$65+ Cheap flights from Ohio to Illinois
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 5/26. Fares are subject to change and may not be available on all flights or dates of travel.
CLE — ORD
May 28 — Jun 41
Round-trip
1 adult, Economy
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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 April 28, 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 April 28, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/26. 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 5/216:54 am
CLE
- STL
1 stop10h 21m
Frontier
Wed 5/275:27 pm
STL
- CLE
1 stop14h 26m
Frontier
Deal found 4/26![Frontier logo]()
$127
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 5/226:54 am
CLE
- STL
1 stop27h 01m
Frontier
Wed 5/275:27 pm
STL
- CLE
1 stop17h 23m
Frontier
Deal found 4/27![Frontier logo]()
$129
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 5/216:54 am
CLE
- STL
1 stop10h 21m
Frontier
Mon 5/255:27 pm
STL
- CLE
1 stop14h 26m
Frontier
Deal found 4/27![Frontier logo]()
$134
This Kiwi.com deal was found by Cheapflights users on 4/26. 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 5/268:49 pm
CLE
- STL
1 stop13h 06m
Frontier
Tue 6/26:33 pm
STL
- CLE
1 stop22h 54m
Frontier
Deal found 4/26![Frontier logo]()
$136
This Southwest deal was found by Cheapflights users on 4/26. 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 6/105:35 am
DTW
- MDW
1 stop4h 05m
Southwest
Wed 6/176:10 pm
MDW
- DTW
Nonstop1h 10m
Southwest
Deal found 4/26![Southwest logo]()
$147
This Kiwi.com deal was found by Cheapflights users on 4/24. 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 5/232:40 pm
DTW
- ORD
1 stop18h 15m
Frontier
Tue 6/96:55 am
ORD
- DTW
1 stop10h 04m
Frontier
Deal found 4/24![Frontier logo]()
$153
This Kiwi.com deal was found by Cheapflights users on 4/24. 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 5/206:00 am
DTW
- MDW
1 stop6h 09m
Frontier
Wed 6/106:00 am
MDW
- DTW
1 stop9h 53m
Frontier
Deal found 4/24![Frontier logo]()
$155
This Delta deal was found by Cheapflights users on 4/26. 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 6/236:00 am
CLE
- STL
1 stop5h 28m
Delta
Tue 6/236:10 pm
STL
- CLE
1 stop4h 49m
Delta
Deal found 4/26![Delta logo]()
$157
This Delta deal was found by Cheapflights users on 4/27. 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 6/105:35 am
CLE
- ORD
1 stop5h 38m
Delta
Wed 6/178:08 am
ORD
- CLE
1 stop4h 30m
Delta
Deal found 4/27![Delta logo]()
$157
This Kiwi.com deal was found by Cheapflights users on 4/24. 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 6/33:36 pm
CLE
- ORD
1 stop17h 19m
Frontier
Thu 6/41:50 pm
ORD
- CLE
1 stop21h 00m
Frontier
Deal found 4/24![Frontier logo]()
$158
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 5/206:05 pm
DTW
- ORD
1 stop14h 46m
Frontier
Wed 5/271:50 pm
ORD
- DTW
1 stop9h 49m
Frontier
Deal found 4/27![Frontier logo]()
$159
This Expedia deal was found by Cheapflights users on 4/26. 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 5/118:43 am
CLE
- STL
1 stop16h 38m
Frontier
Mon 5/184:19 pm
STL
- CLE
1 stop27h 33m
Frontier
Deal found 4/26![Frontier logo]()
$160
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 April 28, 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 April 28, 2026.
This Delta deal was found by Cheapflights users on 4/25. 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 5/268:25 am
DTW
- MDW
Nonstop1h 18m
Delta
Sat 5/309:22 am
MDW
- DTW
Nonstop1h 13m
Delta
Deal found 4/25![Delta logo]()
$164
This Southwest deal was found by Cheapflights users on 4/27. 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 5/207:40 pm
DTW
- MDW
Nonstop1h 10m
Southwest
Wed 5/271:55 pm
MDW
- DTW
1 stop6h 20m
Southwest
Deal found 4/27![Southwest logo]()
$174
This United Airlines deal was found by Cheapflights users on 4/24. 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 5/259:00 am
CLE
- ORD
Nonstop1h 34m
United Airlines
Mon 6/16:00 am
ORD
- CLE
Nonstop1h 29m
United Airlines
Deal found 4/24![United Airlines logo]()
$191
This KAYAK deal was found by Cheapflights users on 4/24. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/92:07 pm
CVG
- ORD
Nonstop1h 39m
American Airlines
Fri 6/125:10 am
ORD
- CVG
1 stop7h 15m
American Airlines
Deal found 4/24![American Airlines logo]()
$304
This Delta deal was found by Cheapflights users on 4/25. 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 6/34:49 pm
CMH
- ORD
1 stop4h 37m
Delta
Tue 6/97:17 pm
ORD
- CMH
1 stop3h 42m
Delta
Deal found 4/25![Delta logo]()
$177
This Delta deal was found by Cheapflights users on 4/23. 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 5/2612:35 pm
DTW
- ORD
Nonstop1h 26m
Delta
Wed 5/2711:09 am
ORD
- DTW
Nonstop1h 21m
Delta
Deal found 4/23![Delta logo]()
$177
This United Airlines deal was found by Cheapflights users on 4/27. 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 5/2810:54 am
PIT
- STL
1 stop4h 29m
United Airlines
Mon 6/15:41 pm
STL
- PIT
1 stop5h 18m
United Airlines
Deal found 4/27![United Airlines logo]()
$197
This Southwest deal was found by Cheapflights users on 4/26. 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 5/185:55 am
PIT
- ORD
1 stop7h 55m
Southwest
Sat 5/301:55 pm
ORD
- PIT
2 stops8h 10m
Southwest
Deal found 4/26![Southwest logo]()
$208
This Delta deal was found by Cheapflights users on 4/23. 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 5/266:19 pm
DTW
- MDW
Nonstop1h 14m
Delta
Wed 5/271:22 pm
MDW
- DTW
Nonstop1h 13m
Delta
Deal found 4/23![Delta logo]()
$177
This United Airlines deal was found by Cheapflights users on 4/27. 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 5/192:08 pm
PIT
- ORD
Nonstop1h 47m
United Airlines
Wed 5/2010:35 am
ORD
- PIT
Nonstop1h 36m
United Airlines
Deal found 4/27![United Airlines logo]()
$207
This Southwest deal was found by Cheapflights users on 4/27. 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 5/261:20 pm
DTW
- MDW
2 stops7h 05m
Southwest
Tue 6/24:40 pm
MDW
- DTW
1 stop3h 35m
Southwest
Deal found 4/27![Southwest logo]()
$216
This Delta deal was found by Cheapflights users on 4/23. 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 6/64:00 pm
DTW
- ORD
Nonstop1h 29m
Delta
Wed 6/1011:30 am
ORD
- DTW
Nonstop1h 29m
Delta
Deal found 4/23![Delta logo]()
$184
This Southwest deal was found by Cheapflights users on 4/25. 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 6/311:40 am
CMH
- MDW
2 stops5h 05m
Southwest
Tue 6/95:30 pm
MDW
- CMH
1 stop4h 20m
Southwest
Deal found 4/25![Southwest logo]()
$217
This United Airlines deal was found by Cheapflights users on 4/24. 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 5/232:10 pm
PIT
- STL
1 stop5h 03m
United Airlines
Mon 5/257:22 am
STL
- PIT
1 stop4h 47m
United Airlines
Deal found 4/24![United Airlines logo]()
$218
This Delta deal was found by Cheapflights users on 4/27. 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 5/261:44 pm
CLE
- ORD
2 stops7h 30m
Delta
Thu 5/288:10 am
ORD
- CLE
1 stop6h 01m
Delta
Deal found 4/27![Delta logo]()
$189
This Southwest deal was found by Cheapflights users on 4/27. 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 5/2312:00 pm
CMH
- MDW
2 stops6h 10m
Southwest
Tue 5/265:00 pm
MDW
- CMH
1 stop4h 20m
Southwest
Deal found 4/27![Southwest logo]()
$223
This United Airlines deal was found by Cheapflights users on 4/23. 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 9/17:00 am
PIT
- ORD
Nonstop1h 42m
United Airlines
Wed 9/22:20 pm
ORD
- PIT
Nonstop1h 44m
United Airlines
Deal found 4/23![United Airlines logo]()
$231
This Delta deal was found by Cheapflights users on 4/24. 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 5/1612:30 pm
DTW
- ORD
Nonstop1h 26m
Delta
Sat 5/165:19 pm
ORD
- DTW
Nonstop1h 25m
Delta
Deal found 4/24![Delta logo]()
$191
This KAYAK deal was found by Cheapflights users on 4/27. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/166:20 am
CAK
- ORD
Nonstop1h 45m
American Airlines
Mon 5/183:09 pm
ORD
- CAK
Nonstop1h 34m
American Airlines
Deal found 4/27![American Airlines logo]()
$310
This Southwest deal was found by Cheapflights users on 4/27. 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 5/266:10 am
DTW
- ORD
1 stop7h 40m
Southwest
Tue 5/262:40 pm
ORD
- DTW
1 stop5h 55m
Southwest
Deal found 4/27![Southwest logo]()
$224
This Delta deal was found by Cheapflights users on 4/24. 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 5/256:19 pm
DTW
- MDW
Nonstop1h 14m
Delta
Mon 6/19:22 am
MDW
- DTW
Nonstop1h 13m
Delta
Deal found 4/24![Delta logo]()
$191
This United Airlines deal was found by Cheapflights users on 4/27. 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 5/2511:01 am
CMH
- ORD
Nonstop1h 33m
United Airlines
Mon 6/19:24 pm
ORD
- CMH
Nonstop1h 35m
United Airlines
Deal found 4/27![United Airlines logo]()
$239
This Delta deal was found by Cheapflights users on 4/26. 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 5/188:16 pm
CVG
- ORD
1 stop4h 43m
Delta
Tue 5/195:30 am
ORD
- CVG
1 stop6h 23m
Delta
Deal found 4/26![Delta logo]()
$194
This United Airlines deal was found by Cheapflights users on 4/27. 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 9/162:05 pm
PIT
- ORD
Nonstop1h 42m
United Airlines
Fri 9/1810:25 am
ORD
- PIT
Nonstop1h 39m
United Airlines
Deal found 4/27![United Airlines logo]()
$240
This Southwest deal was found by Cheapflights users on 4/27. 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 5/285:55 am
PIT
- ORD
1 stop7h 55m
Southwest
Mon 6/12:40 pm
ORD
- PIT
2 stops7h 30m
Southwest
Deal found 4/27![Southwest logo]()
$243
This Delta deal was found by Cheapflights users on 4/27. 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 5/2812:01 pm
PIT
- ORD
1 stop5h 55m
Delta
Mon 6/16:06 pm
ORD
- PIT
1 stop5h 39m
Delta
Deal found 4/27![Delta logo]()
$197
This Southwest deal was found by Cheapflights users on 4/23. 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 9/237:25 pm
CLE
- STL
Nonstop1h 35m
Southwest
Sat 9/2610:45 am
STL
- CLE
Nonstop1h 30m
Southwest
Deal found 4/23![Southwest logo]()
$245
This United Airlines deal was found by Cheapflights users on 4/24. 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 7/249:15 pm
CAK
- ORD
Nonstop1h 53m
United Airlines
Sun 7/266:45 am
ORD
- CAK
Nonstop1h 37m
United Airlines
Deal found 4/24![United Airlines logo]()
$249
This Delta deal was found by Cheapflights users on 4/24. 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 6/410:07 am
PIT
- ORD
1 stop7h 49m
Delta
Mon 6/87:17 pm
ORD
- PIT
1 stop3h 50m
Delta
Deal found 4/24![Delta logo]()
$197
This Southwest deal was found by Cheapflights users on 4/26. 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 5/211:00 pm
DTW
- MDW
Nonstop1h 10m
Southwest
Sun 5/2411:15 am
MDW
- DTW
2 stops5h 40m
Southwest
Deal found 4/26![Southwest logo]()
$248
Last-minute flights from Ohio to IllinoisDiscover last-minute flight deals from Ohio to Illinois. Data last updated April 28, 2026 and is based on user searches.
Discover last-minute flight deals from Ohio to Illinois. Data last updated April 28, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 4/26. 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 5/118:43 am
CLE
- STL
1 stop16h 38m
Frontier
Mon 5/184:19 pm
STL
- CLE
1 stop27h 33m
Frontier
Deal found 4/26![Frontier logo]()
$160
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1212:54 pm
DTW
- ORD
1 stop11h 19m
Frontier
Sat 5/166:55 am
ORD
- DTW
1 stop5h 47m
Frontier
Deal found 4/22![Frontier logo]()
$160
This Frontier deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/126:50 am
DTW
- MDW
1 stop5h 19m
Frontier
Wed 5/2012:04 pm
MDW
- DTW
1 stop11h 35m
Frontier
Deal found 4/27![Frontier logo]()
$160
This Delta deal was found by Cheapflights users on 4/26. 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 5/194:20 pm
CLE
- ORD
1 stop7h 07m
Delta
Wed 5/206:24 am
ORD
- CLE
1 stop5h 30m
Delta
Deal found 4/26![Delta logo]()
$157
This Kiwi.com deal was found by Cheapflights users on 4/24. 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 5/206:00 am
DTW
- MDW
1 stop6h 09m
Frontier
Wed 6/106:00 am
MDW
- DTW
1 stop9h 53m
Frontier
Deal found 4/24![Frontier logo]()
$155
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 5/206:05 pm
DTW
- ORD
1 stop14h 46m
Frontier
Wed 5/271:50 pm
ORD
- DTW
1 stop9h 49m
Frontier
Deal found 4/27![Frontier logo]()
$159
This Kiwi.com deal was found by Cheapflights users on 4/26. 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 5/216:54 am
CLE
- STL
1 stop10h 21m
Frontier
Wed 5/275:27 pm
STL
- CLE
1 stop14h 26m
Frontier
Deal found 4/26![Frontier logo]()
$127
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 5/216:54 am
CLE
- STL
1 stop10h 21m
Frontier
Mon 5/255:27 pm
STL
- CLE
1 stop14h 26m
Frontier
Deal found 4/27![Frontier logo]()
$134
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 5/226:54 am
CLE
- STL
1 stop27h 01m
Frontier
Wed 5/275:27 pm
STL
- CLE
1 stop17h 23m
Frontier
Deal found 4/27![Frontier logo]()
$129
This Kiwi.com deal was found by Cheapflights users on 4/24. 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 5/232:40 pm
DTW
- ORD
1 stop18h 15m
Frontier
Tue 6/96:55 am
ORD
- DTW
1 stop10h 04m
Frontier
Deal found 4/24![Frontier logo]()
$153
This Kiwi.com deal was found by Cheapflights users on 4/26. 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 5/268:49 pm
CLE
- STL
1 stop13h 06m
Frontier
Wed 5/275:27 pm
STL
- CLE
1 stop14h 26m
Frontier
Deal found 4/26![Frontier logo]()
$136
This Frontier deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/268:49 pm
CLE
- ORD
1 stop12h 06m
Frontier
Thu 5/288:05 am
ORD
- CLE
1 stop13h 35m
Frontier
Deal found 4/27![Frontier logo]()
$160
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 April 28, 2026.
Search for one-way flight options from Ohio to Illinois. Find affordable one-way fares based on user searches. Data last updated April 28, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 5/268:49 pm
CLE
- STL
1 stop13h 06m
Frontier
Deal found 4/27![Frontier logo]()
$65
This Trip.com deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/78:46 pm
CLE
- STL
1 stop13h 09m
Frontier
Deal found 4/27![Frontier logo]()
$66
This Trip.com deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/207:24 pm
CLE
- STL
1 stop21h 51m
Frontier
Deal found 4/25![Frontier logo]()
$68
This Southwest deal was found by Cheapflights users on 4/25. 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 6/237:55 pm
CLE
- STL
Nonstop1h 35m
Southwest
Deal found 4/25![Southwest logo]()
$69
This American Airlines deal was found by Cheapflights users on 4/25. 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 6/236:00 am
PIT
- ORD
Nonstop1h 55m
American Airlines
Deal found 4/25![American Airlines logo]()
$69
This Delta deal was found by Cheapflights users on 4/27. 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 5/2612:35 pm
DTW
- ORD
Nonstop1h 26m
Delta
Deal found 4/27![Delta logo]()
$69
This Delta deal was found by Cheapflights users on 4/26. 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 5/198:25 am
DTW
- MDW
Nonstop1h 18m
Delta
Deal found 4/26![Delta logo]()
$69
This Frontier deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/196:05 pm
CMH
- MDW
1 stop4h 57m
Frontier
Deal found 4/23![Frontier logo]()
$70
This Frontier deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/191:31 pm
DTW
- ORD
1 stop7h 20m
Frontier
Deal found 4/27![Frontier logo]()
$70
This Travelocity deal was found by Cheapflights users on 4/26. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/196:50 am
DTW
- MDW
1 stop5h 19m
Frontier
Deal found 4/26![Frontier logo]()
$70
This Expedia deal was found by Cheapflights users on 4/24. 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 5/165:37 pm
CVG
- ORD
1 stop6h 36m
Frontier
Deal found 4/24![Frontier logo]()
$70
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 5/216:54 am
CLE
- STL
1 stop10h 21m
Frontier
Deal found 4/27![Frontier logo]()
$71
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 April 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $127 (Kiwi.com) |
One-way from | $65 (Kiwi.com) |
Popular in | January |
Cheapest in | August |
Average price | $314 |
Good round-trip deal | $278 or less |
Good one-way deal | $183 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 2,558,603 searches. Data last updated April 28, 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
DetroitChicago
DTW - MDW
DTWMDW
Detroit Metropolitan Wayne County
Tue 5/26
8:25 am-8:43 am
Nonstop1h 18m
Chicago Midway
Sat 5/30
9:22 am-11:35 am
Nonstop1h 13m
$164
DetroitChicago
DTW - MDW
DTWMDW
Detroit Metropolitan Wayne County
Wed 5/20
7:40 pm-7:50 pm
Nonstop1h 10m
Chicago Midway
Wed 5/27
1:55 pm-9:15 pm
1 stop6h 20m
$174
ColumbusChicago
CMH - ORD
CMHORD
Columbus
Wed 6/3
4:49 pm-8:26 pm
1 stop4h 37m
Chicago O'Hare Intl
Tue 6/9
7:17 pm-11:59 pm
1 stop3h 42m
$177
DetroitChicago
DTW - ORD
DTWORD
Detroit Metropolitan Wayne County
Tue 5/26
12:35 pm-1:01 pm
Nonstop1h 26m
Chicago O'Hare Intl
Wed 5/27
11:09 am-1:30 pm
Nonstop1h 21m
$177
Quickest round-trip
DetroitChicago
DTW - MDW
DTWMDW
Detroit Metropolitan Wayne County
Tue 5/26
6:19 pm-6:33 pm
Nonstop1h 14m
Chicago Midway
Wed 5/27
1:22 pm-3:35 pm
Nonstop1h 13m
$177
DetroitChicago
DTW - ORD
DTWORD
Detroit Metropolitan Wayne County
Sat 6/6
4:00 pm-4:29 pm
Nonstop1h 29m
Chicago O'Hare Intl
Wed 6/10
11:30 am-1:59 pm
Nonstop1h 29m
$184
ClevelandChicago
CLE - ORD
CLEORD
Cleveland Hopkins Intl
Tue 5/26
1:44 pm-8:14 pm
2 stops7h 30m
Chicago O'Hare Intl
Thu 5/28
8:10 am-3:11 pm
1 stop6h 01m
$189
ClevelandChicago
CLE - ORD
CLEORD
Cleveland Hopkins Intl
Mon 5/25
9:00 am-9:34 am
Nonstop1h 34m
Chicago O'Hare Intl
Mon 6/1
6:00 am-8:29 am
Nonstop1h 29m
$191
DetroitChicago
DTW - ORD
DTWORD
Detroit Metropolitan Wayne County
Sat 5/16
12:30 pm-12:56 pm
Nonstop1h 26m
Chicago O'Hare Intl
Sat 5/16
5:19 pm-7:44 pm
Nonstop1h 25m
$191
DetroitChicago
DTW - MDW
DTWMDW
Detroit Metropolitan Wayne County
Mon 5/25
6:19 pm-6:33 pm
Nonstop1h 14m
Chicago Midway
Mon 6/1
9:22 am-11:35 am
Nonstop1h 13m
$191
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-STL
DTW-ORD
DTW-MDW
CLE-ORD
CVG-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-STL
DTW-ORD
DTW-MDW
CLE-ORD
How far ahead should I book a flight from Ohio to Illinois?
The best time to book flights from Ohio to Illinois is 87 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 month to book a flight from Ohio to Illinois?
Currently, December is the cheapest month in which you can book a flight from Ohio to Illinois (average of $55). Flying from Ohio to Illinois in July is currently the most expensive (average of $620). 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 April 28, 2026.
Unlike at noon, when flights are generally more expensive, you can save up to 25% on flights from Ohio to Illinois by exploring options for tickets in the morning.
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 April 25, 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. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
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 April 28, 2026.
The most flights from USOH to USIL are scheduled on a Monday (75 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (39 on average).
How much does it cost to fly round-trip from Ohio to Illinois?
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 April 28, 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.
Overall
8.0
Comfort
8.0
Boarding
8.1
Crew
8.6
Entertainment
7.5
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Comfort
8.0
Boarding
8.1
Crew
8.6
Entertainment
7.5
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Comfort
8.0
Boarding
8.1
Crew
8.6
Entertainment
7.5
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Comfort
8.0
Boarding
8.1
Crew
8.6
Entertainment
7.5
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Comfort
8.0
Boarding
8.1
Crew
8.6
Entertainment
7.5
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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
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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 April 28, 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 2,558,603 searches. Data last updated April 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$127 | Average$278 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$131 | Average$318 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$137 | Average$291 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$143 | Average$204 | FlexibilityNo cancel fee | On-time62% |