SAT

$82 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 9/3. 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

Wed, Aug 20 - Sat, Aug 30
Spirit Airlines Logo
7:05 am - 7:23 pmORD-SAT
12h 18m1 stop
Spirit Airlines Logo
8:28 pm - 5:40 amSAT-ORD
9h 12m1 stop
$179Spirit Airlines
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Fri, Oct 17 - Sat, Oct 25
Frontier Logo
6:00 am - 2:33 pmORD-SAT
8h 33m1 stop
Frontier Logo
4:12 pm - 11:53 pmSAT-ORD
7h 41m1 stop
$182Frontier
Find Deal
Mon, Aug 11 - Mon, Aug 18
Southwest Logo
7:10 pm - 9:15 pmSTL-SAT
2h 05mnonstop
Southwest Logo
5:00 am - 7:10 amSAT-STL
2h 10mnonstop
$217Southwest
Find Deal
Mon, Aug 11 - Mon, Aug 18
Southwest Logo
7:10 pm - 9:15 pmSTL-SAT
2h 05mnonstop
Southwest Logo
5:35 am - 11:05 amSAT-STL
5h 30m1 stop
$222Southwest
Find Deal
Mon, Aug 11 - Mon, Aug 18
Delta Logo
9:17 am - 5:06 pmSTL-SAT
7h 49m1 stop
Delta Logo
6:04 pm - 11:23 pmSAT-STL
5h 19m1 stop
$227Delta
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Sat, Sep 27 - Sun, Sep 28
United Airlines Logo
6:15 am - 10:49 amSTL-SAT
4h 34m1 stop
United Airlines Logo
2:25 pm - 6:57 pmSAT-STL
4h 32m1 stop
$229United Airlines
Find Deal
Mon, Aug 18 - Fri, Aug 22
Delta Logo
1:26 pm - 7:30 pmSTL-SAT
6h 04m1 stop
Delta Logo
5:15 am - 9:57 amSAT-STL
4h 42m1 stop
$234Delta
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Thu, Aug 28 - Thu, Sep 4
American Airlines Logo
6:40 pm - 9:39 pmORD-SAT
2h 59mnonstop
American Airlines Logo
1:00 pm - 3:59 pmSAT-ORD
2h 59mnonstop
$234American Airlines
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Thu, Aug 7 - Mon, Aug 11
United Airlines Logo
8:45 am - 11:45 amORD-SAT
3h 00mnonstop
United Airlines Logo
12:55 pm - 3:53 pmSAT-ORD
2h 58mnonstop
$235United Airlines
Find Deal
Wed, Aug 27 - Wed, Sep 3
American Airlines Logo
2:52 pm - 5:40 pmORD-SAT
2h 48mnonstop
American Airlines Logo
1:00 pm - 3:59 pmSAT-ORD
2h 59mnonstop
$237American Airlines
Find Deal
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Good to know

Low seasonJanuary
High seasonOctober
Cheapest flight$82
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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