For a quick check-in at SAT, use the central ticketing area before heading to Terminals A or B.
$53+ Cheap flights from San Antonio (SAT) to O'Hare Intl (ORD)
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 12/31. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — ORD
Dec 13 — Dec 201
1 adult, Economy
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Find cheap flights from San Antonio to O'Hare Intl with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from San Antonio to Chicago O'Hare Intl are usually found in September or August, booked 7 days in advance, depart on a Thursday or Friday and return on a Wednesday
Find flight deals from San Antonio to O'Hare Intl
Cheapest flights from San Antonio to O'Hare IntlExplore the most affordable flight options available from San Antonio to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 13, 2025.
Explore the most affordable flight options available from San Antonio to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 13, 2025.
This Kiwi.com deal was found by Cheapflights users on 11/12. 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 12/113:06 pmSAT - ORD
1 stop9h 06mMultiple Airlines
Mon 12/159:14 pmORD - SAT
2 stops45h 45mMultiple Airlines
Deal found 11/12![Multiple Airlines logo]()
$182
This Kiwi.com deal was found by Cheapflights users on 11/10. 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 12/137:00 amSAT - ORD
1 stop23h 05mSpirit Airlines
Mon 12/159:06 pmORD - SAT
1 stop21h 53mSpirit Airlines
Deal found 11/10![Spirit Airlines logo]()
$183
This Kiwi.com deal was found by Cheapflights users on 11/12. 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 12/312:09 pmSAT - ORD
1 stop10h 03mFrontier
Fri 1/212:26 pmORD - SAT
2 stops24h 10mFrontier
Deal found 11/12![Frontier logo]()
$185
This Expedia deal was found by Cheapflights users on 11/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/247:11 pmSAT - ORD
1 stop15h 07mMultiple Airlines
Sun 1/118:22 pmORD - SAT
1 stop13h 08mMultiple Airlines
Deal found 11/11![Multiple Airlines logo]()
$186
This Kiwi.com deal was found by Cheapflights users on 11/11. 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.
Fri 12/125:40 amSAT - ORD
1 stop18h 33mMultiple Airlines
Mon 12/153:26 pmORD - SAT
1 stop8h 00mMultiple Airlines
Deal found 11/11![Multiple Airlines logo]()
$188
This Kiwi.com deal was found by Cheapflights users on 11/11. 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.
Fri 11/217:00 amSAT - ORD
1 stop17h 10mFrontier
Sun 11/237:00 amORD - SAT
1 stop17h 20mFrontier
Deal found 11/11![Frontier logo]()
$190
This Kiwi.com deal was found by Cheapflights users on 11/11. 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 12/47:56 pmSAT - ORD
2 stops17h 20mMultiple Airlines
Sun 12/79:06 pmORD - SAT
1 stop15h 54mMultiple Airlines
Deal found 11/11![Multiple Airlines logo]()
$192
This Kiwi.com deal was found by Cheapflights users on 11/11. 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 12/37:37 pmSAT - ORD
1 stop18h 20mMultiple Airlines
Sat 12/66:11 amORD - SAT
2 stops25h 44mMultiple Airlines
Deal found 11/11![Multiple Airlines logo]()
$193
This Kiwi.com deal was found by Cheapflights users on 11/11. 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 12/113:06 pmSAT - ORD
1 stop9h 06mFrontier
Fri 12/197:00 amORD - SAT
1 stop17h 17mFrontier
Deal found 11/11![Frontier logo]()
$194
This Kiwi.com deal was found by Cheapflights users on 11/11. 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 11/2411:05 amSAT - ORD
1 stop13h 05mFrontier
Wed 11/266:00 amORD - SAT
1 stop10h 08mFrontier
Deal found 11/11![Frontier logo]()
$195
This Cheapflightsfares deal was found by Cheapflights users on 11/12. 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.
Thu 12/113:10 pmSAT - ORD
1 stop6h 38mSpirit Airlines
Mon 12/153:26 pmORD - SAT
1 stop8h 00mSpirit Airlines
Deal found 11/12![Spirit Airlines logo]()
$196
This CheapOair deal was found by Cheapflights users on 11/11. 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 12/43:10 pmSAT - ORD
1 stop6h 38mSpirit Airlines
Mon 12/153:26 pmORD - SAT
1 stop8h 00mSpirit Airlines
Deal found 11/11![Spirit Airlines logo]()
$197
Cheap flight deals from San Antonio to O'Hare Intl
Discover tips and strategies to find the most affordable flight options for your journey from San Antonio (SAT) to O'Hare Intl (ORD). 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 November 13, 2025.
Most accurate provider | CheapOair 3 stars |
|---|---|
Most trusted provider | CheapOair 3 stars |
Round-trip from | $182 (Kiwi.com) |
One-way from | $53 (Trip.com) |
Popular in | November |
Cheapest in | September |
Average price | $492 |
Good round-trip deal | $363 or less |
Good one-way deal | $245 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from San Antonio to O'Hare Intl 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 November 13, 2025.
Use the filters below to find and compare flights from San Antonio to Chicago O'Hare Intl Airport that are best for you.
Fly from
San Antonio
Fly to
O'Hare Intl
Route
Depart
Return
Price
San AntonioChicago
SAT - ORD
SATORD
San Antonio
Thu 12/11
3:10 pm-9:48 pm
1 stop6h 38m
Chicago O'Hare Intl
Mon 12/15
3:26 pm-11:26 pm
1 stop8h 00m
$196
San AntonioChicago
SAT - ORD
SATORD
San Antonio
Mon 12/1
7:50 pm-6:25 am
2 stops34h 35m
Chicago O'Hare Intl
Fri 12/5
9:06 pm-6:59 pm
1 stop21h 53m
$231
San AntonioChicago
SAT - ORD
SATORD
San Antonio
Tue 12/2
7:37 pm-9:17 am
1 stop13h 40m
Chicago O'Hare Intl
Fri 12/5
7:41 pm-6:59 pm
3 stops23h 18m
$235
San AntonioChicago
SAT - ORD
SATORD
San Antonio
Thu 12/11
1:55 pm-12:09 am
1 stop10h 14m
Chicago O'Hare Intl
Sun 12/14
7:41 pm-11:26 pm
3 stops27h 45m
$271
San AntonioChicago
SAT - ORD
SATORD
San Antonio
Sat 11/22
12:26 pm-7:43 am
2 stops19h 17m
Chicago O'Hare Intl
Tue 11/25
9:22 pm-6:32 pm
2 stops21h 10m
$312
San AntonioChicago
SAT - ORD
SATORD
San Antonio
Tue 12/9
2:12 pm-4:58 pm
Nonstop2h 46m
Chicago O'Hare Intl
Tue 12/16
7:52 pm-10:59 pm
Nonstop3h 07m
$317
San AntonioChicago
SAT - ORD
SATORD
San Antonio
Mon 12/29
6:40 am-9:31 am
Nonstop2h 51m
Chicago O'Hare Intl
Thu 1/1
9:00 am-12:14 pm
Nonstop3h 14m
$332
San AntonioChicago
SAT - ORD
SATORD
San Antonio
Sat 12/13
11:41 am-4:48 pm
1 stop5h 07m
Chicago O'Hare Intl
Wed 12/17
5:30 am-12:11 pm
1 stop6h 41m
$337
San AntonioChicago
SAT - ORD
SATORD
San Antonio
Tue 12/9
5:00 pm-10:43 pm
1 stop5h 43m
Chicago O'Hare Intl
Tue 12/16
3:50 pm-9:19 pm
1 stop5h 29m
$337
San AntonioChicago
SAT - ORD
SATORD
San Antonio
Sat 12/13
6:30 am-12:06 pm
1 stop5h 36m
Chicago O'Hare Intl
Tue 12/16
6:10 pm-12:34 am
1 stop6h 24m
$337
Showing 1-10 of 23 results
Compare providers for flights from San Antonio to O'Hare Intl
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 San Antonio to O'Hare Intl in November.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on San Antonio-Chicago O'Hare Intl Airport flights, users find the pricing of CheapOair to be most consistent on Cheapflights vs. CheapOair Users can find the same prices on San Antonio-Chicago O'Hare Intl Airport flight deals on Cheapflights vs. CheapOair >95% of the time. Price accuracy is based on data collected from San Antonio-Chicago O'Hare Intl Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on San Antonio-Chicago O'Hare Intl Airport 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 San Antonio-Chicago O'Hare Intl Airport 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 San Antonio to O'Hare Intl
Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from San Antonio 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 San Antonio to Chicago O'Hare Intl Airport
Prices
Airlines
More
How far ahead should I book a flight from San Antonio to Chicago O'Hare Intl Airport?
Use this chart to determine the optimal time to book a round-trip flight from San Antonio to O'Hare Intl. Price data was last updated on November 7, 2025.
The price you pay for your flight from San Antonio to Chicago O'Hare Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 7 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from San Antonio to Chicago O'Hare Intl Airport?
Currently, March is the cheapest month in which you can book a flight from San Antonio to Chicago O'Hare Intl Airport (average of $58). Flying from San Antonio to Chicago O'Hare Intl Airport in January is currently the most expensive (average of $180). 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 SAT to ORD?
Find hourly flight availability from San Antonio to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 13, 2025.
When flying from San Antonio to Chicago O'Hare Intl Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 74% versus a flight at noon.
What’s the top layover airport for flights from San Antonio to Chicago O'Hare Intl Airport?
Share of 1-stop round-trip flights from San Antonio to Chicago O'Hare Intl Airport chosen by Cheapflights users in the past 12 months, using the same layover each way.
Atlanta (ATL) – chosen by Cheapflights users on 50% of 1-stop itineraries from San Antonio to Chicago O'Hare Intl Airport on Cheapflights.
What’s the fastest layover option from San Antonio to Chicago O'Hare Intl Airport?
Shortest average travel time for 1-stop one-way flights from San Antonio to Chicago O'Hare Intl Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Denver (DEN) have the shortest average one-way travel time for 1-stop routes: 10h 05m.
What’s the fastest layover option from San Antonio to Chicago O'Hare Intl Airport?
Shortest average travel time for 1-stop one-way flights from San Antonio to Chicago O'Hare Intl Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Denver (DEN) have the shortest average one-way travel time for 1-stop routes: 10h 05m.
Which airport typically offers the quickest layover for flights from San Antonio to Chicago O'Hare Intl Airport?
Average layover duration for 1-stop one-way flights from San Antonio to Chicago O'Hare Intl Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Denver (DEN) offer the fastest connection on this route, with an average layover time of 3h 12m.
The best insider tips for San Antonio to Chicago O'Hare Intl Airport 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 San Antonio to Chicago O'Hare Intl Airport trip
Reviews of airlines servicing O'Hare Intl
Get insights into the airlines that provide service to O'Hare Intl. 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 O'Hare Intl. Reviews last updated November 13, 2025.
Get a feel of what it's like to fly with United Airlines, American Airlines, and Spirit Airlines from San Antonio to Chicago O'Hare Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.3
Overall
7.4
Crew
8.1
Boarding
7.7
Food
6.6
Entertainment
7.1
Reviews
1 / 20
2.0
MediocreSebrena,Oct 2025
IAH - RSW
Comfort
7.3
Overall
7.4
Crew
8.1
Boarding
7.7
Food
6.6
Entertainment
7.1
Reviews
1 / 20
2.0
MediocreSebrena,Oct 2025
IAH - RSW
Comfort
7.3
Overall
7.4
Crew
8.1
Boarding
7.7
Food
6.6
Entertainment
7.1
Reviews
1 / 20
2.0
MediocreSebrena,Oct 2025
IAH - RSW
Comfort
7.3
Overall
7.4
Crew
8.1
Boarding
7.7
Food
6.6
Entertainment
7.1
Reviews
1 / 20
2.0
MediocreSebrena,Oct 2025
IAH - RSW
Comfort
7.3
Overall
7.4
Crew
8.1
Boarding
7.7
Food
6.6
Entertainment
7.1
Reviews
1 / 20
2.0
MediocreSebrena,Oct 2025
IAH - RSW
Related info for your journey
Find useful and relevant information for your journey from San Antonio to O'Hare Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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 locationsSchaumburg
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Alternative routes for San Antonio to O'Hare Intl
See prices for flight routes from nearby airports that may be better suited for you.
Top 4 airlines flying from San Antonio to O'Hare Intl
Discover the top 4 airlines that operate flights from San Antonio to O'Hare Intl. 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 November 13, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$97 | Average$185 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$208 | Average$302 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$235 | Average$392 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$287 | Average$472 | FlexibilityNo cancel fee | On-time69% |