$83+ Cheap flights from Louisville (SDF) 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 4/27. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — ORD
May 2 — May 91
Round-trip
1 adult, Economy
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Find cheap flights from Louisville to Illinois with Cheapflights
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Cheapest flights from Louisville to IllinoisExplore the most affordable flight options available from Louisville to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 2, 2026.
Explore the most affordable flight options available from Louisville to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 2, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/29. 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.
Fri 4/177:48 pm
SDF
- ORD
1 stop26h 29m
Multiple Airlines
Thu 4/231:27 pm
ORD
- SDF
1 stop28h 31m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$194
This Kiwi.com deal was found by Cheapflights users on 3/30. 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.
Mon 4/137:48 pm
SDF
- ORD
1 stop26h 29m
Multiple Airlines
Thu 4/161:27 pm
ORD
- SDF
1 stop26h 37m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$201
This Kiwi.com deal was found by Cheapflights users on 3/29. 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.
Fri 4/177:48 pm
SDF
- ORD
1 stop26h 29m
Multiple Airlines
Mon 4/205:05 am
ORD
- SDF
1 stop10h 59m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$214
This Kiwi.com deal was found by Cheapflights users on 3/29. 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.
Fri 5/1510:33 am
SDF
- ORD
1 stop14h 26m
Multiple Airlines
Sun 5/173:05 pm
ORD
- SDF
1 stop26h 53m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$217
This Kiwi.com deal was found by Cheapflights users on 3/29. 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.
Fri 4/177:48 pm
SDF
- ORD
1 stop26h 29m
Multiple Airlines
Wed 4/221:27 pm
ORD
- SDF
1 stop26h 37m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$222
This Kiwi.com deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” 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 4/1412:42 pm
SDF
- ORD
1 stop9h 35m
Multiple Airlines
Wed 4/151:27 pm
ORD
- SDF
1 stop26h 37m
Multiple Airlines
Deal found 3/31![Multiple Airlines logo]()
$224
This Kiwi.com deal was found by Cheapflights users on 3/29. 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 4/137:48 pm
SDF
- ORD
1 stop26h 29m
Multiple Airlines
Fri 4/177:15 pm
ORD
- SDF
1 stop20h 49m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$231
This Kiwi.com deal was found by Cheapflights users on 3/29. 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.
Fri 4/177:48 pm
SDF
- ORD
1 stop26h 29m
Multiple Airlines
Sat 4/257:15 pm
ORD
- SDF
1 stop20h 49m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$232
This Kiwi.com deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” 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 5/810:33 am
SDF
- ORD
1 stop14h 26m
Multiple Airlines
Sun 5/103:44 pm
ORD
- SDF
1 stop16h 44m
Multiple Airlines
Deal found 3/31![Multiple Airlines logo]()
$241
This Southwest deal was found by Cheapflights users on 3/30. 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.
Tue 5/58:55 am
SDF
- MDW
Nonstop1h 20m
Southwest
Wed 5/612:50 pm
MDW
- SDF
Nonstop1h 15m
Southwest
Deal found 3/30![Southwest logo]()
$257
This Southwest deal was found by Cheapflights users on 3/30. 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.
Tue 4/213:30 pm
SDF
- MDW
Nonstop1h 15m
Southwest
Sat 4/253:35 pm
MDW
- SDF
Nonstop1h 10m
Southwest
Deal found 3/30![Southwest logo]()
$271
This Southwest deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” 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 4/227:15 pm
SDF
- MDW
Nonstop1h 15m
Southwest
Thu 5/77:45 am
MDW
- SDF
Nonstop1h 10m
Southwest
Deal found 3/31![Southwest logo]()
$272
Best flights from Louisville to IllinoisDiscover carefully curated flight deals from Louisville to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 2, 2026.
Discover carefully curated flight deals from Louisville to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 2, 2026.
This United Airlines deal was found by Cheapflights users on 4/1. 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.
Mon 6/19:00 am
SDF
- ORD
Nonstop1h 38m
United Airlines
Wed 6/36:35 am
ORD
- SDF
Nonstop1h 27m
United Airlines
Deal found 4/1![United Airlines logo]()
$272
This Southwest deal was found by Cheapflights users on 3/29. 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 6/94:20 pm
SDF
- MDW
Nonstop1h 15m
Southwest
Tue 6/96:15 pm
MDW
- SDF
Nonstop1h 10m
Southwest
Deal found 3/29![Southwest logo]()
$275
This Delta deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” 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 5/57:56 am
SDF
- ORD
2 stops11h 17m
Delta
Wed 5/68:52 am
ORD
- SDF
1 stop4h 38m
Delta
Deal found 3/31![Delta logo]()
$282
This American Airlines deal was found by Cheapflights users on 4/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/256:31 am
SDF
- MLI
2 stops6h 50m
American Airlines
Mon 4/2712:51 pm
MLI
- SDF
2 stops8h 17m
American Airlines
Deal found 4/2![American Airlines logo]()
$319
This Southwest deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” 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 5/271:35 pm
SDF
- MDW
1 stop7h 45m
Southwest
Thu 5/2812:45 pm
MDW
- SDF
Nonstop1h 15m
Southwest
Deal found 3/31![Southwest logo]()
$282
This United Airlines deal was found by Cheapflights users on 3/30. 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 5/12:55 pm
SDF
- ORD
Nonstop1h 40m
United Airlines
Tue 5/55:45 pm
ORD
- SDF
Nonstop1h 32m
United Airlines
Deal found 3/30![United Airlines logo]()
$286
This Delta deal was found by Cheapflights users on 4/1. 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.
Wed 5/275:47 pm
SDF
- STL
1 stop4h 42m
Delta
Mon 6/17:01 pm
STL
- SDF
1 stop4h 24m
Delta
Deal found 4/1![Delta logo]()
$293
This United Airlines deal was found by Cheapflights users on 3/30. 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.
Thu 5/77:15 am
SDF
- ORD
Nonstop1h 40m
United Airlines
Thu 5/79:25 pm
ORD
- SDF
Nonstop1h 31m
United Airlines
Deal found 3/30![United Airlines logo]()
$287
This Southwest deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” 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 4/256:40 am
SDF
- STL
1 stop2h 45m
Southwest
Mon 4/275:00 am
STL
- SDF
1 stop6h 35m
Southwest
Deal found 3/31![Southwest logo]()
$288
This American Airlines deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” 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.
Thu 4/169:43 am
SDF
- MLI
2 stops9h 24m
American Airlines
Mon 4/2012:51 pm
MLI
- SDF
1 stop4h 39m
American Airlines
Deal found 3/31![American Airlines logo]()
$324
This Delta deal was found by Cheapflights users on 4/1. 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.
Mon 6/17:50 am
SDF
- ORD
2 stops10h 01m
Delta
Wed 6/36:24 am
ORD
- SDF
1 stop4h 35m
Delta
Deal found 4/1![Delta logo]()
$297
This United Airlines deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” 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 4/237:20 am
SDF
- ORD
Nonstop1h 40m
United Airlines
Mon 4/279:30 pm
ORD
- SDF
Nonstop1h 29m
United Airlines
Deal found 3/31![United Airlines logo]()
$287
This Southwest deal was found by Cheapflights users on 4/1. 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.
Fri 5/155:25 pm
SDF
- MDW
1 stop4h 35m
Southwest
Tue 5/1912:50 pm
MDW
- SDF
Nonstop1h 15m
Southwest
Deal found 4/1![Southwest logo]()
$296
This Delta deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” 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 5/126:05 am
SDF
- ORD
2 stops7h 56m
Delta
Tue 5/196:24 am
ORD
- SDF
2 stops6h 27m
Delta
Deal found 3/28![Delta logo]()
$301
This American Airlines deal was found by Cheapflights users on 3/30. 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.
Wed 5/278:05 pm
SDF
- STL
1 stop4h 39m
American Airlines
Mon 6/16:12 pm
STL
- SDF
1 stop5h 16m
American Airlines
Deal found 3/30![American Airlines logo]()
$338
This Southwest deal was found by Cheapflights users on 3/30. 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.
Mon 6/18:40 am
SDF
- MDW
Nonstop1h 20m
Southwest
Thu 6/46:40 am
MDW
- SDF
1 stop6h 45m
Southwest
Deal found 3/30![Southwest logo]()
$297
This Delta deal was found by Cheapflights users on 3/30. 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.
Thu 4/306:04 am
SDF
- ORD
2 stops7h 41m
Delta
Sat 5/25:04 pm
ORD
- SDF
1 stop3h 16m
Delta
Deal found 3/30![Delta logo]()
$304
This United Airlines deal was found by Cheapflights users on 4/2. 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.
Sat 4/255:00 am
SDF
- MLI
1 stop5h 58m
United Airlines
Mon 4/277:34 pm
MLI
- SDF
1 stop3h 25m
United Airlines
Deal found 4/2![United Airlines logo]()
$309
This Southwest deal was found by Cheapflights users on 3/29. 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 6/108:45 am
SDF
- MDW
Nonstop1h 15m
Southwest
Sat 6/132:10 pm
MDW
- SDF
2 stops8h 30m
Southwest
Deal found 3/29![Southwest logo]()
$310
This Delta deal was found by Cheapflights users on 4/1. 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 5/17:56 am
SDF
- MDW
1 stop5h 47m
Delta
Tue 5/51:24 pm
MDW
- SDF
2 stops9h 35m
Delta
Deal found 4/1![Delta logo]()
$311
This United Airlines deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” 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 7/239:00 am
SDF
- ORD
Nonstop1h 38m
United Airlines
Sun 7/269:30 pm
ORD
- SDF
Nonstop1h 35m
United Airlines
Deal found 3/28![United Airlines logo]()
$315
This Southwest deal was found by Cheapflights users on 3/29. 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.
Thu 5/145:25 pm
SDF
- MDW
1 stop4h 35m
Southwest
Sun 5/177:35 pm
MDW
- SDF
Nonstop1h 15m
Southwest
Deal found 3/29![Southwest logo]()
$311
This United Airlines deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” 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 6/137:10 am
SDF
- ORD
Nonstop1h 41m
United Airlines
Sun 6/216:35 am
ORD
- SDF
Nonstop1h 27m
United Airlines
Deal found 3/28![United Airlines logo]()
$315
This Southwest deal was found by Cheapflights users on 3/30. 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.
Mon 6/298:05 pm
SDF
- MDW
Nonstop1h 15m
Southwest
Fri 7/37:45 am
MDW
- SDF
Nonstop1h 20m
Southwest
Deal found 3/30![Southwest logo]()
$315
This United Airlines deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” 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 4/169:07 am
SDF
- MLI
1 stop4h 20m
United Airlines
Mon 4/207:34 pm
MLI
- SDF
1 stop3h 25m
United Airlines
Deal found 3/31![United Airlines logo]()
$319
This Delta deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” 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 9/1610:43 am
SDF
- STL
1 stop4h 55m
Delta
Sun 9/206:30 am
STL
- SDF
1 stop4h 33m
Delta
Deal found 3/31![Delta logo]()
$375
This Southwest deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” 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 6/137:10 pm
SDF
- MDW
Nonstop1h 15m
Southwest
Sun 6/148:00 am
MDW
- SDF
Nonstop1h 15m
Southwest
Deal found 3/31![Southwest logo]()
$315
This United Airlines deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” 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 5/23:36 pm
SDF
- STL
1 stop5h 15m
United Airlines
Tue 5/55:28 pm
STL
- SDF
1 stop5h 28m
United Airlines
Deal found 3/28![United Airlines logo]()
$345
This Southwest deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” 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 5/203:45 pm
SDF
- STL
2 stops7h 25m
Southwest
Mon 5/255:00 am
STL
- SDF
1 stop6h 35m
Southwest
Deal found 3/31![Southwest logo]()
$340
This Southwest deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” 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.
Sun 4/195:40 pm
SDF
- STL
1 stop7h 15m
Southwest
Mon 4/205:40 am
STL
- SDF
1 stop3h 15m
Southwest
Deal found 3/28![Southwest logo]()
$363
Last-minute flights from Louisville to IllinoisDiscover last-minute flight deals from Louisville to Illinois. Data last updated April 2, 2026 and is based on user searches.
Discover last-minute flight deals from Louisville to Illinois. Data last updated April 2, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 3/30. 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.
Mon 4/137:48 pm
SDF
- ORD
1 stop26h 29m
Multiple Airlines
Thu 4/161:27 pm
ORD
- SDF
1 stop26h 37m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$201
This Kiwi.com deal was found by Cheapflights users on 3/29. 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 4/137:48 pm
SDF
- ORD
1 stop26h 29m
Multiple Airlines
Fri 4/177:15 pm
ORD
- SDF
1 stop20h 49m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$231
This Kiwi.com deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” 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 4/1412:42 pm
SDF
- ORD
1 stop9h 35m
Multiple Airlines
Wed 4/151:27 pm
ORD
- SDF
1 stop26h 37m
Multiple Airlines
Deal found 3/31![Multiple Airlines logo]()
$224
This Kiwi.com deal was found by Cheapflights users on 3/29. 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.
Fri 4/177:48 pm
SDF
- ORD
1 stop26h 29m
Multiple Airlines
Thu 4/231:27 pm
ORD
- SDF
1 stop28h 31m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$194
This Kiwi.com deal was found by Cheapflights users on 3/29. 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.
Fri 4/177:48 pm
SDF
- ORD
1 stop26h 29m
Multiple Airlines
Mon 4/205:05 am
ORD
- SDF
1 stop10h 59m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$214
This Kiwi.com deal was found by Cheapflights users on 3/29. 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.
Fri 4/177:48 pm
SDF
- ORD
1 stop26h 29m
Multiple Airlines
Wed 4/221:27 pm
ORD
- SDF
1 stop26h 37m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$222
This Kiwi.com deal was found by Cheapflights users on 3/29. 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.
Fri 4/177:48 pm
SDF
- ORD
1 stop26h 29m
Multiple Airlines
Sat 4/257:15 pm
ORD
- SDF
1 stop20h 49m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$232
This Southwest deal was found by Cheapflights users on 3/30. 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.
Tue 4/213:30 pm
SDF
- MDW
Nonstop1h 15m
Southwest
Sat 4/253:35 pm
MDW
- SDF
Nonstop1h 10m
Southwest
Deal found 3/30![Southwest logo]()
$271
This Southwest deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” 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 4/227:15 pm
SDF
- MDW
Nonstop1h 15m
Southwest
Thu 5/77:45 am
MDW
- SDF
Nonstop1h 10m
Southwest
Deal found 3/31![Southwest logo]()
$272
This Southwest deal was found by Cheapflights users on 3/30. 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.
Tue 5/58:55 am
SDF
- MDW
Nonstop1h 20m
Southwest
Wed 5/612:50 pm
MDW
- SDF
Nonstop1h 15m
Southwest
Deal found 3/30![Southwest logo]()
$257
This Kiwi.com deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” 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 5/810:33 am
SDF
- ORD
1 stop14h 26m
Multiple Airlines
Sun 5/103:44 pm
ORD
- SDF
1 stop16h 44m
Multiple Airlines
Deal found 3/31![Multiple Airlines logo]()
$241
This Kiwi.com deal was found by Cheapflights users on 3/29. 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.
Fri 5/1510:33 am
SDF
- ORD
1 stop14h 26m
Multiple Airlines
Sun 5/173:05 pm
ORD
- SDF
1 stop26h 53m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$217
One-way flights from Louisville to IllinoisSearch for one-way flight options from Louisville to Illinois. Find affordable one-way fares based on user searches. Data last updated April 2, 2026.
Search for one-way flight options from Louisville to Illinois. Find affordable one-way fares based on user searches. Data last updated April 2, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/1. 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.
Mon 4/276:06 pm
SDF
- ORD
1 stop28h 11m
Multiple Airlines
Deal found 4/1![Multiple Airlines logo]()
$83
This Kiwi.com deal was found by Cheapflights users on 3/29. 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.
Fri 4/176:06 pm
SDF
- ORD
1 stop28h 11m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$88
This Kiwi.com deal was found by Cheapflights users on 3/30. 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.
Fri 4/247:48 pm
SDF
- ORD
1 stop26h 29m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$89
This Kiwi.com deal was found by Cheapflights users on 4/1. 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.
Tue 4/1412:42 pm
SDF
- ORD
1 stop9h 35m
Multiple Airlines
Deal found 4/1![Multiple Airlines logo]()
$96
This Mytrip deal was found by Cheapflights users on 4/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/206:06 pm
SDF
- ORD
1 stop16h 30m
Spirit Airlines
Deal found 4/2![Spirit Airlines logo]()
$100
This Kiwi.com deal was found by Cheapflights users on 3/29. 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.
Fri 5/17:48 pm
SDF
- ORD
1 stop14h 48m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$111
This Kiwi.com deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” 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 4/107:48 pm
SDF
- ORD
1 stop25h 03m
Multiple Airlines
Deal found 3/28![Multiple Airlines logo]()
$113
This Kiwi.com deal was found by Cheapflights users on 4/1. 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.
Mon 5/47:48 pm
SDF
- ORD
1 stop28h 27m
Multiple Airlines
Deal found 4/1![Multiple Airlines logo]()
$116
This Kiwi.com deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” 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 4/276:06 pm
SDF
- STL
2 stops37h 44m
Multiple Airlines
Deal found 3/31![Multiple Airlines logo]()
$118
This Kiwi.com deal was found by Cheapflights users on 4/1. 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.
Fri 4/247:48 pm
SDF
- MDW
2 stops23h 49m
Multiple Airlines
Deal found 4/1![Multiple Airlines logo]()
$120
This Kiwi.com deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” 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 4/276:06 pm
SDF
- MDW
2 stops29h 08m
Multiple Airlines
Deal found 3/31![Multiple Airlines logo]()
$121
This Kiwi.com deal was found by Cheapflights users on 4/2. 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.
Mon 4/207:48 pm
SDF
- MDW
2 stops42h 12m
Multiple Airlines
Deal found 4/2![Multiple Airlines logo]()
$123
Find flight deals from Louisville to Illinois
Keep the following information in mind while searching for Louisville to Illinois flight deals. Data was last updated April 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $194 (Kiwi.com) |
One-way from | $83 (Kiwi.com) |
Popular in | January |
Cheapest in | November |
Average price | $249 |
Good round-trip deal | $379 or less |
Good one-way deal | $192 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Louisville to Illinois that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 2, 2026.
Use the filters below to find and compare flights from Louisville to Illinois that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
LouisvilleChicago
SDF - ORD
SDFORD
Louisville Intl
Mon 6/1
9:00 am-9:38 am
Nonstop1h 38m
Chicago O'Hare Intl
Wed 6/3
6:35 am-9:02 am
Nonstop1h 27m
$272
Quickest round-trip
LouisvilleChicago
SDF - MDW
SDFMDW
Louisville Intl
Tue 6/9
4:20 pm-4:35 pm
Nonstop1h 15m
Chicago Midway
Tue 6/9
6:15 pm-8:25 pm
Nonstop1h 10m
$275
LouisvilleChicago
SDF - ORD
SDFORD
Louisville Intl
Tue 5/5
7:56 am-6:13 pm
2 stops11h 17m
Chicago O'Hare Intl
Wed 5/6
8:52 am-2:30 pm
1 stop4h 38m
$282
LouisvilleChicago
SDF - MDW
SDFMDW
Louisville Intl
Wed 5/27
1:35 pm-8:20 pm
1 stop7h 45m
Chicago Midway
Thu 5/28
12:45 pm-3:00 pm
Nonstop1h 15m
$282
LouisvilleChicago
SDF - ORD
SDFORD
Louisville Intl
Fri 5/1
2:55 pm-3:35 pm
Nonstop1h 40m
Chicago O'Hare Intl
Tue 5/5
5:45 pm-8:17 pm
Nonstop1h 32m
$286
LouisvilleChicago
SDF - ORD
SDFORD
Louisville Intl
Thu 5/7
7:15 am-7:55 am
Nonstop1h 40m
Chicago O'Hare Intl
Thu 5/7
9:25 pm-11:56 pm
Nonstop1h 31m
$287
LouisvilleChicago
SDF - ORD
SDFORD
Louisville Intl
Thu 4/23
7:20 am-8:00 am
Nonstop1h 40m
Chicago O'Hare Intl
Mon 4/27
9:30 pm-11:59 pm
Nonstop1h 29m
$287
LouisvilleSt. Louis
SDF - STL
SDFSTL
Louisville Intl
Sat 4/25
6:40 am-8:25 am
1 stop2h 45m
Lambert-St Louis
Mon 4/27
5:00 am-12:35 pm
1 stop6h 35m
$288
LouisvilleSt. Louis
SDF - STL
SDFSTL
Louisville Intl
Wed 5/27
5:47 pm-9:29 pm
1 stop4h 42m
Lambert-St Louis
Mon 6/1
7:01 pm-12:25 am
1 stop4h 24m
$293
LouisvilleChicago
SDF - MDW
SDFMDW
Louisville Intl
Fri 5/15
5:25 pm-9:00 pm
1 stop4h 35m
Chicago Midway
Tue 5/19
12:50 pm-3:05 pm
Nonstop1h 15m
$296
Showing 1-10 of 53 resultsSorted by cheapest first
Best time to book a flight from Louisville to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from Louisville with our price prediction graph.
SDF-ORD
SDF-MDW
SDF-STL
SDF-MLI
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 Louisville to Illinois
SDF-USIL
SDF-ORD
SDF-MDW
SDF-STL
SDF-MLI
What is the cheapest month to book a flight from Louisville to Illinois?
Currently, April is the cheapest month in which you can book a flight from Louisville to Illinois (average of $58). Flying from Louisville to Illinois in March is currently the most expensive (average of $176). 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 SDF to IL?
Find hourly flight availability from Louisville to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 2, 2026.
When flying from Louisville to Illinois, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 32% versus a flight at noon.
What is the cheapest day to fly from Louisville to Illinois?
Use this chart to determine the cheapest time to fly round-trip from Louisville to Illinois. Price data was last updated on March 28, 2026.
Travelers seeking maximum savings on their Louisville to Illinois flight should consider departing on Friday afternoons when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Louisville to Illinois
Explore weekly flight availability from Louisville to Illinois. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated April 2, 2026.
The most flights from SDF to USIL are scheduled on a Thursday (39 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (17 on average).
How much does it cost to fly round-trip from Louisville to Illinois?
Reviews of airlines servicing Illinois
Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated April 2, 2026.
See what other customers who have flown with Southwest,United Airlines, andAmerican Airlines from Louisville to Illinois have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
8.0
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Food
7.0
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 Louisville 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 Louisville 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 Louisville to Illinois by cabin class
Find flights from Louisville to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Louisville and Illinois flights
Browse other Louisville and Illinois flight options. Last updated on April 2, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Louisville to Illinois flights
Consider these flights traveling from Louisville to Illinois.
Top 3 airlines flying from Louisville to Illinois
Discover the top 3 airlines that operate flights from Louisville to Illinois. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 2, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$97 | Average$250 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$97 | Average$244 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$114 | Average$271 | FlexibilityNo cancel fee | On-time69% |