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Cheap flights from Chicago to San Antonio from $51

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 to San Antonio departing on 5/15. 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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Easily compare round-trip flights from Chicago to San Antonio

Below you can see the best fares for your round-trip flight route over the next six months. All fares were found on momondo this week. Browse the quickest and cheapest flights from Chicago to San Antonio by changing tabs
Frontier
May 16
ORD5:56 pmChicago O'Hare Intl
26h 07m
1 stop
SAT8:03 pmSan Antonio
May 20
SAT8:00 pmSan Antonio
29h 08m
1 stop
ORD1:08 amChicago O'Hare Intl
Multiple Airlines
May 15
ORD6:40 pmChicago O'Hare Intl
29h 41m
1 stop
SAT12:21 amSan Antonio
May 18
SAT6:48 pmSan Antonio
10h 12m
1 stop
ORD5:00 amChicago O'Hare Intl
Spirit Airlines
May 7
ORD6:09 amChicago O'Hare Intl
9h 39m
1 stop
SAT3:48 pmSan Antonio
May 14
SAT8:41 pmSan Antonio
9h 49m
1 stop
ORD6:30 amChicago O'Hare Intl
Frontier
May 16
ORD5:56 pmChicago O'Hare Intl
26h 07m
1 stop
SAT8:03 pmSan Antonio
May 20
SAT8:00 pmSan Antonio
29h 08m
1 stop
ORD1:08 amChicago O'Hare Intl
Frontier
May 16
ORD5:56 pmChicago O'Hare Intl
26h 07m
1 stop
SAT8:03 pmSan Antonio
May 20
SAT8:00 pmSan Antonio
29h 08m
1 stop
ORD1:08 amChicago O'Hare Intl
Frontier
May 14
ORD6:27 pmChicago O'Hare Intl
16h 55m
1 stop
SAT11:22 amSan Antonio
May 18
SAT6:48 pmSan Antonio
10h 12m
1 stop
ORD5:00 amChicago O'Hare Intl

Find the cheapest one-way flights from Chicago to San Antonio

If you're looking for one-way flights from Chicago to San Antonio, view some of our deals below provided by American Airlines, Frontier and Spirit Airlines
Spirit Airlines
May 15
ORD6:10 amChicago O'Hare Intl
7h 31m
1 stop
SAT1:41 pmSan Antonio
Frontier
May 14
MDW10:55 pmChicago Midway
12h 27m
1 stop
SAT11:22 amSan Antonio
Sun Country Air
Jul 4
ORD6:30 pmChicago O'Hare Intl
15h 25m
1 stop
SAT9:55 amSan Antonio

Search last-minute flights to San Antonio from Chicago

Find and compare round-trip flight prices for your last-minute flight from Chicago to San Antonio
Frontier
May 4
MDW10:59 pmChicago Midway
11h 57m
1 stop
SAT10:56 amSan Antonio
May 6
SAT9:36 pmSan Antonio
14h 00m
1 stop
MDW11:36 amChicago Midway
Spirit Airlines
May 7
ORD10:38 amChicago O'Hare Intl
14h 04m
1 stop
SAT12:42 amSan Antonio
May 14
SAT10:53 pmSan Antonio
13h 19m
1 stop
ORD12:12 pmChicago O'Hare Intl
Multiple Airlines
May 6
ORD5:00 amChicago O'Hare Intl
19h 42m
1 stop
SAT12:42 amSan Antonio
May 10
SAT2:47 pmSan Antonio
8h 56m
1 stop
ORD11:43 pmChicago O'Hare Intl
Frontier
May 7
MDW10:59 pmChicago Midway
22h 05m
1 stop
SAT9:04 pmSan Antonio
May 11
SAT9:20 amSan Antonio
23h 11m
1 stop
MDW8:31 amChicago Midway
Frontier
May 3
ORD6:27 pmChicago O'Hare Intl
13h 53m
1 stop
SAT8:20 amSan Antonio
May 6
SAT4:47 pmSan Antonio
6h 56m
1 stop
ORD11:43 pmChicago O'Hare Intl
Frontier
May 2
ORD6:27 pmChicago O'Hare Intl
27h 32m
1 stop
SAT9:59 pmSan Antonio
May 4
SAT9:20 amSan Antonio
15h 36m
1 stop
ORD12:56 amChicago O'Hare Intl

Best airlines flying from Chicago to San Antonio

Compare and see reviews for airlines that fly from Chicago to San Antonio with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $118Free CancellationRating
6.4
8,743 reviews
Search Spirit Airlines flights
FrontierPriceFrom $158Free CancellationRating
6.3
4,132 reviews
Search Frontier flights
American AirlinesPriceFrom $192Free CancellationRating
7.3
14,875 reviews
Search American Airlines flights
United AirlinesPriceFrom $213Free CancellationRating
7.4
11,228 reviews
Search United Airlines flights
DeltaPriceFrom $237Free CancellationRating
8.0
10,951 reviews
Search Delta flights
  • United Airlines Flights From Chicago to San Antonio

    United Airlines is one of the most popular airlines flying from Chicago to San Antonio, operating 15 flights/week on average for this route. A good United Airlines flight deal for Chicago to San Antonio starts from $213 round-trip, up to an average price of $382. Our users have rated United Airlines at 7.4/10.

  • American Airlines Flights From Chicago to San Antonio

    $192 is the best American Airlines flight deal from Chicago to San Antonio found on momondo over the last 72 hours. The average American Airlines ticket price found was closer to $363, however, with flight time and availability significantly affecting the price. American Airlines (7.3/10 from 14,875 user reviews) flies into San Antonio from Chicago 6 times in an average week so prices can vary.


Spirit Airlines flights from Chicago to San Antonio

Our best Spirit Airlines deals on Chicago to San Antonio flight tickets
Spirit Airlines
May 7
ORD6:09 amChicago O'Hare Intl
9h 39m
1 stop
SAT3:48 pmSan Antonio
May 14
SAT8:41 pmSan Antonio
9h 49m
1 stop
ORD6:30 amChicago O'Hare Intl
Spirit Airlines
May 18
ORD7:30 amChicago O'Hare Intl
11h 38m
1 stop
SAT7:08 pmSan Antonio
May 21
SAT5:46 amSan Antonio
11h 54m
1 stop
ORD5:40 pmChicago O'Hare Intl
Spirit Airlines
May 8
ORD6:10 amChicago O'Hare Intl
7h 31m
1 stop
SAT1:41 pmSan Antonio
May 11
SAT9:22 pmSan Antonio
14h 50m
1 stop
ORD12:12 pmChicago O'Hare Intl

Frontier flights from Chicago to San Antonio

Our best Frontier deals on Chicago to San Antonio flight tickets
Frontier
May 16
ORD5:56 pmChicago O'Hare Intl
26h 07m
1 stop
SAT8:03 pmSan Antonio
May 20
SAT8:00 pmSan Antonio
29h 08m
1 stop
ORD1:08 amChicago O'Hare Intl
Frontier
May 16
ORD5:56 pmChicago O'Hare Intl
26h 07m
1 stop
SAT8:03 pmSan Antonio
May 20
SAT8:00 pmSan Antonio
29h 08m
1 stop
ORD1:08 amChicago O'Hare Intl
Frontier
May 16
ORD5:56 pmChicago O'Hare Intl
26h 07m
1 stop
SAT8:03 pmSan Antonio
May 20
SAT8:00 pmSan Antonio
29h 08m
1 stop
ORD1:08 amChicago O'Hare Intl

How to get the cheapest flight ticket from Chicago 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 from Chicago to San Antonio?

September. The cheapest time of year to fly to San Antonio from Chicago is September. Most expensive is March

What is the cheapest day to depart Chicago for San Antonio?

Tuesday. The cheapest day of the week is typically Tuesday. The most expensive is typically Sunday

When is the cheapest time to fly from Chicago to San Antonio?

At noon. Chicago to San Antonio flights are approximately 8% more expensive in the morning than at noon

What is the cheapest airline that flies to San Antonio from Chicago?

Spirit Airlines. American Airlines, Delta, and Frontier are the most popular carriers operating from Chicago to San Antonio

What is the cheapest Chicago to San Antonio flight route?

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

How far in advance should you book Chicago to San Antonio flights?

57 days before. The cheapest time to buy a flight from Chicago to San Antonio is approximately 57 days to departure

How many flights depart from Chicago to San Antonio on average per day?

The number of flights available between Chicago and San Antonio is 15 per day as of April 2024. The most frequent departure time is 7:00PM, with 72% of daily flights leaving in the evening.

How many flights depart from Chicago to San Antonio on average per week?

106 flights are operational weekly from Chicago to San Antonio as of April 2024. The most popular departure day for this route is Monday, with 19% of flights per week taking off on this day.

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

There are 3 cabin classes available to choose from on Chicago 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 to San Antonio flights?

You could potentially save up to 70% on your flight if you consider stops on a Chicago to San Antonio flight.

Cheap Chicago to San Antonio (CHI to SAT) flight deals and tips

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

Best Price Found

$51

Fastest flight time

2h 42m

Direct flights

Mon, Tue, Wed, Thu, Fri and Sat

Airports in San Antonio

1 airport
The best one-way flight to San Antonio from Chicago in the past 72 hours is $51. The best round-trip flight deal from Chicago to San Antonio found on momondo in the last 72 hours is $96.
The fastest flight from Chicago to San Antonio takes 2h 42m
Direct flights go from Chicago to San Antonio on Monday, Tuesday, Wednesday, Thursday, Friday and Saturday. Airlines offering direct flights are: United Airlines and American Airlines.
There is 1 airport near San Antonio: San Antonio (SAT)

  • How far is Chicago to San Antonio by plane?

    The straight-line distance from Chicago to San Antonio is 1052.0 mi. A reasonable flight in good conditions will take 4h 57m.

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

    Prices for flights from Chicago to San Antonio Airport refresh daily.

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Chicago to San Antonio Airport.

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

    The travel and health documents you'll need for your trip to San Antonio Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Antonio Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.


Why use momondo?

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

Finding the right flight to San Antonio from Chicago is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to San Antonio quick and easy, saving you time and money.

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

Yes. All flights to San Antonio from Chicago on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once all potential Chicago 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 Chicago to San Antonio right now. Can momondo alert me if prices change?

If you are simply researching potential flights to San Antonio, momondo offers a useful price alert feature which will track prices for flights to San Antonio from Chicago and alert you when they change.


An easier way to manage your San Antonio trip

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