$52+ Cheap flights from Illinois to Kentucky
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 8/6. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SDF
Jun 3 — Jun 101
Round-trip
1 adult, Economy
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Find cheap flights from Illinois to Kentucky with Cheapflights
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Cheapest flights from Illinois to KentuckyExplore the most affordable flight options available from Illinois to Kentucky. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 4, 2026.
Explore the most affordable flight options available from Illinois to Kentucky. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 4, 2026.
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.
Tue 6/26:40 pm
STL
- BNA
Nonstop1h 10m
Southwest
Tue 6/99:45 pm
BNA
- STL
Nonstop1h 15m
Southwest
Deal found 5/3![Southwest logo]()
$137
This Kiwi.com deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” 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 7/162:48 pm
MDW
- TYS
Nonstop1h 30m
Allegiant Air
Sun 7/191:22 pm
TYS
- MDW
Nonstop1h 36m
Allegiant Air
Deal found 4/30![Allegiant Air logo]()
$137
This Cheapflightsfares deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/22:24 pm
MDW
- TYS
Nonstop1h 25m
Allegiant Air
Fri 10/911:14 am
TYS
- MDW
Nonstop1h 32m
Allegiant Air
Deal found 5/2![Allegiant Air logo]()
$139
This Cheapflightsfares deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/92:48 pm
MDW
- TYS
Nonstop1h 30m
Allegiant Air
Sun 7/121:22 pm
TYS
- MDW
Nonstop1h 36m
Allegiant Air
Deal found 4/29![Allegiant Air logo]()
$140
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.
Mon 10/121:26 pm
MDW
- TYS
Nonstop1h 25m
Allegiant Air
Fri 10/163:08 pm
TYS
- MDW
Nonstop1h 32m
Allegiant Air
Deal found 5/3![Allegiant Air logo]()
$147
This Cheapflightsfares deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/212:47 pm
MDW
- TYS
Nonstop1h 26m
Allegiant Air
Sun 5/241:22 pm
TYS
- MDW
Nonstop1h 35m
Allegiant Air
Deal found 5/2![Allegiant Air logo]()
$148
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/182:46 pm
MDW
- TYS
Nonstop1h 28m
Allegiant Air
Sun 6/211:22 pm
TYS
- MDW
Nonstop1h 34m
Allegiant Air
Deal found 5/3![Allegiant Air logo]()
$163
This Southwest deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” 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 6/18:45 pm
STL
- BNA
Nonstop1h 10m
Southwest
Tue 6/26:25 am
BNA
- STL
Nonstop1h 20m
Southwest
Deal found 4/29![Southwest logo]()
$164
This Kissandfly.com deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/282:00 pm
STL
- BNA
1 stop4h 03m
Southern / Mokulele
Mon 6/12:35 pm
BNA
- STL
1 stop4h 01m
Southern / Mokulele
Deal found 5/2![Southern / Mokulele logo]()
$170
This Kiwi.com deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” 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 5/282:47 pm
MDW
- TYS
Nonstop1h 26m
Multiple Airlines
Mon 6/112:55 pm
TYS
- MDW
2 stops23h 17m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$171
This Trip.com deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” 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.
Fri 5/154:19 pm
STL
- BNA
1 stop23h 58m
Multiple Airlines
Sun 5/172:35 pm
BNA
- STL
1 stop4h 01m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$172
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.
Mon 5/259:30 pm
MDW
- TYS
1 stop21h 01m
Allegiant Air
Thu 5/281:22 pm
TYS
- MDW
Nonstop1h 35m
Allegiant Air
Deal found 5/3![Allegiant Air logo]()
$172
Best flights from Illinois to KentuckyDiscover carefully curated flight deals from Illinois to Kentucky that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 4, 2026.
Discover carefully curated flight deals from Illinois to Kentucky that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 4, 2026.
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.
Tue 6/26:40 pm
STL
- BNA
Nonstop1h 10m
Southwest
Tue 6/910:10 am
BNA
- STL
2 stops5h 35m
Southwest
Deal found 5/3![Southwest logo]()
$152
This Delta deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” 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 6/19:25 am
ORD
- CVG
1 stop4h 49m
Delta
Wed 6/35:48 am
CVG
- ORD
1 stop5h 28m
Delta
Deal found 4/29![Delta logo]()
$194
This Southern / Mokulele 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 Southern / Mokulele is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/287:20 pm
STL
- BNA
1 stop13h 43m
Southern / Mokulele
Sun 5/312:35 pm
BNA
- STL
1 stop4h 01m
Southern / Mokulele
Deal found 5/3![Southern / Mokulele logo]()
$212
This United Airlines deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” 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 6/46:55 am
ORD
- TYS
Nonstop1h 48m
United Airlines
Thu 6/256:00 am
TYS
- ORD
Nonstop1h 59m
United Airlines
Deal found 5/2![United Airlines logo]()
$249
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/228:59 pm
ORD
- LEX
Nonstop1h 34m
American Airlines
Mon 5/256:52 pm
LEX
- ORD
Nonstop1h 53m
American Airlines
Deal found 5/3![American Airlines logo]()
$264
This Southwest deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” 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 6/18:45 pm
STL
- BNA
Nonstop1h 10m
Southwest
Tue 6/26:25 am
BNA
- STL
Nonstop1h 20m
Southwest
Deal found 4/29![Southwest logo]()
$164
This Sun Country Air deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/17:45 pm
ORD
- BNA
1 stop22h 26m
Sun Country Air
Sun 10/49:13 pm
BNA
- ORD
1 stop13h 25m
Sun Country Air
Deal found 5/1![Sun Country Air logo]()
$355
This Southwest deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 6/82:30 pm
STL
- BNA
Nonstop1h 10m
Southwest
Wed 6/106:25 am
BNA
- STL
Nonstop1h 20m
Southwest
Deal found 5/1![Southwest logo]()
$191
This Delta deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” 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 5/219:25 am
ORD
- CVG
1 stop4h 49m
Delta
Sat 5/236:00 pm
CVG
- ORD
1 stop3h 14m
Delta
Deal found 4/29![Delta logo]()
$211
This Southern / Mokulele deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southern / Mokulele is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/227:20 pm
STL
- BNA
1 stop13h 43m
Southern / Mokulele
Mon 5/252:35 pm
BNA
- STL
1 stop4h 01m
Southern / Mokulele
Deal found 4/29![Southern / Mokulele logo]()
$212
This Southern / Mokulele 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 Southern / Mokulele is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/117:20 pm
STL
- BNA
1 stop13h 43m
Southern / Mokulele
Sun 6/142:35 pm
BNA
- STL
1 stop4h 01m
Southern / Mokulele
Deal found 5/3![Southern / Mokulele logo]()
$212
This United Airlines deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 6/106:07 pm
ORD
- TYS
Nonstop1h 49m
United Airlines
Mon 6/156:00 am
TYS
- ORD
Nonstop1h 59m
United Airlines
Deal found 5/1![United Airlines logo]()
$249
This United Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” 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 6/24:32 pm
ORD
- LEX
Nonstop1h 37m
United Airlines
Tue 6/95:15 am
LEX
- ORD
Nonstop1h 50m
United Airlines
Deal found 4/30![United Airlines logo]()
$249
This Delta deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” 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.
Fri 5/297:07 am
ORD
- CVG
1 stop4h 46m
Delta
Sat 5/302:07 pm
CVG
- ORD
2 stops8h 13m
Delta
Deal found 5/2![Delta logo]()
$257
This Southwest deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” 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 5/215:30 am
MDW
- CVG
1 stop5h 20m
Southwest
Mon 5/258:20 pm
CVG
- MDW
Nonstop1h 10m
Southwest
Deal found 4/30![Southwest logo]()
$236
This United Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” 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 8/287:45 am
ORD
- LEX
Nonstop1h 38m
United Airlines
Sun 8/307:00 am
LEX
- ORD
Nonstop1h 44m
United Airlines
Deal found 4/29![United Airlines logo]()
$249
This KAYAK deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” 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 5/266:00 am
ORD
- BNA
1 stop5h 50m
American Airlines
Fri 5/295:50 pm
BNA
- ORD
Nonstop2h 09m
American Airlines
Deal found 4/30![American Airlines logo]()
$313
This Delta deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” 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.
Fri 5/296:23 am
MDW
- LEX
1 stop4h 56m
Delta
Mon 6/18:04 am
LEX
- MDW
1 stop5h 38m
Delta
Deal found 4/30![Delta logo]()
$269
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.
Tue 6/29:25 am
MDW
- TYS
1 stop6h 45m
Southwest
Tue 6/96:55 pm
TYS
- MDW
1 stop3h 15m
Southwest
Deal found 5/3![Southwest logo]()
$249
This United Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” 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 5/296:07 pm
ORD
- TYS
Nonstop1h 49m
United Airlines
Mon 6/16:30 am
TYS
- ORD
Nonstop1h 59m
United Airlines
Deal found 4/30![United Airlines logo]()
$261
This KAYAK deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” 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.
Thu 6/118:29 am
ORD
- BNA
Nonstop1h 42m
American Airlines
Fri 6/129:04 am
BNA
- ORD
Nonstop1h 56m
American Airlines
Deal found 4/29![American Airlines logo]()
$316
This Delta deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” 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.
Fri 7/175:10 pm
MDW
- LEX
1 stop5h 45m
Delta
Sun 7/196:00 am
LEX
- MDW
1 stop5h 05m
Delta
Deal found 4/29![Delta logo]()
$269
This Southwest deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” 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 5/279:25 am
MDW
- TYS
1 stop6h 45m
Southwest
Wed 6/312:50 pm
TYS
- MDW
2 stops8h 10m
Southwest
Deal found 4/29![Southwest logo]()
$254
This Southern / Mokulele deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southern / Mokulele is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/147:20 pm
STL
- BNA
1 stop13h 43m
Southern / Mokulele
Mon 5/182:35 pm
BNA
- STL
1 stop4h 01m
Southern / Mokulele
Deal found 4/29![Southern / Mokulele logo]()
$312
This Delta deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” 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 6/25:15 pm
MDW
- LEX
1 stop5h 44m
Delta
Tue 6/91:04 pm
LEX
- MDW
1 stop4h 12m
Delta
Deal found 4/29![Delta logo]()
$269
This United Airlines deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 6/29:14 am
STL
- BNA
1 stop5h 00m
United Airlines
Wed 6/39:47 am
BNA
- STL
1 stop5h 59m
United Airlines
Deal found 5/1![United Airlines logo]()
$271
This Southwest deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 5/2610:15 am
MDW
- TYS
2 stops9h 35m
Southwest
Tue 6/212:50 pm
TYS
- MDW
2 stops7h 55m
Southwest
Deal found 5/1![Southwest logo]()
$259
This KAYAK deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 5/263:02 pm
ORD
- SDF
1 stop7h 17m
American Airlines
Fri 5/292:46 pm
SDF
- ORD
Nonstop1h 45m
American Airlines
Deal found 5/1![American Airlines logo]()
$346
This Delta deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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.
Fri 7/178:03 am
ORD
- TYS
1 stop5h 45m
Delta
Tue 7/213:59 pm
TYS
- ORD
1 stop5h 32m
Delta
Deal found 5/1![Delta logo]()
$269
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.
Thu 5/282:15 pm
ORD
- SDF
Nonstop1h 34m
United Airlines
Sat 5/302:10 pm
SDF
- ORD
Nonstop1h 40m
United Airlines
Deal found 5/3![United Airlines logo]()
$281
Last-minute flights from Illinois to KentuckyDiscover last-minute flight deals from Illinois to Kentucky. Data last updated May 4, 2026 and is based on user searches.
Discover last-minute flight deals from Illinois to Kentucky. Data last updated May 4, 2026 and is based on user searches.
This Trip.com deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” 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.
Fri 5/154:19 pm
STL
- BNA
1 stop23h 58m
Multiple Airlines
Sun 5/172:35 pm
BNA
- STL
1 stop4h 01m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$172
This CheapOair deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” 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.
Fri 5/154:19 pm
STL
- BNA
1 stop23h 58m
Multiple Airlines
Mon 5/182:35 pm
BNA
- STL
1 stop4h 01m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$184
This Cheapflightsfares deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/212:47 pm
MDW
- TYS
Nonstop1h 26m
Allegiant Air
Sun 5/241:22 pm
TYS
- MDW
Nonstop1h 35m
Allegiant Air
Deal found 5/2![Allegiant Air logo]()
$148
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.
Mon 5/259:30 pm
MDW
- TYS
1 stop21h 01m
Allegiant Air
Thu 5/281:22 pm
TYS
- MDW
Nonstop1h 35m
Allegiant Air
Deal found 5/3![Allegiant Air logo]()
$172
This Kissandfly.com deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/282:00 pm
STL
- BNA
1 stop4h 03m
Southern / Mokulele
Mon 6/12:35 pm
BNA
- STL
1 stop4h 01m
Southern / Mokulele
Deal found 5/2![Southern / Mokulele logo]()
$170
This Kiwi.com deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” 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 5/282:47 pm
MDW
- TYS
Nonstop1h 26m
Multiple Airlines
Mon 6/112:55 pm
TYS
- MDW
2 stops23h 17m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$171
This Kiwi.com deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” 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 5/2812:27 pm
MDW
- TYS
2 stops27h 13m
Multiple Airlines
Sun 5/311:22 pm
TYS
- MDW
Nonstop1h 35m
Multiple Airlines
Deal found 5/2![Multiple Airlines logo]()
$176
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 5/299:30 pm
MDW
- TYS
1 stop23h 48m
Allegiant Air
Sun 5/311:22 pm
TYS
- MDW
Nonstop1h 35m
Allegiant Air
Deal found 5/3![Allegiant Air logo]()
$181
This Kiwi.com deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” 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 6/59:23 pm
MDW
- TYS
1 stop23h 15m
Allegiant Air
Sun 6/71:22 pm
TYS
- MDW
Nonstop1h 34m
Allegiant Air
Deal found 5/2![Allegiant Air logo]()
$179
This Cheapflightsfares deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/142:46 pm
MDW
- TYS
Nonstop1h 28m
Allegiant Air
Sun 6/211:22 pm
TYS
- MDW
Nonstop1h 34m
Allegiant Air
Deal found 5/2![Allegiant Air logo]()
$174
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/182:46 pm
MDW
- TYS
Nonstop1h 28m
Allegiant Air
Sun 6/211:22 pm
TYS
- MDW
Nonstop1h 34m
Allegiant Air
Deal found 5/3![Allegiant Air logo]()
$163
This Cheapflightsfares deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/252:46 pm
MDW
- TYS
Nonstop1h 28m
Allegiant Air
Sun 6/281:22 pm
TYS
- MDW
Nonstop1h 34m
Allegiant Air
Deal found 5/1![Allegiant Air logo]()
$184
One-way flights from Illinois to KentuckySearch for one-way flight options from Illinois to Kentucky. Find affordable one-way fares based on user searches. Data last updated May 4, 2026.
Search for one-way flight options from Illinois to Kentucky. Find affordable one-way fares based on user searches. Data last updated May 4, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/62:49 pm
MDW
- TYS
Nonstop1h 30m
Allegiant Air
Deal found 4/30![Allegiant Air logo]()
$52
This Cheapflightsfares deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/282:46 pm
MDW
- TYS
Nonstop1h 28m
Allegiant Air
Deal found 5/1![Allegiant Air logo]()
$57
This Trip.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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/282:47 pm
MDW
- TYS
Nonstop1h 26m
Allegiant Air
Deal found 5/4![Allegiant Air logo]()
$65
This Cheapflightsfares deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/42:46 pm
MDW
- TYS
Nonstop1h 28m
Allegiant Air
Deal found 4/30![Allegiant Air logo]()
$67
This Southwest deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” 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 5/267:35 am
STL
- BNA
Nonstop1h 10m
Southwest
Deal found 4/29![Southwest logo]()
$69
This Super.com deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/212:47 pm
MDW
- TYS
Nonstop1h 26m
Allegiant Air
Deal found 5/2![Allegiant Air logo]()
$69
This Kiwi.com deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 5/2712:04 pm
MDW
- CVG
1 stop22h 00m
Frontier
Deal found 5/1![Frontier logo]()
$74
This Kiwi.com deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” 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 5/271:50 pm
ORD
- CVG
1 stop20h 14m
Frontier
Deal found 4/30![Frontier logo]()
$76
This Kiwi.com deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” 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 6/2912:04 pm
MDW
- CVG
1 stop22h 10m
Frontier
Deal found 4/29![Frontier logo]()
$78
This Southwest deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” 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 pm
MDW
- CVG
Nonstop1h 10m
Southwest
Deal found 4/29![Southwest logo]()
$79
This American Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” 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 5/2610:17 am
ORD
- CVG
Nonstop1h 34m
American Airlines
Deal found 4/30![American Airlines logo]()
$79
This Delta deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” 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 5/266:00 am
STL
- BNA
1 stop4h 17m
Delta
Deal found 4/29![Delta logo]()
$79
Find flight deals from Illinois to Kentucky
Keep the following information in mind while searching for Illinois to Kentucky flight deals. Data was last updated May 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $137 (Southwest) |
One-way from | $52 (Cheapflightsfares) |
Popular in | March |
Cheapest in | August |
Average price | $289 |
Good round-trip deal | $206 or less |
Good one-way deal | $103 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Illinois to Kentucky 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 4, 2026.
Use the filters below to find and compare flights from Illinois to Kentucky that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisNashville
STL - BNA
STLBNA
Lambert-St Louis
Tue 6/2
6:40 pm-7:50 pm
Nonstop1h 10m
Nashville Intl
Tue 6/9
10:10 am-3:45 pm
2 stops5h 35m
$152
Quickest round-trip
St. LouisNashville
STL - BNA
STLBNA
Lambert-St Louis
Mon 6/1
8:45 pm-9:55 pm
Nonstop1h 10m
Nashville Intl
Tue 6/2
6:25 am-7:45 am
Nonstop1h 20m
$164
St. LouisNashville
STL - BNA
STLBNA
Lambert-St Louis
Mon 6/8
2:30 pm-3:40 pm
Nonstop1h 10m
Nashville Intl
Wed 6/10
6:25 am-7:45 am
Nonstop1h 20m
$191
ChicagoCincinnati
ORD - CVG
ORDCVG
Chicago O'Hare Intl
Mon 6/1
9:25 am-3:14 pm
1 stop4h 49m
Cincinnati Cinci./N. Kentucky
Wed 6/3
5:48 am-10:16 am
1 stop5h 28m
$194
ChicagoCincinnati
ORD - CVG
ORDCVG
Chicago O'Hare Intl
Thu 5/21
9:25 am-3:14 pm
1 stop4h 49m
Cincinnati Cinci./N. Kentucky
Sat 5/23
6:00 pm-8:14 pm
1 stop3h 14m
$211
St. LouisNashville
STL - BNA
STLBNA
Lambert-St Louis
Thu 5/28
7:20 pm-9:03 am
1 stop13h 43m
Nashville Intl
Sun 5/31
2:35 pm-6:36 pm
1 stop4h 01m
$212
St. LouisNashville
STL - BNA
STLBNA
Lambert-St Louis
Fri 5/22
7:20 pm-9:03 am
1 stop13h 43m
Nashville Intl
Mon 5/25
2:35 pm-6:36 pm
1 stop4h 01m
$212
St. LouisNashville
STL - BNA
STLBNA
Lambert-St Louis
Thu 6/11
7:20 pm-9:03 am
1 stop13h 43m
Nashville Intl
Sun 6/14
2:35 pm-6:36 pm
1 stop4h 01m
$212
ChicagoCincinnati
MDW - CVG
MDWCVG
Chicago Midway
Thu 5/21
5:30 am-11:50 am
1 stop5h 20m
Cincinnati Cinci./N. Kentucky
Mon 5/25
8:20 pm-8:30 pm
Nonstop1h 10m
$236
ChicagoKnoxville
ORD - TYS
ORDTYS
Chicago O'Hare Intl
Thu 6/4
6:55 am-9:43 am
Nonstop1h 48m
Knoxville McGhee Tyson
Thu 6/25
6:00 am-6:59 am
Nonstop1h 59m
$249
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Illinois to Kentucky
Have a flexible travel schedule? Discover the best time to fly to Kentucky from Illinois with our price prediction graph.
MDW-TYS
STL-BNA
MDW-CVG
ORD-CVG
ORD-BNA
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 Illinois to Kentucky
USIL-USKY
MDW-TYS
STL-BNA
MDW-CVG
ORD-CVG
How far ahead should I book a flight from Illinois to Kentucky?
The best time to book flights from Illinois to Kentucky is 67 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 Illinois to Kentucky?
Currently, July is the cheapest month in which you can book a flight from Illinois to Kentucky (average of $69). Flying from Illinois to Kentucky in June is currently the most expensive (average of $114). 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 IL to KY?
Find hourly flight availability from Illinois to Kentucky. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 4, 2026.
It’s optimal to fly from Illinois to Kentucky in the morning. By choosing this option you can save up to 30% on the cost of your flight, compared to a flight at noon.
What is the cheapest day to fly from Illinois to Kentucky?
Use this chart to determine the cheapest time to fly round-trip from Illinois to Kentucky. Price data was last updated on May 2, 2026.
Travelers seeking maximum savings on their Illinois to Kentucky flight should consider departing on Sunday mornings when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Illinois to Kentucky
Explore weekly flight availability from Illinois to Kentucky. 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 4, 2026.
The most flights from USIL to USKY are scheduled on a Sunday (53 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (31 on average).
How much does it cost to fly round-trip from Illinois to Kentucky?
Reviews of airlines servicing Kentucky
Get insights into the airlines that provide service to Kentucky. 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 Kentucky. Reviews last updated May 4, 2026.
Peruse reviews from past customers who have flown with Southwest,Contour, andUnited Airlines from Illinois to Kentucky to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.9
Crew
8.6
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
7.9
Crew
8.6
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
7.9
Crew
8.6
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
7.9
Crew
8.6
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
7.9
Crew
8.6
Entertainment
7.5
Boarding
8.1
Comfort
8.0
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 Illinois to Kentucky. 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 Illinois to Kentucky
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Kentucky by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Illinois to Kentucky by cabin class
Find flights from Illinois to Kentucky, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Illinois and Kentucky flights
Browse other Illinois and Kentucky flight options. Last updated on May 4, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Kentucky
Find the right flight back to Illinois after your stay in Kentucky
Illinois to Kentucky flights
Consider these flights traveling from Illinois to Kentucky.
Top 4 airlines flying from Illinois to Kentucky
Discover the top 4 airlines that operate flights from Illinois to Kentucky. 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 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$104 | Average$148 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$124 | Average$248 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$133 | Average$389 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$136 | Average$303 | FlexibilityNo cancel fee | On-time71% |