$94+ Cheap flights from Illinois to Louisville (SDF)
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 11/19. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SDF
Nov 29 — Dec 61
Round-trip
1 adult, Economy
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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 Illinois to LouisvilleExplore the most affordable flight options available from Illinois to Louisville. 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 Illinois to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2026.
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 11/196:10 pm -
Nonstop1h 42m
Mon 11/239:02 am -
Nonstop1h 43m
Deal found 10/28![United 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 11/198:15 am -
Nonstop1h 15m
Mon 11/237:55 pm -
Nonstop1h 15m
Deal found 10/29![Southwest logo]()
$187
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.
Thu 11/1910:11 am -
Nonstop1h 32m
Mon 11/236:31 pm -
Nonstop1h 59m
Deal found 10/29![American Airlines logo]()
$188
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.
Thu 12/310:00 am -
Nonstop1h 40m
Fri 12/410:13 am -
Nonstop1h 47m
Deal found 10/29![American Airlines logo]()
$192
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.
Fri 12/188:29 am -
Nonstop1h 35m
Sat 1/96:10 am -
Nonstop1h 49m
Deal found 10/30![American 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.
Sat 12/127:55 am -
Nonstop1h 20m
Sat 12/1212:45 pm -
1 stop7h 50m
Deal found 10/28![Southwest logo]()
$203
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 12/116:20 pm -
Nonstop1h 40m
Mon 12/145:40 pm -
Nonstop1h 48m
Deal found 10/28![United Airlines logo]()
$206
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.
Fri 12/46:15 pm -
Nonstop1h 20m
Mon 12/77:35 pm -
Nonstop1h 15m
Deal found 10/28![Southwest logo]()
$206
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 11/195:30 am -
1 stop5h 26m
Mon 11/2310:49 am -
1 stop6h 29m
Deal found 10/29![Delta logo]()
$207
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 12/15:30 pm -
1 stop4h 32m
Mon 12/73:18 pm -
1 stop3h 43m
Deal found 10/26![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 12/35:33 pm -
1 stop4h 29m
Fri 12/410:59 am -
1 stop3h 57m
Deal found 10/29![Delta logo]()
$212
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.
Fri 12/116:10 pm -
1 stop5h 15m
Mon 12/142:05 pm -
Nonstop1h 20m
Deal found 10/28![Southwest logo]()
$216
Best flights from Illinois to LouisvilleDiscover carefully curated flight deals from Illinois to Louisville 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 Illinois to Louisville 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.
Wed 11/257:40 am -
Nonstop1h 20m
Wed 12/28:50 am -
Nonstop1h 15m
Deal found 10/26![Southwest logo]()
$187
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 11/196:10 pm -
Nonstop1h 42m
Mon 11/239:02 am -
Nonstop1h 43m
Deal found 10/28![United Airlines 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.
Wed 11/252:44 pm -
1 stop5h 29m
Wed 12/21:04 pm -
1 stop5h 02m
Deal found 10/28![Delta logo]()
$207
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.
Fri 11/204:00 pm -
Nonstop1h 32m
Mon 11/239:02 am -
Nonstop1h 43m
Deal found 10/30![United Airlines logo]()
$197
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.
Tue 11/176:23 am -
1 stop4h 37m
Tue 11/2410:49 am -
1 stop6h 29m
Deal found 10/27![Delta logo]()
$207
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 11/135:03 pm -
1 stop3h 34m
Tue 11/179:44 am -
2 stops7h 44m
Deal found 10/29![American Airlines logo]()
$442
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.
Thu 12/108:15 am -
Nonstop1h 15m
Sun 12/135:40 am -
1 stop11h 20m
Deal found 10/27![Southwest logo]()
$242
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.
Thu 12/35:33 pm -
1 stop4h 29m
Fri 12/410:59 am -
1 stop3h 57m
Deal found 10/27![Delta logo]()
$226
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 12/109:20 pm -
Nonstop1h 29m
Sun 12/139:00 am -
Nonstop1h 45m
Deal found 10/26![United Airlines logo]()
$226
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 12/187:05 am -
1 stop6h 43m
Sat 1/93:59 pm -
1 stop7h 21m
Deal found 10/29![Delta logo]()
$245
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.
Thu 11/1911:30 am -
2 stops8h 10m
Mon 11/2312:05 pm -
2 stops9h 00m
Deal found 10/27![Southwest logo]()
$283
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.
Fri 12/181:41 pm -
1 stop6h 36m
Sat 1/93:59 pm -
1 stop7h 18m
Deal found 10/28![Delta logo]()
$272
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.
Tue 11/2411:25 am -
Nonstop1h 10m
Mon 11/308:35 pm -
Nonstop1h 25m
Deal found 10/29![Southwest logo]()
$316
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/33:45 pm -
Nonstop1h 32m
Fri 12/49:55 am -
1 stop5h 28m
Deal found 10/27![United Airlines logo]()
$318
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.
Sun 11/299:50 pm -
Nonstop1h 15m
Tue 12/12:05 pm -
Nonstop1h 20m
Deal found 10/28![Southwest logo]()
$316
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 12/106:00 am -
1 stop7h 04m
Sun 12/138:05 am -
1 stop4h 59m
Deal found 10/26![Delta logo]()
$292
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.
Tue 11/102:35 pm -
1 stop5h 17m
Sat 11/149:17 am -
1 stop5h 36m
Deal found 10/26![United Airlines logo]()
$339
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.
Tue 11/247:40 am -
Nonstop1h 20m
Sun 11/299:35 pm -
Nonstop1h 15m
Deal found 10/29![Southwest logo]()
$316
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/122:35 pm -
1 stop6h 55m
Mon 11/167:00 am -
1 stop4h 08m
Deal found 10/27![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.
Thu 11/126:00 am -
2 stops8h 00m
Mon 11/166:27 am -
1 stop5h 23m
Deal found 10/28![American Airlines logo]()
$557
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 11/1210:40 am -
1 stop5h 22m
Mon 11/165:57 pm -
1 stop6h 02m
Deal found 10/28![United Airlines logo]()
$349
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 11/135:13 pm -
1 stop4h 40m
Tue 11/176:00 am -
1 stop5h 19m
Deal found 10/29![Delta logo]()
$349
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.
Tue 11/106:02 am -
2 stops10h 10m
Sat 11/146:04 am -
2 stops12h 03m
Deal found 10/26![American Airlines logo]()
$571
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.
Sat 11/146:02 am -
2 stops9h 04m
Wed 11/189:44 am -
2 stops8h 23m
Deal found 10/29![American Airlines logo]()
$571
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/192:35 pm -
1 stop6h 55m
Mon 11/232:10 pm -
1 stop3h 37m
Deal found 10/27![United Airlines logo]()
$399
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.
Thu 11/126:02 am -
2 stops7h 58m
Mon 11/166:31 pm -
1 stop6h 32m
Deal found 10/27![American Airlines logo]()
$572
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.
Wed 1/272:26 pm -
1 stop5h 03m
Sun 1/315:43 pm -
1 stop5h 01m
Deal found 10/25![United Airlines logo]()
$409
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.
Sat 1/233:46 pm -
1 stop3h 43m
Wed 1/272:05 pm -
1 stop5h 01m
Deal found 10/29![United Airlines logo]()
$409
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.
Thu 11/195:00 am -
1 stop6h 43m
Mon 11/236:31 pm -
1 stop6h 36m
Deal found 10/26![American Airlines logo]()
$635
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 11/132:35 pm -
1 stop6h 55m
Tue 11/175:57 pm -
1 stop6h 16m
Deal found 10/28![United Airlines logo]()
$429
Last-minute flights from Illinois to LouisvilleDiscover last-minute flight deals from Illinois to Louisville. Data last updated October 30, 2026 and is based on user searches.
Discover last-minute flight deals from Illinois to Louisville. Data last updated October 30, 2026 and is based on user searches.
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/162:42 pm -
Nonstop1h 31m
Thu 11/261:14 pm -
Nonstop1h 43m
Deal found 10/25![American Airlines logo]()
$225
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/165:30 am -
1 stop5h 26m
Thu 11/264:55 pm -
1 stop7h 25m
Deal found 10/25![Delta logo]()
$245
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/174:00 pm -
Nonstop1h 32m
Wed 11/1810:37 am -
Nonstop1h 45m
Deal found 10/27![United Airlines logo]()
$277
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.
Wed 11/187:08 am -
Nonstop1h 30m
Sun 11/2210:01 am -
Nonstop1h 48m
Deal found 10/27![American Airlines logo]()
$226
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.
Wed 11/186:15 pm -
Nonstop1h 20m
Sun 11/224:40 pm -
Nonstop1h 20m
Deal found 10/27![Southwest logo]()
$226
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.
Wed 11/186:49 am -
1 stop6h 26m
Sun 11/223:14 pm -
1 stop6h 03m
Deal found 10/27![Delta logo]()
$246
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 11/196:10 pm -
Nonstop1h 42m
Mon 11/239:02 am -
Nonstop1h 43m
Deal found 10/28![United 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 11/198:15 am -
Nonstop1h 15m
Mon 11/237:55 pm -
Nonstop1h 15m
Deal found 10/29![Southwest logo]()
$187
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.
Thu 11/1910:11 am -
Nonstop1h 32m
Mon 11/236:31 pm -
Nonstop1h 59m
Deal found 10/29![American Airlines logo]()
$188
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 11/195:30 am -
1 stop5h 26m
Mon 11/2310:49 am -
1 stop6h 29m
Deal found 10/29![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 11/199:30 am -
1 stop3h 54m
Mon 11/2312:40 pm -
1 stop4h 59m
Deal found 10/28![Delta logo]()
$207
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.
Sat 11/2110:30 am -
Nonstop1h 32m
Fri 11/276:30 pm -
Nonstop1h 59m
Deal found 10/29![American Airlines logo]()
$206
One-way flights from Illinois to LouisvilleSearch for one-way flight options from Illinois to Louisville. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
Search for one-way flight options from Illinois to Louisville. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
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 11/196:59 am -
Nonstop1h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![United 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.
Tue 11/247:40 am -
Nonstop1h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Southwest logo]()
$94
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.
Wed 2/106:54 am -
Nonstop1h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![American Airlines logo]()
$99
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 11/242:44 pm -
1 stop5h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Delta logo]()
$104
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 11/186:00 am -
1 stop6h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Southwest 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.
Wed 2/109:50 am -
1 stop6h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Delta logo]()
$109
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 11/216:55 pm -
Nonstop1h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Southwest logo]()
$113
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 2/105:45 pm -
1 stop5h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Delta logo]()
$123
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 11/206:40 pm -
Nonstop1h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Southwest logo]()
$126
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 12/117:50 am -
2 stops8h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Southwest logo]()
$128
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.
Sun 12/132:49 pm -
Nonstop1h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![American Airlines logo]()
$133
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.
Sun 12/137:45 am -
Nonstop1h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Southwest logo]()
$133
Find flight deals from Illinois to Louisville
Keep the following information in mind while searching for Illinois to Louisville 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 (Southwest) |
One-way from | $94 (United Airlines) |
Popular in | September |
Cheapest in | December |
Average price | $345 |
Good round-trip deal | $281 or less |
Good one-way deal | $149 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Illinois to Louisville 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 Illinois to Louisville that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ChicagoLouisville
ORD Chicago O'Hare Intl - SDF Louisville Intl
ORDSDF
Chicago O'Hare Intl
Wed 11/18
4:00 pm-6:32 pm
Nonstop1h 32m
Louisville Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$94
ChicagoLouisville
ORD Chicago O'Hare Intl - SDF Louisville Intl
ORDSDF
Chicago O'Hare Intl
Thu 12/3
6:47 am-9:22 am
Nonstop1h 35m
Louisville Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$94
ChicagoLouisville
MDW Chicago Midway - SDF Louisville Intl
MDWSDF
Chicago Midway
Wed 11/18
6:15 pm-8:35 pm
Nonstop1h 20m
Louisville Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$94
Quickest round-trip
ChicagoLouisville
MDW Chicago Midway - SDF Louisville Intl
MDWSDF
Chicago Midway
Thu 12/10
8:15 am-10:30 am
Nonstop1h 15m
Louisville Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$94
ChicagoLouisville
ORD Chicago O'Hare Intl - SDF Louisville Intl
ORDSDF
Chicago O'Hare Intl
Wed 2/10
6:54 am-9:29 am
Nonstop1h 35m
Louisville Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$99
ChicagoLouisville
ORD Chicago O'Hare Intl - SDF Louisville Intl
ORDSDF
Chicago O'Hare Intl
Wed 11/18
5:30 am-11:56 am
1 stop5h 26m
Louisville Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$104
ChicagoLouisville
ORD Chicago O'Hare Intl - SDF Louisville Intl
ORDSDF
Chicago O'Hare Intl
Thu 12/10
11:35 am-4:53 pm
1 stop4h 18m
Louisville Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$104
ChicagoLouisville
ORD Chicago O'Hare Intl - SDF Louisville Intl
ORDSDF
Chicago O'Hare Intl
Thu 11/26
11:18 am-3:59 pm
1 stop3h 41m
Louisville Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$104
ChicagoLouisville
ORD Chicago O'Hare Intl - SDF Louisville Intl
ORDSDF
Chicago O'Hare Intl
Wed 2/10
9:50 am-5:02 pm
1 stop6h 12m
Louisville Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$109
ChicagoLouisville
MDW Chicago Midway - SDF Louisville Intl
MDWSDF
Chicago Midway
Wed 2/10
5:45 pm-11:59 pm
1 stop5h 14m
Louisville Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$109
Showing 1-10 of 52 resultsSorted by cheapest first
Best time to book a flight from Illinois to Louisville
Have a flexible travel schedule? Discover the best time to fly to Louisville from Illinois with our price prediction graph.
ORD-SDF
MDW-SDF
MLI-SDF
PIA-SDF
BMI-SDF
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Illinois to Louisville
USIL-SDF
ORD-SDF
MDW-SDF
MLI-SDF
PIA-SDF
What is the cheapest month to book a flight from Illinois to Louisville?
Currently, December is the cheapest month in which you can book a flight from Illinois to Louisville (average of $309). Flying from Illinois to Louisville in June is currently the most expensive (average of $488). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from IL to SDF?
Find hourly flight availability from Illinois to Louisville. 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.
One of the essential ways to save on airfare from Illinois to Louisville is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the morning could potentially save you up to 25% on airfare.
How much does it cost to fly round-trip from Illinois to Louisville?
Airfare is below average for this route at the moment.
Illinois to Louisville flights typically cost between $248 and $479 in November.The cheapest round-trip price found within the last 5 days was $187 on United Airlines (Nov 19-Nov 23).
How far ahead should I book a flight from Illinois to Louisville?
Booking 34 days in advance of your planned departure date is, on average, the best time to get cheap flights from Illinois to Louisville. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest day to fly from Illinois to Louisville?
Use this chart to determine the cheapest time to fly round-trip from Illinois to Louisville. Price data was last updated on October 24, 2026.
Travelers seeking maximum savings on their Illinois to Louisville flight should consider departing on Saturday afternoons when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Related info for your journey
Find useful and relevant information for your journey from Illinois to Louisville. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Louisville?
Book flights to Louisville if you plan to visit one of these locationsShepherdsville
Elizabethtown
Jeffersonville
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Alternative routes for Illinois to Louisville
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Complete your trip
Complete your trip to Louisville by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Illinois to Louisville by cabin class
Find flights from Illinois to Louisville, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Louisville
Explore flights to Louisville departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 30, 2026.
Illinois and Louisville flights
Browse other Illinois and Louisville flight options. Last updated on October 30, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Illinois to Louisville flights
Consider these flights traveling from Illinois to Louisville.
Top 3 airlines flying from Illinois to Louisville
Discover the top 3 airlines that operate flights from Illinois to Louisville. 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$157 | Average$414 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$197 | Average$360 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$206 | Average$411 | FlexibilityNo cancel fee | On-time63% |