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Cheap flights from Illinois to San Antonio from $82

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 10/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Illinois to San Antonio

Cheap round-trip flights

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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Wed, Aug 20 - Sat, Aug 30
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
Fri, Oct 17 - Sat, Oct 25
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
United Airlines Logo
6:15 am - 10:51 amSTL-SAT
4h 36m1 stop
United Airlines Logo
5:20 am - 12:15 pmSAT-STL
6h 55m2 stops
$228United Airlines
Find Deal
Thu, Dec 11 - Tue, Dec 16
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
Sat, Sep 27 - Sun, Sep 28
American Airlines Logo
2:55 pm - 5:49 pmORD-SAT
2h 54mnonstop
American Airlines Logo
7:00 am - 9:53 amSAT-ORD
2h 53mnonstop
$235American Airlines
Find Deal
Wed, Sep 3 - Mon, Sep 8
American Airlines Logo
5:26 am - 9:24 amSTL-SAT
3h 58m1 stop
American Airlines Logo
6:10 pm - 11:34 pmSAT-STL
5h 24m1 stop
$237American Airlines
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Mon, Dec 8 - Mon, Dec 8
Delta Logo
6:00 am - 11:50 amSTL-SAT
5h 50m1 stop
Delta Logo
6:11 pm - 11:24 pmSAT-STL
5h 13m1 stop
$241Delta
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Sun, Sep 28 - Fri, Oct 3
Delta Logo
9:25 am - 3:31 pmMDW-SAT
6h 06m1 stop
Delta Logo
11:27 am - 6:37 pmSAT-MDW
7h 10m1 stop
$255Delta
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Thu, Aug 7 - Mon, Aug 11

Frontier flights from Illinois to San Antonio

Our best Frontier deals on Illinois to San Antonio flight tickets
Frontier
Oct 17
ORD6:00 amChicago O'Hare Intl
8h 33m
1 stop
SAT2:33 pmSan Antonio
Oct 25
SAT4:12 pmSan Antonio
7h 41m
1 stop
ORD11:53 pmChicago O'Hare Intl
$182
Find similar
Frontier
Oct 18
ORD7:20 amChicago O'Hare Intl
7h 54m
1 stop
SAT3:14 pmSan Antonio
Oct 27
SAT3:28 pmSan Antonio
8h 25m
1 stop
ORD11:53 pmChicago O'Hare Intl
$184
Find similar
Frontier
Oct 10
MDW6:15 amChicago Midway
10h 25m
1 stop
SAT4:40 pmSan Antonio
Oct 12
SAT3:28 pmSan Antonio
7h 10m
1 stop
MDW10:38 pmChicago Midway
$188
Find similar

Southwest flights from Illinois to San Antonio

Our best Southwest deals on Illinois to San Antonio flight tickets
Southwest
Aug 11
STL7:10 pmLambert-St Louis
2h 05m
SAT9:15 pmSan Antonio
Aug 18
SAT5:00 amSan Antonio
2h 10m
STL7:10 amLambert-St Louis
$217
Find similar
Southwest
Aug 11
STL7:10 pmLambert-St Louis
2h 05m
SAT9:15 pmSan Antonio
Aug 18
SAT5:35 amSan Antonio
5h 30m
1 stop
STL11:05 amLambert-St Louis
$222
Find similar
Southwest
Sep 11
STL7:10 pmLambert-St Louis
2h 05m
SAT9:15 pmSan Antonio
Sep 14
SAT5:00 amSan Antonio
2h 10m
STL7:10 amLambert-St Louis
$224
Find similar

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 September, then book flights to San Antonio from Illinois during August instead. Flights to San Antonio in August, while not as cheap as those in September, 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 Wednesday when prices can be found for as low as $392. 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 Monday as prices are generally higher than usual. According to our data, the average ticket price to San Antonio on Monday is $454.

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 at noon. momondo users have found flights departing from Illinois to San Antonio at noon for as low as $387. 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 $426. 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?

You are more likely to see cheaper flights to San Antonio from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to San Antonio for around $408 when searching weeks out. 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 $340 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 8% 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

$82

Fastest flight time

2h 05m

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 $82. The best round-trip flight deal from Illinois to San Antonio found on momondo in the last 72 hours is $179.
The fastest flight from Illinois to San Antonio takes 2h 05m
Direct flights go from Illinois to San Antonio every day.
There is 1 airport near San Antonio: San Antonio (SAT)
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  • 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
FrontierPriceFrom $125Free CancellationRating
5.9
3,256 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $132Free CancellationRating
6.3
8,045 reviews
Search Spirit Airlines flights
American AirlinesPriceFrom $197Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $232Free CancellationRating
8.0
4,241 reviews
Search Southwest flights
DeltaPriceFrom $258Free CancellationRating
8.0
7,956 reviews
Search Delta flights
United AirlinesPriceFrom $258Free CancellationRating
7.4
8,861 reviews
Search United Airlines flights

Traveling to a place near San Antonio?

Book flights to San Antonio if you plan to visit one of these locations
New Braunfels
Kerrville
Boerne
Schertz
Pleasanton

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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