$48+ Cheap flights from Kentucky 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 3/13. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — ORD
mar. 16 — mar. 231
1 adult, Economy
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Cheapest flights from Kentucky to IllinoisExplore the most affordable flight options available from Kentucky to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on febrero 14, 2026.
Explore the most affordable flight options available from Kentucky to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on febrero 14, 2026.
This American Airlines deal was found by Cheapflights users on 2/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 3/147:30 am
SDF
- ORD
Nonstop1h 42m
American Airlines
sáb. 3/218:30 am
ORD
- SDF
Nonstop1h 30m
American Airlines
Deal found 2/14![American Airlines logo]()
$103
This Kiwi.com deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” 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.
jue. 5/211:22 pm
TYS
- MDW
Nonstop1h 35m
Allegiant Air
jue. 5/282:47 pm
MDW
- TYS
Nonstop1h 26m
Allegiant Air
Deal found 2/11![Allegiant Air logo]()
$132
This Kiwi.com deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” 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.
jue. 5/211:22 pm
TYS
- MDW
Nonstop1h 35m
Allegiant Air
dom. 5/312:47 pm
MDW
- TYS
Nonstop1h 26m
Allegiant Air
Deal found 2/11![Allegiant Air logo]()
$138
This Kiwi.com deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” 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.
dom. 5/241:22 pm
TYS
- MDW
Nonstop1h 35m
Allegiant Air
jue. 5/282:47 pm
MDW
- TYS
Nonstop1h 26m
Allegiant Air
Deal found 2/11![Allegiant Air logo]()
$139
This American Airlines deal was found by Cheapflights users on 2/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 3/76:10 am
SDF
- ORD
Nonstop1h 42m
American Airlines
mar. 3/102:52 pm
ORD
- SDF
Nonstop1h 26m
American Airlines
Deal found 2/14![American Airlines logo]()
$140
This Kiwi.com deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” 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.
dom. 5/241:22 pm
TYS
- MDW
Nonstop1h 35m
Allegiant Air
dom. 5/312:47 pm
MDW
- TYS
Nonstop1h 26m
Allegiant Air
Deal found 2/11![Allegiant Air logo]()
$145
This American Airlines deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” 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.
jue. 4/309:00 am
SDF
- ORD
Nonstop1h 45m
American Airlines
sáb. 5/26:57 pm
ORD
- SDF
Nonstop1h 33m
American Airlines
Deal found 2/13![American Airlines logo]()
$159
This American Airlines deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” 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.
sáb. 3/77:09 am
SDF
- ORD
Nonstop1h 34m
American Airlines
dom. 3/86:40 am
ORD
- SDF
1 stop7h 24m
American Airlines
Deal found 2/13![American Airlines logo]()
$177
This American Airlines deal was found by Cheapflights users on 2/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 3/316:33 am
SDF
- ORD
Nonstop1h 42m
American Airlines
mar. 4/75:00 am
ORD
- SDF
1 stop6h 45m
American Airlines
Deal found 2/14![American Airlines logo]()
$178
This Priceline deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 4/175:20 pm
CVG
- STL
1 stop6h 59m
Frontier
dom. 4/1911:21 am
STL
- CVG
1 stop6h 15m
Frontier
Deal found 2/13![Frontier logo]()
$181
This American Airlines deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” 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.
vie. 3/276:36 am
CVG
- ORD
Nonstop1h 33m
American Airlines
dom. 3/297:00 am
ORD
- CVG
Nonstop1h 21m
American Airlines
Deal found 2/13![American Airlines logo]()
$187
This American Airlines deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” 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.
dom. 3/2210:27 am
LEX
- ORD
Nonstop1h 35m
American Airlines
sáb. 3/287:00 am
ORD
- LEX
Nonstop1h 24m
American Airlines
Deal found 2/11![American Airlines logo]()
$189
Best flights from Kentucky to IllinoisDiscover carefully curated flight deals from Kentucky to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated febrero 14, 2026.
Discover carefully curated flight deals from Kentucky to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated febrero 14, 2026.
This United Airlines deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 3/109:00 am
SDF
- ORD
Nonstop1h 44m
United Airlines
mié. 3/117:40 pm
ORD
- SDF
Nonstop1h 33m
United Airlines
Deal found 2/10![United Airlines logo]()
$177
This American Airlines deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” 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.
vie. 5/16:00 am
SDF
- ORD
Nonstop1h 40m
American Airlines
sáb. 5/27:15 am
ORD
- SDF
1 stop7h 23m
American Airlines
Deal found 2/13![American Airlines logo]()
$177
This Delta deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” 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.
mié. 3/115:53 am
CVG
- ORD
2 stops8h 24m
Delta
mié. 3/186:15 am
ORD
- CVG
2 stops6h 16m
Delta
Deal found 2/11![Delta logo]()
$187
This Southwest deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” 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.
sáb. 3/77:25 pm
CVG
- MDW
1 stop5h 40m
Southwest
lun. 3/94:05 pm
MDW
- CVG
1 stop5h 30m
Southwest
Deal found 2/13![Southwest logo]()
$191
This Expedia deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” 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.
dom. 3/297:20 am
CVG
- STL
1 stop27h 29m
Frontier
mar. 3/3111:27 am
STL
- CVG
1 stop9h 28m
Frontier
Deal found 2/11![Frontier logo]()
$195
This Booking.com deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 3/210:50 am
BNA
- ORD
1 stop12h 25m
Multiple Airlines
mar. 3/312:44 pm
ORD
- BNA
1 stop7h 13m
Multiple Airlines
Deal found 2/10![Multiple Airlines logo]()
$202
This United Airlines deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” 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.
mar. 3/179:00 am
SDF
- ORD
Nonstop1h 44m
United Airlines
mar. 3/245:50 pm
ORD
- SDF
Nonstop1h 24m
United Airlines
Deal found 2/12![United Airlines logo]()
$177
This American Airlines deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 3/246:12 pm
SDF
- ORD
Nonstop1h 48m
American Airlines
mié. 3/258:50 pm
ORD
- SDF
Nonstop1h 30m
American Airlines
Deal found 2/10![American Airlines logo]()
$177
This Delta deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 3/163:00 pm
CVG
- MDW
1 stop3h 54m
Delta
mar. 3/172:05 pm
MDW
- CVG
2 stops7h 32m
Delta
Deal found 2/10![Delta logo]()
$189
This Southwest deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” 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.
jue. 3/56:35 am
CVG
- MDW
1 stop3h 45m
Southwest
lun. 3/94:05 pm
MDW
- CVG
1 stop5h 30m
Southwest
Deal found 2/11![Southwest logo]()
$191
This American Airlines deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” 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.
jue. 4/306:00 am
SDF
- ORD
Nonstop1h 40m
American Airlines
sáb. 5/25:00 am
ORD
- SDF
1 stop6h 45m
American Airlines
Deal found 2/13![American Airlines logo]()
$177
This United Airlines deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” 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.
mar. 7/147:00 am
LEX
- ORD
Nonstop1h 50m
United Airlines
mar. 7/219:15 pm
ORD
- LEX
Nonstop1h 39m
United Airlines
Deal found 2/13![United Airlines logo]()
$189
This Delta deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” 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.
mié. 3/46:00 am
CVG
- ORD
2 stops8h 20m
Delta
lun. 3/95:40 pm
ORD
- CVG
1 stop3h 57m
Delta
Deal found 2/11![Delta logo]()
$189
This Southwest deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” 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.
jue. 4/96:50 pm
CVG
- MDW
1 stop5h 40m
Southwest
lun. 4/135:50 pm
MDW
- CVG
1 stop4h 35m
Southwest
Deal found 2/11![Southwest logo]()
$191
This Trip.com deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 3/59:00 am
BNA
- MDW
1 stop28h 08m
Frontier
sáb. 3/72:56 pm
MDW
- BNA
1 stop18h 45m
Frontier
Deal found 2/10![Frontier logo]()
$211
This United Airlines deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” 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.
jue. 5/77:00 am
LEX
- ORD
Nonstop1h 50m
United Airlines
dom. 5/109:20 pm
ORD
- LEX
Nonstop1h 29m
United Airlines
Deal found 2/13![United Airlines logo]()
$189
This American Airlines deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 3/2710:27 am
LEX
- ORD
Nonstop1h 35m
American Airlines
dom. 3/298:49 pm
ORD
- LEX
Nonstop1h 27m
American Airlines
Deal found 2/10![American Airlines logo]()
$189
This Delta deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” 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.
mar. 4/285:35 am
CVG
- ORD
2 stops8h 10m
Delta
jue. 4/307:00 am
ORD
- CVG
1 stop6h 16m
Delta
Deal found 2/11![Delta logo]()
$189
This Kiwi.com deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” 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.
mié. 4/151:23 pm
CVG
- STL
1 stop10h 56m
Multiple Airlines
vie. 4/178:13 pm
STL
- CVG
1 stop21h 23m
Multiple Airlines
Deal found 2/13![Multiple Airlines logo]()
$237
This Southwest deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” 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.
mar. 4/76:50 am
BNA
- MDW
Nonstop1h 35m
Southwest
mar. 4/79:50 am
MDW
- BNA
Nonstop1h 25m
Southwest
Deal found 2/11![Southwest logo]()
$197
This United Airlines deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” 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.
mié. 4/159:00 pm
LEX
- ORD
Nonstop1h 47m
United Airlines
dom. 4/199:15 pm
ORD
- LEX
Nonstop1h 30m
United Airlines
Deal found 2/13![United Airlines logo]()
$189
This American Airlines deal was found by Cheapflights users on 2/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 3/2210:27 am
LEX
- ORD
Nonstop1h 35m
American Airlines
sáb. 3/287:00 am
ORD
- LEX
Nonstop1h 24m
American Airlines
Deal found 2/14![American Airlines logo]()
$189
This Delta deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” 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.
jue. 3/56:00 am
CVG
- MDW
1 stop4h 54m
Delta
lun. 3/96:34 pm
MDW
- CVG
1 stop3h 03m
Delta
Deal found 2/11![Delta logo]()
$191
This Kiwi.com deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” 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.
dom. 4/197:43 pm
CVG
- STL
1 stop12h 07m
Frontier
mié. 4/228:13 pm
STL
- CVG
1 stop21h 23m
Frontier
Deal found 2/12![Frontier logo]()
$235
This Southwest deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” 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.
mar. 4/78:40 pm
BNA
- MDW
Nonstop1h 35m
Southwest
mié. 4/83:00 pm
MDW
- BNA
Nonstop1h 30m
Southwest
Deal found 2/11![Southwest logo]()
$197
This United Airlines deal was found by Cheapflights users on 2/14. 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.
vie. 5/157:00 am
LEX
- ORD
Nonstop1h 50m
United Airlines
lun. 5/185:45 pm
ORD
- LEX
Nonstop1h 29m
United Airlines
Deal found 2/14![United Airlines logo]()
$189
This Delta deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” 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.
jue. 4/96:00 am
CVG
- MDW
1 stop3h 53m
Delta
lun. 4/135:21 pm
MDW
- CVG
1 stop5h 50m
Delta
Deal found 2/11![Delta logo]()
$191
This American Airlines deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” 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.
jue. 3/55:39 am
CVG
- ORD
1 stop5h 33m
American Airlines
dom. 3/87:00 am
ORD
- CVG
Nonstop1h 21m
American Airlines
Deal found 2/13![American Airlines logo]()
$193
This Southwest deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 4/84:15 pm
BNA
- ORD
1 stop5h 40m
Southwest
sáb. 4/111:55 pm
ORD
- BNA
Nonstop1h 45m
Southwest
Deal found 2/10![Southwest logo]()
$201
This United Airlines deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” 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.
dom. 3/87:00 am
LEX
- ORD
Nonstop1h 44m
United Airlines
vie. 3/209:20 pm
ORD
- LEX
Nonstop1h 24m
United Airlines
Deal found 2/13![United Airlines logo]()
$189
Last-minute flights from Kentucky to IllinoisDiscover last-minute flight deals from Kentucky to Illinois. Data last updated febrero 14, 2026 and is based on user searches.
Discover last-minute flight deals from Kentucky to Illinois. Data last updated febrero 14, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” 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.
jue. 2/261:07 pm
CVG
- ORD
2 stops11h 40m
Multiple Airlines
sáb. 2/285:05 am
ORD
- CVG
1 stop17h 28m
Multiple Airlines
Deal found 2/11![Multiple Airlines logo]()
$189
This CheapOair deal was found by Cheapflights users on 2/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 2/278:49 pm
CVG
- ORD
1 stop14h 49m
Frontier
dom. 3/13:40 pm
ORD
- CVG
1 stop18h 55m
Frontier
Deal found 2/14![Frontier logo]()
$192
This CheapOair deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” 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.
vie. 2/278:30 am
BNA
- ORD
1 stop12h 43m
Spirit Airlines
dom. 3/812:44 pm
ORD
- BNA
1 stop7h 13m
Spirit Airlines
Deal found 2/11![Spirit Airlines logo]()
$193
This Delta deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” 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.
mié. 3/48:05 am
CVG
- MDW
2 stops11h 35m
Delta
lun. 3/99:35 am
MDW
- CVG
1 stop2h 56m
Delta
Deal found 2/11![Delta logo]()
$189
This Delta deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” 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.
jue. 3/58:05 am
CVG
- MDW
1 stop5h 41m
Delta
lun. 3/96:34 pm
MDW
- CVG
1 stop3h 03m
Delta
Deal found 2/11![Delta logo]()
$191
This Delta deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” 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.
jue. 3/56:04 pm
CVG
- ORD
1 stop4h 26m
Delta
lun. 3/97:10 am
ORD
- CVG
1 stop5h 21m
Delta
Deal found 2/11![Delta logo]()
$191
This American Airlines deal was found by Cheapflights users on 2/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 3/76:10 am
SDF
- ORD
Nonstop1h 42m
American Airlines
mar. 3/102:52 pm
ORD
- SDF
Nonstop1h 26m
American Airlines
Deal found 2/14![American Airlines logo]()
$140
This American Airlines deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” 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.
sáb. 3/77:09 am
SDF
- ORD
Nonstop1h 34m
American Airlines
dom. 3/86:40 am
ORD
- SDF
1 stop7h 24m
American Airlines
Deal found 2/13![American Airlines logo]()
$177
This American Airlines deal was found by Cheapflights users on 2/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 3/147:30 am
SDF
- ORD
Nonstop1h 42m
American Airlines
sáb. 3/218:30 am
ORD
- SDF
Nonstop1h 30m
American Airlines
Deal found 2/14![American Airlines logo]()
$103
This American Airlines deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” 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.
dom. 3/2210:27 am
LEX
- ORD
Nonstop1h 35m
American Airlines
sáb. 3/287:00 am
ORD
- LEX
Nonstop1h 24m
American Airlines
Deal found 2/11![American Airlines logo]()
$189
This American Airlines deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” 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.
vie. 3/276:36 am
CVG
- ORD
Nonstop1h 33m
American Airlines
dom. 3/297:00 am
ORD
- CVG
Nonstop1h 21m
American Airlines
Deal found 2/12![American Airlines logo]()
$187
This American Airlines deal was found by Cheapflights users on 2/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 3/316:33 am
SDF
- ORD
Nonstop1h 42m
American Airlines
mar. 4/75:00 am
ORD
- SDF
1 stop6h 45m
American Airlines
Deal found 2/14![American Airlines logo]()
$178
One-way flights from Kentucky to IllinoisSearch for one-way flight options from Kentucky to Illinois. Find affordable one-way fares based on user searches. Data last updated febrero 14, 2026.
Search for one-way flight options from Kentucky to Illinois. Find affordable one-way fares based on user searches. Data last updated febrero 14, 2026.
This American Airlines deal was found by Cheapflights users on 2/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 3/135:00 am
CVG
- ORD
Nonstop1h 31m
American Airlines
Deal found 2/14![American Airlines logo]()
$48
This American Airlines deal was found by Cheapflights users on 2/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 4/56:33 am
SDF
- ORD
Nonstop1h 42m
American Airlines
Deal found 2/14![American Airlines logo]()
$52
This American Airlines deal was found by Cheapflights users on 2/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 3/256:33 am
SDF
- ORD
Nonstop1h 42m
American Airlines
Deal found 2/14![American Airlines logo]()
$53
This United Airlines deal was found by Cheapflights users on 2/14. 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.
sáb. 3/217:03 am
CVG
- ORD
Nonstop1h 32m
United Airlines
Deal found 2/14![United Airlines logo]()
$56
This United Airlines deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” 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.
sáb. 3/219:00 am
SDF
- ORD
Nonstop1h 44m
United Airlines
Deal found 2/13![United Airlines logo]()
$62
This American Airlines deal was found by Cheapflights users on 2/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 5/35:00 am
CVG
- ORD
Nonstop1h 33m
American Airlines
Deal found 2/14![American Airlines logo]()
$68
This Booking.com deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” 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.
mar. 3/33:20 pm
CVG
- ORD
1 stop25h 32m
Frontier
Deal found 2/11![Frontier logo]()
$70
This Kiwi.com deal was found by Cheapflights users on 2/14. 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.
mar. 3/177:41 pm
CVG
- STL
1 stop15h 56m
Frontier
Deal found 2/14![Frontier logo]()
$71
This Kiwi.com deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” 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.
dom. 2/221:07 pm
CVG
- STL
1 stop18h 44m
Frontier
Deal found 2/11![Frontier logo]()
$72
This American Airlines deal was found by Cheapflights users on 2/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 5/176:00 am
SDF
- ORD
Nonstop1h 40m
American Airlines
Deal found 2/14![American Airlines logo]()
$72
This Trip.com deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” 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.
vie. 2/271:07 pm
CVG
- STL
1 stop18h 44m
Frontier
Deal found 2/11![Frontier logo]()
$73
This Expedia deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” 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.
mié. 3/43:20 pm
CVG
- STL
1 stop8h 07m
Frontier
Deal found 2/11![Frontier logo]()
$74
Find flight deals from Kentucky to Illinois
Keep the following information in mind while searching for Kentucky to Illinois flight deals. Data was last updated febrero 14, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $103 (American Airlines) |
One-way from | $48 (American Airlines) |
Popular in | January |
Cheapest in | November |
Average price | $295 |
Good round-trip deal | $106 or less |
Good one-way deal | $190 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Kentucky 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 febrero 14, 2026.
Use the filters below to find and compare flights from Kentucky to Illinois that are best for you.
Fly from
Kentucky
Fly to
Illinois
Route
Depart
Return
Price
LouisvilleChicago
SDF - ORD
SDFORD
Louisville Intl
mar. 3/10
9:00 am-9:44 am
Nonstop1h 44m
Chicago O'Hare Intl
mié. 3/11
7:40 pm-10:13 pm
Nonstop1h 33m
$177
LouisvilleChicago
SDF - ORD
SDFORD
Louisville Intl
vie. 5/1
6:00 am-6:40 am
Nonstop1h 40m
Chicago O'Hare Intl
sáb. 5/2
7:15 am-3:38 pm
1 stop7h 23m
$177
LouisvilleChicago
SDF - ORD
SDFORD
Louisville Intl
mar. 3/17
9:00 am-9:44 am
Nonstop1h 44m
Chicago O'Hare Intl
mar. 3/24
5:50 pm-8:14 pm
Nonstop1h 24m
$177
LouisvilleChicago
SDF - ORD
SDFORD
Louisville Intl
mar. 3/24
6:12 pm-7:00 pm
Nonstop1h 48m
Chicago O'Hare Intl
mié. 3/25
8:50 pm-11:20 pm
Nonstop1h 30m
$177
LouisvilleChicago
SDF - ORD
SDFORD
Louisville Intl
jue. 4/30
6:00 am-6:40 am
Nonstop1h 40m
Chicago O'Hare Intl
sáb. 5/2
5:00 am-12:45 pm
1 stop6h 45m
$177
CincinnatiChicago
CVG - ORD
CVGORD
Cincinnati Cinci./N. Kentucky
mié. 3/11
5:53 am-1:17 pm
2 stops8h 24m
Chicago O'Hare Intl
mié. 3/18
6:15 am-1:31 pm
2 stops6h 16m
$187
CincinnatiChicago
CVG - MDW
CVGMDW
Cincinnati Cinci./N. Kentucky
lun. 3/16
3:00 pm-5:54 pm
1 stop3h 54m
Chicago Midway
mar. 3/17
2:05 pm-10:37 pm
2 stops7h 32m
$189
LexingtonChicago
LEX - ORD
LEXORD
Lexington Blue Grass
mar. 7/14
7:00 am-7:50 am
Nonstop1h 50m
Chicago O'Hare Intl
mar. 7/21
9:15 pm-11:54 pm
Nonstop1h 39m
$189
CincinnatiChicago
CVG - ORD
CVGORD
Cincinnati Cinci./N. Kentucky
mié. 3/4
6:00 am-1:20 pm
2 stops8h 20m
Chicago O'Hare Intl
lun. 3/9
5:40 pm-10:37 pm
1 stop3h 57m
$189
LexingtonChicago
LEX - ORD
LEXORD
Lexington Blue Grass
jue. 5/7
7:00 am-7:50 am
Nonstop1h 50m
Chicago O'Hare Intl
dom. 5/10
9:20 pm-11:49 pm
Nonstop1h 29m
$189
Showing 1-10 of 60 results
Best time to book a flight from Kentucky to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from Kentucky with our price prediction graph.
SDF-ORD
CVG-ORD
CVG-MDW
CVG-STL
BNA-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 Kentucky to Illinois
USKY-USIL
SDF-ORD
CVG-ORD
CVG-MDW
CVG-STL
What is the cheapest month to book a flight from Kentucky to Illinois?
Currently, September is the cheapest month in which you can book a flight from Kentucky to Illinois (average of $77). Flying from Kentucky to Illinois in July is currently the most expensive (average of $139). 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 KY to IL?
Find hourly flight availability from Kentucky 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 febrero 14, 2026.
A simple way to save on the total cost of your ticket is to fly from Kentucky to Illinois in the morning. If you’re flexible enough to do this you can expect to save up to 34% on your trip compared to booking a flight at noon.
What is the cheapest day to fly from Kentucky to Illinois?
Use this chart to determine the cheapest time to fly round-trip from Kentucky to Illinois. Price data was last updated on February 7, 2026.
Travelers seeking maximum savings on their Kentucky to Illinois flight should consider departing on Saturday at noon when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Kentucky to Illinois
Explore weekly flight availability from Kentucky 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 febrero 14, 2026.
The most flights from USKY to USIL are scheduled on a Friday (35 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (31 on average).
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 febrero 14, 2026.
Read through reviews of airlines operating flights from Kentucky to Illinois, such as Southwest, Contour, and United Airlines. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Entertainment
7.5
Overall
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Comfort
8.0
Entertainment
7.5
Overall
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Comfort
8.0
Entertainment
7.5
Overall
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Comfort
8.0
Entertainment
7.5
Overall
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Comfort
8.0
Entertainment
7.5
Overall
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Related info for your journey
Find useful and relevant information for your journey from Kentucky 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 Kentucky 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 Kentucky to Illinois by cabin class
Find flights from Kentucky to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Kentucky and Illinois flights
Browse other Kentucky and Illinois flight options. Last updated on febrero 14, 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 Kentucky after your stay in Illinois
Kentucky to Illinois flights
Consider these flights traveling from Kentucky to Illinois.
Top 4 airlines flying from Kentucky to Illinois
Discover the top 4 airlines that operate flights from Kentucky 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 febrero 14, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$97 | Average$271 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$97 | Average$268 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$97 | Average$257 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$108 | Average$163 | FlexibilityNo cancel fee | On-timeN/A |