$128+ Cheap flights from San Antonio (SAT) to O'Hare Intl (ORD)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/25. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — ORD
Oct 7 — Oct 141
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 September or February, 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 September 7, 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 September 7, 2026.
This CheapOair deal was found by Cheapflights users on 9/2. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2412:39 pm -
1 stop16h 59m
Sun 9/278:55 pm -
1 stop14h 49m
Deal found 9/2![Frontier logo]()
$268
This CheapOair deal was found by Cheapflights users on 9/2. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/189:50 pm -
1 stop7h 48m
Mon 9/288:55 pm -
1 stop17h 25m
Deal found 9/2![Frontier logo]()
$271
This Super.com deal was found by Cheapflights users on 9/2. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/178:20 pm -
1 stop28h 03m
Sun 9/203:50 pm -
1 stop17h 20m
Deal found 9/2![Frontier logo]()
$272
This CheapOair deal was found by Cheapflights users on 9/3. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/262:47 pm -
1 stop14h 51m
Mon 9/288:55 pm -
1 stop17h 25m
Deal found 9/3![Frontier logo]()
$276
This Frontier deal was found by Cheapflights users on 9/2. 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.
Fri 10/2310:03 am -
1 stop8h 59m
Mon 10/266:30 am -
1 stop12h 56m
Deal found 9/2![Frontier logo]()
$277
This Frontier deal was found by Cheapflights users on 9/2. 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.
Mon 9/289:50 pm -
1 stop7h 48m
Fri 10/26:30 am -
1 stop12h 55m
Deal found 9/2![Frontier logo]()
$278
This CheapOair deal was found by Cheapflights users on 9/3. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/108:21 pm -
1 stop28h 03m
Sat 10/176:30 am -
1 stop12h 56m
Deal found 9/3![Frontier logo]()
$279
This Frontier deal was found by Cheapflights users on 9/5. 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 9/189:50 pm -
1 stop7h 48m
Tue 9/226:30 am -
1 stop12h 55m
Deal found 9/5![Frontier logo]()
$280
This Trip.com deal was found by Cheapflights users on 9/7. 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.
Sun 9/208:20 pm -
1 stop28h 03m
Sun 9/273:50 pm -
1 stop17h 20m
Deal found 9/7![Frontier logo]()
$281
This Super.com deal was found by Cheapflights users on 9/6. 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.
Fri 9/189:50 pm -
1 stop7h 48m
Mon 9/218:55 pm -
1 stop17h 25m
Deal found 9/6![Frontier logo]()
$286
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 September 7, 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 September 7, 2026.
This United Airlines deal was found by Cheapflights users on 9/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/256:35 am -
Nonstop3h 00m
Tue 9/2910:32 am -
1 stop5h 21m
Deal found 9/3![United Airlines logo]()
$390
This Delta deal was found by Cheapflights users on 9/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/176:45 am -
1 stop6h 35m
Sun 2/217:10 am -
1 stop6h 12m
Deal found 9/2![Delta logo]()
$439
This Alaska Airlines deal was found by Cheapflights users on 9/3. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/275:00 pm -
2 stops20h 13m
Sat 1/302:13 pm -
2 stops25h 49m
Deal found 9/3![Alaska Airlines logo]()
$729
This United Airlines deal was found by Cheapflights users on 9/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/244:13 pm -
1 stop5h 22m
Sat 1/25:58 pm -
1 stop5h 01m
Deal found 9/2![United Airlines logo]()
$401
This United Airlines deal was found by Cheapflights users on 9/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/167:25 pm -
1 stop4h 58m
Mon 10/197:50 pm -
Nonstop3h 00m
Deal found 9/3![United Airlines logo]()
$406
This United Airlines deal was found by Cheapflights users on 9/6. 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.
Thu 11/2611:45 am -
1 stop4h 44m
Mon 11/305:30 pm -
1 stop5h 21m
Deal found 9/6![United Airlines logo]()
$437
This United Airlines deal was found by Cheapflights users on 9/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/136:34 am -
Nonstop2h 58m
Sun 11/156:55 am -
1 stop6h 21m
Deal found 9/3![United Airlines logo]()
$444
This Delta deal was found by Cheapflights users on 9/6. 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.
Wed 12/304:45 pm -
1 stop7h 14m
Sun 1/38:05 am -
1 stop7h 34m
Deal found 9/6![Delta logo]()
$648
This Delta deal was found by Cheapflights users on 9/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1811:36 am -
2 stops12h 23m
Mon 9/283:55 pm -
1 stop5h 27m
Deal found 9/3![Delta logo]()
$722
This United Airlines deal was found by Cheapflights users on 9/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/171:00 pm -
Nonstop3h 00m
Tue 9/2212:59 pm -
Nonstop3h 01m
Deal found 9/3![United Airlines logo]()
$559
This United Airlines deal was found by Cheapflights users on 9/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/77:35 am -
1 stop4h 50m
Fri 10/95:30 am -
1 stop5h 13m
Deal found 9/2![United Airlines logo]()
$571
Last-minute flights from San Antonio to O'Hare IntlDiscover last-minute flight deals from San Antonio to O'Hare Intl. Data last updated September 7, 2026 and is based on user searches.
Discover last-minute flight deals from San Antonio to O'Hare Intl. Data last updated September 7, 2026 and is based on user searches.
This Super.com deal was found by Cheapflights users on 9/3. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/128:20 pm -
1 stop28h 03m
Tue 9/223:50 pm -
1 stop17h 17m
Deal found 9/3![Frontier logo]()
$292
This CheapOair deal was found by Cheapflights users on 9/5. 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.
Sat 9/122:47 pm -
1 stop14h 51m
Tue 9/153:50 pm -
1 stop17h 17m
Deal found 9/5![Frontier logo]()
$310
This Frontier deal was found by Cheapflights users on 9/2. 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.
Mon 9/149:50 pm -
1 stop7h 48m
Wed 9/166:30 am -
1 stop12h 55m
Deal found 9/2![Frontier logo]()
$280
This Super.com deal was found by Cheapflights users on 9/4. 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.
Mon 9/148:20 pm -
1 stop28h 03m
Thu 9/1711:15 am -
1 stop21h 55m
Deal found 9/4![Frontier logo]()
$312
This Trip.com deal was found by Cheapflights users on 9/2. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/153:19 pm -
1 stop14h 19m
Wed 9/161:21 pm -
1 stop22h 23m
Deal found 9/2![Frontier logo]()
$296
This CheapOair deal was found by Cheapflights users on 9/3. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/158:20 pm -
1 stop28h 03m
Thu 9/173:50 pm -
1 stop17h 20m
Deal found 9/3![Frontier logo]()
$299
This Frontier deal was found by Cheapflights users on 9/6. 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
Fri 9/186:30 am -
1 stop12h 55m
Deal found 9/6![Frontier logo]()
$300
This Expedia deal was found by Cheapflights users on 9/6. 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 9/1610:03 am -
1 stop12h 56m
Wed 9/236:30 am -
1 stop12h 55m
Deal found 9/6![Frontier logo]()
$290
This Super.com deal was found by Cheapflights users on 9/2. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/178:20 pm -
1 stop28h 03m
Sun 9/203:50 pm -
1 stop17h 20m
Deal found 9/2![Frontier logo]()
$272
This CheapOair deal was found by Cheapflights users on 9/3. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/178:20 pm -
1 stop28h 03m
Tue 9/226:30 am -
1 stop12h 55m
Deal found 9/3![Frontier logo]()
$278
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 September 7, 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 September 7, 2026.
This Super.com deal was found by Cheapflights users on 9/6. 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.
Fri 9/259:50 pm -
1 stop7h 48m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Frontier logo]()
$128
This Frontier deal was found by Cheapflights users on 9/3. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/512:00 pm -
1 stop7h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Frontier logo]()
$129
This Frontier deal was found by Cheapflights users on 9/2. 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.
Fri 9/189:50 pm -
1 stop7h 48m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Frontier logo]()
$130
This Super.com deal was found by Cheapflights users on 9/5. 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 10/108:21 pm -
1 stop28h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Frontier logo]()
$133
This Super.com deal was found by Cheapflights users on 9/2. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/268:21 pm -
1 stop28h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Frontier logo]()
$134
This Frontier deal was found by Cheapflights users on 9/1. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/29:21 pm -
1 stop14h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Frontier logo]()
$135
This Frontier deal was found by Cheapflights users on 9/3. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2310:03 am -
1 stop12h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Frontier logo]()
$136
This Trip.com deal was found by Cheapflights users on 9/4. 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 11/188:20 pm -
1 stop28h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Frontier logo]()
$138
This Jetabroad deal was found by Cheapflights users on 9/3. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/73:19 pm -
1 stop13h 58m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Frontier logo]()
$140
This Super.com deal was found by Cheapflights users on 9/4. 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.
Fri 9/119:50 pm -
1 stop7h 48m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Frontier logo]()
$148
This Frontier deal was found by Cheapflights users on 9/1. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/312:00 pm -
1 stop7h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Frontier logo]()
$149
This Booking.com deal was found by Cheapflights users on 9/4. 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.
Fri 10/29:50 pm -
1 stop7h 48m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Frontier logo]()
$150
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 September 7, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $268 (CheapOair) |
One-way from | $128 (Super.com) |
Popular in | November |
Cheapest in | September |
Average price | $359 |
Good round-trip deal | $376 or less |
Good one-way deal | $255 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 7,457,451 searches. Data last updated September 7, 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
Wed 10/21
2:00 pm-5:00 pm
Nonstop3h 00m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$183
Quickest round-trip
San AntonioChicago
SAT San Antonio - ORD Chicago O'Hare Intl
SATORD
San Antonio
Mon 10/26
6:37 am-9:36 am
Nonstop2h 59m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$183
San AntonioChicago
SAT San Antonio - ORD Chicago O'Hare Intl
SATORD
San Antonio
Sat 2/20
10:45 am-4:37 pm
1 stop5h 52m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$193
San AntonioChicago
SAT San Antonio - ORD Chicago O'Hare Intl
SATORD
San Antonio
Fri 10/9
7:25 pm-12:23 am
1 stop4h 58m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$208
San AntonioChicago
SAT San Antonio - ORD Chicago O'Hare Intl
SATORD
San Antonio
Mon 3/1
6:15 pm-11:50 pm
1 stop5h 35m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$219
San AntonioChicago
SAT San Antonio - ORD Chicago O'Hare Intl
SATORD
San Antonio
Sat 3/6
4:25 pm-10:20 pm
1 stop5h 55m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$219
San AntonioChicago
SAT San Antonio - ORD Chicago O'Hare Intl
SATORD
San Antonio
Thu 3/4
5:30 am-1:20 pm
1 stop7h 50m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$219
San AntonioChicago
SAT San Antonio - ORD Chicago O'Hare Intl
SATORD
San Antonio
Tue 3/2
6:30 am-11:42 am
1 stop5h 12m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$219
San AntonioChicago
SAT San Antonio - ORD Chicago O'Hare Intl
SATORD
San Antonio
Wed 3/3
2:00 pm-9:37 pm
1 stop7h 37m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$219
San AntonioChicago
SAT San Antonio - ORD Chicago O'Hare Intl
SATORD
San Antonio
Mon 3/1
1:25 pm-4:24 pm
Nonstop2h 59m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$228
Showing 1-10 of 23 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 September.
| 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
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, September is the cheapest month in which you can book a flight from San Antonio to Chicago O'Hare Intl Airport (average of $359). 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 September 7, 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 43% 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 September 7, 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.
Crew
8.1
Food
6.6
Overall
7.4
Boarding
7.7
Entertainment
7.1
Comfort
7.3
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Crew
8.1
Food
6.6
Overall
7.4
Boarding
7.7
Entertainment
7.1
Comfort
7.3
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Crew
8.1
Food
6.6
Overall
7.4
Boarding
7.7
Entertainment
7.1
Comfort
7.3
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Crew
8.1
Food
6.6
Overall
7.4
Boarding
7.7
Entertainment
7.1
Comfort
7.3
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.
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 locationsBenton Harbor
Rosemont
Naperville
Glenview
Lake Geneva
Schaumburg
Oakbrook Terrace
Delavan
Oak Brook
Libertyville
Des Plaines
Orland Park
Hoffman Estates
Aurora
Beloit
Rockford
South Holland
Elgin
Racine
Skokie
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Top 3 airlines flying from San Antonio to O'Hare Intl
Discover the top 3 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 7,457,451 searches. Data last updated September 7, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$131 | Average$259 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$237 | Average$400 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$287 | Average$440 | FlexibilityNo cancel fee | On-time69% |