$101+ Cheap flights from Louisville (SDF) to Illinois
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/26. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — ORD
Jun 17 — Jun 241
Round-trip
1 adult, Economy
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Find cheap flights from Louisville to Illinois with Cheapflights
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Cheapest flights from Louisville to IllinoisExplore the most affordable flight options available from Louisville to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 18, 2026.
Explore the most affordable flight options available from Louisville to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 18, 2026.
This American Airlines deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/306:51 am
SDF
- ORD
Nonstop1h 47m
American Airlines
Wed 7/18:00 am
ORD
- SDF
Nonstop1h 35m
American Airlines
Deal found 5/17![American Airlines logo]()
$275
This Southwest deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/298:10 pm
SDF
- MDW
Nonstop1h 15m
Southwest
Wed 7/17:45 am
MDW
- SDF
Nonstop1h 20m
Southwest
Deal found 5/13![Southwest logo]()
$275
This United Airlines deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” 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 6/99:00 am
SDF
- ORD
Nonstop1h 38m
United Airlines
Wed 6/175:50 pm
ORD
- SDF
Nonstop1h 33m
United Airlines
Deal found 5/13![United Airlines logo]()
$276
This Southwest deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/94:15 pm
SDF
- MDW
Nonstop1h 15m
Southwest
Wed 6/171:25 pm
MDW
- SDF
Nonstop1h 10m
Southwest
Deal found 5/13![Southwest logo]()
$276
This American Airlines deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/36:56 pm
SDF
- ORD
Nonstop2h 04m
American Airlines
Wed 6/108:00 am
ORD
- SDF
Nonstop1h 35m
American Airlines
Deal found 5/13![American Airlines logo]()
$277
This American Airlines deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/96:25 pm
SDF
- ORD
1 stop7h 09m
American Airlines
Wed 6/177:44 pm
ORD
- SDF
Nonstop1h 35m
American Airlines
Deal found 5/13![American Airlines logo]()
$286
This Southwest deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/37:15 pm
SDF
- MDW
Nonstop1h 15m
Southwest
Mon 6/812:45 pm
MDW
- SDF
Nonstop1h 10m
Southwest
Deal found 5/13![Southwest logo]()
$287
This Delta deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” 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 6/176:00 am
SDF
- MLI
1 stop5h 16m
Delta
Sun 6/215:56 am
MLI
- SDF
1 stop4h 57m
Delta
Deal found 5/16![Delta logo]()
$289
This American Airlines deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” 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 7/36:57 pm
SDF
- ORD
Nonstop2h 02m
American Airlines
Sun 7/57:29 pm
ORD
- SDF
Nonstop1h 35m
American Airlines
Deal found 5/17![American Airlines logo]()
$294
This Delta deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/37:49 am
SDF
- ORD
1 stop4h 01m
Delta
Tue 7/77:05 am
ORD
- SDF
1 stop5h 37m
Delta
Deal found 5/14![Delta logo]()
$295
This Delta deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/307:49 am
SDF
- MDW
1 stop5h 57m
Delta
Wed 7/19:17 am
MDW
- SDF
1 stop6h 29m
Delta
Deal found 5/13![Delta logo]()
$295
This American Airlines deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/97:43 am
SDF
- ORD
1 stop7h 34m
American Airlines
Tue 6/164:49 pm
ORD
- SDF
1 stop6h 39m
American Airlines
Deal found 5/13![American Airlines logo]()
$296
Best flights from Louisville to IllinoisDiscover carefully curated flight deals from Louisville to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 18, 2026.
Discover carefully curated flight deals from Louisville to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 18, 2026.
This United Airlines deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/1710:02 am
SDF
- ORD
Nonstop1h 36m
United Airlines
Wed 6/175:50 pm
ORD
- SDF
Nonstop1h 33m
United Airlines
Deal found 5/14![United Airlines logo]()
$275
This Delta deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” 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 6/176:00 am
SDF
- MLI
1 stop5h 16m
Delta
Sun 6/215:56 am
MLI
- SDF
1 stop4h 57m
Delta
Deal found 5/16![Delta logo]()
$289
This Southwest deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/228:05 pm
SDF
- MDW
Nonstop1h 15m
Southwest
Wed 6/246:15 pm
MDW
- SDF
Nonstop1h 10m
Southwest
Deal found 5/13![Southwest logo]()
$295
This American Airlines deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” 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 5/285:43 pm
SDF
- MLI
2 stops7h 12m
American Airlines
Mon 6/14:24 pm
MLI
- SDF
1 stop7h 04m
American Airlines
Deal found 5/13![American Airlines logo]()
$324
This Delta deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” 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 7/17:49 am
SDF
- MDW
1 stop5h 57m
Delta
Tue 7/79:19 am
MDW
- SDF
1 stop3h 23m
Delta
Deal found 5/14![Delta logo]()
$295
This Southwest deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/164:15 pm
SDF
- MDW
Nonstop1h 15m
Southwest
Fri 6/197:45 pm
MDW
- SDF
Nonstop1h 10m
Southwest
Deal found 5/16![Southwest logo]()
$295
This Delta deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/307:49 am
SDF
- MDW
1 stop5h 57m
Delta
Wed 7/89:19 am
MDW
- SDF
1 stop3h 23m
Delta
Deal found 5/14![Delta logo]()
$295
This Southwest deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” 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 7/298:45 am
SDF
- MDW
Nonstop1h 15m
Southwest
Sat 8/17:40 am
MDW
- SDF
Nonstop1h 20m
Southwest
Deal found 5/16![Southwest logo]()
$295
This Delta deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/307:49 am
SDF
- MDW
1 stop5h 57m
Delta
Wed 7/19:17 am
MDW
- SDF
1 stop6h 29m
Delta
Deal found 5/13![Delta logo]()
$295
This United Airlines deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” 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 7/15:50 pm
SDF
- ORD
Nonstop1h 50m
United Airlines
Sun 7/52:29 pm
ORD
- SDF
Nonstop1h 34m
United Airlines
Deal found 5/14![United Airlines logo]()
$365
This Southwest deal was found by Cheapflights users on 5/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/310:45 am
SDF
- MDW
1 stop7h 25m
Southwest
Sun 7/58:00 am
MDW
- SDF
Nonstop1h 15m
Southwest
Deal found 5/15![Southwest logo]()
$305
This United Airlines deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/189:00 am
SDF
- STL
1 stop4h 02m
United Airlines
Wed 8/195:30 pm
STL
- SDF
1 stop3h 58m
United Airlines
Deal found 5/16![United Airlines logo]()
$365
This Delta deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” 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 8/127:55 am
SDF
- STL
1 stop6h 19m
Delta
Sat 8/1510:33 am
STL
- SDF
1 stop5h 09m
Delta
Deal found 5/12![Delta logo]()
$303
This Southwest deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” 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 7/14:15 pm
SDF
- MDW
Nonstop1h 15m
Southwest
Sun 7/57:55 am
MDW
- SDF
1 stop4h 10m
Southwest
Deal found 5/16![Southwest logo]()
$305
This American Airlines deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/1712:00 pm
SDF
- MLI
2 stops7h 22m
American Airlines
Sun 6/216:00 am
MLI
- SDF
1 stop3h 35m
American Airlines
Deal found 5/16![American Airlines logo]()
$412
This United Airlines deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” 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 6/26:00 pm
SDF
- STL
1 stop4h 30m
United Airlines
Wed 6/36:00 am
STL
- SDF
1 stop6h 35m
United Airlines
Deal found 5/12![United Airlines logo]()
$365
This Southwest deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/207:15 pm
SDF
- MDW
Nonstop1h 15m
Southwest
Tue 6/235:20 pm
MDW
- SDF
1 stop3h 20m
Southwest
Deal found 5/14![Southwest logo]()
$305
This Delta deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” 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 7/110:35 am
SDF
- ORD
1 stop6h 55m
Delta
Mon 7/67:01 am
ORD
- SDF
1 stop5h 38m
Delta
Deal found 5/14![Delta logo]()
$315
This Southwest deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” 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 7/17:25 am
SDF
- MDW
2 stops8h 45m
Southwest
Wed 7/811:25 am
MDW
- SDF
2 stops9h 15m
Southwest
Deal found 5/14![Southwest logo]()
$305
This Delta deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/305:26 pm
SDF
- ORD
1 stop4h 05m
Delta
Sun 7/511:30 am
ORD
- SDF
1 stop4h 16m
Delta
Deal found 5/14![Delta logo]()
$315
This United Airlines deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/127:55 pm
SDF
- ORD
Nonstop1h 45m
United Airlines
Thu 7/164:30 pm
ORD
- SDF
Nonstop1h 31m
United Airlines
Deal found 5/16![United Airlines logo]()
$385
This Delta deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” 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 5/281:05 pm
SDF
- MLI
1 stop4h 32m
Delta
Mon 6/15:17 pm
MLI
- SDF
1 stop6h 08m
Delta
Deal found 5/13![Delta logo]()
$319
This Southwest deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” 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 9/156:45 pm
SDF
- STL
1 stop3h 55m
Southwest
Fri 9/1812:15 pm
STL
- SDF
2 stops7h 15m
Southwest
Deal found 5/13![Southwest logo]()
$350
This United Airlines deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” 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 6/306:00 am
SDF
- ORD
1 stop4h 36m
United Airlines
Thu 7/99:25 pm
ORD
- SDF
Nonstop1h 34m
United Airlines
Deal found 5/14![United Airlines logo]()
$424
This Southwest deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” 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 7/233:00 pm
SDF
- STL
2 stops7h 55m
Southwest
Tue 7/285:40 am
STL
- SDF
1 stop3h 25m
Southwest
Deal found 5/16![Southwest logo]()
$350
This United Airlines deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/86:00 am
SDF
- ORD
1 stop4h 36m
United Airlines
Sun 6/144:29 pm
ORD
- SDF
Nonstop1h 31m
United Airlines
Deal found 5/17![United Airlines logo]()
$446
This Delta deal was found by Cheapflights users on 5/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/37:49 am
SDF
- ORD
1 stop6h 11m
Delta
Sun 7/56:35 am
ORD
- SDF
1 stop4h 18m
Delta
Deal found 5/15![Delta logo]()
$417
This Southwest deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” 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 7/23:00 pm
SDF
- STL
1 stop5h 10m
Southwest
Sun 7/56:45 pm
STL
- SDF
1 stop4h 25m
Southwest
Deal found 5/17![Southwest logo]()
$395
This Delta deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/121:02 pm
SDF
- ORD
2 stops8h 29m
Delta
Tue 6/162:07 pm
ORD
- SDF
1 stop6h 08m
Delta
Deal found 5/13![Delta logo]()
$422
This Southwest deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” 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 8/213:20 pm
SDF
- STL
2 stops7h 45m
Southwest
Mon 8/245:45 am
STL
- SDF
2 stops6h 20m
Southwest
Deal found 5/13![Southwest logo]()
$397
Last-minute flights from Louisville to IllinoisDiscover last-minute flight deals from Louisville to Illinois. Data last updated May 18, 2026 and is based on user searches.
Discover last-minute flight deals from Louisville to Illinois. Data last updated May 18, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/298:10 pm
SDF
- MDW
Nonstop1h 15m
Southwest
Wed 7/17:45 am
MDW
- SDF
Nonstop1h 20m
Southwest
Deal found 5/13![Southwest logo]()
$275
This American Airlines deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/36:56 pm
SDF
- ORD
Nonstop2h 04m
American Airlines
Wed 6/108:00 am
ORD
- SDF
Nonstop1h 35m
American Airlines
Deal found 5/13![American Airlines logo]()
$277
This Southwest deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/37:15 pm
SDF
- MDW
Nonstop1h 15m
Southwest
Mon 6/812:45 pm
MDW
- SDF
Nonstop1h 10m
Southwest
Deal found 5/13![Southwest logo]()
$287
This United Airlines deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” 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 6/99:00 am
SDF
- ORD
Nonstop1h 38m
United Airlines
Wed 6/175:50 pm
ORD
- SDF
Nonstop1h 33m
United Airlines
Deal found 5/13![United Airlines logo]()
$276
This Southwest deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/94:15 pm
SDF
- MDW
Nonstop1h 15m
Southwest
Wed 6/171:25 pm
MDW
- SDF
Nonstop1h 10m
Southwest
Deal found 5/13![Southwest logo]()
$276
This American Airlines deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/96:25 pm
SDF
- ORD
1 stop7h 09m
American Airlines
Wed 6/177:44 pm
ORD
- SDF
Nonstop1h 35m
American Airlines
Deal found 5/13![American Airlines logo]()
$286
This American Airlines deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/97:43 am
SDF
- ORD
1 stop7h 34m
American Airlines
Tue 6/164:49 pm
ORD
- SDF
1 stop6h 39m
American Airlines
Deal found 5/13![American Airlines logo]()
$296
This Delta deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/92:19 pm
SDF
- MDW
1 stop5h 12m
Delta
Tue 6/169:17 am
MDW
- SDF
1 stop6h 29m
Delta
Deal found 5/13![Delta logo]()
$296
This Delta deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” 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 6/176:00 am
SDF
- MLI
1 stop5h 16m
Delta
Sun 6/215:56 am
MLI
- SDF
1 stop4h 57m
Delta
Deal found 5/16![Delta logo]()
$289
This American Airlines deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/306:51 am
SDF
- ORD
Nonstop1h 47m
American Airlines
Wed 7/18:00 am
ORD
- SDF
Nonstop1h 35m
American Airlines
Deal found 5/17![American Airlines logo]()
$275
This Delta deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/305:26 pm
SDF
- ORD
1 stop4h 05m
Delta
Wed 7/88:52 am
ORD
- SDF
1 stop3h 50m
Delta
Deal found 5/14![Delta logo]()
$295
This Delta deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/307:49 am
SDF
- MDW
1 stop5h 57m
Delta
Wed 7/89:19 am
MDW
- SDF
1 stop3h 23m
Delta
Deal found 5/14![Delta logo]()
$295
One-way flights from Louisville to IllinoisSearch for one-way flight options from Louisville to Illinois. Find affordable one-way fares based on user searches. Data last updated May 18, 2026.
Search for one-way flight options from Louisville to Illinois. Find affordable one-way fares based on user searches. Data last updated May 18, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/266:52 pm
SDF
- MDW
1 stop26h 38m
Allegiant Air
Deal found 5/13![Allegiant Air logo]()
$101
This Kiwi.com deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/109:10 pm
SDF
- ORD
2 stops35h 43m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$113
This Kiwi.com deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/109:10 pm
SDF
- MDW
2 stops38h 57m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$125
This Kiwi.com deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” 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.
Thu 8/67:34 pm
SDF
- MDW
1 stop26h 01m
Allegiant Air
Deal found 5/14![Allegiant Air logo]()
$129
This Kiwi.com deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/159:05 pm
SDF
- ORD
2 stops35h 58m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$130
This Kiwi.com deal was found by Cheapflights users on 5/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/126:52 pm
SDF
- MDW
1 stop26h 38m
Allegiant Air
Deal found 5/15![Allegiant Air logo]()
$130
This United Airlines deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/242:10 pm
SDF
- ORD
Nonstop1h 40m
United Airlines
Deal found 5/14![United Airlines logo]()
$138
This Southwest deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” 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 5/249:30 am
SDF
- MDW
Nonstop1h 15m
Southwest
Deal found 5/14![Southwest logo]()
$138
This American Airlines deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/97:18 pm
SDF
- ORD
Nonstop1h 56m
American Airlines
Deal found 5/17![American Airlines logo]()
$139
This Southwest deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/98:45 am
SDF
- MDW
Nonstop1h 15m
Southwest
Deal found 5/13![Southwest logo]()
$139
This Kiwi.com deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/166:57 pm
SDF
- MDW
1 stop26h 38m
Allegiant Air
Deal found 5/18![Allegiant Air logo]()
$140
This Kiwi.com deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” 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.
Sat 6/68:06 pm
SDF
- ORD
2 stops36h 49m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$146
Find flight deals from Louisville to Illinois
Keep the following information in mind while searching for Louisville to Illinois flight deals. Data was last updated May 18, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $275 (American Airlines) |
One-way from | $101 (Kiwi.com) |
Popular in | January |
Cheapest in | November |
Average price | $373 |
Good round-trip deal | $358 or less |
Good one-way deal | $203 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Louisville to Illinois that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 18, 2026.
Use the filters below to find and compare flights from Louisville to Illinois that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
LouisvilleChicago
SDF - ORD
SDFORD
Louisville Intl
Wed 6/17
10:02 am-10:38 am
Nonstop1h 36m
Chicago O'Hare Intl
Wed 6/17
5:50 pm-8:23 pm
Nonstop1h 33m
$275
LouisvilleMoline
SDF - MLI
SDFMLI
Louisville Intl
Wed 6/17
6:00 am-10:16 am
1 stop5h 16m
Moline Quad-City
Sun 6/21
5:56 am-11:53 am
1 stop4h 57m
$289
Quickest round-trip
LouisvilleChicago
SDF - MDW
SDFMDW
Louisville Intl
Mon 6/22
8:05 pm-8:20 pm
Nonstop1h 15m
Chicago Midway
Wed 6/24
6:15 pm-8:25 pm
Nonstop1h 10m
$295
LouisvilleChicago
SDF - MDW
SDFMDW
Louisville Intl
Wed 7/1
7:49 am-12:46 pm
1 stop5h 57m
Chicago Midway
Tue 7/7
9:19 am-1:42 pm
1 stop3h 23m
$295
LouisvilleChicago
SDF - MDW
SDFMDW
Louisville Intl
Tue 6/16
4:15 pm-4:30 pm
Nonstop1h 15m
Chicago Midway
Fri 6/19
7:45 pm-9:55 pm
Nonstop1h 10m
$295
LouisvilleChicago
SDF - MDW
SDFMDW
Louisville Intl
Tue 6/30
7:49 am-12:46 pm
1 stop5h 57m
Chicago Midway
Wed 7/8
9:19 am-1:42 pm
1 stop3h 23m
$295
LouisvilleChicago
SDF - MDW
SDFMDW
Louisville Intl
Wed 7/29
8:45 am-9:00 am
Nonstop1h 15m
Chicago Midway
Sat 8/1
7:40 am-10:00 am
Nonstop1h 20m
$295
LouisvilleChicago
SDF - MDW
SDFMDW
Louisville Intl
Tue 6/30
7:49 am-12:46 pm
1 stop5h 57m
Chicago Midway
Wed 7/1
9:17 am-4:46 pm
1 stop6h 29m
$295
LouisvilleSt. Louis
SDF - STL
SDFSTL
Louisville Intl
Wed 8/12
7:55 am-1:14 pm
1 stop6h 19m
Lambert-St Louis
Sat 8/15
10:33 am-4:42 pm
1 stop5h 09m
$303
LouisvilleChicago
SDF - MDW
SDFMDW
Louisville Intl
Fri 7/3
10:45 am-5:10 pm
1 stop7h 25m
Chicago Midway
Sun 7/5
8:00 am-10:15 am
Nonstop1h 15m
$305
Showing 1-10 of 58 resultsSorted by cheapest first
Best time to book a flight from Louisville to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from Louisville with our price prediction graph.
SDF-ORD
SDF-MDW
SDF-MLI
SDF-STL
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-MLI
SDF-STL
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 month to book a flight from Louisville to Illinois?
Currently, January is the cheapest month in which you can book a flight from Louisville to Illinois (average of $67). Flying from Louisville to Illinois in May is currently the most expensive (average of $179). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from SDF to IL?
Find hourly flight availability from Louisville to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 18, 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.
What is the cheapest day to fly from Louisville to Illinois?
Use this chart to determine the cheapest time to fly round-trip from Louisville to Illinois. Price data was last updated on May 9, 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.
How much does it cost to fly round-trip from Louisville to Illinois?
Reviews of airlines servicing Illinois
Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated May 18, 2026.
See what other customers who have flown with Southwest,United Airlines, andAmerican Airlines from Louisville to Illinois have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Entertainment
7.5
Overall
7.9
Food
7.0
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Entertainment
7.5
Overall
7.9
Food
7.0
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Entertainment
7.5
Overall
7.9
Food
7.0
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Entertainment
7.5
Overall
7.9
Food
7.0
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Related info for your journey
Find useful and relevant information for your journey from Louisville to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Louisville to Illinois
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Complete your trip
Complete your trip to Illinois by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Louisville to Illinois by cabin class
Find flights from Louisville to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Louisville and Illinois flights
Browse other Louisville and Illinois flight options. Last updated on May 18, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Louisville to Illinois flights
Consider these flights traveling from Louisville to Illinois.
Top 3 airlines flying from Louisville to Illinois
Discover the top 3 airlines that operate flights from Louisville to Illinois. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 18, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$77 | Average$215 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$97 | Average$271 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$122 | Average$307 | FlexibilityNo cancel fee | On-time69% |