$67+ Cheap flights from Indiana 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 6/9. Fares are subject to change and may not be available on all flights or dates of travel.
IND — ORD
Jun 7 — Jun 141
Round-trip
1 adult, Economy
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Find cheap flights from Indiana 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
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Cheapest flights from Indiana to IllinoisExplore the most affordable flight options available from Indiana to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 8, 2026.
Explore the most affordable flight options available from Indiana to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 8, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/1612:24 pm
CVG
- STL
1 stop6h 06m
Frontier
Wed 6/175:06 pm
STL
- CVG
1 stop17h 08m
Frontier
Deal found 5/7![Frontier logo]()
$121
This Kiwi.com deal was found by Cheapflights users on 5/5. 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.
Thu 6/412:12 pm
CVG
- STL
1 stop6h 21m
Frontier
Thu 6/116:31 pm
STL
- CVG
1 stop16h 18m
Frontier
Deal found 5/5![Frontier logo]()
$124
This Kiwi.com deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/2112:24 pm
CVG
- STL
1 stop21h 28m
Frontier
Wed 6/245:06 pm
STL
- CVG
1 stop17h 08m
Frontier
Deal found 5/4![Frontier logo]()
$126
This Kiwi.com deal was found by Cheapflights users on 5/5. 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.
Wed 8/1212:20 pm
IND
- ORD
1 stop8h 33m
Frontier
Tue 8/181:50 pm
ORD
- IND
1 stop20h 29m
Frontier
Deal found 5/5![Frontier logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2712:14 pm
IND
- ORD
1 stop20h 41m
Frontier
Tue 6/26:55 am
ORD
- IND
1 stop27h 28m
Frontier
Deal found 5/3![Frontier logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 5/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2912:46 pm
CVG
- STL
1 stop21h 09m
Frontier
Mon 6/15:27 pm
STL
- CVG
1 stop16h 37m
Frontier
Deal found 5/7![Frontier logo]()
$150
This United Airlines deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/28:08 pm
IND
- ORD
Nonstop1h 27m
United Airlines
Tue 6/912:58 pm
ORD
- IND
Nonstop1h 16m
United Airlines
Deal found 5/3![United Airlines logo]()
$157
This Southwest deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/35:10 pm
IND
- MDW
Nonstop1h 00m
Southwest
Wed 6/109:20 pm
MDW
- IND
Nonstop1h 05m
Southwest
Deal found 5/4![Southwest logo]()
$157
This Kiwi.com deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/312:14 pm
IND
- ORD
1 stop20h 49m
Frontier
Tue 7/211:50 pm
ORD
- IND
1 stop20h 15m
Frontier
Deal found 5/3![Frontier logo]()
$168
This Kiwi.com deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/112:46 pm
CVG
- STL
2 stops31h 37m
Frontier
Mon 6/85:27 pm
STL
- CVG
1 stop16h 47m
Frontier
Deal found 5/4![Frontier logo]()
$171
This Southwest deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/26:40 am
IND
- MDW
Nonstop0h 55m
Southwest
Tue 6/911:25 am
MDW
- IND
2 stops9h 30m
Southwest
Deal found 5/4![Southwest logo]()
$172
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 6/212:12 pm
CVG
- STL
1 stop6h 21m
Multiple Airlines
Tue 6/96:31 pm
STL
- CVG
2 stops18h 24m
Multiple Airlines
Deal found 5/5![Multiple Airlines logo]()
$173
Best flights from Indiana to IllinoisDiscover carefully curated flight deals from Indiana to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 8, 2026.
Discover carefully curated flight deals from Indiana to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 8, 2026.
This Southwest deal was found by Cheapflights users on 5/5. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/25:10 pm
IND
- MDW
Nonstop1h 00m
Southwest
Tue 6/99:20 pm
MDW
- IND
Nonstop1h 05m
Southwest
Deal found 5/5![Southwest logo]()
$177
This Frontier deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/212:12 pm
CVG
- STL
1 stop6h 21m
Frontier
Thu 6/44:19 pm
STL
- CVG
1 stop6h 19m
Frontier
Deal found 5/3![Frontier logo]()
$180
This Delta deal was found by Cheapflights users on 5/5. 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.
Tue 6/210:35 am
IND
- ORD
1 stop3h 26m
Delta
Tue 6/93:55 pm
ORD
- IND
1 stop7h 22m
Delta
Deal found 5/5![Delta logo]()
$197
This United Airlines deal was found by Cheapflights users on 5/6. 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.
Fri 9/117:45 pm
DAY
- ORD
Nonstop1h 37m
United Airlines
Sun 9/138:45 am
ORD
- DAY
Nonstop1h 18m
United Airlines
Deal found 5/6![United Airlines logo]()
$239
This American Airlines deal was found by Cheapflights users on 5/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/308:20 am
DAY
- ORD
Nonstop1h 42m
American Airlines
Tue 6/27:58 am
ORD
- DAY
1 stop4h 33m
American Airlines
Deal found 5/8![American Airlines logo]()
$259
This Delta deal was found by Cheapflights users on 5/5. 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.
Mon 6/13:00 pm
CVG
- ORD
1 stop6h 26m
Delta
Wed 6/35:30 am
ORD
- CVG
1 stop4h 17m
Delta
Deal found 5/5![Delta logo]()
$204
This Southwest deal was found by Cheapflights users on 5/6. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/61:40 pm
CVG
- MDW
2 stops6h 35m
Southwest
Mon 6/87:05 pm
MDW
- CVG
Nonstop1h 10m
Southwest
Deal found 5/6![Southwest logo]()
$206
This Kiwi.com deal was found by Cheapflights users on 5/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/412:12 pm
CVG
- STL
2 stops12h 45m
Frontier
Thu 6/116:31 pm
STL
- CVG
1 stop16h 18m
Frontier
Deal found 5/7![Frontier logo]()
$212
This Delta deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/310:35 am
IND
- MDW
1 stop3h 07m
Delta
Thu 6/49:22 am
MDW
- IND
1 stop3h 05m
Delta
Deal found 5/3![Delta logo]()
$209
This Southwest deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/107:40 pm
CVG
- MDW
Nonstop1h 10m
Southwest
Sat 6/1312:50 pm
MDW
- CVG
Nonstop1h 10m
Southwest
Deal found 5/3![Southwest logo]()
$215
This United Airlines deal was found by Cheapflights users on 5/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/28:08 pm
IND
- ORD
Nonstop1h 27m
United Airlines
Wed 6/312:58 pm
ORD
- IND
Nonstop1h 16m
United Airlines
Deal found 5/7![United Airlines logo]()
$247
This Kiwi.com deal was found by Cheapflights users on 5/5. 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.
Wed 6/177:15 am
CVG
- STL
1 stop17h 34m
Frontier
Tue 6/236:31 pm
STL
- CVG
1 stop16h 18m
Frontier
Deal found 5/5![Frontier logo]()
$225
This Delta deal was found by Cheapflights users on 5/5. 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.
Thu 5/286:00 pm
CVG
- ORD
1 stop4h 53m
Delta
Mon 6/17:00 am
ORD
- CVG
1 stop5h 27m
Delta
Deal found 5/5![Delta logo]()
$211
This Southwest deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/285:45 am
CVG
- MDW
2 stops8h 25m
Southwest
Mon 6/15:30 am
MDW
- CVG
1 stop5h 20m
Southwest
Deal found 5/3![Southwest logo]()
$216
This United Airlines deal was found by Cheapflights users on 5/6. 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 6/106:00 am
IND
- ORD
Nonstop1h 20m
United Airlines
Fri 6/125:55 pm
ORD
- IND
Nonstop1h 18m
United Airlines
Deal found 5/6![United Airlines logo]()
$247
This Southwest deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/286:50 am
IND
- MDW
Nonstop0h 55m
Southwest
Mon 6/19:45 pm
MDW
- IND
Nonstop1h 10m
Southwest
Deal found 5/3![Southwest logo]()
$221
This American Airlines deal was found by Cheapflights users on 5/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/36:43 am
SDF
- ORD
Nonstop1h 47m
American Airlines
Thu 7/97:27 am
ORD
- SDF
Nonstop1h 36m
American Airlines
Deal found 5/7![American Airlines logo]()
$295
This Frontier deal was found by Cheapflights users on 5/7. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2812:12 pm
CVG
- STL
1 stop6h 21m
Frontier
Mon 6/14:19 pm
STL
- CVG
1 stop6h 19m
Frontier
Deal found 5/7![Frontier logo]()
$244
This United Airlines deal was found by Cheapflights users on 5/5. 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.
Tue 5/266:00 pm
CVG
- ORD
Nonstop1h 38m
United Airlines
Wed 5/276:20 pm
ORD
- CVG
Nonstop1h 33m
United Airlines
Deal found 5/5![United Airlines logo]()
$247
This Delta deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/104:00 pm
CVG
- ORD
2 stops6h 25m
Delta
Sat 6/1311:15 am
ORD
- CVG
1 stop3h 27m
Delta
Deal found 5/3![Delta logo]()
$240
This United Airlines deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/236:10 pm
DAY
- ORD
Nonstop1h 36m
United Airlines
Tue 5/268:40 am
ORD
- DAY
Nonstop1h 24m
United Airlines
Deal found 5/4![United Airlines logo]()
$254
This Delta deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/286:30 am
IND
- MDW
1 stop3h 13m
Delta
Mon 6/16:36 pm
MDW
- IND
1 stop4h 23m
Delta
Deal found 5/3![Delta logo]()
$241
This Southwest deal was found by Cheapflights users on 5/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/117:30 pm
IND
- MDW
1 stop3h 25m
Southwest
Tue 6/169:20 pm
MDW
- IND
Nonstop1h 05m
Southwest
Deal found 5/8![Southwest logo]()
$257
This Delta deal was found by Cheapflights users on 5/5. 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 6/38:10 am
IND
- ORD
1 stop5h 51m
Delta
Wed 6/108:52 am
ORD
- IND
1 stop5h 28m
Delta
Deal found 5/5![Delta logo]()
$248
This United Airlines deal was found by Cheapflights users on 5/6. 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.
Tue 6/27:47 pm
SDF
- ORD
Nonstop1h 43m
United Airlines
Tue 6/94:29 pm
ORD
- SDF
Nonstop1h 31m
United Airlines
Deal found 5/6![United Airlines logo]()
$276
This Southwest deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/295:45 am
CVG
- MDW
2 stops8h 25m
Southwest
Mon 6/15:30 am
MDW
- CVG
1 stop5h 20m
Southwest
Deal found 5/4![Southwest logo]()
$257
This Delta deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/77:00 am
IND
- ORD
1 stop5h 32m
Delta
Tue 8/116:25 am
ORD
- IND
1 stop4h 12m
Delta
Deal found 5/3![Delta logo]()
$257
This Southwest deal was found by Cheapflights users on 5/5. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/48:30 pm
CVG
- MDW
Nonstop1h 10m
Southwest
Sun 6/76:45 pm
MDW
- CVG
Nonstop1h 10m
Southwest
Deal found 5/5![Southwest logo]()
$260
This United Airlines deal was found by Cheapflights users on 5/5. 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 6/44:12 pm
CVG
- ORD
Nonstop1h 39m
United Airlines
Sun 6/710:35 am
ORD
- CVG
Nonstop1h 25m
United Airlines
Deal found 5/5![United Airlines logo]()
$301
This Delta deal was found by Cheapflights users on 5/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/11:59 pm
CVG
- ORD
1 stop5h 36m
Delta
Sat 6/611:09 am
ORD
- CVG
2 stops10h 14m
Delta
Deal found 5/7![Delta logo]()
$260
Last-minute flights from Indiana to IllinoisDiscover last-minute flight deals from Indiana to Illinois. Data last updated May 8, 2026 and is based on user searches.
Discover last-minute flight deals from Indiana to Illinois. Data last updated May 8, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2712:14 pm
IND
- ORD
1 stop20h 41m
Frontier
Tue 6/26:55 am
ORD
- IND
1 stop27h 28m
Frontier
Deal found 5/3![Frontier logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 5/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2912:46 pm
CVG
- STL
1 stop21h 09m
Frontier
Mon 6/15:27 pm
STL
- CVG
1 stop16h 37m
Frontier
Deal found 5/7![Frontier logo]()
$150
This Kiwi.com deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/112:46 pm
CVG
- STL
2 stops31h 37m
Frontier
Mon 6/85:27 pm
STL
- CVG
1 stop16h 47m
Frontier
Deal found 5/4![Frontier logo]()
$171
This United Airlines deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/28:08 pm
IND
- ORD
Nonstop1h 27m
United Airlines
Tue 6/912:58 pm
ORD
- IND
Nonstop1h 16m
United Airlines
Deal found 5/3![United Airlines logo]()
$157
This Southwest deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/26:40 am
IND
- MDW
Nonstop0h 55m
Southwest
Tue 6/911:25 am
MDW
- IND
2 stops9h 30m
Southwest
Deal found 5/4![Southwest logo]()
$172
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 6/212:12 pm
CVG
- STL
1 stop6h 21m
Multiple Airlines
Tue 6/96:31 pm
STL
- CVG
2 stops18h 24m
Multiple Airlines
Deal found 5/5![Multiple Airlines logo]()
$173
This Delta deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/24:49 pm
IND
- ORD
1 stop5h 31m
Delta
Tue 6/93:55 pm
ORD
- IND
1 stop7h 22m
Delta
Deal found 5/3![Delta logo]()
$177
This Frontier deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/212:12 pm
CVG
- STL
1 stop6h 21m
Frontier
Thu 6/44:19 pm
STL
- CVG
1 stop6h 19m
Frontier
Deal found 5/3![Frontier logo]()
$180
This Southwest deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/35:10 pm
IND
- MDW
Nonstop1h 00m
Southwest
Wed 6/109:20 pm
MDW
- IND
Nonstop1h 05m
Southwest
Deal found 5/4![Southwest logo]()
$157
This Kiwi.com deal was found by Cheapflights users on 5/5. 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.
Thu 6/412:12 pm
CVG
- STL
1 stop6h 21m
Frontier
Thu 6/116:31 pm
STL
- CVG
1 stop16h 18m
Frontier
Deal found 5/5![Frontier logo]()
$124
This Kiwi.com deal was found by Cheapflights users on 5/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/1612:24 pm
CVG
- STL
1 stop6h 06m
Frontier
Wed 6/175:06 pm
STL
- CVG
1 stop17h 08m
Frontier
Deal found 5/7![Frontier logo]()
$121
This Kiwi.com deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/2112:24 pm
CVG
- STL
1 stop21h 28m
Frontier
Thu 6/256:31 pm
STL
- CVG
1 stop16h 18m
Frontier
Deal found 5/4![Frontier logo]()
$126
One-way flights from Indiana to IllinoisSearch for one-way flight options from Indiana to Illinois. Find affordable one-way fares based on user searches. Data last updated May 8, 2026.
Search for one-way flight options from Indiana to Illinois. Find affordable one-way fares based on user searches. Data last updated May 8, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/912:24 pm
CVG
- ORD
1 stop20h 39m
Frontier
Deal found 5/7![Frontier logo]()
$67
This Kiwi.com deal was found by Cheapflights users on 5/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/312:04 pm
MDW
- STL
1 stop29h 29m
Frontier
Deal found 5/7![Frontier logo]()
$68
This Kiwi.com deal was found by Cheapflights users on 5/5. 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.
Fri 5/2912:14 pm
IND
- MDW
1 stop10h 48m
Frontier
Deal found 5/5![Frontier logo]()
$69
This Southwest deal was found by Cheapflights users on 5/7. 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.
Wed 6/34:40 pm
MDW
- STL
Nonstop1h 15m
Southwest
Deal found 5/7![Southwest logo]()
$69
This United Airlines deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/1710:40 am
ORD
- STL
Nonstop1h 31m
United Airlines
Deal found 5/4![United Airlines logo]()
$69
This Kiwi.com deal was found by Cheapflights users on 5/5. 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.
Fri 5/2912:46 pm
CVG
- MDW
1 stop10h 16m
Frontier
Deal found 5/5![Frontier logo]()
$69
This Kiwi.com deal was found by Cheapflights users on 5/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/1512:54 pm
CVG
- ORD
1 stop20h 09m
Frontier
Deal found 5/7![Frontier logo]()
$69
This Kiwi.com deal was found by Cheapflights users on 5/5. 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.
Wed 7/112:14 pm
IND
- ORD
1 stop8h 36m
Frontier
Deal found 5/5![Frontier logo]()
$70
This Kiwi.com deal was found by Cheapflights users on 5/5. 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.
Mon 6/112:14 pm
IND
- MDW
1 stop23h 58m
Frontier
Deal found 5/5![Frontier logo]()
$70
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 6/306:00 am
MDW
- STL
1 stop26h 52m
Frontier
Deal found 5/5![Frontier logo]()
$70
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 6/26:55 am
ORD
- STL
1 stop10h 38m
Frontier
Deal found 5/5![Frontier logo]()
$70
This Kiwi.com deal was found by Cheapflights users on 5/6. 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 6/3012:24 pm
CVG
- MDW
1 stop23h 45m
Frontier
Deal found 5/6![Frontier logo]()
$70
Find flight deals from Indiana to Illinois
Keep the following information in mind while searching for Indiana to Illinois flight deals. Data was last updated May 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $121 (Kiwi.com) |
One-way from | $67 (Kiwi.com) |
Popular in | March |
Cheapest in | August |
Average price | $236 |
Good round-trip deal | $339 or less |
Good one-way deal | $193 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Indiana 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 May 8, 2026.
Use the filters below to find and compare flights from Indiana to Illinois that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
IndianapolisChicago
IND - MDW
INDMDW
Indianapolis
Tue 6/2
5:10 pm-5:10 pm
Nonstop1h 00m
Chicago Midway
Tue 6/9
9:20 pm-11:25 pm
Nonstop1h 05m
$177
CincinnatiSt. Louis
CVG - STL
CVGSTL
Cincinnati Cinci./N. Kentucky
Tue 6/2
12:12 pm-5:33 pm
1 stop6h 21m
Lambert-St Louis
Thu 6/4
4:19 pm-11:38 pm
1 stop6h 19m
$180
IndianapolisChicago
IND - ORD
INDORD
Indianapolis
Tue 6/2
10:35 am-1:01 pm
1 stop3h 26m
Chicago O'Hare Intl
Tue 6/9
3:55 pm-12:17 am
1 stop7h 22m
$197
CincinnatiChicago
CVG - ORD
CVGORD
Cincinnati Cinci./N. Kentucky
Mon 6/1
3:00 pm-8:26 pm
1 stop6h 26m
Chicago O'Hare Intl
Wed 6/3
5:30 am-10:47 am
1 stop4h 17m
$204
CincinnatiChicago
CVG - MDW
CVGMDW
Cincinnati Cinci./N. Kentucky
Sat 6/6
1:40 pm-7:15 pm
2 stops6h 35m
Chicago Midway
Mon 6/8
7:05 pm-9:15 pm
Nonstop1h 10m
$206
IndianapolisChicago
IND - MDW
INDMDW
Indianapolis
Wed 6/3
10:35 am-12:42 pm
1 stop3h 07m
Chicago Midway
Thu 6/4
9:22 am-1:27 pm
1 stop3h 05m
$209
CincinnatiChicago
CVG - ORD
CVGORD
Cincinnati Cinci./N. Kentucky
Thu 5/28
6:00 pm-9:53 pm
1 stop4h 53m
Chicago O'Hare Intl
Mon 6/1
7:00 am-1:27 pm
1 stop5h 27m
$211
CincinnatiSt. Louis
CVG - STL
CVGSTL
Cincinnati Cinci./N. Kentucky
Thu 6/4
12:12 pm-11:57 pm
2 stops12h 45m
Lambert-St Louis
Thu 6/11
6:31 pm-11:49 am
1 stop16h 18m
$212
CincinnatiChicago
CVG - MDW
CVGMDW
Cincinnati Cinci./N. Kentucky
Wed 6/10
7:40 pm-7:50 pm
Nonstop1h 10m
Chicago Midway
Sat 6/13
12:50 pm-3:00 pm
Nonstop1h 10m
$215
CincinnatiChicago
CVG - MDW
CVGMDW
Cincinnati Cinci./N. Kentucky
Thu 5/28
5:45 am-1:10 pm
2 stops8h 25m
Chicago Midway
Mon 6/1
5:30 am-11:50 am
1 stop5h 20m
$216
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Indiana to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from Indiana with our price prediction graph.
IND-MDW
CVG-STL
IND-ORD
DAY-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 Indiana to Illinois
USIN-USIL
IND-MDW
CVG-STL
IND-ORD
DAY-ORD
How far ahead should I book a flight from Indiana to Illinois?
To ensure you get the cheapest price possible for a flight from Indiana to Illinois, you should look to book at least 82 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from Indiana to Illinois?
Currently, August is the cheapest month in which you can book a flight from Indiana to Illinois (average of $98). Flying from Indiana to Illinois in November is currently the most expensive (average of $179). 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 IN to IL?
Find hourly flight availability from Indiana 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 May 8, 2026.
Unlike at noon, when flights are generally more expensive, you can save up to 32% on flights from Indiana to Illinois by exploring options for tickets in the morning.
What is the cheapest day to fly from Indiana to Illinois?
Use this chart to determine the cheapest time to fly round-trip from Indiana to Illinois. Price data was last updated on May 2, 2026.
Travelers seeking maximum savings on their Indiana to Illinois flight should consider departing on Tuesday afternoons 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 Indiana to Illinois
Explore weekly flight availability from Indiana 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 May 8, 2026.
The most flights from USIN to USIL are scheduled on a Thursday (93 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (70 on average).
How much does it cost to fly round-trip from Indiana 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 May 8, 2026.
Peruse reviews from past customers who have flown with Southwest,United Airlines, andAmerican Airlines from Indiana to Illinois to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Overall
7.9
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Overall
7.9
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Overall
7.9
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Overall
7.9
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Related info for your journey
Find useful and relevant information for your journey from Indiana to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Indiana 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 Indiana to Illinois by cabin class
Find flights from Indiana to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Indiana and Illinois flights
Browse other Indiana and Illinois flight options. Last updated on May 8, 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 Indiana after your stay in Illinois
Indiana to Illinois flights
Consider these flights traveling from Indiana to Illinois.
Top 3 airlines flying from Indiana to Illinois
Discover the top 3 airlines that operate flights from Indiana 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 May 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$136 | Average$309 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$157 | Average$248 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$192 | Average$337 | FlexibilityNo cancel fee | On-time63% |