicago to San Antonio?

Looking at all options, your cheapest flight can be booked for $98. While the most popular route (Chicago O'Hare Intl - San Antonio) can be booked for $163 on average our data indicates $350 when flying from Chicago to San Antonio.

COVID Restrictions

View COVID Travel Restrictions for San Antonio, TX

Do I need a COVID test to fly to San Antonio from Chicago?

Information is based on travel restrictions for travel to San Antonio within the United States

Most visitors from Chicago need to provide a negative COVID-19 test result and/or quarantine to enter San Antonio.

COVID-19 testing requirements
Visitors from Chicago must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to San Antonio.

Quarantine requirements
Visitors from Chicago are not required to quarantine after entering San Antonio.

Do I need a test to fly back to Chicago from San Antonio?

Returning to Chicago from San Antonio

COVID-19 testing requirements
Visitors from San Antonio must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Chicago.

Quarantine requirements
Visitors from San Antonio are not required to quarantine after entering Chicago.

Hide COVID Travel Restrictions for San Antonio, TX

Alternative routes for Chicago to San Antonio

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for San Antonio

Things to know before you go - useful duration and weather info for your trip from Chicago to San Antonio.

Airports servicing Chicago

Midway (MDW)
Rockford (RFD)

Airports servicing San Antonio

Top 4 airlines flying from Chicago to San Antonio

The chart below displays the airlines Cheapflights users traveling from Chicago to San Antonio choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Frontier
$87 $218 No cancel fee 62%
Delta
$116 $395 No cancel fee N/A
United Airlines
$137 $327 No cancel fee 69%
American Airlines
$137 $367 No cancel fee 71%

Hourly flight availability from Chicago to San Antonio

See what time of day planes typically take off from Chicago towards San Antonio.
Evening 6 PM to midnight 36% of CHI to SAT departures
Morning 6 AM to noon 32% of CHI to SAT departures
Afternoon Noon to 6 PM 24% of CHI to SAT departures
Early morning Midnight to 6 AM 8% of CHI to SAT departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Chicago to San Antonio
See how many times per day planes take to the skies headed from Chicago to San Antonio.
Sunday
13 daily flights
Monday
21 daily flights
Tuesday
20 daily flights
Wednesday
22 daily flights
Thursday
0 flights
Friday
9 daily flights
Saturday
10 daily flights
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