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Cheap flights from Illinois to San Antonio from $53

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to San Antonio departing on 2/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Illinois to San Antonio

Cheap round-trip flights

These are some of the best round-trip flight deals from Illinois to San Antonio that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Illinois to San Antonio.

Cheap last minute flights

Planning a quick getaway from Illinois to San Antonio? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to San Antonio, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Illinois to San Antonio

Find recent round-trip train or bus tickets from Illinois to San Antonio.

All round-trip flight deals to San Antonio

The cheapest plane tickets to San Antonio found on KAYAK recently.
6:36 pm - 7:45 pmORD-SAT
25h 09m1 stop
7:10 pm - 9:54 amSAT-ORD
14h 44m1 stop
$104Frontier
Find Deal
Thu, Jan 9 - Sat, Jan 11
6:36 pm - 7:45 pmORD-SAT
25h 09m1 stop
7:10 pm - 9:54 amSAT-ORD
14h 44m1 stop
$118Frontier
Find Deal
Thu, Jan 9 - Sat, Jan 11
10:59 am - 6:25 pmORD-SAT
7h 26m1 stop
4:23 pm - 5:30 amSAT-ORD
13h 07m1 stop
Fri, Jan 10 - Tue, Jan 14
4:11 pm - 6:09 pmORD-SAT
25h 58m1 stop
4:23 pm - 5:30 amSAT-ORD
13h 07m1 stop
Sun, Jan 12 - Wed, Jan 15
1:39 pm - 3:00 pmORD-SAT
25h 21m1 stop
4:23 pm - 5:30 amSAT-ORD
13h 07m1 stop
$183Spirit Airlines
Find Deal
Tue, Jan 21 - Wed, Jan 29
8:00 am - 7:11 pmORD-SAT
11h 11m1 stop
4:23 pm - 5:30 amSAT-ORD
13h 07m1 stop
$192Spirit Airlines
Find Deal
Wed, Jan 22 - Wed, Jan 29
11:55 am - 8:34 pmSTL-SAT
8h 39m1 stop
12:33 pm - 4:33 pmSAT-STL
4h 00m1 stop
$218American Airlines
Find Deal
Tue, Feb 18 - Sat, Feb 22
9:15 am - 1:35 pmSTL-SAT
4h 20m1 stop
12:33 pm - 4:33 pmSAT-STL
4h 00m1 stop
$223American Airlines
Find Deal
Wed, Feb 26 - Sat, Mar 1
6:30 am - 3:42 pmSTL-SAT
9h 12m2 stops
5:48 pm - 10:20 pmSAT-STL
4h 32m1 stop
$243United Airlines
Find Deal
Tue, Feb 4 - Sun, Feb 9
4:36 pm - 9:18 pmSTL-SAT
4h 42m1 stop
5:30 am - 2:14 pmSAT-STL
8h 44m2 stops
$253United Airlines
Find Deal
Fri, Jan 17 - Sun, Jan 19
6:50 am - 1:18 pmORD-SAT
6h 28m1 stop
$53Frontier
Find Deal
Tue, Feb 25
11:33 am - 6:15 pmMDW-SAT
6h 42m1 stop
$53Frontier
Find Deal
Mon, Jan 20
9:54 pm - 1:12 pmORD-SAT
15h 18m1 stop
$82Spirit Airlines
Find Deal
Mon, Jan 6
7:20 am - 5:04 amORD-SAT
21h 44m2 stops
$97Spirit Airlines
Find Deal
Tue, Feb 25
1:40 pm - 7:41 pmSTL-SAT
6h 01m1 stop
$109American Airlines
Find Deal
Mon, Jan 20
3:26 pm - 11:59 pmSTL-SAT
8h 33m1 stop
$114Delta
Find Deal
Wed, Dec 18
6:04 pm - 11:56 pmSTL-SAT
5h 52m1 stop
$124Delta
Find Deal
Thu, Dec 19
10:58 am - 10:09 amMDW-SAT
23h 11m1 stop
Sun, Dec 8
8:50 am - 1:01 amMDW-SAT
16h 11m1 stop
Thu, Nov 28
5:00 am - 1:35 pmORD-SAT
8h 35m1 stop
$157American Airlines
Find Deal
Wed, Mar 5
7:31 pm - 6:03 pmORD-SAT
22h 32m1 stop
6:42 pm - 9:54 amSAT-ORD
15h 12m1 stop
$308Frontier
Find Deal
Fri, Nov 22 - Thu, Dec 26
9:00 am - 10:55 amMDW-SAT
25h 55m1 stop
9:49 pm - 11:44 amSAT-MDW
13h 55m1 stop
$364Frontier
Find Deal
Sun, Nov 24 - Mon, Nov 25
8:27 pm - 4:59 amORD-SAT
8h 32m1 stop
11:15 am - 8:15 pmSAT-ORD
9h 00m1 stop
$383Spirit Airlines
Find Deal
Sat, Nov 23 - Sat, Dec 7
8:21 pm - 10:55 amORD-SAT
14h 34m1 stop
1:18 pm - 4:35 amSAT-ORD
15h 17m1 stop
Sun, Nov 24 - Tue, Nov 26
5:15 pm - 10:49 pmPIA-SAT
5h 34m1 stop
2:13 pm - 9:40 pmSAT-PIA
7h 27m1 stop
$388United Airlines
Find Deal
Sat, Nov 23 - Mon, Nov 25
8:27 pm - 12:23 pmORD-SAT
15h 56m1 stop
1:18 pm - 6:31 pmSAT-ORD
29h 13m2 stops
$391Spirit Airlines
Find Deal
Sat, Nov 23 - Mon, Nov 25
3:40 pm - 10:58 pmPIA-SAT
7h 18m1 stop
2:31 pm - 9:38 pmSAT-PIA
7h 07m2 stops
$393American Airlines
Find Deal
Sat, Nov 23 - Mon, Nov 25
6:00 am - 2:28 pmPIA-SAT
8h 28m2 stops
2:31 pm - 9:38 pmSAT-PIA
7h 07m2 stops
$398American Airlines
Find Deal
Sat, Nov 23 - Mon, Nov 25
7:31 pm - 6:03 pmORD-SAT
22h 32m1 stop
1:18 pm - 4:35 amSAT-ORD
15h 17m1 stop
Fri, Nov 22 - Mon, Nov 25
7:40 pm - 10:49 pmORD-SAT
3h 09mnonstop
2:00 pm - 4:51 pmSAT-ORD
2h 51mnonstop
$757United Airlines
Find Deal
Fri, Nov 22 - Thu, Dec 26
11:15 am - 1:40 pmSTL-SAT
2h 25mnonstop
12:10 pm - 2:15 pmSAT-STL
2h 05mnonstop
$331Southwest
Find Deal
Tue, Feb 4 - Sun, Feb 9
11:15 am - 1:40 pmSTL-SAT
2h 25mnonstop
5:05 pm - 7:10 pmSAT-STL
2h 05mnonstop
$344Southwest
Find Deal
Sun, Feb 9 - Sun, Feb 16
9:20 am - 12:20 pmMDW-SAT
3h 00mnonstop
8:10 am - 10:40 amSAT-MDW
2h 30mnonstop
$345Southwest
Find Deal
Sat, Dec 14 - Mon, Dec 16
7:40 pm - 10:49 pmORD-SAT
3h 09mnonstop
7:00 am - 9:48 amSAT-ORD
2h 48mnonstop
$347United Airlines
Find Deal
Thu, Dec 12 - Mon, Dec 16
6:45 pm - 9:50 pmMDW-SAT
3h 05mnonstop
2:25 pm - 5:00 pmSAT-MDW
2h 35mnonstop
$348Southwest
Find Deal
Thu, Feb 6 - Sun, Feb 9
8:45 pm - 11:49 pmORD-SAT
3h 04mnonstop
6:00 am - 8:51 amSAT-ORD
2h 51mnonstop
$351American Airlines
Find Deal
Fri, Dec 13 - Mon, Dec 16
8:45 pm - 11:51 pmORD-SAT
3h 06mnonstop
1:50 pm - 4:42 pmSAT-ORD
2h 52mnonstop
$352American Airlines
Find Deal
Sun, Jan 12 - Wed, Jan 15
10:15 am - 1:13 pmORD-SAT
2h 58mnonstop
1:50 pm - 4:42 pmSAT-ORD
2h 52mnonstop
$362American Airlines
Find Deal
Sat, Jan 18 - Wed, Jan 22
9:07 am - 12:23 pmORD-SAT
3h 16mnonstop
8:30 am - 11:22 amSAT-ORD
2h 52mnonstop
$384United Airlines
Find Deal
Tue, Dec 24 - Tue, Dec 31
8:02 pm - 11:12 pmORD-SAT
3h 10mnonstop
2:00 pm - 4:51 pmSAT-ORD
2h 51mnonstop
$387United Airlines
Find Deal
Thu, Dec 19 - Fri, Dec 27

Frontier flights from Illinois to San Antonio

Our best Frontier deals on Illinois to San Antonio flight tickets
Frontier
Jan 9
ORD6:36 pmChicago O'Hare Intl
25h 09m
1 stop
SAT7:45 pmSan Antonio
Jan 11
SAT7:10 pmSan Antonio
14h 44m
1 stop
ORD9:54 amChicago O'Hare Intl
Frontier
Jan 9
MDW12:43 pmChicago Midway
31h 02m
1 stop
SAT7:45 pmSan Antonio
Jan 11
SAT7:10 pmSan Antonio
14h 45m
1 stop
MDW9:55 amChicago Midway
Frontier
Jan 9
MDW12:43 pmChicago Midway
31h 02m
1 stop
SAT7:45 pmSan Antonio
Jan 11
SAT7:10 pmSan Antonio
14h 45m
1 stop
MDW9:55 amChicago Midway

Spirit Airlines flights from Illinois to San Antonio

Our best Spirit Airlines deals on Illinois to San Antonio flight tickets
Spirit Airlines
Jan 21
ORD1:39 pmChicago O'Hare Intl
25h 21m
1 stop
SAT3:00 pmSan Antonio
Jan 29
SAT4:23 pmSan Antonio
13h 07m
1 stop
ORD5:30 amChicago O'Hare Intl
Spirit Airlines
Jan 22
ORD8:00 amChicago O'Hare Intl
11h 11m
1 stop
SAT7:11 pmSan Antonio
Jan 29
SAT4:23 pmSan Antonio
13h 07m
1 stop
ORD5:30 amChicago O'Hare Intl
Spirit Airlines
Jan 21
ORD1:39 pmChicago O'Hare Intl
25h 21m
1 stop
SAT3:00 pmSan Antonio
Jan 30
SAT7:00 pmSan Antonio
15h 02m
1 stop
ORD10:02 amChicago O'Hare Intl

See travel insights to San Antonio from

How to get the cheapest flight ticket from Illinois to San Antonio

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to San Antonio?

If you aren’t able to travel during the month of February, then book flights to San Antonio from Illinois during January instead. Flights to San Antonio in January, while not as cheap as those in February, still average around $337.

What is the cheapest day to depart on your flight to San Antonio?

The cheapest day to depart on your flight to San Antonio is on a Tuesday when prices can be found for as low as $370. This is often the case because there is less demand to fly during this day of the week. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to San Antonio on Sunday is $439.

What is the cheapest time of day to depart on your flight to San Antonio?

According to our data, the cheapest time of day to fly to San Antonio is in the afternoon. momondo users have found flights departing from Illinois to San Antonio in the afternoon for as low as $290. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to San Antonio are more costly in the morning, with an average ticket price of $401. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Illinois to San Antonio flight route?

Fly from Chicago O'Hare Intl to San Antonio for the best Illinois - San Antonio flight prices

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

In general, most travelers find the cheapest time to book a flight to San Antonio is about 36 days prior to their departure date when tickets on average are $384. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Antonio from Illinois for as low as $275 on momondo.

What cabin class options are available on Illinois to San Antonio flights?

There are 4 cabin classes available to choose from on Illinois to San Antonio flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Illinois to San Antonio flights?

You could potentially save up to 69% on your flight if you consider stops on a Illinois to San Antonio flight.

Cheap Illinois to San Antonio flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to San Antonio

Best Price Found

$53

Fastest flight time

2h 15m

Direct flights

Every day

Airports in San Antonio

1 airport
The best one-way flight to San Antonio from Illinois in the past 72 hours is $53. The best round-trip flight deal from Illinois to San Antonio found on momondo in the last 72 hours is $104.
The fastest flight from Illinois to San Antonio takes 2h 15m
Direct flights go from Illinois to San Antonio every day.
There is 1 airport near San Antonio: San Antonio (SAT)

  • When did momondo last update prices for flights from Illinois to San Antonio Airport?

    Prices for flights from Illinois to San Antonio Airport were last updated today.

  • How many operators does momondo search for flights from Illinois to San Antonio Airport?

  • How old do you have to be to fly from Illinois to San Antonio Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to San Antonio Airport.

  • What documentation or ID do you need to fly to San Antonio Airport?

    The required travel and health documents for your San Antonio Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Antonio Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Illinois to San Antonio?


Best airlines flying from Illinois to San Antonio

Compare and see reviews for airlines that fly from Illinois to San Antonio with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $90Free CancellationRating
6.3
8,169 reviews
Search Spirit Airlines flights
FrontierPriceFrom $126Free CancellationRating
6.1
3,536 reviews
Search Frontier flights
SouthwestPriceFrom $131Free CancellationRating
8.1
5,005 reviews
Search Southwest flights
American AirlinesPriceFrom $188Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $236Free CancellationRating
8.0
8,755 reviews
Search Delta flights
United AirlinesPriceFrom $256Free CancellationRating
7.4
9,172 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Illinois to San Antonio?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Illinois to San Antonio. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Illinois to San Antonio with flexible booking policies on momondo?

momondo does allow users to show only those flights to San Antonio from Illinois which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Illinois to San Antonio?

Once all potential Illinois to San Antonio flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Illinois to San Antonio right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Illinois to San Antonio flights. All you need is a valid email address and we will do the rest; it is that quick and easy.


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