$79+ 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 9/14. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — ORD
Sep 16 — Sep 231
Round-trip
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 February or August, booked 70 days in advance, depart on a Thursday or Friday and return on a Thursday
Cheap flight deals from San Antonio to O'Hare Intl
Cheapest
Best
Last-minute
One-way
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 August 17, 2026.
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 August 17, 2026.
This United Airlines deal was found by Cheapflights users on 8/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/155:30 pm -
Nonstop3h 00m
Fri 9/187:50 pm -
Nonstop3h 01m
Deal found 8/13![United Airlines logo]()
$272
This Kiwi.com deal was found by Cheapflights users on 8/14. 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 10/2911:08 am -
1 stop22h 53m
Tue 11/311:06 am -
1 stop23h 06m
Deal found 8/14![Frontier logo]()
$273
This Kiwi.com deal was found by Cheapflights users on 8/12. 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.
Sat 9/128:20 pm -
2 stops37h 00m
Tue 9/156:30 am -
1 stop12h 55m
Deal found 8/12![Frontier logo]()
$274
This Kiwi.com deal was found by Cheapflights users on 8/14. 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 9/109:25 am -
2 stops37h 34m
Mon 9/146:30 am -
1 stop12h 55m
Deal found 8/14![Multiple Airlines logo]()
$276
This Delta deal was found by Cheapflights users on 8/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2211:36 am -
1 stop6h 53m
Mon 10/2611:21 am -
1 stop8h 27m
Deal found 8/16![Delta logo]()
$277
This United Airlines deal was found by Cheapflights users on 8/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/115:30 pm -
Nonstop2h 59m
Mon 9/145:53 pm -
1 stop4h 51m
Deal found 8/14![United Airlines logo]()
$278
This American Airlines deal was found by Cheapflights users on 8/14. 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.
Fri 9/113:02 pm -
Nonstop3h 05m
Fri 9/183:08 pm -
Nonstop3h 01m
Deal found 8/14![American Airlines logo]()
$279
This Frontier deal was found by Cheapflights users on 8/13. 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.
Sat 8/159:32 pm -
1 stop8h 05m
Fri 9/49:10 pm -
1 stop11h 46m
Deal found 8/13![Frontier logo]()
$280
This American Airlines deal was found by Cheapflights users on 8/13. 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.
Thu 10/12:50 pm -
Nonstop3h 05m
Mon 10/53:50 pm -
1 stop6h 10m
Deal found 8/13![American Airlines logo]()
$282
This American Airlines deal was found by Cheapflights users on 8/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/105:00 am -
1 stop5h 08m
Mon 9/149:06 pm -
Nonstop2h 49m
Deal found 8/12![American Airlines logo]()
$283
This CheapOair deal was found by Cheapflights users on 8/13. 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 9/310:24 pm -
1 stop20h 38m
Tue 9/85:29 pm -
1 stop15h 38m
Deal found 8/13![Frontier logo]()
$284
This Super.com deal was found by Cheapflights users on 8/13. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/108:20 pm -
1 stop28h 03m
Sun 9/136:30 am -
1 stop12h 55m
Deal found 8/13![Frontier logo]()
$285
Best flights from San Antonio to O'Hare IntlDiscover carefully curated flight deals from San Antonio to O'Hare Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 17, 2026.
Discover carefully curated flight deals from San Antonio to O'Hare Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 17, 2026.
This Delta deal was found by Cheapflights users on 8/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2211:36 am -
1 stop6h 53m
Mon 10/2611:21 am -
1 stop8h 27m
Deal found 8/16![Delta logo]()
$277
This United Airlines deal was found by Cheapflights users on 8/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/165:58 pm -
1 stop5h 29m
Tue 10/209:05 am -
Nonstop3h 06m
Deal found 8/15![United Airlines logo]()
$278
This Delta deal was found by Cheapflights users on 8/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/75:15 am -
1 stop7h 53m
Mon 9/145:10 pm -
1 stop5h 34m
Deal found 8/14![Delta logo]()
$277
This United Airlines deal was found by Cheapflights users on 8/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/69:48 am -
1 stop5h 02m
Thu 10/89:05 am -
Nonstop3h 06m
Deal found 8/14![United Airlines logo]()
$293
This Alaska Airlines deal was found by Cheapflights users on 8/16. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/25:29 pm -
2 stops19h 40m
Thu 11/52:07 pm -
2 stops26h 12m
Deal found 8/16![Alaska Airlines logo]()
$749
This Delta deal was found by Cheapflights users on 8/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/184:21 pm -
1 stop7h 38m
Mon 9/215:10 pm -
1 stop5h 34m
Deal found 8/12![Delta logo]()
$347
This United Airlines deal was found by Cheapflights users on 8/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/216:30 am -
Nonstop3h 00m
Wed 9/238:45 am -
Nonstop3h 07m
Deal found 8/16![United Airlines logo]()
$347
This Delta deal was found by Cheapflights users on 8/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/116:20 pm -
1 stop5h 32m
Tue 10/135:29 pm -
1 stop5h 38m
Deal found 8/13![Delta logo]()
$365
This United Airlines deal was found by Cheapflights users on 8/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/281:45 pm -
1 stop5h 45m
Mon 8/311:30 pm -
Nonstop3h 01m
Deal found 8/12![United Airlines logo]()
$410
This United Airlines deal was found by Cheapflights users on 8/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/254:12 pm -
1 stop5h 20m
Thu 8/277:50 pm -
Nonstop3h 00m
Deal found 8/14![United Airlines logo]()
$553
Last-minute flights from San Antonio to O'Hare IntlDiscover last-minute flight deals from San Antonio to O'Hare Intl. Data last updated August 17, 2026 and is based on user searches.
Discover last-minute flight deals from San Antonio to O'Hare Intl. Data last updated August 17, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 8/16. 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.
Sat 8/229:51 am -
1 stop13h 17m
Fri 8/289:10 pm -
1 stop11h 46m
Deal found 8/16![Frontier logo]()
$350
This Booking.com deal was found by Cheapflights users on 8/16. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/229:51 am -
1 stop13h 17m
Sun 8/238:11 pm -
1 stop25h 18m
Deal found 8/16![Frontier logo]()
$362
This Frontier deal was found by Cheapflights users on 8/12. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/249:51 am -
1 stop13h 17m
Thu 8/277:44 pm -
1 stop13h 12m
Deal found 8/12![Frontier logo]()
$320
This Booking.com deal was found by Cheapflights users on 8/16. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/248:26 pm -
1 stop17h 10m
Wed 8/262:41 pm -
1 stop28h 50m
Deal found 8/16![Frontier logo]()
$352
This CheapOair deal was found by Cheapflights users on 8/14. 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.
Tue 8/258:26 pm -
1 stop17h 10m
Tue 9/12:41 pm -
1 stop28h 50m
Deal found 8/14![Frontier logo]()
$330
This Trip.com deal was found by Cheapflights users on 8/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/258:26 pm -
1 stop17h 10m
Thu 8/277:44 pm -
1 stop13h 12m
Deal found 8/14![Frontier logo]()
$368
This American Airlines deal was found by Cheapflights users on 8/13. 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.
Tue 8/256:52 pm -
Nonstop3h 13m
Tue 9/110:05 am -
Nonstop2h 48m
Deal found 8/13![American Airlines logo]()
$376
This Trip.com deal was found by Cheapflights users on 8/12. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/268:26 pm -
1 stop17h 10m
Sat 8/292:41 pm -
1 stop28h 50m
Deal found 8/12![Frontier logo]()
$346
This Super.com deal was found by Cheapflights users on 8/14. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/278:26 pm -
1 stop17h 10m
Mon 8/318:11 pm -
1 stop25h 18m
Deal found 8/14![Frontier logo]()
$333
One-way flights from San Antonio to O'Hare IntlSearch for one-way flight options from San Antonio to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated August 17, 2026.
Search for one-way flight options from San Antonio to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated August 17, 2026.
This Frontier deal was found by Cheapflights users on 8/13. 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.
Mon 9/149:50 pm -
1 stop7h 48m
Deal found 8/13![Frontier logo]()
$79
This Super.com deal was found by Cheapflights users on 8/12. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/122:47 pm -
1 stop14h 51m
Deal found 8/12![Frontier logo]()
$84
This Frontier deal was found by Cheapflights users on 8/13. 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.
Tue 9/153:19 pm -
1 stop14h 19m
Deal found 8/13![Frontier logo]()
$85
This Jetabroad deal was found by Cheapflights users on 8/13. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/98:20 pm -
1 stop28h 03m
Deal found 8/13![Frontier logo]()
$87
This Super.com deal was found by Cheapflights users on 8/15. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1610:03 am -
1 stop12h 56m
Deal found 8/15![Frontier logo]()
$94
This CheapOair deal was found by Cheapflights users on 8/14. 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.
Tue 10/138:21 pm -
1 stop28h 03m
Deal found 8/14![Frontier logo]()
$96
This Jetabroad deal was found by Cheapflights users on 8/15. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/158:21 pm -
1 stop28h 03m
Deal found 8/15![Frontier logo]()
$97
Find 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 August 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $272 (United Airlines) |
One-way from | $79 (Frontier) |
Popular in | November |
Cheapest in | February |
Average price | $367 |
Good round-trip deal | $372 or less |
Good one-way deal | $253 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 August 17, 2026.
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
Fly to
Route
Depart
Return
Cheapest round-trip
San AntonioChicago
SAT San Antonio - ORD Chicago O'Hare Intl
SATORD
San Antonio
Thu 10/22
11:36 am-6:29 pm
1 stop6h 53m
Chicago O'Hare Intl
Mon 10/26
11:21 am-7:48 pm
1 stop8h 27m
$277
San AntonioChicago
SAT San Antonio - ORD Chicago O'Hare Intl
SATORD
San Antonio
Mon 9/7
5:15 am-1:08 pm
1 stop7h 53m
Chicago O'Hare Intl
Mon 9/14
5:10 pm-10:44 pm
1 stop5h 34m
$277
San AntonioChicago
SAT San Antonio - ORD Chicago O'Hare Intl
SATORD
San Antonio
Fri 10/16
5:58 pm-11:27 pm
1 stop5h 29m
Chicago O'Hare Intl
Tue 10/20
9:05 am-12:11 pm
Nonstop3h 06m
$278
San AntonioChicago
SAT San Antonio - ORD Chicago O'Hare Intl
SATORD
San Antonio
Tue 10/6
9:48 am-2:50 pm
1 stop5h 02m
Chicago O'Hare Intl
Thu 10/8
9:05 am-12:11 pm
Nonstop3h 06m
$293
San AntonioChicago
SAT San Antonio - ORD Chicago O'Hare Intl
SATORD
San Antonio
Fri 9/18
4:21 pm-11:59 pm
1 stop7h 38m
Chicago O'Hare Intl
Mon 9/21
5:10 pm-10:44 pm
1 stop5h 34m
$347
Quickest round-trip
San AntonioChicago
SAT San Antonio - ORD Chicago O'Hare Intl
SATORD
San Antonio
Mon 9/21
6:30 am-9:30 am
Nonstop3h 00m
Chicago O'Hare Intl
Wed 9/23
8:45 am-11:52 am
Nonstop3h 07m
$347
San AntonioChicago
SAT San Antonio - ORD Chicago O'Hare Intl
SATORD
San Antonio
Sun 10/11
6:20 pm-11:52 pm
1 stop5h 32m
Chicago O'Hare Intl
Tue 10/13
5:29 pm-11:07 pm
1 stop5h 38m
$365
San AntonioChicago
SAT San Antonio - ORD Chicago O'Hare Intl
SATORD
San Antonio
Fri 8/28
1:45 pm-7:30 pm
1 stop5h 45m
Chicago O'Hare Intl
Mon 8/31
1:30 pm-4:31 pm
Nonstop3h 01m
$410
San AntonioChicago
SAT San Antonio - ORD Chicago O'Hare Intl
SATORD
San Antonio
Tue 8/25
4:12 pm-9:32 pm
1 stop5h 20m
Chicago O'Hare Intl
Thu 8/27
7:50 pm-10:50 pm
Nonstop3h 00m
$553
San AntonioChicago
SAT San Antonio - ORD Chicago O'Hare Intl
SATORD
San Antonio
Mon 11/2
5:29 pm-1:09 pm
2 stops19h 40m
Chicago O'Hare Intl
Thu 11/5
2:07 pm-4:19 pm
2 stops26h 12m
$749
Showing 1-10 of 19 resultsSorted by cheapest first
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 August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy- | 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Antonio-Chicago O'Hare Intl Airport flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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.
SAT-ORD
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
How far ahead should I book a flight from San Antonio to Chicago O'Hare Intl Airport?
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 69 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, February is the cheapest month in which you can book a flight from San Antonio to Chicago O'Hare Intl Airport (average of $367). Flying from San Antonio to Chicago O'Hare Intl Airport in November is currently the most expensive (average of $467). 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 August 17, 2026.
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 morning, which can drop the price by up to 42% versus a flight at noon.
The best insider tips for San Antonio to Chicago O'Hare Intl Airport flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your San Antonio to Chicago O'Hare Intl Airport trip
Our travel experts
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 August 17, 2026.
Get a feel of what it's like to fly with United Airlines,American Airlines, andFrontier 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.
Entertainment
7.1
Boarding
7.7
Comfort
7.3
Crew
8.1
Food
6.7
Overall
7.4
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Entertainment
7.1
Boarding
7.7
Comfort
7.3
Crew
8.1
Food
6.7
Overall
7.4
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Entertainment
7.1
Boarding
7.7
Comfort
7.3
Crew
8.1
Food
6.7
Overall
7.4
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Entertainment
7.1
Boarding
7.7
Comfort
7.3
Crew
8.1
Food
6.7
Overall
7.4
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
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.
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Top 3 airlines flying from San Antonio to O'Hare Intl
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| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$96 | Average$235 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$257 | Average$402 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$291 | Average$445 | FlexibilityNo cancel fee | On-time69% |