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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)

CHI - SAT
Price
$227 - $339

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 to San Antonio

One-way from

$122

One-way flight from Chicago to San Antonio

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Chicago to San Antonio?

Saturday flights are generally found to be more expensive for flights from Chicago to San Antonio. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to San Antonio.

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

To save up to 29% on this flight, we recommend booking at least 24 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Chicago to San Antonio from $119 1-2 weeks out and tickets from $155 for flights departing within the next 72 hours.

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

Flights from Chicago to San Antonio lean towards being more expensive in December. Prices are generally better when you fly from Chicago to San Antonio in June, with the cheapest ticket starting at $70.

When is the cheapest time to fly from Chicago to San Antonio (CHI - SAT)?

Unlike in the morning, when flights are generally more expensive, you can save up to 26% on flights from Chicago to San Antonio by exploring options for tickets in the afternoon.

Cheap flights from Chicago to San Antonio in October, November 2020

The best prices found for CHI to SAT flights for October, November
6 Nov - 9 Nov
$98pp
ORD
Chicago O'Hare Intl
Frontier
 
1 STOP
SAT
San Antonio
SAT
San Antonio
Frontier
 
1 STOP
ORD
Chicago O'Hare Intl
13 Nov - 16 Nov
$110pp
ORD
Chicago O'Hare Intl
Multiple Airlines
 
1 STOP
SAT
San Antonio
SAT
San Antonio
Frontier
 
1 STOP
ORD
Chicago O'Hare Intl
13 Nov - 16 Nov
$145pp
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 2020 flight deals

Cheap flights to San Antonio from Chicago found for this year
6 Nov - 9 Nov
$98pp
ORD
Chicago O'Hare Intl
Frontier
 
1 STOP
SAT
San Antonio
SAT
San Antonio
Frontier
 
1 STOP
ORD
Chicago O'Hare Intl
13 Nov - 16 Nov
$110pp
ORD
Chicago O'Hare Intl
Multiple Airlines
 
1 STOP
SAT
San Antonio
SAT
San Antonio
Frontier
 
1 STOP
ORD
Chicago O'Hare Intl
13 Nov - 16 Nov
$145pp
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
18 Nov - 5 Jan
$237pp
ORD
Chicago O'Hare Intl
United Airlines
Non-Stop
SAT
San Antonio
SAT
San Antonio
United Airlines
Non-Stop
ORD
Chicago O'Hare Intl
4 Dec - 7 Dec
$257pp
ORD
Chicago O'Hare Intl
United Airlines
Non-Stop
SAT
San Antonio
SAT
San Antonio
United Airlines
Non-Stop
ORD
Chicago O'Hare Intl
13 Nov - 14 Nov
$277pp
ORD
Chicago O'Hare Intl
United Airlines
Non-Stop
SAT
San Antonio
SAT
San Antonio
United 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
6 Nov - 9 Nov
$98pp
ORD
Chicago O'Hare Intl
Frontier
 
1 STOP
SAT
San Antonio
SAT
San Antonio
Frontier
 
1 STOP
ORD
Chicago O'Hare Intl
5 Nov - 9 Nov
$146pp
ORD
Chicago O'Hare Intl
Multiple Airlines
 
1 STOP
SAT
San Antonio
SAT
San Antonio
Multiple Airlines
 
1 STOP
ORD
Chicago O'Hare Intl
6 Nov - 9 Nov
$147pp
ORD
Chicago O'Hare Intl
Multiple Airlines
 
1 STOP
SAT
San Antonio
SAT
San Antonio
Multiple Airlines
 
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
6:58 am - 3:45 pm
American Airlines
1 Stop
8h 47m
ORD - SAT
American Airlines
3:15 am - 2:02 pm
Frontier
1 Stop
10h 47m
ORD - SAT
Frontier
5:05 am - 5:33 pm
United Airlines
2 Stops
12h 28m
ORD - SAT
United Airlines
$128
United

Related info for your journey

Useful info, stats and facts about Chicago to San Antonio flights.

Flight FAQs

From Chicago to San Antonio

Are flight prices decreasing from Chicago to San Antonio due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Chicago and San Antonio for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

What safety measures are being taken by airlines flying from Chicago to San Antonio to control the spread of COVID-19?

Delta is one of the many airlines that have implemented additional safety measures to control the spread of COVID-19. Some of the new policies that have been implemented to accommodate travelers flying from Chicago to San Antonio are improved sanitation, HEPA filters, mask requirements, social distance seating (for a limited time), and pre-flight testing for antibodies and symptoms. Policies will vary by airline.

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 Multiple Airlines for just $110, but on average you can expect to pay $162.

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 $345.

Are there last-minute flights available from Chicago to San Antonio for under $100?

There are currently 20+ open flights from Chicago to San Antonio within the next 7 days for less than $100.

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

You can find nonstop flights on the following days: Sunday, Wednesday, Thursday, Friday, Saturday.

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

Travelers can expect 1 flight from Chicago to San Antonio on average per day.
Evening (6pm - Midnight) - 100% of flight departures

Is Chicago weather warmer or cooler than San Antonio?

We forecast the temperature to be around the 97 °F's in August, on average. The temperature in San Antonio is generally hotter than in Chicago. Book flights in a timely manner in correlation to your departure date.

How long is the flight from Chicago to San Antonio?

There are many flights that can get you from Chicago to San Antonio in 5h 15m. Fly via Delta to get the fastest option. Chicago and San Antonio are separated by a distance of 1048 mi.

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

According to our current data, Frontier ($145), offers the cheapest pricing from Chicago to San Antonio. Frontier is currently priced 50% below the average price you’ll pay for this route.

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

The cheapest airlines for a one-way flight from Chicago to San Antonio are Frontier ($66), American Airlines ($119), and Delta ($123).

Alternative routes for Chicago to San Antonio

Destination information for San Antonio

Things to know before you go. Useful info for your trip from Chicago to San Antonio

Airports servicing Chicago

Chicago Midway (MDW)
Rockford (RFD)

Airports servicing San Antonio

Hourly flight availability from Chicago to San Antonio

Morning 6 AM to noon 51% of CHI to SAT departures
Evening 6 PM to midnight 48% of CHI to SAT departures
Early morning Midnight to 6 AM 1% of CHI to SAT departures
Afternoon Noon to 6 PM 0% of CHI to SAT departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Chicago to San Antonio
Sunday
2 daily flights
Monday
6 daily flights
Tuesday
2 daily flights
Wednesday
2 daily flights
Thursday
5 daily flights
Friday
6 daily flights
Saturday
2 daily flights
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