For a quick check-in at SAT, use the central ticketing area before heading to Terminals A or B.
$82+ 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 7/13. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — ORD
Jun 17 — Jun 241
1 adult, Economy
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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
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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 69 days in advance, depart on a Thursday or Friday and return on a Tuesday
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 June 12, 2025.
Round-trip from | $235 (CheapOair) |
|---|---|
One-way from | $82 (Mytrip) |
Popular in | December |
Cheapest in | September |
Average price | $373 |
Good round-trip deal | $365 or less |
Good one-way deal | $219 or less |
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 June 12, 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 June 12, 2025.
This CheapOair deal was found by Cheapflights users on 6/11. 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.
Fri 6/2710:57 pmSAT - ORD
1 stop7h 15mSpirit Airlines
Sun 6/297:27 amORD - SAT
1 stop6h 35mSpirit Airlines
Deal found 6/11![Spirit Airlines logo]()
$235
This Southwest deal was found by Cheapflights users on 6/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/72:20 pmSAT - ORD
1 stop8h 00mSouthwest
Mon 8/115:45 pmORD - SAT
1 stop5h 10mSouthwest
Deal found 6/12![Southwest logo]()
$237
This United Airlines deal was found by Cheapflights users on 6/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/276:30 amSAT - ORD
Nonstop2h 59mUnited Airlines
Mon 9/17:55 pmORD - SAT
Nonstop3h 05mUnited Airlines
Deal found 6/10![United Airlines logo]()
$247
This FlightHub deal was found by Cheapflights users on 6/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/246:59 pmSAT - ORD
1 stop29h 00mMultiple Airlines
Tue 7/110:43 amORD - SAT
1 stop24h 54mMultiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$253
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/65:00 amSAT - ORD
1 stop8h 37mAmerican Airlines
Sat 8/99:55 amORD - SAT
Nonstop2h 47mAmerican Airlines
Deal found 6/11![American Airlines logo]()
$260
This Frontier deal was found by Cheapflights users on 6/12. 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.
Fri 8/295:35 pmSAT - ORD
1 stop6h 19mFrontier
Sun 8/3111:44 amORD - SAT
1 stop7h 49mFrontier
Deal found 6/12![Frontier logo]()
$298
This eDestinos deal was found by Cheapflights users on 6/11. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/46:35 pmSAT - ORD
1 stop22h 34mSun Country Air
Sun 7/66:45 amORD - SAT
1 stop27h 02mSun Country Air
Deal found 6/11![Sun Country Air logo]()
$329
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/265:20 amSAT - ORD
1 stop4h 56mDelta
Thu 7/315:35 amORD - SAT
1 stop5h 44mDelta
Deal found 6/10![Delta logo]()
$367
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 June 12, 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
Fri 6/27
10:57 pm-6:12 am
1 stop7h 15m
Chicago O'Hare Intl
Sun 6/29
7:27 am-2:02 pm
1 stop6h 35m
$235
San AntonioChicago
SAT - ORD
SATORD
San Antonio
Thu 8/7
2:20 pm-10:20 pm
1 stop8h 00m
Chicago O'Hare Intl
Mon 8/11
5:45 pm-10:55 pm
1 stop5h 10m
$237
San AntonioChicago
SAT - ORD
SATORD
San Antonio
Wed 8/27
6:30 am-9:29 am
Nonstop2h 59m
Chicago O'Hare Intl
Mon 9/1
7:55 pm-11:00 pm
Nonstop3h 05m
$247
San AntonioChicago
SAT - ORD
SATORD
San Antonio
Tue 6/24
6:59 pm-11:59 pm
1 stop29h 00m
Chicago O'Hare Intl
Tue 7/1
10:43 am-11:37 am
1 stop24h 54m
$253
San AntonioChicago
SAT - ORD
SATORD
San Antonio
Wed 8/6
5:00 am-1:37 pm
1 stop8h 37m
Chicago O'Hare Intl
Sat 8/9
9:55 am-12:42 pm
Nonstop2h 47m
$260
San AntonioChicago
SAT - ORD
SATORD
San Antonio
Fri 8/29
5:35 pm-11:54 pm
1 stop6h 19m
Chicago O'Hare Intl
Sun 8/31
11:44 am-7:33 pm
1 stop7h 49m
$298
San AntonioChicago
SAT - ORD
SATORD
San Antonio
Fri 7/4
6:35 pm-5:09 pm
1 stop22h 34m
Chicago O'Hare Intl
Sun 7/6
6:45 am-9:47 am
1 stop27h 02m
$329
San AntonioChicago
SAT - ORD
SATORD
San Antonio
Sat 7/26
5:20 am-10:16 am
1 stop4h 56m
Chicago O'Hare Intl
Thu 7/31
5:35 am-11:19 am
1 stop5h 44m
$367
San AntonioChicago
SAT - ORD
SATORD
San Antonio
Sun 7/13
5:38 pm-9:30 pm
1 stop27h 52m
$82
San AntonioChicago
SAT - ORD
SATORD
San Antonio
Tue 8/26
6:05 am-9:00 am
Nonstop2h 55m
$109
Showing 1-10 of 15 results
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
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
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 June 9, 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 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, August is the cheapest month in which you can book a flight from San Antonio to Chicago O'Hare Intl Airport (average of $245). Flying from San Antonio to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). 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 June 12, 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 73% versus a flight at noon.
Weekly flight availability from San Antonio to Chicago O'Hare Intl Airport
Explore weekly flight availability from San Antonio to O'Hare Intl. 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 June 12, 2025.
The most flights from SAT to ORD are scheduled on a Thursday (30 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (14 on average).
Rainfall in O'Hare Intl by month
Plan your trip to O'Hare Intl by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Chicago O'Hare Intl Airport ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Chicago O'Hare Intl Airport when rainfall is around 1.7 in.
Temperature in O'Hare Intl by month
Plan your trip to O'Hare Intl by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Chicago O'Hare Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).
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 June 12, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest and Delta from San Antonio to Chicago by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.5
Overall
8.0
Boarding
8.1
Comfort
7.8
Food
7.1
Entertainment
7.1
Reviews
1 / 20
10.0
ExcellentJames,Apr 2025
LAX - SFO
Crew
8.5
Overall
8.0
Boarding
8.1
Comfort
7.8
Food
7.1
Entertainment
7.1
Reviews
1 / 20
10.0
ExcellentJames,Apr 2025
LAX - SFO
Crew
8.5
Overall
8.0
Boarding
8.1
Comfort
7.8
Food
7.1
Entertainment
7.1
Reviews
1 / 20
10.0
ExcellentJames,Apr 2025
LAX - SFO
Crew
8.5
Overall
8.0
Boarding
8.1
Comfort
7.8
Food
7.1
Entertainment
7.1
Reviews
1 / 20
10.0
ExcellentJames,Apr 2025
LAX - SFO
Crew
8.5
Overall
8.0
Boarding
8.1
Comfort
7.8
Food
7.1
Entertainment
7.1
Reviews
1 / 20
10.0
ExcellentJames,Apr 2025
LAX - SFO
Crew
8.5
Overall
8.0
Boarding
8.1
Comfort
7.8
Food
7.1
Entertainment
7.1
Reviews
1 / 20
10.0
ExcellentJames,Apr 2025
LAX - SFO
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 San Antonio?
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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 June 12, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$111 | Average$260 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$112 | Average$151 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$219 | Average$383 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$285 | Average$463 | FlexibilityNo cancel fee | On-time69% |