$99+ 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 11/2. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — ORD
Nov 1 — Nov 81
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 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 October 2, 2026.
This United Airlines deal was found by Cheapflights users on 9/28. 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 10/2210:25 am -
Nonstop1h 40m
Mon 10/264:00 pm -
Nonstop1h 32m
Deal found 9/28![United Airlines logo]()
$197
This Southwest deal was found by Cheapflights users on 9/29. 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 10/223:35 pm -
Nonstop1h 15m
Mon 10/2612:45 pm -
Nonstop1h 15m
Deal found 9/29![Southwest logo]()
$197
This American Airlines deal was found by Cheapflights users on 9/28. 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 10/2212:46 pm -
Nonstop1h 44m
Mon 10/266:55 pm -
Nonstop1h 40m
Deal found 9/28![American Airlines logo]()
$198
This United Airlines deal was found by Cheapflights users on 9/28. 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.
Mon 10/195:15 am -
Nonstop1h 41m
Mon 10/199:25 pm -
Nonstop1h 34m
Deal found 9/28![United Airlines logo]()
$212
This Southwest deal was found by Cheapflights users on 9/30. 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 10/268:20 am -
Nonstop1h 15m
Wed 10/289:40 am -
2 stops9h 55m
Deal found 9/30![Southwest logo]()
$212
This Southwest deal was found by Cheapflights users on 9/30. 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.
Sat 11/712:45 pm -
1 stop7h 55m
Mon 11/912:50 pm -
Nonstop1h 15m
Deal found 9/30![Southwest logo]()
$213
This American Airlines deal was found by Cheapflights users on 9/29. 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 11/61:14 pm -
Nonstop1h 43m
Mon 11/92:42 pm -
Nonstop1h 31m
Deal found 9/29![American Airlines logo]()
$214
This Southwest deal was found by Cheapflights users on 9/28. 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.
Fri 11/64:40 pm -
Nonstop1h 20m
Mon 11/97:45 am -
Nonstop1h 20m
Deal found 9/28![Southwest logo]()
$214
This Delta deal was found by Cheapflights users on 9/30. 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 10/297:55 am -
1 stop3h 34m
Tue 11/36:30 am -
1 stop5h 24m
Deal found 9/30![Delta logo]()
$217
This Delta deal was found by Cheapflights users on 9/30. 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 11/125:59 pm -
1 stop5h 55m
Sat 11/1411:27 am -
1 stop4h 27m
Deal found 9/30![Delta logo]()
$217
This Southwest deal was found by Cheapflights users on 9/27. 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.
Thu 11/58:45 am -
Nonstop1h 15m
Mon 11/911:10 am -
2 stops10h 05m
Deal found 9/27![Southwest logo]()
$218
This Southwest deal was found by Cheapflights users on 9/29. 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 10/274:00 pm -
2 stops7h 00m
Thu 10/292:45 pm -
2 stops6h 50m
Deal found 9/29![Southwest logo]()
$227
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 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 October 2, 2026.
This United Airlines deal was found by Cheapflights users on 10/1. 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.
Sat 11/142:15 pm -
Nonstop1h 47m
Sat 12/52:10 pm -
Nonstop1h 29m
Deal found 10/1![United Airlines logo]()
$197
This Southwest deal was found by Cheapflights users on 9/28. 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 10/227:50 pm -
Nonstop1h 15m
Mon 10/266:55 pm -
Nonstop1h 15m
Deal found 9/28![Southwest logo]()
$197
This Delta deal was found by Cheapflights users on 10/1. 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.
Sat 11/1412:40 pm -
1 stop5h 01m
Sat 12/55:33 pm -
1 stop4h 29m
Deal found 10/1![Delta logo]()
$217
This Southwest deal was found by Cheapflights users on 10/1. 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.
Sat 11/145:00 pm -
Nonstop1h 25m
Sat 12/54:25 pm -
1 stop4h 55m
Deal found 10/1![Southwest logo]()
$207
This Delta deal was found by Cheapflights users on 9/27. 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.
Wed 10/281:59 pm -
1 stop6h 12m
Wed 11/45:05 pm -
1 stop4h 42m
Deal found 9/27![Delta logo]()
$217
This American Airlines deal was found by Cheapflights users on 9/27. 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.
Sat 11/216:21 pm -
1 stop6h 43m
Mon 11/306:00 am -
1 stop5h 43m
Deal found 9/27![American Airlines logo]()
$464
This Southwest deal was found by Cheapflights users on 9/29. 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 12/48:50 am -
Nonstop1h 15m
Mon 12/71:20 pm -
Nonstop1h 15m
Deal found 9/29![Southwest logo]()
$214
This Delta deal was found by Cheapflights users on 10/1. 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 11/91:01 pm -
1 stop7h 04m
Wed 11/115:30 am -
1 stop5h 26m
Deal found 10/1![Delta logo]()
$217
This Delta deal was found by Cheapflights users on 9/30. 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.
Wed 10/282:36 pm -
1 stop4h 24m
Wed 11/411:39 am -
1 stop6h 31m
Deal found 9/30![Delta logo]()
$217
This Southwest deal was found by Cheapflights users on 9/27. 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 11/137:55 pm -
Nonstop1h 15m
Mon 11/168:00 am -
1 stop3h 15m
Deal found 9/27![Southwest logo]()
$224
This United Airlines deal was found by Cheapflights users on 9/28. 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.
Wed 11/49:02 am -
Nonstop1h 43m
Sun 11/86:10 pm -
Nonstop1h 42m
Deal found 9/28![United Airlines logo]()
$281
This Southwest deal was found by Cheapflights users on 9/27. 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 12/1112:05 pm -
2 stops9h 00m
Mon 12/148:15 am -
Nonstop1h 15m
Deal found 9/27![Southwest logo]()
$229
This United Airlines deal was found by Cheapflights users on 9/30. 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.
Wed 11/185:10 am -
Nonstop1h 45m
Sun 11/226:59 am -
Nonstop1h 39m
Deal found 9/30![United Airlines logo]()
$281
This Delta deal was found by Cheapflights users on 9/29. 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 12/111:04 pm -
1 stop5h 02m
Mon 1/119:30 am -
1 stop4h 47m
Deal found 9/29![Delta logo]()
$234
This United Airlines deal was found by Cheapflights users on 9/30. 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.
Mon 11/97:00 am -
Nonstop1h 45m
Wed 11/114:00 pm -
Nonstop1h 32m
Deal found 9/30![United Airlines logo]()
$282
This Delta deal was found by Cheapflights users on 9/29. 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 12/47:59 pm -
1 stop4h 57m
Tue 12/86:20 am -
1 stop4h 49m
Deal found 9/29![Delta logo]()
$234
This Southwest deal was found by Cheapflights users on 9/30. 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.
Wed 11/183:50 pm -
1 stop4h 15m
Sun 11/227:45 am -
Nonstop1h 20m
Deal found 9/30![Southwest logo]()
$291
This Delta deal was found by Cheapflights users on 9/29. 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 10/227:55 am -
1 stop6h 04m
Mon 10/261:45 pm -
1 stop6h 28m
Deal found 9/29![Delta logo]()
$278
This United Airlines deal was found by Cheapflights users on 9/28. 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.
Tue 10/1310:25 am -
1 stop5h 41m
Sat 10/173:41 pm -
1 stop3h 50m
Deal found 9/28![United Airlines logo]()
$339
This American Airlines deal was found by Cheapflights users on 9/28. 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 10/136:07 pm -
1 stop7h 03m
Sat 10/176:00 am -
2 stops7h 51m
Deal found 9/28![American Airlines logo]()
$466
This Delta deal was found by Cheapflights users on 9/27. 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.
Thu 10/227:55 am -
1 stop5h 52m
Sat 10/244:19 pm -
1 stop4h 19m
Deal found 9/27![Delta logo]()
$278
This American Airlines deal was found by Cheapflights users on 9/29. 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 10/235:50 pm -
1 stop5h 11m
Sun 10/256:00 am -
1 stop5h 10m
Deal found 9/29![American Airlines logo]()
$485
This Delta deal was found by Cheapflights users on 10/1. 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 11/65:57 pm -
1 stop7h 00m
Mon 11/96:49 am -
1 stop4h 07m
Deal found 10/1![Delta logo]()
$295
This United Airlines deal was found by Cheapflights users on 9/29. 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.
Sat 10/315:57 pm -
1 stop6h 02m
Wed 11/410:40 am -
1 stop5h 22m
Deal found 9/29![United Airlines logo]()
$409
This American Airlines deal was found by Cheapflights users on 9/27. 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.
Fri 11/201:14 pm -
1 stop4h 53m
Mon 11/306:00 am -
1 stop5h 43m
Deal found 9/27![American Airlines logo]()
$499
This United Airlines deal was found by Cheapflights users on 9/28. 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.
Mon 10/267:00 am -
1 stop3h 44m
Mon 11/22:31 pm -
1 stop6h 59m
Deal found 9/28![United Airlines logo]()
$409
This American Airlines deal was found by Cheapflights users on 9/27. 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.
Sat 11/216:24 am -
1 stop18h 40m
Sun 11/295:43 pm -
1 stop14h 45m
Deal found 9/27![American Airlines logo]()
$559
This United Airlines deal was found by Cheapflights users on 9/28. 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.
Wed 10/145:15 am -
1 stop5h 57m
Mon 11/25:00 am -
1 stop3h 38m
Deal found 9/28![United Airlines logo]()
$424
This United Airlines deal was found by Cheapflights users on 9/30. 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 10/157:00 am -
1 stop4h 12m
Mon 10/192:28 pm -
1 stop5h 03m
Deal found 9/30![United Airlines logo]()
$439
This United Airlines deal was found by Cheapflights users on 9/29. 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 10/155:15 am -
1 stop5h 51m
Mon 10/193:41 pm -
1 stop3h 50m
Deal found 9/29![United Airlines logo]()
$573
Last-minute flights from Louisville to IllinoisDiscover last-minute flight deals from Louisville to Illinois. Data last updated October 2, 2026 and is based on user searches.
Discover last-minute flight deals from Louisville to Illinois. Data last updated October 2, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/28. 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.
Mon 10/195:15 am -
Nonstop1h 41m
Mon 10/199:25 pm -
Nonstop1h 34m
Deal found 9/28![United Airlines logo]()
$212
This United Airlines deal was found by Cheapflights users on 9/28. 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 10/2210:25 am -
Nonstop1h 40m
Mon 10/264:00 pm -
Nonstop1h 32m
Deal found 9/28![United Airlines logo]()
$197
This Southwest deal was found by Cheapflights users on 9/29. 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 10/223:35 pm -
Nonstop1h 15m
Mon 10/2612:45 pm -
Nonstop1h 15m
Deal found 9/29![Southwest logo]()
$197
This American Airlines deal was found by Cheapflights users on 9/28. 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 10/2212:46 pm -
Nonstop1h 44m
Mon 10/266:55 pm -
Nonstop1h 40m
Deal found 9/28![American Airlines logo]()
$198
This Southwest deal was found by Cheapflights users on 9/30. 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 10/268:20 am -
Nonstop1h 15m
Wed 10/289:40 am -
2 stops9h 55m
Deal found 9/30![Southwest logo]()
$212
This Southwest deal was found by Cheapflights users on 9/29. 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 10/274:00 pm -
2 stops7h 00m
Thu 10/292:45 pm -
2 stops6h 50m
Deal found 9/29![Southwest logo]()
$227
This Delta deal was found by Cheapflights users on 9/30. 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 10/297:55 am -
1 stop3h 34m
Tue 11/36:30 am -
1 stop5h 24m
Deal found 9/30![Delta logo]()
$217
This Southwest deal was found by Cheapflights users on 9/27. 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.
Thu 11/58:45 am -
Nonstop1h 15m
Mon 11/911:10 am -
2 stops10h 05m
Deal found 9/27![Southwest logo]()
$218
This American Airlines deal was found by Cheapflights users on 9/29. 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 11/61:14 pm -
Nonstop1h 43m
Mon 11/92:42 pm -
Nonstop1h 31m
Deal found 9/29![American Airlines logo]()
$214
This Southwest deal was found by Cheapflights users on 9/28. 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.
Fri 11/64:40 pm -
Nonstop1h 20m
Mon 11/97:45 am -
Nonstop1h 20m
Deal found 9/28![Southwest logo]()
$214
This Southwest deal was found by Cheapflights users on 9/30. 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.
Sat 11/712:45 pm -
1 stop7h 55m
Mon 11/912:50 pm -
Nonstop1h 15m
Deal found 9/30![Southwest logo]()
$213
This Delta deal was found by Cheapflights users on 9/30. 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 11/125:59 pm -
1 stop5h 55m
Sat 11/1411:27 am -
1 stop4h 27m
Deal found 9/30![Delta 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 October 2, 2026.
Search for one-way flight options from Louisville to Illinois. Find affordable one-way fares based on user searches. Data last updated October 2, 2026.
This United Airlines deal was found by Cheapflights users on 9/30. 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.
Wed 10/285:57 pm -
Nonstop1h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![United Airlines logo]()
$99
This Southwest deal was found by Cheapflights users on 9/30. 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.
Sat 11/149:10 am -
Nonstop1h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![Southwest logo]()
$99
This Delta deal was found by Cheapflights users on 9/29. 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 10/275:57 pm -
1 stop7h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![Delta logo]()
$109
This Delta deal was found by Cheapflights users on 9/30. 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.
Tue 10/272:36 pm -
1 stop4h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![Delta logo]()
$109
This Kiwi.com deal was found by Cheapflights users on 9/29. 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 10/267:08 pm -
2 stops18h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![Multiple Airlines logo]()
$111
This Southwest deal was found by Cheapflights users on 9/28. 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.
Tue 10/204:00 pm -
2 stops7h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Southwest logo]()
$114
This United Airlines deal was found by Cheapflights users on 10/1. 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.
Fri 10/3010:27 am -
Nonstop1h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![United Airlines logo]()
$116
This Southwest deal was found by Cheapflights users on 10/1. 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 10/307:50 pm -
Nonstop1h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![Southwest logo]()
$116
This Kiwi.com deal was found by Cheapflights users on 9/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/138:54 pm -
1 stop19h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![Multiple Airlines logo]()
$118
This Delta deal was found by Cheapflights users on 9/29. 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 10/302:36 pm -
1 stop6h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![Delta logo]()
$126
This Delta deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/305:57 pm -
1 stop5h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![Delta logo]()
$126
This Kiwi.com deal was found by Cheapflights users on 9/29. 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 10/308:10 pm -
2 stops17h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![Multiple Airlines logo]()
$132
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 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $197 (United Airlines) |
One-way from | $99 (American Airlines) |
Popular in | January |
Cheapest in | December |
Average price | $283 |
Good round-trip deal | $358 or less |
Good one-way deal | $190 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 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 Louisville Intl - ORD Chicago O'Hare Intl
SDFORD
Louisville Intl
Mon 11/2
9:02 am-9:45 am
Nonstop1h 43m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$99
LouisvilleChicago
SDF Louisville Intl - MDW Chicago Midway
SDFMDW
Louisville Intl
Sat 11/14
5:00 pm-5:25 pm
Nonstop1h 25m
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
Tue 10/27
9:17 am-10:00 am
Nonstop1h 43m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$99
Quickest round-trip
LouisvilleChicago
SDF Louisville Intl - MDW Chicago Midway
SDFMDW
Louisville Intl
Mon 10/26
3:35 pm-3:50 pm
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
Thu 10/29
9:02 am-9:45 am
Nonstop1h 43m
Chicago O'Hare Intl
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 10/24
6:00 am-9:25 am
1 stop4h 25m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$109
LouisvilleChicago
SDF Louisville Intl - ORD Chicago O'Hare Intl
SDFORD
Louisville Intl
Thu 12/17
3:18 pm-8:15 pm
1 stop5h 57m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$109
LouisvilleChicago
SDF Louisville Intl - ORD Chicago O'Hare Intl
SDFORD
Louisville Intl
Mon 10/26
5:38 pm-8:30 pm
1 stop3h 52m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$109
LouisvilleChicago
SDF Louisville Intl - MDW Chicago Midway
SDFMDW
Louisville Intl
Wed 11/11
3:50 pm-7:05 pm
1 stop4h 15m
Chicago Midway
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$109
LouisvilleChicago
SDF Louisville Intl - MDW Chicago Midway
SDFMDW
Louisville Intl
Tue 10/27
2:36 pm-6:00 pm
1 stop4h 24m
Chicago Midway
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$109
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-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-PIA
SDF-MLI
What is the cheapest month to book a flight from Louisville to Illinois?
Currently, December is the cheapest month in which you can book a flight from Louisville to Illinois (average of $266). Flying from Louisville to Illinois in September is currently the most expensive (average of $401). 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 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 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 October 2, 2026.
The most flights from SDF to USIL are scheduled on a Thursday (45 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (20 on average).
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 $285 and $534 in October.The cheapest round-trip price found within the last 5 days was $197 on United Airlines (Oct 22-Oct 26).
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 September 26, 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 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.
Crew
8.6
Entertainment
7.5
Food
7.0
Comfort
8.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Crew
8.6
Entertainment
7.5
Food
7.0
Comfort
8.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Crew
8.6
Entertainment
7.5
Food
7.0
Comfort
8.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Crew
8.6
Entertainment
7.5
Food
7.0
Comfort
8.0
Overall
8.0
Boarding
8.1
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 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 7,457,451 searches. Data last updated October 2, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$178 | Average$398 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$187 | Average$318 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$208 | Average$313 | FlexibilityNo cancel fee | On-time71% |