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$79+ 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 12/13. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SAT
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago O'Hare Intl to San Antonio are usually found in August or September, booked 57 days in advance, depart on a Wednesday or Thursday and return on a Thursday

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 October 29, 2025.

This CheapOair deal was found by Cheapflights users on 10/27. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/56:05 pmORD - SAT
1 stop25h 01mFrontier
Mon 11/105:35 pmSAT - ORD
1 stop6h 36mFrontier
Deal found 10/27$153
This Mytrip deal was found by Cheapflights users on 10/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1110:52 amORD - SAT
1 stop7h 40mMultiple Airlines
Sat 11/153:12 pmSAT - ORD
1 stop8h 17mMultiple Airlines
Deal found 10/27$158
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/62:26 pmORD - SAT
1 stop17h 29mMultiple Airlines
Thu 12/112:13 pmSAT - ORD
1 stop7h 06mMultiple Airlines
Deal found 10/27$159
This CheapOair deal was found by Cheapflights users on 10/27. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/66:00 amORD - SAT
1 stop13h 06mFrontier
Mon 11/105:35 pmSAT - ORD
1 stop6h 36mFrontier
Deal found 10/27$160
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/26:48 amORD - SAT
1 stop9h 11mMultiple Airlines
Fri 12/55:46 pmSAT - ORD
1 stop18h 08mMultiple Airlines
Deal found 10/27$161
This CheapOair deal was found by Cheapflights users on 10/27. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/96:00 amORD - SAT
1 stop13h 30mFrontier
Thu 11/138:38 pmSAT - ORD
1 stop27h 37mFrontier
Deal found 10/27$163
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/16:15 pmORD - SAT
1 stop21h 44mMultiple Airlines
Fri 12/55:46 pmSAT - ORD
1 stop18h 08mMultiple Airlines
Deal found 10/29$164
This Cheapflightsfares deal was found by Cheapflights users on 10/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1810:52 amORD - SAT
1 stop7h 40mSpirit Airlines
Mon 11/247:37 pmSAT - ORD
1 stop13h 40mSpirit Airlines
Deal found 10/28$165
This Spirit deal was found by Cheapflights users on 10/27. 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 Spirit is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1910:52 amORD - SAT
1 stop7h 40mSpirit Airlines
Wed 11/197:37 pmSAT - ORD
1 stop13h 40mSpirit Airlines
Deal found 10/27$166
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/47:00 amORD - SAT
1 stop7h 11mMultiple Airlines
Sat 12/62:13 pmSAT - ORD
2 stops18h 29mMultiple Airlines
Deal found 10/27$170
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1812:37 pmORD - SAT
2 stops29h 55mMultiple Airlines
Thu 11/208:33 pmSAT - ORD
1 stop10h 53mMultiple Airlines
Deal found 10/28$171
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/38:00 amORD - SAT
2 stops24h 15mFrontier
Sun 12/75:46 pmSAT - ORD
1 stop28h 38mFrontier
Deal found 10/28$172

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 October 29, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$153
(Kiwi.com)

One-way from

$79
(Kiwi.com)

Popular in

January

Cheapest in

August

Average price

$410

Good round-trip deal

$347 or less

Good one-way deal

$173 or less
Provider with most accurate pricing for Chicago O'Hare Intl-San Antonio flight deals.
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Provider most trusted by Cheapflights users for Chicago O'Hare Intl-San Antonio flights.
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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. 9% potential increase in price ($43 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
Search Deals
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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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 October 29, 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

Tue 12/9

10:45 am-4:04 pm

1 stop5h 19m

San Antonio

Wed 12/10

6:25 am-11:40 am

1 stop5h 15m

$317

ChicagoSan Antonio

ORD - SAT

ORDSAT

Chicago O'Hare Intl

Mon 12/15

7:52 pm-10:59 pm

Nonstop3h 07m

San Antonio

Thu 1/1

10:00 am-12:51 pm

Nonstop2h 51m

$317

ChicagoSan Antonio

ORD - SAT

ORDSAT

Chicago O'Hare Intl

Sat 12/6

4:05 pm-9:19 pm

1 stop5h 14m

San Antonio

Tue 12/9

11:36 am-6:43 pm

1 stop7h 07m

$317

ChicagoSan Antonio

ORD - SAT

ORDSAT

Chicago O'Hare Intl

Wed 12/10

10:45 am-4:04 pm

1 stop5h 19m

San Antonio

Fri 12/12

6:25 am-11:40 am

1 stop5h 15m

$342

ChicagoSan Antonio

ORD - SAT

ORDSAT

Chicago O'Hare Intl

Fri 12/19

9:39 am-12:17 am

2 stops14h 38m

San Antonio

Sun 12/21

6:45 am-12:12 am

1 stop17h 27m

$358

ChicagoSan Antonio

ORD - SAT

ORDSAT

Chicago O'Hare Intl

Fri 12/26

7:59 pm-11:12 pm

Nonstop3h 13m

San Antonio

Wed 12/31

2:08 pm-5:00 pm

Nonstop2h 52m

$367

ChicagoSan Antonio

ORD - SAT

ORDSAT

Chicago O'Hare Intl

Mon 12/8

6:00 am-11:56 am

1 stop5h 56m

San Antonio

Mon 12/8

4:52 pm-9:56 pm

1 stop5h 04m

$367

ChicagoSan Antonio

ORD - SAT

ORDSAT

Chicago O'Hare Intl

Tue 12/9

9:15 am-12:28 pm

Nonstop3h 13m

San Antonio

Tue 12/9

5:20 pm-8:17 pm

Nonstop2h 57m

$377

ChicagoSan Antonio

ORD - SAT

ORDSAT

Chicago O'Hare Intl

Wed 12/10

6:00 am-10:51 am

1 stop4h 51m

San Antonio

Wed 12/10

5:20 pm-8:17 pm

Nonstop2h 57m

$387

ChicagoSan Antonio

ORD - SAT

ORDSAT

Chicago O'Hare Intl

Thu 12/25

6:45 am-12:28 pm

1 stop5h 43m

San Antonio

Mon 12/29

5:10 am-11:27 am

1 stop6h 17m

$387

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 20 results
1
2

Compare providers for flights from O'Hare Intl to San Antonio

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from O'Hare Intl to San Antonio in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Chicago O'Hare Intl Airport-San Antonio flights, users find the pricing of CheapOair to be most consistent on Cheapflights vs. CheapOair Users can find the same prices on Chicago O'Hare Intl Airport-San Antonio flight deals on Cheapflights vs. CheapOair >95% of the time. Price accuracy is based on data collected from Chicago O'Hare Intl Airport-San Antonio flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago O'Hare Intl Airport-San Antonio flights, Cheapflights users trust CheapOair the most. CheapOair has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago O'Hare Intl Airport-San Antonio flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 October 24, 2025.

The best time to book flights from Chicago O'Hare Intl Airport to San Antonio is 57 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, October is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to San Antonio (average of $77). Flying from Chicago O'Hare Intl Airport to San Antonio in February is currently the most expensive (average of $185). 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 October 29, 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 30% 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 October 26, 2025.

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

How much does it cost to fly round-trip from Chicago O'Hare Intl Airport to San Antonio?

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

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 October 29, 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
4,241 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,241 reviews
Southwest
8.0
Very good
4,241 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,999 reviews
Southwest
8.0
Very good
4,241 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
11,032 reviews
Southwest
8.0
Very good
4,241 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Spirit Airlines
6.3
Okay
8,114 reviews
Southwest
8.0
Very good
4,241 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,124 reviews
Southwest
8.0
Very good
4,241 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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 13 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.

  • How long is the flight from Chicago O'Hare Intl Airport to San Antonio?

    There are many flights that can get you from Chicago O'Hare Intl Airport to San Antonio in 3h 07m. Fly via Delta or United Airlines to get the fastest option. There are 1042 mi between Chicago O'Hare Intl Airport and San Antonio. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 Frontier. Our recent data shows that you can find tickets from as low as $125 on this airline. Additional options worth looking into are Spirit Airlines and Southwest, starting at $172 and $203 round-trip. Frontier is 68% cheaper than the average price of flights available within the next 90 days to this destination.

  • 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 (100%), Republic Airways (91%) or Air Canada (86%) 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 $532, our data indicates the cheapest price to be $148. The most popular route (Chicago O'Hare Intl - San Antonio), is priced around $124.

  • 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, October is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to San Antonio (average of $77). Flying from Chicago O'Hare Intl Airport to San Antonio in February is currently the most expensive (average of $185). 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 San Antonio?

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

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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 October 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$125Average$200FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$172Average$288FlexibilityNo cancel feeOn-time65%
SouthwestCheapest$203Average$584FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$229Average$452FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$229Average$400FlexibilityNo cancel feeOn-time71%

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