$90+ 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 5/1. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — ORD
Apr 9 — Apr 161
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 April, 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 March 10, 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 March 10, 2026.
This Booking.com deal was found by Cheapflights users on 3/10. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/184:04 pm
SAT
- ORD
1 stop17h 41m
Frontier
Mon 4/2010:55 am
ORD
- SAT
1 stop28h 14m
Frontier
Deal found 3/10![Frontier logo]()
$201
This Booking.com deal was found by Cheapflights users on 3/9. 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 3/3010:05 am
SAT
- ORD
1 stop14h 52m
Frontier
Wed 4/13:29 pm
ORD
- SAT
1 stop8h 50m
Frontier
Deal found 3/9![Frontier logo]()
$206
This Kiwi.com deal was found by Cheapflights users on 3/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/154:49 pm
SAT
- ORD
1 stop17h 01m
Multiple Airlines
Wed 4/221:27 pm
ORD
- SAT
1 stop10h 24m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$210
This Kiwi.com deal was found by Cheapflights users on 3/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/93:34 pm
SAT
- ORD
1 stop18h 16m
Multiple Airlines
Tue 5/124:28 pm
ORD
- SAT
2 stops20h 49m
Multiple Airlines
Deal found 3/5![Multiple Airlines logo]()
$214
This Expedia deal was found by Cheapflights users on 3/6. 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 4/810:22 am
SAT
- ORD
1 stop9h 29m
Multiple Airlines
Mon 4/132:29 pm
ORD
- SAT
1 stop24h 40m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$215
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 4/136:00 pm
SAT
- ORD
1 stop23h 00m
Frontier
Mon 4/2010:55 am
ORD
- SAT
1 stop28h 14m
Frontier
Deal found 3/9![Frontier logo]()
$217
This Kiwi.com deal was found by Cheapflights users on 3/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1410:22 am
SAT
- ORD
1 stop9h 29m
Multiple Airlines
Mon 4/208:58 pm
ORD
- SAT
2 stops18h 11m
Multiple Airlines
Deal found 3/5![Multiple Airlines logo]()
$220
This Expedia deal was found by Cheapflights users on 3/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1710:23 am
SAT
- ORD
1 stop29h 00m
Frontier
Mon 4/2010:55 am
ORD
- SAT
1 stop28h 14m
Frontier
Deal found 3/10![Frontier logo]()
$221
This Expedia deal was found by Cheapflights users on 3/6. 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.
Mon 5/46:31 pm
SAT
- ORD
1 stop12h 16m
Frontier
Wed 5/69:18 pm
ORD
- SAT
1 stop14h 22m
Frontier
Deal found 3/6![Frontier logo]()
$222
This Kiwi.com deal was found by Cheapflights users on 3/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/154:49 pm
SAT
- ORD
1 stop17h 01m
Frontier
Sat 4/185:50 am
ORD
- SAT
2 stops11h 45m
Frontier
Deal found 3/6![Frontier logo]()
$228
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 March 10, 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 March 10, 2026.
This United Airlines deal was found by Cheapflights users on 3/8. 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 3/305:30 pm
SAT
- ORD
Nonstop2h 56m
United Airlines
Sat 4/42:00 pm
ORD
- SAT
1 stop6h 42m
United Airlines
Deal found 3/8![United Airlines logo]()
$287
This Delta deal was found by Cheapflights users on 3/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/152:51 pm
SAT
- ORD
1 stop5h 27m
Delta
Mon 7/205:45 pm
ORD
- SAT
1 stop5h 27m
Delta
Deal found 3/5![Delta logo]()
$387
This Southwest deal was found by Cheapflights users on 3/7. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/410:40 am
SAT
- ORD
2 stops10h 20m
Southwest
Tue 8/47:10 am
ORD
- SAT
1 stop7h 40m
Southwest
Deal found 3/7![Southwest logo]()
$392
This United Airlines deal was found by Cheapflights users on 3/8. 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 5/122:25 pm
SAT
- ORD
1 stop5h 47m
United Airlines
Thu 5/149:05 am
ORD
- SAT
Nonstop3h 10m
United Airlines
Deal found 3/8![United Airlines logo]()
$314
This United Airlines deal was found by Cheapflights users on 3/6. 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.
Mon 5/45:49 pm
SAT
- ORD
Nonstop2h 56m
United Airlines
Thu 5/72:20 pm
ORD
- SAT
1 stop6h 29m
United Airlines
Deal found 3/6![United Airlines logo]()
$321
This Delta deal was found by Cheapflights users on 3/9. 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 6/166:30 am
SAT
- ORD
1 stop4h 59m
Delta
Sat 6/277:10 am
ORD
- SAT
1 stop5h 32m
Delta
Deal found 3/9![Delta logo]()
$387
This United Airlines deal was found by Cheapflights users on 3/6. 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 6/181:40 pm
SAT
- ORD
Nonstop3h 01m
United Airlines
Tue 6/236:00 am
ORD
- SAT
1 stop6h 43m
United Airlines
Deal found 3/6![United Airlines logo]()
$357
This United Airlines deal was found by Cheapflights users on 3/8. 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 4/182:02 pm
SAT
- ORD
Nonstop2h 55m
United Airlines
Mon 4/2012:43 pm
ORD
- SAT
1 stop5h 00m
United Airlines
Deal found 3/8![United Airlines logo]()
$367
This United Airlines deal was found by Cheapflights users on 3/6. 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.
Wed 4/152:02 pm
SAT
- ORD
Nonstop2h 55m
United Airlines
Sun 4/195:48 am
ORD
- SAT
1 stop5h 02m
United Airlines
Deal found 3/6![United Airlines logo]()
$372
This United Airlines deal was found by Cheapflights users on 3/6. 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 6/45:30 am
SAT
- ORD
1 stop4h 50m
United Airlines
Sun 6/79:10 am
ORD
- SAT
Nonstop3h 02m
United Airlines
Deal found 3/6![United Airlines logo]()
$379
This United Airlines deal was found by Cheapflights users on 3/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/22:02 pm
SAT
- ORD
Nonstop2h 55m
United Airlines
Thu 4/95:48 am
ORD
- SAT
1 stop7h 20m
United Airlines
Deal found 3/5![United Airlines logo]()
$388
Last-minute flights from San Antonio to O'Hare IntlDiscover last-minute flight deals from San Antonio to O'Hare Intl. Data last updated March 10, 2026 and is based on user searches.
Discover last-minute flight deals from San Antonio to O'Hare Intl. Data last updated March 10, 2026 and is based on user searches.
This Priceline deal was found by Cheapflights users on 3/6. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/242:13 pm
SAT
- ORD
1 stop9h 25m
Frontier
Thu 4/27:55 am
ORD
- SAT
1 stop7h 56m
Frontier
Deal found 3/6![Frontier logo]()
$235
This Booking.com deal was found by Cheapflights users on 3/9. 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 3/3010:05 am
SAT
- ORD
1 stop14h 52m
Frontier
Wed 4/13:29 pm
ORD
- SAT
1 stop8h 50m
Frontier
Deal found 3/9![Frontier logo]()
$206
This Expedia deal was found by Cheapflights users on 3/8. 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.
Mon 3/3010:05 am
SAT
- ORD
1 stop14h 52m
Frontier
Sat 4/48:00 am
ORD
- SAT
1 stop26h 43m
Frontier
Deal found 3/8![Frontier logo]()
$234
This Expedia deal was found by Cheapflights users on 3/6. 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 4/810:22 am
SAT
- ORD
1 stop9h 29m
Multiple Airlines
Mon 4/132:29 pm
ORD
- SAT
1 stop24h 40m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$215
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 4/136:00 pm
SAT
- ORD
1 stop23h 00m
Frontier
Mon 4/2010:55 am
ORD
- SAT
1 stop28h 14m
Frontier
Deal found 3/9![Frontier logo]()
$217
This Kiwi.com deal was found by Cheapflights users on 3/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1410:22 am
SAT
- ORD
1 stop9h 29m
Multiple Airlines
Mon 4/208:58 pm
ORD
- SAT
2 stops18h 11m
Multiple Airlines
Deal found 3/5![Multiple Airlines logo]()
$220
This Kiwi.com deal was found by Cheapflights users on 3/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/154:49 pm
SAT
- ORD
1 stop17h 01m
Multiple Airlines
Wed 4/221:27 pm
ORD
- SAT
1 stop10h 24m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$210
This Kiwi.com deal was found by Cheapflights users on 3/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/154:49 pm
SAT
- ORD
1 stop17h 01m
Frontier
Sat 4/185:50 am
ORD
- SAT
2 stops11h 45m
Frontier
Deal found 3/6![Frontier logo]()
$228
This Kiwi.com deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/163:00 pm
SAT
- ORD
1 stop18h 50m
Frontier
Mon 4/208:58 pm
ORD
- SAT
2 stops42h 55m
Frontier
Deal found 3/10![Frontier logo]()
$229
This Expedia deal was found by Cheapflights users on 3/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1710:23 am
SAT
- ORD
1 stop29h 00m
Frontier
Mon 4/2010:55 am
ORD
- SAT
1 stop28h 14m
Frontier
Deal found 3/10![Frontier logo]()
$221
This Booking.com deal was found by Cheapflights users on 3/10. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/184:04 pm
SAT
- ORD
1 stop17h 41m
Frontier
Mon 4/2010:55 am
ORD
- SAT
1 stop28h 14m
Frontier
Deal found 3/10![Frontier logo]()
$201
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 March 10, 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 March 10, 2026.
This Booking.com deal was found by Cheapflights users on 3/6. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/18:25 pm
SAT
- ORD
1 stop9h 43m
Frontier
Deal found 3/6![Frontier logo]()
$90
This Expedia deal was found by Cheapflights users on 3/5. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/184:04 pm
SAT
- ORD
1 stop17h 41m
Frontier
Deal found 3/5![Frontier logo]()
$96
This Booking.com deal was found by Cheapflights users on 3/9. 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.
Wed 3/256:45 am
SAT
- ORD
1 stop26h 58m
Frontier
Deal found 3/9![Frontier logo]()
$97
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 5/93:34 pm
SAT
- ORD
1 stop18h 16m
Frontier
Deal found 3/9![Frontier logo]()
$99
This Cheapflightsfares deal was found by Cheapflights users on 3/6. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1410:22 am
SAT
- ORD
1 stop9h 29m
Spirit Airlines
Deal found 3/6![Spirit Airlines logo]()
$100
This Cheapflightsfares deal was found by Cheapflights users on 3/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/241:22 pm
SAT
- ORD
1 stop6h 41m
Spirit Airlines
Deal found 3/10![Spirit Airlines logo]()
$101
This Kiwi.com deal was found by Cheapflights users on 3/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/53:14 pm
SAT
- ORD
2 stops19h 30m
Frontier
Deal found 3/6![Frontier logo]()
$106
This Kiwi.com deal was found by Cheapflights users on 3/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/83:14 pm
SAT
- ORD
2 stops31h 25m
Frontier
Deal found 3/6![Frontier logo]()
$107
This Super.com deal was found by Cheapflights users on 3/7. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/172:08 pm
SAT
- ORD
1 stop9h 30m
Frontier
Deal found 3/7![Frontier logo]()
$110
This Frontier deal was found by Cheapflights users on 3/6. 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.
Fri 4/1710:23 am
SAT
- ORD
1 stop6h 46m
Frontier
Deal found 3/6![Frontier logo]()
$111
This Booking.com deal was found by Cheapflights users on 3/6. 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 Booking.com 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
Deal found 3/6![Frontier logo]()
$112
This Super.com deal was found by Cheapflights users on 3/5. 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.
Wed 3/186:45 am
SAT
- ORD
1 stop26h 58m
Frontier
Deal found 3/5![Frontier logo]()
$115
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 March 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $201 (Booking.com) |
One-way from | $90 (Booking.com) |
Popular in | November |
Cheapest in | September |
Average price | $388 |
Good round-trip deal | $388 or less |
Good one-way deal | $230 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 March 10, 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
Mon 3/30
5:30 pm-8:26 pm
Nonstop2h 56m
Chicago O'Hare Intl
Sat 4/4
2:00 pm-8:42 pm
1 stop6h 42m
$287
San AntonioChicago
SAT - ORD
SATORD
San Antonio
Tue 5/12
2:25 pm-8:12 pm
1 stop5h 47m
Chicago O'Hare Intl
Thu 5/14
9:05 am-12:15 pm
Nonstop3h 10m
$314
San AntonioChicago
SAT - ORD
SATORD
San Antonio
Mon 5/4
5:49 pm-8:45 pm
Nonstop2h 56m
Chicago O'Hare Intl
Thu 5/7
2:20 pm-8:49 pm
1 stop6h 29m
$321
San AntonioChicago
SAT - ORD
SATORD
San Antonio
Thu 6/18
1:40 pm-4:41 pm
Nonstop3h 01m
Chicago O'Hare Intl
Tue 6/23
6:00 am-12:43 pm
1 stop6h 43m
$357
San AntonioChicago
SAT - ORD
SATORD
San Antonio
Sat 4/18
2:02 pm-4:57 pm
Nonstop2h 55m
Chicago O'Hare Intl
Mon 4/20
12:43 pm-5:43 pm
1 stop5h 00m
$367
San AntonioChicago
SAT - ORD
SATORD
San Antonio
Wed 4/15
2:02 pm-4:57 pm
Nonstop2h 55m
Chicago O'Hare Intl
Sun 4/19
5:48 am-10:50 am
1 stop5h 02m
$372
Quickest round-trip
San AntonioChicago
SAT - ORD
SATORD
San Antonio
Thu 6/4
5:30 am-10:20 am
1 stop4h 50m
Chicago O'Hare Intl
Sun 6/7
9:10 am-12:12 pm
Nonstop3h 02m
$379
San AntonioChicago
SAT - ORD
SATORD
San Antonio
Wed 7/15
2:51 pm-8:18 pm
1 stop5h 27m
Chicago O'Hare Intl
Mon 7/20
5:45 pm-11:12 pm
1 stop5h 27m
$387
San AntonioChicago
SAT - ORD
SATORD
San Antonio
Tue 6/16
6:30 am-11:29 am
1 stop4h 59m
Chicago O'Hare Intl
Sat 6/27
7:10 am-12:42 pm
1 stop5h 32m
$387
San AntonioChicago
SAT - ORD
SATORD
San Antonio
Thu 4/2
2:02 pm-4:57 pm
Nonstop2h 55m
Chicago O'Hare Intl
Thu 4/9
5:48 am-1:08 pm
1 stop7h 20m
$388
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 March.
| 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 Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on San Antonio-Chicago O'Hare Intl Airport flights, users find the pricing of 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 March 6, 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, January is the cheapest month in which you can book a flight from San Antonio to Chicago O'Hare Intl Airport (average of $54). Flying from San Antonio to Chicago O'Hare Intl Airport in May is currently the most expensive (average of $156). 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 March 10, 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 March 10, 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.
Food
6.6
Overall
7.4
Boarding
7.7
Entertainment
7.1
Crew
8.1
Comfort
7.3
Reviews
1 / 20
10.0
ExcellentSunderesh,Dec 2025
AUS - EWR
Food
6.6
Overall
7.4
Boarding
7.7
Entertainment
7.1
Crew
8.1
Comfort
7.3
Reviews
1 / 20
10.0
ExcellentSunderesh,Dec 2025
AUS - EWR
Food
6.6
Overall
7.4
Boarding
7.7
Entertainment
7.1
Crew
8.1
Comfort
7.3
Reviews
1 / 20
10.0
ExcellentSunderesh,Dec 2025
AUS - EWR
Food
6.6
Overall
7.4
Boarding
7.7
Entertainment
7.1
Crew
8.1
Comfort
7.3
Reviews
1 / 20
10.0
ExcellentSunderesh,Dec 2025
AUS - EWR
Food
6.6
Overall
7.4
Boarding
7.7
Entertainment
7.1
Crew
8.1
Comfort
7.3
Reviews
1 / 20
10.0
ExcellentSunderesh,Dec 2025
AUS - 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 locationsSchaumburg
Rosemont
Gurnee
Naperville
Lake Geneva
Hoffman Estates
Delavan
Downers Grove
Des Plaines
Elgin
Elk Grove Village
Skokie
Oak Brook
South Holland
Beloit
Libertyville
Waukegan
Warrenville
Bridgeview
Oakbrook Terrace
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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 March 10, 2026.
San Antonio and O'Hare Intl flights
Browse other San Antonio and O'Hare Intl flight options. Last updated on March 10, 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 March 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$96 | Average$205 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$143 | Average$274 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$215 | Average$370 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$260 | Average$435 | FlexibilityNo cancel fee | On-time69% |