$59+ Cheap flights from Ohio to Illinois
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 10/12. Fares are subject to change and may not be available on all flights or dates of travel.
CLE — ORD
Oct 18 — Oct 251
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Ohio to Illinois 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.Cheap flight deals from Ohio to Illinois
Cheapest
Best
Last-minute
One-way
Cheapest flights from Ohio to IllinoisExplore the most affordable flight options available from Ohio to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 18, 2026.
Explore the most affordable flight options available from Ohio to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 18, 2026.
This Southwest deal was found by Cheapflights users on 9/17. 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.
Mon 12/71:55 pm -
Nonstop1h 30m
Thu 12/103:50 pm -
1 stop3h 55m
Deal found 9/17![Southwest logo]()
$127
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/186:25 am -
1 stop12h 15m
Wed 12/92:59 pm -
1 stop21h 44m
Deal found 9/15![Frontier logo]()
$140
This Southwest deal was found by Cheapflights users on 9/17. 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.
Thu 10/158:20 am -
Nonstop1h 20m
Thu 10/222:35 pm -
Nonstop1h 10m
Deal found 9/17![Southwest logo]()
$144
This American Airlines deal was found by Cheapflights users on 9/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/95:12 am -
Nonstop1h 37m
Sat 10/109:45 am -
Nonstop1h 31m
Deal found 9/18![American Airlines logo]()
$144
This Kiwi.com deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/216:30 am -
1 stop12h 10m
Mon 10/266:35 pm -
1 stop15h 37m
Deal found 9/16![Frontier logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/53:45 pm -
1 stop21h 06m
Tue 10/67:28 pm -
1 stop24h 24m
Deal found 9/14![Frontier logo]()
$149
This Kiwi.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/213:46 pm -
1 stop18h 35m
Thu 10/227:44 pm -
1 stop15h 25m
Deal found 9/14![Frontier logo]()
$156
This Delta deal was found by Cheapflights users on 9/17. 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.
Wed 10/144:07 pm -
1 stop5h 23m
Sat 10/1711:09 am -
1 stop3h 07m
Deal found 9/17![Delta logo]()
$157
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/26:25 am -
1 stop12h 15m
Mon 11/96:44 pm -
1 stop15h 59m
Deal found 9/15![Frontier logo]()
$160
This Orbitz deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/287:00 am -
1 stop12h 16m
Sat 10/317:15 am -
1 stop5h 19m
Deal found 9/15![Frontier logo]()
$161
This Super.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/37:00 am -
1 stop6h 51m
Sat 11/147:15 am -
1 stop5h 19m
Deal found 9/14![Frontier logo]()
$163
This Southwest deal was found by Cheapflights users on 9/17. 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 10/169:00 pm -
1 stop3h 55m
Tue 10/208:05 am -
1 stop3h 55m
Deal found 9/17![Southwest logo]()
$164
Best flights from Ohio to IllinoisDiscover carefully curated flight deals from Ohio to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 18, 2026.
Discover carefully curated flight deals from Ohio to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 18, 2026.
This Southwest deal was found by Cheapflights users on 9/17. 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.
Thu 10/88:20 pm -
Nonstop1h 15m
Mon 11/97:50 am -
Nonstop1h 20m
Deal found 9/17![Southwest logo]()
$183
This United Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1710:53 am -
Nonstop1h 36m
Mon 10/196:08 pm -
Nonstop1h 26m
Deal found 9/16![United Airlines logo]()
$222
This Delta deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/179:15 am -
Nonstop1h 22m
Thu 1/79:30 am -
Nonstop1h 11m
Deal found 9/15![Delta logo]()
$235
This JetBlue deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/511:35 am -
1 stop8h 28m
Sat 10/109:38 am -
1 stop5h 25m
Deal found 9/14![JetBlue logo]()
$317
This Southwest deal was found by Cheapflights users on 9/17. 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.
Thu 10/154:50 pm -
1 stop3h 25m
Mon 10/197:45 am -
Nonstop1h 15m
Deal found 9/17![Southwest logo]()
$193
This United Airlines deal was found by Cheapflights users on 9/17. 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 10/244:23 pm -
Nonstop1h 39m
Mon 10/262:21 pm -
Nonstop1h 28m
Deal found 9/17![United Airlines logo]()
$222
This Southwest deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/67:05 pm -
1 stop4h 10m
Wed 10/141:35 pm -
Nonstop1h 10m
Deal found 9/14![Southwest logo]()
$217
This Delta deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/126:50 am -
1 stop6h 09m
Mon 12/216:15 pm -
1 stop4h 44m
Deal found 9/14![Delta logo]()
$242
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/127:00 am -
Nonstop1h 37m
Sat 10/177:15 am -
Nonstop1h 26m
Deal found 9/15![United Airlines logo]()
$222
This Delta deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/124:10 pm -
1 stop5h 05m
Mon 12/145:33 pm -
1 stop4h 53m
Deal found 9/15![Delta logo]()
$242
This Southwest deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/288:35 am -
Nonstop1h 20m
Thu 10/292:35 pm -
Nonstop1h 10m
Deal found 9/16![Southwest logo]()
$222
This United Airlines deal was found by Cheapflights users on 9/17. 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.
Thu 10/87:00 am -
Nonstop1h 34m
Thu 10/89:41 pm -
Nonstop1h 18m
Deal found 9/17![United Airlines logo]()
$231
This Southwest deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/249:15 am -
Nonstop1h 10m
Wed 10/283:05 pm -
2 stops6h 30m
Deal found 9/15![Southwest logo]()
$222
This Delta deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1510:01 am -
Nonstop1h 28m
Fri 10/167:00 am -
Nonstop1h 30m
Deal found 9/15![Delta logo]()
$250
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/222:16 pm -
Nonstop1h 34m
Wed 10/287:29 am -
Nonstop1h 31m
Deal found 9/15![United Airlines logo]()
$235
This Southwest deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:10 am -
1 stop5h 45m
Wed 10/218:05 am -
1 stop3h 55m
Deal found 9/16![Southwest logo]()
$227
This Delta deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/155:40 pm -
Nonstop1h 20m
Fri 10/169:29 am -
Nonstop1h 14m
Deal found 9/15![Delta logo]()
$250
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/107:30 am -
Nonstop1h 28m
Mon 10/129:32 pm -
Nonstop1h 27m
Deal found 9/14![United Airlines logo]()
$235
This Southwest deal was found by Cheapflights users on 9/17. 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.
Thu 10/228:25 pm -
1 stop3h 45m
Sat 10/242:40 pm -
1 stop6h 20m
Deal found 9/17![Southwest logo]()
$230
This Delta deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/102:00 pm -
1 stop5h 00m
Mon 10/126:44 pm -
1 stop4h 14m
Deal found 9/15![Delta logo]()
$255
This United Airlines deal was found by Cheapflights users on 9/17. 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.
Thu 10/298:55 am -
Nonstop1h 40m
Sun 11/19:02 am -
Nonstop1h 40m
Deal found 9/17![United Airlines logo]()
$243
This Southwest deal was found by Cheapflights users on 9/17. 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.
Sat 10/249:10 am -
Nonstop1h 20m
Mon 10/265:50 pm -
1 stop3h 40m
Deal found 9/17![Southwest logo]()
$232
This Delta deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/910:46 am -
1 stop4h 13m
Mon 11/97:15 pm -
1 stop3h 38m
Deal found 9/16![Delta logo]()
$257
This United Airlines deal was found by Cheapflights users on 9/17. 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.
Thu 10/229:00 am -
Nonstop1h 36m
Sun 10/259:20 pm -
Nonstop1h 22m
Deal found 9/17![United Airlines logo]()
$243
This Southwest deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/176:40 pm -
1 stop4h 05m
Mon 10/197:45 am -
Nonstop1h 15m
Deal found 9/16![Southwest logo]()
$232
This Delta deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/1210:31 am -
1 stop3h 30m
Sat 1/99:55 am -
1 stop5h 22m
Deal found 9/15![Delta logo]()
$267
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1512:30 pm -
Nonstop1h 33m
Fri 10/167:45 pm -
Nonstop1h 30m
Deal found 9/14![United Airlines logo]()
$250
This Southwest deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/176:50 pm -
1 stop3h 55m
Tue 10/202:45 pm -
2 stops5h 10m
Deal found 9/15![Southwest logo]()
$244
This Delta deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/38:15 am -
1 stop3h 44m
Mon 12/77:15 pm -
1 stop3h 53m
Deal found 9/16![Delta logo]()
$271
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/134:10 pm -
Nonstop1h 49m
Thu 10/159:20 pm -
Nonstop1h 39m
Deal found 9/15![United Airlines logo]()
$265
Last-minute flights from Ohio to IllinoisDiscover last-minute flight deals from Ohio to Illinois. Data last updated September 18, 2026 and is based on user searches.
Discover last-minute flight deals from Ohio to Illinois. Data last updated September 18, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/53:45 pm -
1 stop21h 06m
Tue 10/67:28 pm -
1 stop24h 24m
Deal found 9/14![Frontier logo]()
$149
This American Airlines deal was found by Cheapflights users on 9/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/95:12 am -
Nonstop1h 37m
Tue 10/137:48 pm -
Nonstop1h 35m
Deal found 9/18![American Airlines logo]()
$144
This Delta deal was found by Cheapflights users on 9/17. 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.
Wed 10/144:07 pm -
1 stop5h 23m
Sat 10/1711:09 am -
1 stop3h 07m
Deal found 9/17![Delta logo]()
$157
This Southwest deal was found by Cheapflights users on 9/17. 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.
Thu 10/158:20 am -
Nonstop1h 20m
Thu 10/222:35 pm -
Nonstop1h 10m
Deal found 9/17![Southwest logo]()
$144
This Southwest deal was found by Cheapflights users on 9/17. 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 10/169:00 pm -
1 stop3h 55m
Tue 10/208:05 am -
1 stop3h 55m
Deal found 9/17![Southwest logo]()
$164
This Super.com deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1612:43 pm -
1 stop6h 48m
Tue 10/206:00 am -
1 stop4h 38m
Deal found 9/16![Frontier logo]()
$169
This Kiwi.com deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/216:30 am -
1 stop12h 10m
Mon 10/266:35 pm -
1 stop15h 37m
Deal found 9/16![Frontier logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/213:46 pm -
1 stop18h 35m
Thu 10/227:44 pm -
1 stop15h 25m
Deal found 9/14![Frontier logo]()
$156
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2112:43 pm -
1 stop6h 48m
Sat 10/317:20 pm -
1 stop13h 59m
Deal found 9/15![Frontier logo]()
$167
This Mytrip deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2411:55 am -
1 stop7h 36m
Tue 10/277:50 pm -
1 stop14h 29m
Deal found 9/16![Frontier logo]()
$170
This Orbitz deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/287:00 am -
1 stop12h 16m
Sat 10/317:15 am -
1 stop5h 19m
Deal found 9/15![Frontier logo]()
$161
This CheapOair deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/318:30 am -
1 stop5h 21m
Sat 11/147:15 am -
1 stop5h 19m
Deal found 9/16![Frontier logo]()
$166
One-way flights from Ohio to IllinoisSearch for one-way flight options from Ohio to Illinois. Find affordable one-way fares based on user searches. Data last updated September 18, 2026.
Search for one-way flight options from Ohio to Illinois. Find affordable one-way fares based on user searches. Data last updated September 18, 2026.
This Southwest deal was found by Cheapflights users on 9/18. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/122:40 pm -
Nonstop1h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Southwest logo]()
$59
This American Airlines deal was found by Cheapflights users on 9/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/128:44 pm -
Nonstop1h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![American Airlines logo]()
$59
This Super.com deal was found by Cheapflights users on 9/17. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1711:55 am -
1 stop7h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Frontier logo]()
$67
This Southwest deal was found by Cheapflights users on 9/17. 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.
Sat 10/176:40 pm -
1 stop4h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Southwest logo]()
$69
This Booking.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2411:55 am -
1 stop7h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Frontier logo]()
$69
This Orbitz deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/286:25 am -
1 stop12h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Frontier logo]()
$78
This Delta deal was found by Cheapflights users on 9/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/142:14 pm -
1 stop4h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Delta logo]()
$79
This Kiwi.com deal was found by Cheapflights users on 9/17. 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 11/177:44 pm -
1 stop23h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Frontier logo]()
$80
This Super.com deal was found by Cheapflights users on 9/17. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/47:00 am -
1 stop6h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Frontier logo]()
$80
This Kiwi.com deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1712:43 pm -
1 stop6h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Frontier logo]()
$80
This Super.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/318:30 am -
1 stop5h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Frontier logo]()
$81
This Kiwi.com deal was found by Cheapflights users on 9/17. 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.
Wed 11/1812:36 pm -
1 stop6h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Frontier logo]()
$81
Find flight deals from Ohio to Illinois
Keep the following information in mind while searching for Ohio to Illinois flight deals. Data was last updated September 18, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $127 (Southwest) |
One-way from | $59 (Southwest) |
Popular in | January |
Cheapest in | May |
Average price | $247 |
Good round-trip deal | $312 or less |
Good one-way deal | $173 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Ohio to Illinois 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 18, 2026.
Use the filters below to find and compare flights from Ohio to Illinois that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ClevelandChicago
CLE Cleveland Hopkins Intl - MDW Chicago Midway
CLEMDW
Cleveland Hopkins Intl
Sat 10/17
6:40 pm-9:45 pm
1 stop4h 05m
Chicago Midway
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$69
ClevelandChicago
CLE Cleveland Hopkins Intl - MDW Chicago Midway
CLEMDW
Cleveland Hopkins Intl
Thu 10/15
8:20 am-8:40 am
Nonstop1h 20m
Chicago Midway
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$86
ClevelandChicago
CLE Cleveland Hopkins Intl - ORD Chicago O'Hare Intl
CLEORD
Cleveland Hopkins Intl
Fri 11/27
2:14 pm-4:18 pm
1 stop3h 04m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$96
DetroitChicago
DTW Detroit Metropolitan Wayne County - ORD Chicago O'Hare Intl
DTWORD
Detroit Metropolitan Wayne County
Tue 11/17
1:27 pm-1:59 pm
Nonstop1h 32m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$99
DetroitChicago
DTW Detroit Metropolitan Wayne County - MDW Chicago Midway
DTWMDW
Detroit Metropolitan Wayne County
Wed 10/14
5:40 pm-6:00 pm
Nonstop1h 20m
Chicago Midway
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$99
CincinnatiChicago
CVG Cincinnati Cinci./N. Kentucky - ORD Chicago O'Hare Intl
CVGORD
Cincinnati Cinci./N. Kentucky
Wed 10/7
11:52 am-12:29 pm
Nonstop1h 37m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$103
CincinnatiChicago
CVG Cincinnati Cinci./N. Kentucky - ORD Chicago O'Hare Intl
CVGORD
Cincinnati Cinci./N. Kentucky
Wed 12/16
5:15 am-5:54 am
Nonstop1h 39m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$103
CincinnatiChicago
CVG Cincinnati Cinci./N. Kentucky - ORD Chicago O'Hare Intl
CVGORD
Cincinnati Cinci./N. Kentucky
Sat 10/10
4:10 pm-4:48 pm
Nonstop1h 38m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$103
ClevelandChicago
CLE Cleveland Hopkins Intl - ORD Chicago O'Hare Intl
CLEORD
Cleveland Hopkins Intl
Tue 10/6
2:02 pm-2:42 pm
Nonstop1h 40m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$104
DetroitChicago
DTW Detroit Metropolitan Wayne County - ORD Chicago O'Hare Intl
DTWORD
Detroit Metropolitan Wayne County
Wed 10/14
12:33 pm-12:59 pm
Nonstop1h 26m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$104
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Ohio to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from Ohio with our price prediction graph.
CLE-MDW
CLE-ORD
CVG-ORD
DTW-STL
CMH-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 Ohio to Illinois
USOH-USIL
CLE-MDW
CLE-ORD
CVG-ORD
DTW-STL
What is the cheapest month to book a flight from Ohio to Illinois?
Currently, April is the cheapest month in which you can book a flight from Ohio to Illinois (average of $279). Flying from Ohio to Illinois in July is currently the most expensive (average of $355). 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 OH to IL?
Find hourly flight availability from Ohio to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 18, 2026.
Unlike at noon, when flights are generally more expensive, you can save up to 27% on flights from Ohio to Illinois by exploring options for tickets in the morning.
Weekly flight availability from Ohio to Illinois
Explore weekly flight availability from Ohio to Illinois. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated September 18, 2026.
The most flights from USOH to USIL are scheduled on a Thursday (66 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (44 on average).
How much does it cost to fly round-trip from Ohio to Illinois?
Airfare is below average for this route at the moment.
Ohio to Illinois flights typically cost between $187 and $370 in October.The cheapest round-trip price found within the last 5 days was $135 on Frontier (Oct 27-Oct 31).
How far ahead should I book a flight from Ohio to Illinois?
The best time to book flights from Ohio to Illinois is 77 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest day to fly from Ohio to Illinois?
Use this chart to determine the cheapest time to fly round-trip from Ohio to Illinois. Price data was last updated on September 12, 2026.
Travelers seeking maximum savings on their Ohio to Illinois flight should consider departing on Saturday at noon when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing Illinois
Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated September 18, 2026.
Read through reviews of airlines operating flights from Ohio to Illinois, such as Southwest,United Airlines, andAmerican Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Food
7.0
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Food
7.0
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Food
7.0
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Food
7.0
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Related info for your journey
Find useful and relevant information for your journey from Ohio to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Return Flight Options
Top destinations
Alternative routes for Ohio to Illinois
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Illinois by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Ohio to Illinois by cabin class
Find flights from Ohio to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Ohio and Illinois flights
Browse other Ohio and Illinois flight options. Last updated on September 18, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Illinois
Find the right flight back to Ohio after your stay in Illinois
Ohio to Illinois flights
Consider these flights traveling from Ohio to Illinois.
Top 4 airlines flying from Ohio to Illinois
Discover the top 4 airlines that operate flights from Ohio to Illinois. 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 18, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$117 | Average$288 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$131 | Average$339 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$134 | Average$324 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$146 | Average$222 | FlexibilityNo cancel fee | On-time62% |