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Cheap flights from Chicago O'Hare Intl Airport to San Antonio from $67

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago O'Hare Intl Airport to San Antonio departing on 9/4. 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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0 bags

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Find the cheapest flights from Chicago O'Hare Intl Airport to San Antonio

Cheap round-trip flights

American Airlines Logo
2:42 pm - 5:38 pmORD-SAT
2h 56mnonstop
American Airlines Logo
6:00 am - 8:55 amSAT-ORD
2h 55mnonstop
$133American Airlines
Find Deal
Tue, Aug 5 - Sat, Aug 9
American Airlines Logo
2:57 pm - 5:41 pmORD-SAT
2h 44mnonstop
American Airlines Logo
6:00 am - 8:55 amSAT-ORD
2h 55mnonstop
$134American Airlines
Find Deal
Thu, Aug 7 - Tue, Aug 26
Southwest Logo
1:50 pm - 11:05 pmORD-SAT
9h 15m2 stops
Southwest Logo
5:05 pm - 9:30 pmSAT-ORD
4h 25m1 stop
$158Southwest
Find Deal
Wed, Sep 24 - Wed, Oct 1
United Airlines Logo
7:55 pm - 10:59 pmORD-SAT
3h 04mnonstop
United Airlines Logo
6:48 am - 9:47 amSAT-ORD
2h 59mnonstop
$160United Airlines
Find Deal
Thu, Aug 28 - Tue, Sep 2
United Airlines Logo
8:55 am - 12:01 pmORD-SAT
3h 06mnonstop
United Airlines Logo
1:05 pm - 4:00 pmSAT-ORD
2h 55mnonstop
$161United Airlines
Find Deal
Wed, Sep 24 - Wed, Oct 1
Southwest Logo
7:30 am - 4:10 pmORD-SAT
8h 40m2 stops
Southwest Logo
6:00 am - 3:20 pmSAT-ORD
9h 20m2 stops
$163Southwest
Find Deal
Sat, Aug 9 - Wed, Aug 13
Spirit Airlines Logo
7:05 am - 7:23 pmORD-SAT
12h 18m1 stop
Spirit Airlines Logo
8:30 pm - 6:11 amSAT-ORD
9h 41m1 stop
$179Spirit Airlines
Find Deal
Wed, Sep 3 - Thu, Sep 4
Spirit Airlines Logo
7:08 am - 6:36 pmORD-SAT
11h 28m1 stop
Spirit Airlines Logo
5:38 pm - 9:30 pmSAT-ORD
27h 52m1 stop
$181Spirit Airlines
Find Deal
Tue, Aug 5 - Thu, Aug 7
Frontier Logo
7:20 am - 3:14 pmORD-SAT
7h 54m1 stop
Frontier Logo
2:54 pm - 11:53 pmSAT-ORD
8h 59m1 stop
$184Frontier
Find Deal
Sat, Nov 1 - Sun, Nov 2
Frontier Logo
7:00 am - 6:02 pmORD-SAT
11h 02m1 stop
Frontier Logo
5:38 pm - 12:22 amSAT-ORD
6h 44m1 stop
$187Frontier
Find Deal
Tue, Jul 22 - Fri, Jul 25

Spirit Airlines flights from Chicago O'Hare Intl Airport to San Antonio

Our best Spirit Airlines deals on Chicago O'Hare Intl Airport to San Antonio flight tickets
Spirit Airlines
Sep 3
ORD7:05 amChicago O'Hare Intl
12h 18m
1 stop
SAT7:23 pmSan Antonio
Sep 4
SAT8:30 pmSan Antonio
9h 41m
1 stop
ORD6:11 amChicago O'Hare Intl
Spirit Airlines
Aug 5
ORD7:08 amChicago O'Hare Intl
11h 28m
1 stop
SAT6:36 pmSan Antonio
Aug 7
SAT5:38 pmSan Antonio
27h 52m
1 stop
ORD9:30 pmChicago O'Hare Intl
Spirit Airlines
Aug 8
ORD7:08 amChicago O'Hare Intl
11h 28m
1 stop
SAT6:36 pmSan Antonio
Aug 10
SAT5:38 pmSan Antonio
27h 52m
1 stop
ORD9:30 pmChicago O'Hare Intl

Southwest flights from Chicago O'Hare Intl Airport to San Antonio

Our best Southwest deals on Chicago O'Hare Intl Airport to San Antonio flight tickets
Southwest
Sep 24
ORD1:50 pmChicago O'Hare Intl
9h 15m
2 stops
SAT11:05 pmSan Antonio
Oct 1
SAT5:05 pmSan Antonio
4h 25m
1 stop
ORD9:30 pmChicago O'Hare Intl
Southwest
Aug 9
ORD7:30 amChicago O'Hare Intl
8h 40m
2 stops
SAT4:10 pmSan Antonio
Aug 13
SAT6:00 amSan Antonio
9h 20m
2 stops
ORD3:20 pmChicago O'Hare Intl
Southwest
Aug 7
ORD3:10 pmChicago O'Hare Intl
8h 05m
1 stop
SAT11:15 pmSan Antonio
Aug 13
SAT6:50 amSan Antonio
5h 55m
1 stop
ORD12:45 pmChicago O'Hare Intl

See travel insights to San Antonio from

How to get the cheapest flight ticket from Chicago O'Hare Intl Airport 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 Chicago O'Hare Intl Airport during August instead. Flights to San Antonio in August, while not as cheap as those in September, still average around $358.

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 $458.

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 Chicago O'Hare Intl Airport 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 $428. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Chicago O'Hare Intl to San Antonio flight route?

Fly from Chicago O'Hare Intl to San Antonio for the best Chicago O'Hare Intl - 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 Chicago O'Hare Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to San Antonio for around $413 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Antonio from Chicago O'Hare Intl Airport for as low as $347 on momondo.

What cabin class options are available on Chicago O'Hare Intl to San Antonio flights?

There are 4 cabin classes available to choose from on Chicago O'Hare Intl 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 Chicago O'Hare Intl Airport to San Antonio flights?

No. A direct flight is the cheapest option for a flight between Chicago O'Hare Intl Airport to San Antonio.

How have Chicago O'Hare Intl Airport to San Antonio flight prices changed over time?

As of July 2025, prices for Chicago O'Hare Intl Airport to San Antonio flights are approximately 9% more expensive when compared to flights at the same time last year.

When to book flights from Chicago O'Hare Intl Airport to San Antonio

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago O'Hare Intl Airport to San Antonio according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Chicago O'Hare Intl Airport to San Antonio (ORD to SAT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to San Antonio

Best Price Found

$67

Fastest flight time

2h 44m

Direct flights

Every day

Airports in San Antonio

1 airport
The best one-way flight to San Antonio from Chicago O'Hare Intl Airport in the past 72 hours is $67. The best round-trip flight deal from Chicago O'Hare Intl Airport to San Antonio found on momondo in the last 72 hours is $133.
The fastest flight from Chicago O'Hare Intl Airport to San Antonio takes 2h 44m
Direct flights go from Chicago O'Hare Intl Airport to San Antonio every day.
There is 1 airport near San Antonio: San Antonio (SAT)

  • How far is Chicago O'Hare Intl to San Antonio by plane?

    The distance between Chicago O'Hare Intl and San Antonio is about 1048.8 mi. Typically, this will take 2h 44m by plane in normal conditions.

  • When did momondo last update prices for flights from Chicago O'Hare Intl Airport to San Antonio Airport?

    Prices for flights from Chicago O'Hare Intl Airport to San Antonio Airport refresh daily.

  • How many operators does momondo search for flights from Chicago O'Hare Intl Airport to San Antonio Airport?

  • How old do you have to be to fly from Chicago O'Hare Intl Airport 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 Chicago O'Hare Intl Airport 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 Chicago O'Hare Intl Airport to San Antonio?

  • What is the most popular airline from Chicago O'Hare Intl Airport to San Antonio?


Best airlines flying from Chicago O'Hare Intl Airport to San Antonio

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to San Antonio with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $125Free CancellationRating
5.9
3,268 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $132Free CancellationRating
6.3
8,060 reviews
Search Spirit Airlines flights
American AirlinesPriceFrom $201Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $296Free CancellationRating
8.0
4,253 reviews
Search Southwest flights
United AirlinesPriceFrom $297Free CancellationRating
7.4
8,843 reviews
Search United Airlines flights
  • Southwest Flights From Chicago O'Hare Intl Airport to San Antonio

    Southwest flight deals from Chicago O'Hare Intl Airport to San Antonio start from $296 round-trip. Over the 2 Southwest flights for this route in a normal week, average airfare is usually $584 round-trip - but some users have found much cheaper deals with momondo.

  • United Airlines Flights From Chicago O'Hare Intl Airport to San Antonio

    United Airlines (7.4/10 from 8,842 reviews) operates around 28 flights from Chicago O'Hare Intl Airport to San Antonio in any given week. The average United Airlines airfare for this route is around $476, with deals from around $297 rare but found on momondo. Referenced prices are for round-trip Chicago O'Hare Intl Airport to San Antonio flight searches in the last 72 hours.


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 Chicago to San Antonio?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Chicago to San Antonio. momondo saves you time and could save you money on your trip.

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

Flights from Chicago to San Antonio with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to San Antonio from Chicago.

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

Of course. momondo tracks the price of Chicago 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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1 adult
Mon 7/14
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