SAT

$80 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 10/2. 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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Flight Deals

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, Oct 8 - Sat, Oct 11
Frontier Logo
7:15 am - 3:14 pmORD-SAT
7h 59m1 stop
Frontier Logo
5:32 pm - 11:53 pmSAT-ORD
6h 21m1 stop
$158Frontier
Find Deal
Sat, Nov 1 - Mon, Nov 3
Frontier Logo
7:15 am - 2:17 pmORD-SAT
7h 02m1 stop
Frontier Logo
5:35 pm - 12:11 amSAT-ORD
6h 36m1 stop
$159Frontier
Find Deal
Fri, Oct 31 - Mon, Nov 3
Multiple Airlines Logo
5:05 am - 6:30 pmORD-SAT
13h 25m1 stop
Multiple Airlines Logo
5:35 pm - 12:11 amSAT-ORD
6h 36m1 stop
$187Multiple Airlines
Find Deal
Wed, Nov 5 - Wed, Nov 5
Spirit Airlines Logo
5:05 am - 3:11 pmORD-SAT
10h 06m1 stop
Spirit Airlines Logo
4:16 pm - 11:42 pmSAT-ORD
7h 26m1 stop
$193Spirit Airlines
Find Deal
Wed, Oct 8 - Fri, Oct 10
Multiple Airlines Logo
7:15 am - 3:14 pmORD-SAT
7h 59m1 stop
Multiple Airlines Logo
7:35 pm - 11:45 pmSAT-ORD
28h 10m1 stop
$197Multiple Airlines
Find Deal
Wed, Nov 5 - Mon, Nov 10
Spirit Airlines Logo
5:05 am - 3:11 pmORD-SAT
10h 06m1 stop
Spirit Airlines Logo
6:23 pm - 6:25 amSAT-ORD
12h 02m1 stop
$205Spirit Airlines
Find Deal
Tue, Oct 21 - Tue, Oct 28
American Airlines Logo
6:45 am - 3:47 pmORD-SAT
9h 02m1 stop
American Airlines Logo
9:00 am - 5:10 pmSAT-ORD
8h 10m1 stop
$243American Airlines
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Wed, Oct 22 - Mon, Oct 27
American Airlines Logo
5:34 pm - 10:39 pmMLI-SAT
5h 05m1 stop
American Airlines Logo
6:05 am - 10:50 amSAT-MLI
4h 45m1 stop
$259American Airlines
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Tue, Oct 14 - Wed, Oct 22
Delta Logo
5:15 pm - 12:20 amSTL-SAT
7h 05m1 stop
Delta Logo
6:25 am - 2:32 pmSAT-STL
8h 07m1 stop
$259Delta
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Tue, Oct 14 - Mon, Oct 27
Delta Logo
5:15 pm - 12:20 amSTL-SAT
7h 05m1 stop
Delta Logo
6:15 pm - 11:06 pmSAT-STL
4h 51m1 stop
$269Delta
Find Deal

Everything you should know

Cheapest round-trip
$158
Overall average: $394
Frontier
Wed 10/8Sat 10/11
ORD - SAT • 1 stop
Cheapest non-stop
$297
Typical prices: $427-507
American Airlines
Sat 1/10Tue 1/13
ORD - SAT • Non-stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to San Antonio!
Useful Info

Good to know

Low seasonAugust
Cheapest flight$80
Best time to beat the crowds with an average 16% 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.

Traveling to a place near San Antonio?

Book flights to San Antonio if you plan to visit one of these locations
Schertz

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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