Flights from Chicago to Louisville

Our cheapest offers for flights from Chicago to Louisville

Here you can compare cheap flights from Chicago (CHI) to Louisville (SDF) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to Louisville. Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
Best option
Chicago
Louisville
Outbound
09/23/25
direct
UA3551
01h 40min
Return
09/30/25
direct
UA5644
01h 42min
United Airlines ?
$128
Chicago
Louisville
Pay attention to transfer at connecting flight
Outbound
11/03/25
1 Stopover (LAX)
NK3016, NK0468
32h 14min
Return
11/12/25
1 Stopover (MCO)
NK0143, NK1109
11h 52min
Spirit Airlines
$213
Chicago
Louisville
Outbound
09/23/25
direct
UA3598
01h 33min
Return
09/30/25
direct
UA3422
01h 38min
United Airlines ?
$132
Chicago
Louisville
Outbound
09/23/25
direct
AA4005
01h 23min
Return
09/30/25
direct
AA3736
01h 38min
American Airlines ?
$161
Chicago
Louisville
Outbound
10/09/25
direct
UA3551
01h 40min
Return
11/01/25
direct
UA4188
01h 40min
United Airlines ?
$196
Chicago
Louisville
Outbound
10/18/25
direct
AA4036
01h 24min
Return
11/17/25
1 Stopover (CLT)
AA2854, AA1039
04h 50min
American Airlines ?
$207
Chicago
Louisville
Outbound
06/07/25
1 Stopover (TPA)
NK2157, NK2158
05h 42min
Return
06/23/25
1 Stopover (TPA)
NK2159, NK2162
07h 14min
Spirit Airlines
$226
Chicago
Louisville
Outbound
10/18/25
direct
AA4036
01h 24min
Return
11/17/25
direct
AA4476
01h 39min
American Airlines ?
$229
Chicago
Louisville
Outbound
09/04/25
direct
UA3551
01h 40min
Return
09/28/25
direct
UA3653
01h 38min
United Airlines
$231
Chicago
Louisville
Outbound
06/07/25
1 Stopover (TPA)
NK2157, NK2158
05h 42min
Return
06/23/25
1 Stopover (TPA)
NK2159, NK2162
07h 14min
Spirit Airlines
$234
Prices based on recent searches, subject to last-minute changes
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Tips and tricks to help you find cheap flights from Chicago to Louisville

Favorite airline: United Airlines
92 % of bookings on this flight route are made with United Airlines, Spirit Airlines and American Airlines.
United Airlines
40 %
Spirit Airlines
36 %
American Airlines
16 %
Cheapest weekday: Wednesday
Flight prices fluctuate throughout the week. Flights are 31 % cheaper on Wednesday.
Direct flights are more expensive
Direct flights on this route are $18.00 more expensive on average than flights with a stopover.
non stop flight
1 stop
2 stops
01h 24min
06h 41min
14h 15min
$148
$130
$284
The favorite connection is non-stop
Non-stop flights are especially popular on this route. 59 % of travelers will book a direct flight.
Route
bookings
Direct flights
01h 24min, from $148
59 %
1 stopover Fort Lauderdale-Hollywood International Airport, FL
12h 08min, from $151
21 %
1 stopover Orlando International Airport, FL
09h 05min, from $213
8 %

Important flight information

Flight information: Chicago - Louisville

Roundtrip from $127.55
Flight duration min. 01:10 / max. 01:31
Return flight duration min. 01:15/ max. 08:40
Distance 443 km
Flights per week 96
Departure airport Airport Chicago-IL all Airports (ORD, MDW, RFD) (CHI)
Arrival airport Airport Louisville International Airport, KY (SDF)
Destination country Flights to United States
Alternative routes to United States
Alternative flights to Louisville
Flight destinations with a similar price
Flight destinations with a similar price