$94+ Cheap flights from Louisville (SDF) to Illinois
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/5. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — ORD
Nov 29 — Dec 61
Round-trip
1 adult, Economy
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Find cheap flights from Louisville to Illinois with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from 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 October 30, 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 October 30, 2026.
This American Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/2410:01 am -
Nonstop1h 48m
Tue 12/16:54 am -
Nonstop1h 34m
Deal found 10/27![American Airlines logo]()
$187
This Southwest deal was found by Cheapflights users on 10/29. 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 11/197:35 pm -
Nonstop1h 15m
Tue 11/247:40 am -
Nonstop1h 20m
Deal found 10/29![Southwest logo]()
$187
This Southwest deal was found by Cheapflights users on 10/30. 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 12/174:40 pm -
Nonstop1h 20m
Tue 12/227:40 am -
Nonstop1h 20m
Deal found 10/30![Southwest logo]()
$192
This United Airlines deal was found by Cheapflights users on 10/30. 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 12/178:45 am -
Nonstop1h 49m
Tue 12/226:10 pm -
Nonstop1h 46m
Deal found 10/30![United Airlines logo]()
$197
This Southwest deal was found by Cheapflights users on 10/28. 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.
Thu 11/192:05 pm -
Nonstop1h 20m
Mon 11/235:05 am -
1 stop6h 25m
Deal found 10/28![Southwest logo]()
$197
This Southwest deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/248:35 pm -
Nonstop1h 25m
Tue 12/111:30 am -
2 stops8h 10m
Deal found 10/27![Southwest logo]()
$202
This American Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/246:30 pm -
Nonstop1h 59m
Fri 11/2710:11 am -
Nonstop1h 32m
Deal found 10/27![American Airlines logo]()
$206
This Southwest deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 12/32:05 pm -
Nonstop1h 20m
Fri 12/41:20 pm -
Nonstop1h 15m
Deal found 10/25![Southwest logo]()
$206
This Delta deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 11/1712:40 pm -
1 stop5h 01m
Mon 11/236:49 am -
1 stop4h 07m
Deal found 10/26![Delta logo]()
$207
This Delta deal was found by Cheapflights users on 10/28. 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.
Thu 11/193:14 pm -
1 stop3h 50m
Mon 11/2310:34 am -
1 stop6h 37m
Deal found 10/28![Delta logo]()
$207
This Delta deal was found by Cheapflights users on 10/29. 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 12/1712:50 pm -
1 stop4h 53m
Fri 12/257:00 am -
1 stop3h 50m
Deal found 10/29![Delta logo]()
$212
This Delta deal was found by Cheapflights users on 10/29. 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 12/1810:59 am -
1 stop6h 18m
Fri 12/257:00 am -
1 stop3h 50m
Deal found 10/29![Delta logo]()
$217
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 October 30, 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 October 30, 2026.
This Southwest deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 11/197:50 am -
1 stop8h 00m
Mon 11/236:40 pm -
Nonstop1h 25m
Deal found 10/26![Southwest logo]()
$197
This Delta deal was found by Cheapflights users on 10/28. 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 12/810:13 am -
1 stop5h 36m
Wed 12/95:30 am -
1 stop5h 27m
Deal found 10/28![Delta logo]()
$207
This United Airlines deal was found by Cheapflights users on 10/29. 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.
Thu 12/1710:00 am -
Nonstop1h 45m
Fri 12/257:55 pm -
Nonstop1h 44m
Deal found 10/29![United Airlines logo]()
$282
This Southwest deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 11/185:40 am -
1 stop4h 20m
Wed 11/186:15 pm -
Nonstop1h 20m
Deal found 10/26![Southwest logo]()
$197
This Southwest deal was found by Cheapflights users on 10/29. 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 11/268:55 am -
Nonstop1h 15m
Thu 12/311:30 am -
2 stops8h 10m
Deal found 10/29![Southwest logo]()
$202
This American Airlines deal was found by Cheapflights users on 10/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/136:31 pm -
1 stop6h 32m
Tue 11/176:02 am -
2 stops10h 10m
Deal found 10/29![American Airlines logo]()
$455
This Delta deal was found by Cheapflights users on 10/29. 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 12/115:59 pm -
1 stop6h 57m
Fri 12/187:05 am -
1 stop6h 43m
Deal found 10/29![Delta logo]()
$245
This Delta deal was found by Cheapflights users on 10/28. 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.
Wed 1/275:59 pm -
1 stop5h 21m
Thu 1/281:54 pm -
1 stop6h 38m
Deal found 10/28![Delta logo]()
$245
This Southwest deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 1/158:15 pm -
Nonstop1h 20m
Mon 1/187:05 pm -
Nonstop1h 15m
Deal found 10/26![Southwest logo]()
$225
This United Airlines deal was found by Cheapflights users on 10/29. 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.
Wed 12/237:00 am -
Nonstop1h 49m
Tue 12/294:15 pm -
Nonstop1h 32m
Deal found 10/29![United Airlines logo]()
$287
This Delta deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 1/287:59 pm -
1 stop4h 56m
Fri 1/295:40 pm -
1 stop4h 45m
Deal found 10/26![Delta logo]()
$245
This Southwest deal was found by Cheapflights users on 10/28. 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.
Sat 12/127:10 am -
2 stops11h 15m
Sat 12/196:55 pm -
Nonstop1h 15m
Deal found 10/28![Southwest logo]()
$227
This United Airlines deal was found by Cheapflights users on 10/29. 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.
Tue 1/58:50 am -
Nonstop1h 45m
Sat 1/95:50 pm -
Nonstop1h 39m
Deal found 10/29![United Airlines logo]()
$287
This Delta deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 12/125:59 pm -
1 stop5h 55m
Sun 12/136:00 am -
1 stop4h 57m
Deal found 10/26![Delta logo]()
$246
This Southwest deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 11/248:35 pm -
Nonstop1h 25m
Tue 12/11:15 pm -
2 stops8h 00m
Deal found 10/25![Southwest logo]()
$240
This United Airlines deal was found by Cheapflights users on 10/28. 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.
Fri 1/18:45 am -
Nonstop1h 49m
Sun 1/37:55 pm -
Nonstop1h 44m
Deal found 10/28![United Airlines logo]()
$305
This Delta deal was found by Cheapflights users on 10/29. 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 12/113:18 pm -
1 stop5h 57m
Sun 12/136:20 am -
1 stop4h 49m
Deal found 10/29![Delta logo]()
$265
This United Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 11/195:10 am -
Nonstop1h 45m
Sun 11/228:50 am -
1 stop4h 57m
Deal found 10/26![United Airlines logo]()
$318
This Delta deal was found by Cheapflights users on 10/29. 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 12/226:53 am -
1 stop5h 08m
Mon 12/286:00 am -
1 stop4h 27m
Deal found 10/29![Delta logo]()
$278
This Southwest deal was found by Cheapflights users on 10/29. 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.
Fri 12/1112:05 pm -
2 stops9h 00m
Sun 12/137:50 am -
2 stops8h 10m
Deal found 10/29![Southwest logo]()
$288
This United Airlines deal was found by Cheapflights users on 10/29. 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.
Mon 11/239:55 am -
1 stop5h 43m
Sat 12/52:10 pm -
Nonstop1h 29m
Deal found 10/29![United Airlines logo]()
$318
This American Airlines deal was found by Cheapflights users on 10/30. 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.
Sat 11/146:11 pm -
1 stop6h 48m
Wed 11/182:34 pm -
1 stop6h 02m
Deal found 10/30![American Airlines logo]()
$527
This United Airlines deal was found by Cheapflights users on 10/29. 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 11/135:57 pm -
1 stop6h 16m
Sun 11/152:35 pm -
1 stop5h 17m
Deal found 10/29![United Airlines logo]()
$339
This Southwest deal was found by Cheapflights users on 10/28. 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.
Thu 11/268:55 am -
Nonstop1h 15m
Sun 11/297:40 am -
Nonstop1h 20m
Deal found 10/28![Southwest logo]()
$316
This United Airlines deal was found by Cheapflights users on 10/28. 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 11/127:00 am -
1 stop4h 08m
Mon 11/165:30 pm -
1 stop4h 00m
Deal found 10/28![United Airlines logo]()
$339
This American Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 12/46:26 pm -
1 stop6h 37m
Sun 12/65:44 am -
1 stop5h 49m
Deal found 10/26![American Airlines logo]()
$553
This United Airlines deal was found by Cheapflights users on 10/29. 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 11/135:10 am -
1 stop5h 58m
Tue 11/175:30 pm -
1 stop4h 00m
Deal found 10/29![United Airlines logo]()
$339
This American Airlines deal was found by Cheapflights users on 10/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/257:30 am -
2 stops10h 02m
Wed 12/25:53 am -
2 stops8h 54m
Deal found 10/28![American Airlines logo]()
$555
This American Airlines deal was found by Cheapflights users on 10/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/126:31 pm -
1 stop6h 32m
Mon 11/166:02 am -
2 stops10h 10m
Deal found 10/28![American Airlines logo]()
$572
This American Airlines deal was found by Cheapflights users on 10/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/136:31 pm -
1 stop6h 32m
Sun 11/156:02 am -
2 stops10h 23m
Deal found 10/29![American Airlines logo]()
$572
Last-minute flights from Louisville to IllinoisDiscover last-minute flight deals from Louisville to Illinois. Data last updated October 30, 2026 and is based on user searches.
Discover last-minute flight deals from Louisville to Illinois. Data last updated October 30, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 11/177:50 am -
1 stop3h 49m
Tue 11/172:44 pm -
1 stop5h 29m
Deal found 10/26![Delta logo]()
$207
This Southwest deal was found by Cheapflights users on 10/28. 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.
Thu 11/198:50 am -
Nonstop1h 15m
Mon 11/237:45 am -
Nonstop1h 20m
Deal found 10/28![Southwest logo]()
$187
This Delta deal was found by Cheapflights users on 10/28. 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.
Thu 11/193:14 pm -
1 stop3h 50m
Mon 11/2310:34 am -
1 stop6h 37m
Deal found 10/28![Delta logo]()
$207
This Southwest deal was found by Cheapflights users on 10/29. 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 11/195:40 am -
1 stop4h 20m
Tue 11/2411:25 am -
Nonstop1h 10m
Deal found 10/29![Southwest logo]()
$216
This United Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 11/199:02 am -
Nonstop1h 43m
Mon 11/237:55 pm -
Nonstop1h 35m
Deal found 10/25![United Airlines logo]()
$225
This Delta deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 11/207:50 am -
1 stop3h 49m
Wed 11/252:44 pm -
1 stop5h 29m
Deal found 10/26![Delta logo]()
$226
This Delta deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 11/2012:40 pm -
1 stop4h 59m
Sat 11/215:29 pm -
1 stop4h 17m
Deal found 10/26![Delta logo]()
$226
This Southwest deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 11/218:20 pm -
Nonstop1h 20m
Wed 11/257:40 am -
Nonstop1h 20m
Deal found 10/25![Southwest logo]()
$225
This American Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/2410:01 am -
Nonstop1h 48m
Tue 12/16:54 am -
Nonstop1h 34m
Deal found 10/27![American Airlines logo]()
$187
This Southwest deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/248:35 pm -
Nonstop1h 25m
Tue 12/111:30 am -
2 stops8h 10m
Deal found 10/27![Southwest logo]()
$202
This American Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/246:30 pm -
Nonstop1h 59m
Fri 11/2710:11 am -
Nonstop1h 32m
Deal found 10/27![American Airlines logo]()
$206
This Southwest deal was found by Cheapflights users on 10/29. 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 11/266:45 am -
1 stop10h 35m
Thu 12/311:30 am -
2 stops8h 10m
Deal found 10/29![Southwest logo]()
$218
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 October 30, 2026.
Search for one-way flight options from Louisville to Illinois. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
This American Airlines deal was found by Cheapflights users on 10/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/241:17 pm -
Nonstop1h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![American Airlines logo]()
$94
This Southwest deal was found by Cheapflights users on 10/29. 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 11/198:50 am -
Nonstop1h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Southwest logo]()
$94
This Southwest deal was found by Cheapflights users on 10/29. 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.
Fri 12/188:25 am -
Nonstop1h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Southwest logo]()
$99
This Delta deal was found by Cheapflights users on 10/28. 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 11/2412:40 pm -
1 stop5h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Delta logo]()
$104
This Delta deal was found by Cheapflights users on 10/29. 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 11/1910:13 am -
1 stop7h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Delta logo]()
$104
This American Airlines deal was found by Cheapflights users on 10/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/910:17 am -
Nonstop1h 48m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![American Airlines logo]()
$113
This Southwest deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/277:55 pm -
Nonstop1h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Southwest logo]()
$113
This Delta deal was found by Cheapflights users on 10/29. 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.
Sat 1/95:40 am -
1 stop5h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Delta logo]()
$123
This Delta deal was found by Cheapflights users on 10/29. 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.
Sat 1/97:30 am -
1 stop6h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Delta logo]()
$123
This Southwest deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 12/1112:05 pm -
2 stops9h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Southwest logo]()
$128
This United Airlines deal was found by Cheapflights users on 10/29. 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.
Thu 12/1010:25 am -
Nonstop1h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![United Airlines logo]()
$139
This Delta deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/275:59 pm -
1 stop5h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Delta logo]()
$143
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 October 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $187 (American Airlines) |
One-way from | $94 (American Airlines) |
Popular in | August |
Cheapest in | January |
Average price | $291 |
Good round-trip deal | $327 or less |
Good one-way deal | $213 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 7,457,451 searches. Data last updated October 30, 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 Louisville Intl - ORD Chicago O'Hare Intl
SDFORD
Louisville Intl
Sat 12/5
10:13 am-11:00 am
Nonstop1h 47m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$94
LouisvilleChicago
SDF Louisville Intl - MDW Chicago Midway
SDFMDW
Louisville Intl
Sat 11/21
8:20 pm-8:40 pm
Nonstop1h 20m
Chicago Midway
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$94
Quickest round-trip
LouisvilleChicago
SDF Louisville Intl - MDW Chicago Midway
SDFMDW
Louisville Intl
Fri 12/18
8:25 am-8:40 am
Nonstop1h 15m
Chicago Midway
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$99
LouisvilleChicago
SDF Louisville Intl - ORD Chicago O'Hare Intl
SDFORD
Louisville Intl
Sat 12/5
6:35 am-11:52 am
1 stop6h 17m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$104
LouisvilleChicago
SDF Louisville Intl - ORD Chicago O'Hare Intl
SDFORD
Louisville Intl
Sat 11/21
12:40 pm-4:41 pm
1 stop5h 01m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$104
LouisvilleChicago
SDF Louisville Intl - ORD Chicago O'Hare Intl
SDFORD
Louisville Intl
Tue 11/24
12:40 pm-4:41 pm
1 stop5h 01m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$104
LouisvilleChicago
SDF Louisville Intl - MDW Chicago Midway
SDFMDW
Louisville Intl
Thu 11/19
10:13 am-4:18 pm
1 stop7h 05m
Chicago Midway
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$104
LouisvilleChicago
SDF Louisville Intl - MDW Chicago Midway
SDFMDW
Louisville Intl
Sat 11/21
5:59 pm-10:54 pm
1 stop5h 55m
Chicago Midway
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$104
LouisvilleChicago
SDF Louisville Intl - MDW Chicago Midway
SDFMDW
Louisville Intl
Fri 12/11
4:40 pm-5:00 pm
Nonstop1h 20m
Chicago Midway
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$113
LouisvilleChicago
SDF Louisville Intl - MDW Chicago Midway
SDFMDW
Louisville Intl
Fri 11/27
7:55 pm-8:10 pm
Nonstop1h 15m
Chicago Midway
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$113
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-BMI
SDF-PIA
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-BMI
SDF-PIA
What is the cheapest month to book a flight from Louisville to Illinois?
Currently, March is the cheapest month in which you can book a flight from Louisville to Illinois (average of $277). Flying from Louisville to Illinois in August is currently the most expensive (average of $391). 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 October 30, 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.
How much does it cost to fly round-trip from Louisville to Illinois?
Airfare is below average for this route at the moment.
Louisville to Illinois flights typically cost between $197 and $306 in November.The cheapest round-trip price found within the last 5 days was $187 on American Airlines (Nov 24-Dec 1).
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 October 24, 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.
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 October 30, 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.
Crew
8.6
Boarding
8.1
Overall
7.9
Comfort
8.0
Entertainment
7.4
Food
7.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Crew
8.6
Boarding
8.1
Overall
7.9
Comfort
8.0
Entertainment
7.4
Food
7.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Crew
8.6
Boarding
8.1
Overall
7.9
Comfort
8.0
Entertainment
7.4
Food
7.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Crew
8.6
Boarding
8.1
Overall
7.9
Comfort
8.0
Entertainment
7.4
Food
7.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
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 October 30, 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 7,457,451 searches. Data last updated October 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$178 | Average$393 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$187 | Average$337 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$197 | Average$314 | FlexibilityNo cancel fee | On-time71% |