SAT

$92 Find Cheap Flights from Illinois to San Antonio

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to San Antonio departing on 7/22. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

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Cheap Flights from Illinois to San Antonio

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Illinois to San Antonio that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Illinois to San Antonio

Mon, Sep 15 - Wed, Sep 17
Spirit Airlines Logo
3:21 pm - 5:04 amORD-SAT
13h 43m1 stop
Spirit Airlines Logo
6:00 am - 2:16 pmSAT-ORD
8h 16m1 stop
$185Spirit Airlines
Find Deal
Wed, Jul 9 - Tue, Jul 15
Spirit Airlines Logo
7:08 am - 6:36 pmORD-SAT
11h 28m1 stop
Spirit Airlines Logo
7:52 pm - 6:03 amSAT-ORD
10h 11m1 stop
$187Spirit Airlines
Find Deal
Thu, Aug 7 - Mon, Aug 11
Southwest Logo
7:10 pm - 9:15 pmSTL-SAT
2h 05mnonstop
Southwest Logo
4:30 pm - 6:40 pmSAT-STL
2h 10mnonstop
$197Southwest
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Fri, Jul 4 - Mon, Jul 7
Frontier Logo
5:01 am - 4:43 pmORD-SAT
11h 42m1 stop
Frontier Logo
5:38 pm - 12:22 amSAT-ORD
6h 44m1 stop
$200Frontier
Find Deal
Mon, Aug 25 - Thu, Aug 28
United Airlines Logo
6:15 am - 10:37 amSTL-SAT
4h 22m1 stop
United Airlines Logo
2:25 pm - 6:58 pmSAT-STL
4h 33m1 stop
$202United Airlines
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Thu, Jul 3 - Tue, Jul 8
Logo
5:40 am - 7:14 pmORD-SAT
13h 34m1 stop
Logo
4:20 pm - 6:03 amSAT-ORD
13h 43m1 stop
$204
Find Deal
Thu, Jul 3 - Mon, Jul 7
Frontier Logo
5:40 am - 7:14 pmORD-SAT
13h 34m1 stop
Frontier Logo
5:38 pm - 12:22 amSAT-ORD
6h 44m1 stop
$208Frontier
Find Deal
Sat, Nov 1 - Wed, Nov 5
United Airlines Logo
6:15 am - 10:43 amSTL-SAT
4h 28m1 stop
United Airlines Logo
7:00 am - 2:20 pmSAT-STL
7h 20m1 stop
$213United Airlines
Find Deal
Thu, Jul 3 - Sun, Jul 6
Logo
5:40 am - 7:14 pmORD-SAT
13h 34m1 stop
Logo
10:57 pm - 10:50 amSAT-ORD
11h 53m1 stop
$213
Find Deal
Tue, Aug 5 - Thu, Aug 7
Southwest Logo
6:10 am - 12:30 pmSTL-SAT
6h 20m2 stops
Southwest Logo
11:40 am - 6:40 pmSAT-STL
7h 00m1 stop
$222Southwest
Find Deal
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Good to know

Low seasonJanuary
High seasonOctober
Cheapest flight$92
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly and prices are also 4% lower on average.
Flight from Chicago O'Hare Airport to San Antonio

FAQs for booking flights from Illinois to San Antonio

  • How does KAYAK find such low prices on flights from Illinois to San Antonio?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to San Antonio.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to San Antonio?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Antonio from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Illinois to San Antonio?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Antonio with an airline and back to Illinois with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to San Antonio?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Antonio from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight to San Antonio

Information on the airport you'll fly into in San Antonio

San Antonio (SAT)

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