$99+ Cheap flights from Louisville (SDF) to Chicago (CHI)
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 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — CHI
Oct 13 — Oct 201
Round-trip
1 adult, Economy
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Find cheap flights from Louisville to Chicago 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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Louisville Intl to Chicago are usually found in December or November, booked 42 days in advance, depart on a Friday or Thursday and return on a Thursday
Cheap flight deals from Louisville to Chicago
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Cheapest flights from Louisville to ChicagoExplore the most affordable flight options available from Louisville to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 13, 2026.
Explore the most affordable flight options available from Louisville to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 13, 2026.
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” 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 10/17:00 am -
Nonstop1h 40m
Mon 10/59:25 pm -
Nonstop1h 34m
Deal found 9/10![United Airlines logo]()
$197
This Southwest deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” 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 10/57:50 pm -
Nonstop1h 15m
Wed 10/77:50 am -
Nonstop1h 15m
Deal found 9/10![Southwest logo]()
$197
This American Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 10/75:19 pm -
Nonstop1h 55m
Wed 10/149:39 am -
Nonstop1h 31m
Deal found 9/9![American Airlines logo]()
$198
This Southwest deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 10/68:35 am -
Nonstop1h 15m
Tue 10/139:40 am -
2 stops9h 55m
Deal found 9/8![Southwest logo]()
$212
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” 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 10/29:04 am -
Nonstop1h 41m
Tue 10/65:50 pm -
Nonstop1h 41m
Deal found 9/10![United Airlines logo]()
$215
This Southwest deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” 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 10/17:50 pm -
Nonstop1h 15m
Sat 10/38:05 am -
Nonstop1h 15m
Deal found 9/10![Southwest logo]()
$215
This Delta deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” 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 10/241:59 pm -
1 stop7h 39m
Mon 10/265:27 am -
1 stop6h 27m
Deal found 9/10![Delta logo]()
$217
This Delta deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” 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 10/245:59 pm -
1 stop5h 34m
Mon 10/266:04 am -
1 stop5h 50m
Deal found 9/10![Delta logo]()
$217
This Southwest deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 11/98:45 am -
Nonstop1h 15m
Thu 11/1211:10 am -
2 stops10h 00m
Deal found 9/9![Southwest logo]()
$218
This Southwest deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 10/67:10 am -
2 stops8h 15m
Tue 10/64:45 pm -
1 stop5h 20m
Deal found 9/8![Southwest logo]()
$222
This Southwest deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” 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 10/305:10 pm -
1 stop5h 50m
Mon 11/27:45 am -
Nonstop1h 20m
Deal found 9/10![Southwest logo]()
$225
This American Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” 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 10/166:29 am -
Nonstop1h 42m
Fri 10/236:59 am -
Nonstop1h 33m
Deal found 9/10![American Airlines logo]()
$233
Best flights from Louisville to ChicagoDiscover carefully curated flight deals from Louisville to Chicago that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 13, 2026.
Discover carefully curated flight deals from Louisville to Chicago that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 13, 2026.
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” 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 10/15:15 am -
Nonstop1h 41m
Sat 10/36:50 am -
Nonstop1h 39m
Deal found 9/10![United Airlines logo]()
$197
This Southwest deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” 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 10/212:05 pm -
Nonstop1h 15m
Thu 10/227:55 am -
Nonstop1h 15m
Deal found 9/10![Southwest logo]()
$197
This Delta deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 10/132:36 pm -
1 stop6h 54m
Wed 10/1411:19 am -
1 stop4h 59m
Deal found 9/8![Delta logo]()
$217
This Southwest deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” 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
Tue 10/271:05 pm -
Nonstop1h 15m
Deal found 9/10![Southwest logo]()
$212
This United Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 1/62:08 pm -
Nonstop1h 46m
Sat 1/95:55 pm -
Nonstop1h 37m
Deal found 9/8![United Airlines logo]()
$267
This Southwest deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/305:00 pm -
1 stop4h 50m
Fri 10/211:05 am -
2 stops10h 25m
Deal found 9/8![Southwest logo]()
$246
This Delta deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 11/245:40 pm -
1 stop3h 37m
Thu 1/75:30 am -
1 stop5h 06m
Deal found 9/8![Delta logo]()
$271
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 10/810:25 am -
Nonstop1h 40m
Sun 10/114:30 pm -
Nonstop1h 41m
Deal found 9/9![United Airlines logo]()
$271
This Southwest deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 12/302:10 pm -
Nonstop1h 20m
Fri 1/11:20 pm -
Nonstop1h 15m
Deal found 9/8![Southwest logo]()
$269
This Southwest deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/175:05 pm -
Nonstop1h 20m
Sun 10/187:00 pm -
Nonstop1h 15m
Deal found 9/8![Southwest logo]()
$271
This Delta deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” 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 pm -
1 stop5h 02m
Mon 10/268:05 am -
1 stop5h 36m
Deal found 9/11![Delta logo]()
$329
This United Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 10/139:04 am -
Nonstop1h 41m
Wed 10/1412:55 pm -
1 stop5h 29m
Deal found 9/8![United Airlines logo]()
$313
This Southwest deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/245:05 pm -
Nonstop1h 20m
Sun 10/255:25 pm -
1 stop5h 50m
Deal found 9/8![Southwest logo]()
$281
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/237:00 am -
Nonstop1h 49m
Wed 1/68:40 am -
1 stop5h 07m
Deal found 9/9![United Airlines logo]()
$320
This Delta deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” 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.
Sun 11/17:55 am -
1 stop6h 04m
Mon 11/23:40 pm -
1 stop7h 19m
Deal found 9/11![Delta logo]()
$357
This Southwest deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/105:05 pm -
Nonstop1h 20m
Sun 10/185:25 pm -
1 stop5h 50m
Deal found 9/9![Southwest logo]()
$281
This United Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 10/16:00 am -
1 stop4h 38m
Mon 10/59:25 pm -
Nonstop1h 34m
Deal found 9/8![United Airlines logo]()
$331
This Southwest deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 10/98:20 am -
Nonstop1h 15m
Sun 10/118:20 am -
Nonstop1h 15m
Deal found 9/9![Southwest logo]()
$289
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 10/25:15 am -
Nonstop1h 41m
Sun 10/48:50 am -
1 stop4h 49m
Deal found 9/9![United Airlines logo]()
$345
This Southwest deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 12/238:25 am -
Nonstop1h 15m
Wed 1/66:25 am -
1 stop5h 30m
Deal found 9/9![Southwest logo]()
$291
This United Airlines deal was found by Cheapflights users on 9/12. 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.
Sat 11/215:10 am -
Nonstop1h 45m
Mon 11/236:59 am -
Nonstop1h 39m
Deal found 9/12![United Airlines logo]()
$365
This Southwest deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” 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 10/268:30 am -
2 stops7h 30m
Deal found 9/11![Southwest logo]()
$304
Last-minute flights from Louisville to ChicagoDiscover last-minute flight deals from Louisville to Chicago. Data last updated September 13, 2026 and is based on user searches.
Discover last-minute flight deals from Louisville to Chicago. Data last updated September 13, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” 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 10/15:15 am -
Nonstop1h 41m
Sat 10/36:50 am -
Nonstop1h 39m
Deal found 9/10![United Airlines logo]()
$197
This Southwest deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” 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 10/17:50 pm -
Nonstop1h 15m
Sat 10/38:05 am -
Nonstop1h 15m
Deal found 9/10![Southwest logo]()
$215
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” 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 10/29:04 am -
Nonstop1h 41m
Tue 10/65:50 pm -
Nonstop1h 41m
Deal found 9/10![United Airlines logo]()
$215
This Southwest deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” 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 10/57:50 pm -
Nonstop1h 15m
Wed 10/77:50 am -
Nonstop1h 15m
Deal found 9/10![Southwest logo]()
$197
This Southwest deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 10/68:35 am -
Nonstop1h 15m
Tue 10/139:40 am -
2 stops9h 55m
Deal found 9/8![Southwest logo]()
$212
This Southwest deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 10/67:10 am -
2 stops8h 15m
Tue 10/64:45 pm -
1 stop5h 20m
Deal found 9/8![Southwest logo]()
$222
This American Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 10/75:19 pm -
Nonstop1h 55m
Wed 10/149:39 am -
Nonstop1h 31m
Deal found 9/9![American Airlines logo]()
$198
This American Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” 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 10/166:29 am -
Nonstop1h 42m
Fri 10/236:59 am -
Nonstop1h 33m
Deal found 9/10![American Airlines logo]()
$233
This Southwest deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” 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 10/163:35 pm -
Nonstop1h 15m
Fri 10/236:55 pm -
Nonstop1h 15m
Deal found 9/10![Southwest logo]()
$233
This Delta deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” 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 10/241:59 pm -
1 stop7h 39m
Mon 10/265:27 am -
1 stop6h 27m
Deal found 9/10![Delta logo]()
$217
This Delta deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” 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 10/245:59 pm -
1 stop5h 34m
Mon 10/266:04 am -
1 stop5h 50m
Deal found 9/10![Delta logo]()
$217
This Southwest deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” 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 10/305:10 pm -
1 stop5h 50m
Mon 11/27:45 am -
Nonstop1h 20m
Deal found 9/10![Southwest logo]()
$225
One-way flights from Louisville to ChicagoSearch for one-way flight options from Louisville to Chicago. Find affordable one-way fares based on user searches. Data last updated September 13, 2026.
Search for one-way flight options from Louisville to Chicago. Find affordable one-way fares based on user searches. Data last updated September 13, 2026.
This American Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” 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 10/32:47 pm -
Nonstop1h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![American Airlines logo]()
$99
This Southwest deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 10/72:05 pm -
Nonstop1h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Southwest logo]()
$99
This Delta deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” 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 10/35:30 pm -
1 stop4h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Delta logo]()
$109
This Delta deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” 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 12/75:59 pm -
1 stop5h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Delta logo]()
$109
This Southwest deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 10/277:10 am -
2 stops8h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Southwest logo]()
$114
This United Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 10/25:15 am -
Nonstop1h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![United Airlines logo]()
$117
This Southwest deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” 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 10/17:50 pm -
Nonstop1h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Southwest logo]()
$117
This Southwest deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/247:05 am -
2 stops8h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Southwest logo]()
$120
This Delta deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” 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
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Delta logo]()
$127
This Delta deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” 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 12/1110:13 am -
1 stop7h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Delta logo]()
$127
This United Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” 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 10/610:25 am -
Nonstop1h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![United Airlines logo]()
$134
This Southwest deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” 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 12/97:20 am -
2 stops9h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Southwest logo]()
$138
Find flight deals from Louisville to Chicago
Discover tips and strategies to find the most affordable flight options for your journey from Louisville (SDF) to Chicago (CHI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 13, 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 | $403 |
Good round-trip deal | $354 or less |
Good one-way deal | $181 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Louisville to Chicago 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 September 13, 2026.
Use the filters below to find and compare flights from Louisville to Chicago 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 10/12
7:00 am-7:40 am
Nonstop1h 40m
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
Tue 10/27
2:05 pm-2:20 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
Wed 12/9
7:00 am-7:45 am
Nonstop1h 45m
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
Mon 10/12
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 10/1
5:15 am-5:56 am
Nonstop1h 41m
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
Mon 12/7
3:18 pm-6:26 pm
1 stop4h 08m
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
Tue 10/27
6:00 am-11:54 am
1 stop6h 54m
Chicago Midway
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$109
LouisvilleChicago
SDF Louisville Intl - ORD Chicago O'Hare Intl
SDFORD
Louisville Intl
Fri 10/2
5:15 am-5:56 am
Nonstop1h 41m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$117
LouisvilleChicago
SDF Louisville Intl - MDW Chicago Midway
SDFMDW
Louisville Intl
Fri 12/11
10:13 am-4:17 pm
1 stop7h 04m
Chicago Midway
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$127
LouisvilleChicago
SDF Louisville Intl - ORD Chicago O'Hare Intl
SDFORD
Louisville Intl
Sat 10/10
6:16 pm-7:05 pm
Nonstop1h 49m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$134
Showing 1-10 of 44 resultsSorted by cheapest first
Compare providers for flights from Louisville to Chicago
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Louisville to Chicago in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Louisville-Chicago flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Louisville-Chicago flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Louisville-Chicago flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Louisville-Chicago flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Louisville-Chicago flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Louisville to Chicago
Have a flexible travel schedule? Discover the best time to fly to Chicago from Louisville with our price prediction graph.
SDF-CHI
SDF-ORD
SDF-MDW
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 Chicago
SDF-CHI
SDF-ORD
SDF-MDW
What is the cheapest month to book a flight from Louisville to Chicago?
Currently, November is the cheapest month in which you can book a flight from Louisville to Chicago (average of $236). Flying from Louisville to Chicago in August is currently the most expensive (average of $391). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from SDF to CHI?
Find hourly flight availability from Louisville to Chicago. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 13, 2026.
One of the essential ways to save on airfare from Louisville to Chicago is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 32% on airfare.
Weekly flight availability from Louisville to Chicago
Explore weekly flight availability from Louisville to Chicago. 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 September 13, 2026.
The most flights from SDF to CHI are scheduled on a Friday (48 on average). You will have fewer flight options on Saturday, 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 Chicago?
Airfare is below average for this route at the moment.
Louisville to Chicago flights typically cost between $269 and $579 in October.The cheapest round-trip price found within the last 5 days was $197 on United Airlines (Oct 1-Oct 3).
How far ahead should I book a flight from Louisville to Chicago?
To ensure you get the cheapest price possible for a flight from Louisville to Chicago, you should look to book at least 52 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest day to fly from Louisville to Chicago?
Use this chart to determine the cheapest time to fly round-trip from Louisville to Chicago. Price data was last updated on September 12, 2026.
Travelers seeking maximum savings on their Louisville to Chicago flight should consider departing on Saturday afternoons when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing Chicago
Get insights into the airlines that provide service to Chicago. 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 Chicago. Reviews last updated September 13, 2026.
Peruse reviews from past customers who have flown with Southwest,United Airlines, andAmerican Airlines from Louisville to Chicago to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Food
7.0
Crew
8.6
Overall
8.0
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Boarding
8.1
Food
7.0
Crew
8.6
Overall
8.0
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Boarding
8.1
Food
7.0
Crew
8.6
Overall
8.0
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Boarding
8.1
Food
7.0
Crew
8.6
Overall
8.0
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Related info for your journey
Find useful and relevant information for your journey from Louisville to Chicago. 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 Chicago?
Book flights to Chicago if you plan to visit one of these locationsBenton Harbor
Merrillville
Lansing
Valparaiso
Hammond
Saint Joseph
Porter
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Other flights to Chicago
Explore flights to Chicago departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 13, 2026.
Complete your trip
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Search flights from Louisville to Chicago by cabin class
Find flights from Louisville to Chicago, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Louisville and Chicago flights
Browse other Louisville and Chicago flight options. Last updated on September 13, 2026.
Other flights from Louisville
Browse through other flights departing from Louisville. Flights are based on user searches made on Cheapflights and were last updated on September 13, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 3 airlines flying from Louisville to Chicago
Discover the top 3 airlines that operate flights from Louisville to Chicago. 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 September 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$157 | Average$382 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$171 | Average$296 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$184 | Average$315 | FlexibilityNo cancel fee | On-time63% |