$115+ 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 6/22. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — ORD
Jun 23 — Jun 301
Round-trip
1 adult, Economy
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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 May 24, 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 May 24, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/149:10 pm
SDF
- ORD
1 stop16h 05m
Multiple Airlines
Thu 8/207:55 am
ORD
- SDF
1 stop24h 54m
Multiple Airlines
Deal found 5/22![Multiple Airlines logo]()
$246
This American Airlines deal was found by Cheapflights users on 5/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/46:00 am
SDF
- ORD
1 stop7h 53m
American Airlines
Sat 7/43:46 pm
ORD
- SDF
Nonstop1h 36m
American Airlines
Deal found 5/23![American Airlines logo]()
$253
This United Airlines deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/115:45 pm
SDF
- ORD
Nonstop1h 51m
United Airlines
Tue 8/189:25 pm
ORD
- SDF
Nonstop1h 34m
United Airlines
Deal found 5/22![United Airlines logo]()
$257
This American Airlines deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1011:19 am
SDF
- ORD
1 stop5h 46m
American Airlines
Wed 11/116:51 pm
ORD
- SDF
Nonstop1h 38m
American Airlines
Deal found 5/22![American Airlines logo]()
$267
This United Airlines deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/126:16 pm
SDF
- ORD
Nonstop1h 49m
United Airlines
Tue 11/172:25 pm
ORD
- SDF
Nonstop1h 24m
United Airlines
Deal found 5/22![United Airlines logo]()
$274
This American Airlines deal was found by Cheapflights users on 5/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/307:18 pm
SDF
- ORD
Nonstop1h 56m
American Airlines
Wed 7/17:44 pm
ORD
- SDF
Nonstop1h 35m
American Airlines
Deal found 5/23![American Airlines logo]()
$275
This Southwest deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” 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 6/207:15 pm
SDF
- MDW
Nonstop1h 15m
Southwest
Sat 6/277:40 am
MDW
- SDF
Nonstop1h 20m
Southwest
Deal found 5/20![Southwest logo]()
$275
This United Airlines deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” 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 6/177:19 am
SDF
- ORD
Nonstop1h 41m
United Airlines
Wed 6/244:29 pm
ORD
- SDF
Nonstop1h 31m
United Airlines
Deal found 5/20![United Airlines logo]()
$276
This Southwest deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” 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 6/177:45 pm
SDF
- MDW
Nonstop1h 15m
Southwest
Wed 6/247:45 am
MDW
- SDF
Nonstop1h 20m
Southwest
Deal found 5/20![Southwest logo]()
$276
This American Airlines deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” 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 6/176:51 am
SDF
- ORD
Nonstop1h 47m
American Airlines
Wed 6/247:44 pm
ORD
- SDF
Nonstop1h 35m
American Airlines
Deal found 5/20![American Airlines logo]()
$277
This American Airlines deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” 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 7/217:10 pm
SDF
- ORD
Nonstop2h 04m
American Airlines
Wed 7/224:01 pm
ORD
- SDF
Nonstop1h 34m
American Airlines
Deal found 5/19![American Airlines logo]()
$280
This United Airlines deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:00 am
SDF
- ORD
Nonstop1h 40m
United Airlines
Sat 11/74:45 pm
ORD
- SDF
Nonstop1h 24m
United Airlines
Deal found 5/22![United Airlines logo]()
$283
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 May 24, 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 May 24, 2026.
This United Airlines deal was found by Cheapflights users on 5/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/410:04 am
SDF
- ORD
Nonstop1h 36m
United Airlines
Sat 7/44:25 pm
ORD
- SDF
Nonstop1h 31m
United Airlines
Deal found 5/23![United Airlines logo]()
$275
This Southwest deal was found by Cheapflights users on 5/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/48:50 am
SDF
- MDW
Nonstop1h 15m
Southwest
Sat 7/43:40 pm
MDW
- SDF
Nonstop1h 10m
Southwest
Deal found 5/23![Southwest logo]()
$275
This Delta deal was found by Cheapflights users on 5/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/3010:35 am
SDF
- ORD
1 stop6h 51m
Delta
Wed 7/17:01 am
ORD
- SDF
1 stop5h 38m
Delta
Deal found 5/23![Delta logo]()
$295
This American Airlines deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/67:43 am
SDF
- MLI
2 stops11h 39m
American Airlines
Wed 6/104:24 pm
MLI
- SDF
1 stop7h 04m
American Airlines
Deal found 5/22![American Airlines logo]()
$324
This Southwest deal was found by Cheapflights users on 5/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/2011:50 am
SDF
- MDW
Nonstop1h 10m
Southwest
Fri 7/37:00 am
MDW
- SDF
1 stop4h 30m
Southwest
Deal found 5/23![Southwest logo]()
$285
This United Airlines deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/1910:04 am
SDF
- ORD
Nonstop1h 36m
United Airlines
Wed 7/224:25 pm
ORD
- SDF
Nonstop1h 31m
United Airlines
Deal found 5/22![United Airlines logo]()
$286
This Delta deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/37:49 am
SDF
- MDW
1 stop5h 57m
Delta
Sat 7/49:17 am
MDW
- SDF
1 stop6h 29m
Delta
Deal found 5/22![Delta logo]()
$295
This Southwest deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/109:20 am
SDF
- MDW
Nonstop1h 15m
Southwest
Mon 10/126:45 pm
MDW
- SDF
Nonstop1h 10m
Southwest
Deal found 5/22![Southwest logo]()
$291
This United Airlines deal was found by Cheapflights users on 5/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/247:19 am
SDF
- ORD
Nonstop1h 41m
United Airlines
Sun 6/289:25 pm
ORD
- SDF
Nonstop1h 34m
United Airlines
Deal found 5/23![United Airlines logo]()
$295
This Delta deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/65:50 pm
SDF
- MLI
1 stop5h 31m
Delta
Wed 6/105:56 am
MLI
- SDF
1 stop4h 57m
Delta
Deal found 5/22![Delta logo]()
$319
This Southwest deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” 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 6/263:35 pm
SDF
- MDW
Nonstop1h 15m
Southwest
Tue 6/307:45 am
MDW
- SDF
Nonstop1h 20m
Southwest
Deal found 5/20![Southwest logo]()
$295
This United Airlines deal was found by Cheapflights users on 5/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/319:00 am
SDF
- ORD
Nonstop1h 38m
United Airlines
Sun 8/25:50 pm
ORD
- SDF
Nonstop1h 33m
United Airlines
Deal found 5/23![United Airlines logo]()
$315
This Southwest deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” 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 6/277:15 pm
SDF
- MDW
Nonstop1h 15m
Southwest
Mon 6/297:45 pm
MDW
- SDF
Nonstop1h 10m
Southwest
Deal found 5/20![Southwest logo]()
$295
This Delta deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” 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 7/237:50 am
SDF
- ORD
1 stop3h 47m
Delta
Sun 7/267:05 am
ORD
- SDF
1 stop5h 37m
Delta
Deal found 5/21![Delta logo]()
$335
This Southwest deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” 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 9/1011:50 am
SDF
- MDW
1 stop7h 25m
Southwest
Tue 9/156:20 pm
MDW
- SDF
Nonstop1h 15m
Southwest
Deal found 5/20![Southwest logo]()
$296
This Delta deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/1310:35 am
SDF
- ORD
1 stop4h 18m
Delta
Sun 6/147:01 am
ORD
- SDF
1 stop5h 38m
Delta
Deal found 5/22![Delta logo]()
$345
This Southwest deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” 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 10/15:30 am
SDF
- MDW
1 stop4h 25m
Southwest
Wed 10/217:45 am
MDW
- SDF
Nonstop1h 15m
Southwest
Deal found 5/19![Southwest logo]()
$296
This United Airlines deal was found by Cheapflights users on 5/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/45:50 pm
SDF
- STL
1 stop4h 36m
United Airlines
Wed 8/57:20 am
STL
- SDF
1 stop5h 15m
United Airlines
Deal found 5/23![United Airlines logo]()
$365
This Southwest deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” 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 6/95:25 pm
SDF
- STL
2 stops7h 15m
Southwest
Wed 6/105:20 pm
STL
- SDF
1 stop5h 55m
Southwest
Deal found 5/19![Southwest logo]()
$300
This United Airlines deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” 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 8/189:00 am
SDF
- STL
1 stop4h 02m
United Airlines
Wed 8/196:00 am
STL
- SDF
1 stop6h 11m
United Airlines
Deal found 5/19![United Airlines logo]()
$365
This Delta deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/37:49 am
SDF
- ORD
1 stop6h 11m
Delta
Sat 7/46:30 am
ORD
- SDF
2 stops9h 16m
Delta
Deal found 5/22![Delta logo]()
$407
This Southwest deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2310:50 am
SDF
- MDW
2 stops9h 20m
Southwest
Fri 9/2512:10 pm
MDW
- SDF
Nonstop1h 15m
Southwest
Deal found 5/19![Southwest logo]()
$310
This Southwest deal was found by Cheapflights users on 5/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/247:25 am
SDF
- MDW
2 stops8h 45m
Southwest
Sun 6/288:00 am
MDW
- SDF
Nonstop1h 15m
Southwest
Deal found 5/23![Southwest logo]()
$310
This Delta deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/202:15 pm
SDF
- ORD
1 stop5h 25m
Delta
Sat 11/79:30 am
ORD
- SDF
2 stops7h 10m
Delta
Deal found 5/22![Delta logo]()
$422
This Delta deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” 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 6/267:49 am
SDF
- ORD
2 stops10h 13m
Delta
Tue 6/302:07 pm
ORD
- SDF
1 stop6h 08m
Delta
Deal found 5/19![Delta logo]()
$422
This Southwest deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/24:05 pm
SDF
- STL
1 stop6h 10m
Southwest
Wed 8/55:55 am
STL
- SDF
1 stop5h 45m
Southwest
Deal found 5/24![Southwest logo]()
$345
This Delta deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” 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 10/17:00 am
SDF
- ORD
2 stops6h 39m
Delta
Wed 10/217:05 am
ORD
- SDF
1 stop5h 34m
Delta
Deal found 5/19![Delta logo]()
$422
This Southwest deal was found by Cheapflights users on 5/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/245:05 pm
SDF
- STL
1 stop7h 10m
Southwest
Wed 7/295:05 am
STL
- SDF
1 stop5h 00m
Southwest
Deal found 5/23![Southwest logo]()
$345
This Delta deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/128:20 am
SDF
- ORD
2 stops9h 13m
Delta
Tue 11/178:55 am
ORD
- SDF
1 stop3h 44m
Delta
Deal found 5/22![Delta logo]()
$422
This Southwest deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” 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 10/1612:55 pm
SDF
- STL
1 stop7h 10m
Southwest
Mon 10/191:50 pm
STL
- SDF
1 stop8h 05m
Southwest
Deal found 5/19![Southwest logo]()
$353
Last-minute flights from Louisville to IllinoisDiscover last-minute flight deals from Louisville to Illinois. Data last updated May 24, 2026 and is based on user searches.
Discover last-minute flight deals from Louisville to Illinois. Data last updated May 24, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/98:05 pm
SDF
- STL
1 stop4h 39m
American Airlines
Wed 6/106:13 pm
STL
- SDF
1 stop5h 15m
American Airlines
Deal found 5/19![American Airlines logo]()
$295
This Southwest deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” 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 6/95:25 pm
SDF
- STL
2 stops7h 15m
Southwest
Wed 6/105:20 pm
STL
- SDF
1 stop5h 55m
Southwest
Deal found 5/19![Southwest logo]()
$300
This United Airlines deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” 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 6/177:19 am
SDF
- ORD
Nonstop1h 41m
United Airlines
Wed 6/244:29 pm
ORD
- SDF
Nonstop1h 31m
United Airlines
Deal found 5/20![United Airlines logo]()
$276
This Southwest deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” 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 6/177:45 pm
SDF
- MDW
Nonstop1h 15m
Southwest
Wed 6/247:45 am
MDW
- SDF
Nonstop1h 20m
Southwest
Deal found 5/20![Southwest logo]()
$276
This American Airlines deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” 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 6/176:51 am
SDF
- ORD
Nonstop1h 47m
American Airlines
Wed 6/247:44 pm
ORD
- SDF
Nonstop1h 35m
American Airlines
Deal found 5/20![American Airlines logo]()
$277
This Southwest deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” 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 6/207:15 pm
SDF
- MDW
Nonstop1h 15m
Southwest
Sat 6/277:40 am
MDW
- SDF
Nonstop1h 20m
Southwest
Deal found 5/20![Southwest logo]()
$275
This Southwest deal was found by Cheapflights users on 5/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/205:05 pm
SDF
- MDW
2 stops5h 50m
Southwest
Fri 7/312:45 pm
MDW
- SDF
Nonstop1h 10m
Southwest
Deal found 5/23![Southwest logo]()
$290
This United Airlines deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” 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 6/247:47 pm
SDF
- ORD
Nonstop1h 43m
United Airlines
Sat 6/274:30 pm
ORD
- SDF
Nonstop1h 31m
United Airlines
Deal found 5/20![United Airlines logo]()
$295
This Southwest deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” 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 6/248:45 am
SDF
- MDW
Nonstop1h 15m
Southwest
Thu 6/257:45 am
MDW
- SDF
Nonstop1h 20m
Southwest
Deal found 5/19![Southwest logo]()
$295
This American Airlines deal was found by Cheapflights users on 5/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/248:15 am
SDF
- ORD
1 stop5h 05m
American Airlines
Sun 6/288:00 am
ORD
- SDF
Nonstop1h 35m
American Airlines
Deal found 5/23![American Airlines logo]()
$305
This Southwest deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” 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 6/247:25 am
SDF
- MDW
2 stops8h 45m
Southwest
Tue 6/3011:25 am
MDW
- SDF
2 stops9h 15m
Southwest
Deal found 5/20![Southwest logo]()
$305
This American Airlines deal was found by Cheapflights users on 5/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/307:18 pm
SDF
- ORD
Nonstop1h 56m
American Airlines
Wed 7/17:44 pm
ORD
- SDF
Nonstop1h 35m
American Airlines
Deal found 5/23![American Airlines logo]()
$275
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 May 24, 2026.
Search for one-way flight options from Louisville to Illinois. Find affordable one-way fares based on user searches. Data last updated May 24, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/229:05 pm
SDF
- ORD
1 stop16h 19m
Multiple Airlines
Deal found 5/23![Multiple Airlines logo]()
$115
This Kiwi.com deal was found by Cheapflights users on 5/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2212:16 pm
SDF
- ORD
1 stop24h 59m
Multiple Airlines
Deal found 5/23![Multiple Airlines logo]()
$116
This Kiwi.com deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2410:39 am
SDF
- ORD
1 stop26h 46m
Multiple Airlines
Deal found 5/22![Multiple Airlines logo]()
$117
This Kiwi.com deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/179:10 pm
SDF
- ORD
1 stop16h 15m
Multiple Airlines
Deal found 5/22![Multiple Airlines logo]()
$122
This Kiwi.com deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” 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 8/149:10 pm
SDF
- ORD
1 stop16h 05m
Multiple Airlines
Deal found 5/21![Multiple Airlines logo]()
$124
This Kiwi.com deal was found by Cheapflights users on 5/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/196:52 pm
SDF
- MDW
1 stop26h 38m
Allegiant Air
Deal found 5/23![Allegiant Air logo]()
$126
This Kiwi.com deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” 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 7/68:48 pm
SDF
- ORD
1 stop16h 27m
Multiple Airlines
Deal found 5/21![Multiple Airlines logo]()
$127
This Kiwi.com deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/166:57 pm
SDF
- MDW
1 stop26h 38m
Allegiant Air
Deal found 5/21![Allegiant Air logo]()
$129
This Kiwi.com deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” 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 8/179:10 pm
SDF
- MDW
2 stops38h 59m
Multiple Airlines
Deal found 5/20![Multiple Airlines logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/126:52 pm
SDF
- MDW
1 stop26h 38m
Allegiant Air
Deal found 5/19![Allegiant Air logo]()
$135
This United Airlines deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” 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 5/296:00 am
SDF
- ORD
Nonstop1h 39m
United Airlines
Deal found 5/19![United Airlines logo]()
$138
This Southwest deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” 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 5/292:40 pm
SDF
- MDW
Nonstop1h 15m
Southwest
Deal found 5/19![Southwest logo]()
$138
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 May 24, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $246 (Kiwi.com) |
One-way from | $115 (Kiwi.com) |
Popular in | January |
Cheapest in | November |
Average price | $380 |
Good round-trip deal | $375 or less |
Good one-way deal | $203 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 May 24, 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
Sat 7/4
10:04 am-10:40 am
Nonstop1h 36m
Chicago O'Hare Intl
Sat 7/4
4:25 pm-6:56 pm
Nonstop1h 31m
$275
Quickest round-trip
LouisvilleChicago
SDF - MDW
SDFMDW
Louisville Intl
Sat 7/4
8:50 am-9:05 am
Nonstop1h 15m
Chicago Midway
Sat 7/4
3:40 pm-5:50 pm
Nonstop1h 10m
$275
LouisvilleChicago
SDF - MDW
SDFMDW
Louisville Intl
Sat 6/20
11:50 am-12:00 pm
Nonstop1h 10m
Chicago Midway
Fri 7/3
7:00 am-12:30 pm
1 stop4h 30m
$285
LouisvilleChicago
SDF - ORD
SDFORD
Louisville Intl
Sun 7/19
10:04 am-10:40 am
Nonstop1h 36m
Chicago O'Hare Intl
Wed 7/22
4:25 pm-6:56 pm
Nonstop1h 31m
$286
LouisvilleChicago
SDF - MDW
SDFMDW
Louisville Intl
Sat 10/10
9:20 am-9:35 am
Nonstop1h 15m
Chicago Midway
Mon 10/12
6:45 pm-8:55 pm
Nonstop1h 10m
$291
LouisvilleChicago
SDF - ORD
SDFORD
Louisville Intl
Tue 6/30
10:35 am-4:26 pm
1 stop6h 51m
Chicago O'Hare Intl
Wed 7/1
7:01 am-1:39 pm
1 stop5h 38m
$295
LouisvilleChicago
SDF - MDW
SDFMDW
Louisville Intl
Fri 7/3
7:49 am-12:46 pm
1 stop5h 57m
Chicago Midway
Sat 7/4
9:17 am-4:46 pm
1 stop6h 29m
$295
LouisvilleChicago
SDF - ORD
SDFORD
Louisville Intl
Wed 6/24
7:19 am-8:00 am
Nonstop1h 41m
Chicago O'Hare Intl
Sun 6/28
9:25 pm-11:59 pm
Nonstop1h 34m
$295
LouisvilleChicago
SDF - MDW
SDFMDW
Louisville Intl
Fri 6/26
3:35 pm-3:50 pm
Nonstop1h 15m
Chicago Midway
Tue 6/30
7:45 am-10:05 am
Nonstop1h 20m
$295
LouisvilleChicago
SDF - MDW
SDFMDW
Louisville Intl
Sat 6/27
7:15 pm-7:30 pm
Nonstop1h 15m
Chicago Midway
Mon 6/29
7:45 pm-9:55 pm
Nonstop1h 10m
$295
Showing 1-10 of 58 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, January is the cheapest month in which you can book a flight from Louisville to Illinois (average of $67). Flying from Louisville to Illinois in May is currently the most expensive (average of $235). 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 May 24, 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 31% versus a flight at noon.
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 May 24, 2026.
The most flights from SDF to USIL are scheduled on a Saturday (44 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (32 on average).
How much does it cost to fly round-trip from Louisville to Illinois?
How far ahead should I book a flight from Louisville to Illinois?
The price you pay for your flight from Louisville to Illinois may vary depending on when you book. For the best chance of a lower fare, look to book 41 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
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 May 23, 2026.
Travelers seeking maximum savings on their Louisville to Illinois flight should consider departing on Saturday 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.
Reviews of airlines servicing Illinois
Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated May 24, 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.
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
7.9
Crew
8.6
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
7.9
Crew
8.6
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
7.9
Crew
8.6
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
7.9
Crew
8.6
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 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 May 24, 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 May 24, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$77 | Average$215 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$97 | Average$271 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$122 | Average$307 | FlexibilityNo cancel fee | On-time69% |