$141+ 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 6/16. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — ORD
May 22 — May 291
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
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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 8 days in advance, depart on a Thursday or Friday and return on a Tuesday
Cheap flight deals from San Antonio to O'Hare Intl
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Best
Last-minute
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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 April 22, 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 April 22, 2026.
This Gotogate deal was found by Cheapflights users on 4/18. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/18:24 pm
SAT
- ORD
1 stop9h 44m
Frontier
Wed 5/69:37 pm
ORD
- SAT
1 stop21h 22m
Frontier
Deal found 4/18![Frontier logo]()
$280
This CheapOair deal was found by Cheapflights users on 4/19. 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 7/247:51 pm
SAT
- ORD
1 stop25h 02m
Frontier
Sun 7/269:48 pm
ORD
- SAT
1 stop21h 08m
Frontier
Deal found 4/19![Frontier logo]()
$281
This Kiwi.com deal was found by Cheapflights users on 4/20. 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 5/157:54 pm
SAT
- ORD
1 stop24h 38m
Frontier
Fri 5/296:55 am
ORD
- SAT
2 stops36h 04m
Frontier
Deal found 4/20![Frontier logo]()
$282
This Expedia deal was found by Cheapflights users on 4/20. 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 7/18:56 pm
SAT
- ORD
1 stop8h 36m
Frontier
Sat 7/47:12 am
ORD
- SAT
1 stop12h 59m
Frontier
Deal found 4/20![Frontier logo]()
$284
This American Airlines deal was found by Cheapflights users on 4/20. 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 5/198:14 am
SAT
- ORD
1 stop7h 07m
American Airlines
Tue 5/269:10 pm
ORD
- SAT
Nonstop2h 51m
American Airlines
Deal found 4/20![American Airlines logo]()
$286
This Kiwi.com deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/57:54 pm
SAT
- ORD
2 stops12h 01m
Frontier
Thu 5/79:37 pm
ORD
- SAT
1 stop21h 22m
Frontier
Deal found 4/20![Frontier logo]()
$287
This Frontier deal was found by Cheapflights users on 4/21. 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 6/194:22 pm
SAT
- ORD
1 stop6h 57m
Frontier
Sat 6/277:12 am
ORD
- SAT
1 stop12h 59m
Frontier
Deal found 4/21![Frontier logo]()
$289
This Frontier deal was found by Cheapflights users on 4/20. 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 6/204:22 pm
SAT
- ORD
1 stop6h 57m
Frontier
Sat 6/277:12 am
ORD
- SAT
1 stop12h 59m
Frontier
Deal found 4/20![Frontier logo]()
$290
This Kiwi.com deal was found by Cheapflights users on 4/18. 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 5/237:54 pm
SAT
- ORD
2 stops20h 12m
Frontier
Fri 5/299:37 pm
ORD
- SAT
1 stop21h 22m
Frontier
Deal found 4/18![Frontier logo]()
$291
This American Airlines deal was found by Cheapflights users on 4/21. 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.
Sat 6/65:35 pm
SAT
- ORD
1 stop4h 45m
American Airlines
Mon 6/89:05 pm
ORD
- SAT
Nonstop3h 00m
American Airlines
Deal found 4/21![American Airlines logo]()
$293
This Kiwi.com deal was found by Cheapflights users on 4/20. 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 5/97:54 pm
SAT
- ORD
2 stops12h 01m
Frontier
Mon 5/119:37 pm
ORD
- SAT
1 stop21h 22m
Frontier
Deal found 4/20![Frontier logo]()
$294
This Kiwi.com deal was found by Cheapflights users on 4/18. 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.
Sun 5/245:26 pm
SAT
- ORD
1 stop14h 56m
Multiple Airlines
Fri 5/299:37 pm
ORD
- SAT
1 stop21h 22m
Multiple Airlines
Deal found 4/18![Multiple Airlines logo]()
$295
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 April 22, 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 April 22, 2026.
This United Airlines deal was found by Cheapflights users on 4/21. 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.
Sat 8/225:30 am
SAT
- ORD
1 stop5h 49m
United Airlines
Mon 8/247:55 pm
ORD
- SAT
Nonstop3h 00m
United Airlines
Deal found 4/21![United Airlines logo]()
$293
This Southwest deal was found by Cheapflights users on 4/19. 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.
Tue 5/129:40 am
SAT
- ORD
2 stops8h 45m
Southwest
Tue 5/1911:55 am
ORD
- SAT
2 stops9h 50m
Southwest
Deal found 4/19![Southwest logo]()
$397
This Delta deal was found by Cheapflights users on 4/17. 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.
Tue 7/146:40 am
SAT
- ORD
1 stop7h 34m
Delta
Sun 7/192:07 pm
ORD
- SAT
1 stop8h 15m
Delta
Deal found 4/17![Delta logo]()
$427
This United Airlines deal was found by Cheapflights users on 4/21. 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 5/126:02 pm
SAT
- ORD
1 stop6h 43m
United Airlines
Tue 5/197:45 pm
ORD
- SAT
Nonstop3h 09m
United Airlines
Deal found 4/21![United Airlines logo]()
$331
This United Airlines deal was found by Cheapflights users on 4/21. 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 8/255:24 pm
SAT
- ORD
Nonstop2h 59m
United Airlines
Sun 8/307:55 pm
ORD
- SAT
Nonstop3h 00m
United Airlines
Deal found 4/21![United Airlines logo]()
$339
This United Airlines deal was found by Cheapflights users on 4/20. 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 6/96:40 am
SAT
- ORD
Nonstop2h 58m
United Airlines
Tue 6/169:10 am
ORD
- SAT
Nonstop3h 02m
United Airlines
Deal found 4/20![United Airlines logo]()
$367
This Southwest deal was found by Cheapflights users on 4/17. 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.
Fri 5/155:45 am
SAT
- ORD
2 stops7h 30m
Southwest
Tue 5/192:40 pm
ORD
- SAT
2 stops7h 05m
Southwest
Deal found 4/17![Southwest logo]()
$457
This United Airlines deal was found by Cheapflights users on 4/17. 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.
Sat 5/91:11 pm
SAT
- ORD
1 stop7h 12m
United Airlines
Tue 5/123:00 pm
ORD
- SAT
1 stop5h 49m
United Airlines
Deal found 4/17![United Airlines logo]()
$413
This United Airlines deal was found by Cheapflights users on 4/21. 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 9/45:57 pm
SAT
- ORD
1 stop6h 51m
United Airlines
Tue 9/81:07 pm
ORD
- SAT
Nonstop3h 01m
United Airlines
Deal found 4/21![United Airlines logo]()
$475
This United Airlines deal was found by Cheapflights users on 4/21. 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 6/196:40 am
SAT
- ORD
Nonstop2h 58m
United Airlines
Mon 6/227:55 pm
ORD
- SAT
Nonstop2h 59m
United Airlines
Deal found 4/21![United Airlines logo]()
$477
Last-minute flights from San Antonio to O'Hare IntlDiscover last-minute flight deals from San Antonio to O'Hare Intl. Data last updated April 22, 2026 and is based on user searches.
Discover last-minute flight deals from San Antonio to O'Hare Intl. Data last updated April 22, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 4/19. 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 4/278:39 pm
SAT
- ORD
1 stop9h 29m
Frontier
Wed 4/298:58 pm
ORD
- SAT
1 stop14h 42m
Frontier
Deal found 4/19![Frontier logo]()
$312
This Mytrip deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/278:39 pm
SAT
- ORD
1 stop9h 29m
Frontier
Mon 5/48:58 pm
ORD
- SAT
1 stop23h 16m
Frontier
Deal found 4/19![Frontier logo]()
$316
This Priceline deal was found by Cheapflights users on 4/17. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/278:39 pm
SAT
- ORD
1 stop9h 29m
Multiple Airlines
Mon 5/45:05 am
ORD
- SAT
1 stop11h 11m
Multiple Airlines
Deal found 4/17![Multiple Airlines logo]()
$347
This Kiwi.com deal was found by Cheapflights users on 4/19. 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 4/306:00 am
SAT
- ORD
1 stop18h 24m
Multiple Airlines
Sun 5/31:00 pm
ORD
- SAT
1 stop27h 16m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$357
This Kiwi.com deal was found by Cheapflights users on 4/19. 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 4/306:00 am
SAT
- ORD
1 stop15h 17m
Multiple Airlines
Sat 5/21:27 pm
ORD
- SAT
1 stop10h 24m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$367
This Gotogate deal was found by Cheapflights users on 4/18. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/18:24 pm
SAT
- ORD
1 stop9h 44m
Frontier
Wed 5/69:37 pm
ORD
- SAT
1 stop21h 22m
Frontier
Deal found 4/18![Frontier logo]()
$280
This Kiwi.com deal was found by Cheapflights users on 4/19. 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 5/13:00 pm
SAT
- ORD
2 stops23h 22m
Multiple Airlines
Sun 5/31:00 pm
ORD
- SAT
1 stop27h 16m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$308
This Expedia deal was found by Cheapflights users on 4/17. 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.
Fri 5/18:24 pm
SAT
- ORD
1 stop9h 44m
Multiple Airlines
Mon 5/45:05 am
ORD
- SAT
1 stop11h 11m
Multiple Airlines
Deal found 4/17![Multiple Airlines logo]()
$322
This Kiwi.com deal was found by Cheapflights users on 4/18. 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 5/13:00 pm
SAT
- ORD
2 stops26h 53m
Multiple Airlines
Wed 5/61:18 pm
ORD
- SAT
1 stop26h 58m
Multiple Airlines
Deal found 4/18![Multiple Airlines logo]()
$341
This Booking.com deal was found by Cheapflights users on 4/19. 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 5/18:24 pm
SAT
- ORD
1 stop9h 44m
Frontier
Sun 5/310:50 am
ORD
- SAT
1 stop27h 25m
Frontier
Deal found 4/19![Frontier logo]()
$343
This CheapOair deal was found by Cheapflights users on 4/18. 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 5/16:00 am
SAT
- ORD
1 stop18h 24m
Spirit Airlines
Mon 5/45:05 am
ORD
- SAT
1 stop11h 11m
Spirit Airlines
Deal found 4/18![Spirit Airlines logo]()
$364
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 April 22, 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 April 22, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/167:51 pm
SAT
- ORD
2 stops24h 02m
Frontier
Deal found 4/18![Frontier logo]()
$141
This United Airlines deal was found by Cheapflights users on 4/22. 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.
Sat 5/162:00 pm
SAT
- ORD
Nonstop2h 55m
United Airlines
Deal found 4/22![United Airlines logo]()
$142
This Frontier deal was found by Cheapflights users on 4/20. 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 6/264:22 pm
SAT
- ORD
1 stop6h 57m
Frontier
Deal found 4/20![Frontier logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 4/19. 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 5/167:54 pm
SAT
- ORD
2 stops13h 33m
Frontier
Deal found 4/19![Frontier logo]()
$147
This Mytrip deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/295:26 pm
SAT
- ORD
1 stop14h 56m
Spirit Airlines
Deal found 4/21![Spirit Airlines logo]()
$148
This American Airlines deal was found by Cheapflights users on 4/17. 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 6/176:00 am
SAT
- ORD
Nonstop3h 02m
American Airlines
Deal found 4/17![American Airlines logo]()
$149
This Kiwi.com deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/197:54 pm
SAT
- ORD
1 stop24h 38m
Frontier
Deal found 4/17![Frontier logo]()
$150
This Mytrip deal was found by Cheapflights users on 4/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/227:54 pm
SAT
- ORD
1 stop24h 38m
Frontier
Deal found 4/18![Frontier logo]()
$151
This CheapOair deal was found by Cheapflights users on 4/17. 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 7/97:51 pm
SAT
- ORD
1 stop25h 02m
Frontier
Deal found 4/17![Frontier logo]()
$153
This Kiwi.com deal was found by Cheapflights users on 4/19. 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 5/155:26 pm
SAT
- ORD
1 stop14h 56m
Spirit Airlines
Deal found 4/19![Spirit Airlines logo]()
$154
This Kiwi.com deal was found by Cheapflights users on 4/19. 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 5/187:54 pm
SAT
- ORD
2 stops27h 07m
Frontier
Deal found 4/19![Frontier logo]()
$155
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 April 22, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $281 (CheapOair) |
One-way from | $141 (Kiwi.com) |
Popular in | November |
Cheapest in | September |
Average price | $374 |
Good round-trip deal | $387 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 2,558,603 searches. Data last updated April 22, 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 - ORD
SATORD
San Antonio
Sat 8/22
5:30 am-11:19 am
1 stop5h 49m
Chicago O'Hare Intl
Mon 8/24
7:55 pm-10:55 pm
Nonstop3h 00m
$293
San AntonioChicago
SAT - ORD
SATORD
San Antonio
Tue 5/12
6:02 pm-12:45 am
1 stop6h 43m
Chicago O'Hare Intl
Tue 5/19
7:45 pm-10:54 pm
Nonstop3h 09m
$331
San AntonioChicago
SAT - ORD
SATORD
San Antonio
Tue 8/25
5:24 pm-8:23 pm
Nonstop2h 59m
Chicago O'Hare Intl
Sun 8/30
7:55 pm-10:55 pm
Nonstop3h 00m
$339
San AntonioChicago
SAT - ORD
SATORD
San Antonio
Tue 6/9
6:40 am-9:38 am
Nonstop2h 58m
Chicago O'Hare Intl
Tue 6/16
9:10 am-12:12 pm
Nonstop3h 02m
$367
San AntonioChicago
SAT - ORD
SATORD
San Antonio
Tue 5/12
9:40 am-6:25 pm
2 stops8h 45m
Chicago O'Hare Intl
Tue 5/19
11:55 am-9:45 pm
2 stops9h 50m
$397
San AntonioChicago
SAT - ORD
SATORD
San Antonio
Sat 5/9
1:11 pm-8:23 pm
1 stop7h 12m
Chicago O'Hare Intl
Tue 5/12
3:00 pm-8:49 pm
1 stop5h 49m
$413
San AntonioChicago
SAT - ORD
SATORD
San Antonio
Tue 7/14
6:40 am-2:14 pm
1 stop7h 34m
Chicago O'Hare Intl
Sun 7/19
2:07 pm-10:22 pm
1 stop8h 15m
$427
San AntonioChicago
SAT - ORD
SATORD
San Antonio
Fri 5/15
5:45 am-1:15 pm
2 stops7h 30m
Chicago O'Hare Intl
Tue 5/19
2:40 pm-9:45 pm
2 stops7h 05m
$457
San AntonioChicago
SAT - ORD
SATORD
San Antonio
Fri 9/4
5:57 pm-12:48 am
1 stop6h 51m
Chicago O'Hare Intl
Tue 9/8
1:07 pm-4:08 pm
Nonstop3h 01m
$475
Quickest round-trip
San AntonioChicago
SAT - ORD
SATORD
San Antonio
Fri 6/19
6:40 am-9:38 am
Nonstop2h 58m
Chicago O'Hare Intl
Mon 6/22
7:55 pm-10:54 pm
Nonstop2h 59m
$477
Showing 1-10 of 22 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 April.
| 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 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 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?
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 April 17, 2026.
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, September is the cheapest month in which you can book a flight from San Antonio to Chicago O'Hare Intl Airport (average of $330). 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 April 22, 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 41% 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 April 22, 2026.
Get a feel of what it's like to fly with United Airlines,American Airlines, andSpirit 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.
Boarding
7.7
Comfort
7.3
Food
6.6
Crew
8.1
Entertainment
7.1
Overall
7.4
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
DFW - EWR
Boarding
7.7
Comfort
7.3
Food
6.6
Crew
8.1
Entertainment
7.1
Overall
7.4
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
DFW - EWR
Boarding
7.7
Comfort
7.3
Food
6.6
Crew
8.1
Entertainment
7.1
Overall
7.4
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
DFW - EWR
Boarding
7.7
Comfort
7.3
Food
6.6
Crew
8.1
Entertainment
7.1
Overall
7.4
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
DFW - EWR
Boarding
7.7
Comfort
7.3
Food
6.6
Crew
8.1
Entertainment
7.1
Overall
7.4
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
DFW - EWR
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 locationsRosemont
Schaumburg
Naperville
Gurnee
Lake Geneva
Delavan
Hoffman Estates
Downers Grove
Oakbrook Terrace
Benton Harbor
Des Plaines
Oak Brook
South Holland
Libertyville
Elgin
Warrenville
Elk Grove Village
Bridgeview
Great Lakes
Lansing
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Other flights to O'Hare Intl
Explore flights to O'Hare Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on April 22, 2026.
San Antonio and O'Hare Intl flights
Browse other San Antonio and O'Hare Intl flight options. Last updated on April 22, 2026.
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Browse through other flights departing from San Antonio. Flights are based on user searches made on Cheapflights and were last updated on April 22, 2026.
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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 April 22, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$96 | Average$205 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$143 | Average$261 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$218 | Average$375 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$260 | Average$418 | FlexibilityNo cancel fee | On-time69% |