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$109+ Cheap flights from O'Hare Intl (ORD) to San Antonio (SAT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/14. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SAT
jul. 8 — jul. 151
mar. 7/8
mar. 7/15
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago O'Hare Intl to San Antonio are usually found in September or August, booked 82 days in advance, depart on a Tuesday or Thursday and return on a Thursday

Cheap flight deals from O'Hare Intl to San Antonio

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to San Antonio (SAT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated julio 3, 2025.

Round-trip from

$181
(Priceline)

One-way from

$112
(Mytrip)

Popular in

January

Cheapest in

September

Average price

$386

Good round-trip deal

$337 or less

Good one-way deal

$224 or less
From Chicago O'Hare Intl to San Antonio
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One-way flight from Chicago O'Hare Intl to San Antonio
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Highest demand for flights based on searches. 7% potential increase in price ($33 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Chicago O'Hare Intl to San Antonio.
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Price to beat on a one-way flight from Chicago O'Hare Intl to San Antonio.
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Find flight deals from O'Hare Intl to San Antonio

Cheapest flights from O'Hare Intl to San Antonio
Explore the most affordable flight options available from O'Hare Intl to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 3, 2025.

This Priceline deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/157:00 amORD - SAT
1 stop11h 02mMultiple Airlines
mar. 7/227:52 pmSAT - ORD
1 stop10h 11mMultiple Airlines
Deal found 6/30$181
This FlightHub deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/223:18 pmORD - SAT
1 stop27h 18mSpirit Airlines
jue. 8/75:38 pmSAT - ORD
1 stop27h 52mSpirit Airlines
Deal found 7/1$188
This Frontier deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/85:01 amORD - SAT
1 stop11h 51mFrontier
lun. 8/115:38 pmSAT - ORD
1 stop6h 44mFrontier
Deal found 7/2$194
This American Airlines deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/39:24 amORD - SAT
Nonstop2h 59mAmerican Airlines
jue. 9/41:00 pmSAT - ORD
Nonstop2h 59mAmerican Airlines
Deal found 7/3$235

Cheapflights Fare Finder

Customize your flight search to find flights from O'Hare Intl to San Antonio that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated julio 3, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to San Antonio that are best for you.

Fly from

O'Hare Intl

Fly to

San Antonio

Route

Depart

Return

Price

ChicagoSan Antonio

ORD - SAT

ORDSAT

Chicago O'Hare Intl

mar. 7/15

7:00 am-6:02 pm

1 stop11h 02m

San Antonio

mar. 7/22

7:52 pm-6:03 am

1 stop10h 11m

$181

ChicagoSan Antonio

ORD - SAT

ORDSAT

Chicago O'Hare Intl

mar. 7/22

3:18 pm-6:36 pm

1 stop27h 18m

San Antonio

jue. 8/7

5:38 pm-9:30 pm

1 stop27h 52m

$188

ChicagoSan Antonio

ORD - SAT

ORDSAT

Chicago O'Hare Intl

jue. 7/31

6:16 pm-4:52 pm

1 stop22h 36m

San Antonio

dom. 8/3

8:14 pm-12:32 am

1 stop28h 18m

$197

ChicagoSan Antonio

ORD - SAT

ORDSAT

Chicago O'Hare Intl

mié. 9/3

2:55 pm-5:49 pm

Nonstop2h 54m

San Antonio

jue. 9/4

1:00 pm-3:59 pm

Nonstop2h 59m

$235

ChicagoSan Antonio

ORD - SAT

ORDSAT

Chicago O'Hare Intl

jue. 8/14

6:00 am-1:53 pm

1 stop7h 53m

$109

ChicagoSan Antonio

ORD - SAT

ORDSAT

Chicago O'Hare Intl

lun. 11/3

10:10 am-4:40 pm

1 stop6h 30m

$110

ChicagoSan Antonio

ORD - SAT

ORDSAT

Chicago O'Hare Intl

lun. 9/8

7:54 pm-10:58 pm

Nonstop3h 04m

$118

ChicagoSan Antonio

ORD - SAT

ORDSAT

Chicago O'Hare Intl

mié. 12/3

6:00 am-2:38 pm

1 stop8h 38m

$127

ChicagoSan Antonio

ORD - SAT

ORDSAT

Chicago O'Hare Intl

lun. 12/15

5:55 pm-12:25 am

1 stop6h 30m

$128

ChicagoSan Antonio

ORD - SAT

ORDSAT

Chicago O'Hare Intl

jue. 10/23

7:30 am-2:30 pm

2 stops7h 00m

$133

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/3

The best insider tips for Chicago O'Hare Intl Airport to San Antonio flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Chicago O'Hare Intl Airport to San Antonio trip
Airports
ORD

For a quick departure, use the free shuttle train between terminals at ORD to avoid long walks.

Read more about ORDby Ramsey Qubein
SAT

Upon arrival at SAT, consider using the VIA Metropolitan Transit bus for a budget-friendly ride to downtown San Antonio.

Read more about SATby Ramsey Qubein
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on ORD and SAT

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

Best time to book a flight from O'Hare Intl to San Antonio

Have a flexible travel schedule? Discover the best time to fly to San Antonio from O'Hare Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Chicago O'Hare Intl Airport to San Antonio

How far ahead should I book a flight from Chicago O'Hare Intl Airport to San Antonio?

Use this chart to determine the optimal time to book a round-trip flight from O'Hare Intl to San Antonio. Price data was last updated on June 27, 2025.

The best time to book flights from Chicago O'Hare Intl Airport to San Antonio is 82 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to San Antonio?

Currently, August is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to San Antonio (average of $295). Flying from Chicago O'Hare Intl Airport to San Antonio in March is currently the most expensive (average of $376). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ORD to SAT?

Find hourly flight availability from O'Hare Intl to San Antonio. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated julio 3, 2025.

A simple way to save on the total cost of your ticket is to fly from Chicago O'Hare Intl Airport to San Antonio in the afternoon. If you’re flexible enough to do this you can expect to save up to 24% on your trip compared to booking a flight in the morning.

What is the cheapest day to fly from Chicago O'Hare Intl Airport to San Antonio?

Use this chart to determine the cheapest time to fly round-trip from O'Hare Intl to San Antonio. Price data was last updated on June 29, 2025.

Travelers seeking maximum savings on their Chicago O'Hare Intl Airport to San Antonio flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Chicago O'Hare Intl Airport to San Antonio

Explore weekly flight availability from O'Hare Intl to San Antonio. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated julio 3, 2025.

The most flights from ORD to SAT are scheduled on a Thursday (29 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (2 on average).

Reviews of airlines servicing San Antonio

Get insights into the airlines that provide service to San Antonio. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Antonio. Reviews last updated julio 3, 2025.
Get a feel of what it's like to fly with Southwest, United Airlines, and American Airlines from Chicago O'Hare Intl Airport to San Antonio by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,266 reviews

Overall

8.0

Food

7.0

Comfort

8.0

Boarding

8.2

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.0
Very good
4,266 reviews
Southwest
8.0
Very good
4,266 reviews

Overall

8.0

Food

7.0

Comfort

8.0

Boarding

8.2

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,861 reviews
Southwest
8.0
Very good
4,266 reviews

Overall

8.0

Food

7.0

Comfort

8.0

Boarding

8.2

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,266 reviews

Overall

8.0

Food

7.0

Comfort

8.0

Boarding

8.2

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Sun Country Air
6.9
Okay
339 reviews
Southwest
8.0
Very good
4,266 reviews

Overall

8.0

Food

7.0

Comfort

8.0

Boarding

8.2

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Spirit Airlines
6.3
Okay
8,086 reviews
Southwest
8.0
Very good
4,266 reviews

Overall

8.0

Food

7.0

Comfort

8.0

Boarding

8.2

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl to San Antonio. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to San Antonio from Chicago O'Hare Intl?

    San Antonio (SAT) is the airport you will fly into if you book a flight from Chicago O'Hare Intl to San Antonio. You should not have trouble finding flights to San Antonio from Chicago O'Hare Intl; the airport handles an average of 11 inbound flights from Chicago O'Hare Intl per day. You should also have plenty of airline options to choose from since 5 airlines have flights to the San Antonio airport from Chicago O'Hare Intl. It is only a 7.6 mi journey from San Antonio (SAT) to San Antonio’s city center.

  • What are the cheapest airlines flying from Chicago O'Hare Intl Airport to San Antonio round-trip?

    Our cheapest airline available from Chicago O'Hare Intl Airport to San Antonio is Spirit Airlines. Our recent data shows that you can find tickets from as low as $188 on this airline. Additional options worth looking into are Frontier and American Airlines, starting at $197 and $235 round-trip. Spirit Airlines is 54% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Chicago O'Hare Intl Airport to San Antonio one-way?

    One-way options have recently been found by users for as low as $112 on Spirit Airlines. Other airlines that offer cheap prices include Frontier from $114 and United Airlines from $118 one-way.

  • What are the most reliable airlines from Chicago O'Hare Intl Airport to San Antonio?

    No one likes to see their flight delayed. When booking a flight from Chicago O'Hare Intl Airport to San Antonio consider choosing SkyWest Airlines (81%), Air Canada (77%) or United Airlines (74%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Chicago O'Hare Intl Airport to San Antonio?

    Looking for the cheapest flight from Chicago O'Hare Intl Airport to San Antonio? While on average our users pay $438, our data indicates the cheapest price to be $148. The most popular route (Chicago O'Hare Intl - San Antonio), is priced around $153.

  • Can I find deals for flights from O'Hare Intl to San Antonio that include hotel bookings?

    Yes. In addition to deals on O'Hare Intl to San Antonio flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from O'Hare Intl to San Antonio?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from O'Hare Intl to San Antonio.

  • Can I find deals for business class flights from O'Hare Intl to San Antonio?

    Yes. Cheapflights offers flight deals from O'Hare Intl to San Antonio by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to San Antonio?

    Currently, August is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to San Antonio (average of $295). Flying from Chicago O'Hare Intl Airport to San Antonio in March is currently the most expensive (average of $376). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Chicago O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
New Braunfels

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Alternative routes for O'Hare Intl to San Antonio

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from O'Hare Intl to San Antonio

Discover the top 5 airlines that operate flights from O'Hare Intl to San Antonio. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated julio 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$125Average$173FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$132Average$257FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$199Average$404FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$296Average$584FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$297Average$472FlexibilityNo cancel feeOn-time69%

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