$99 Find Cheap Flights from Chicago to Louisville - Compare and Save

Among airlines operating Chicago to Louisville flights:

• United Airlines: offers extra legroom; offers free seat selection
• American Airlines: offers extra legroom; offers free seat selection
• Southwest: offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

3 airlines operate flights between Chicago and Louisville. The airlines offering nonstop flights on this route include:

• United Airlines
• American Airlines
• Southwest

Flights from Chicago to Louisville may depart from several airports in Chicago area, including Chicago Midway (MDW), Chicago O'Hare Intl (ORD) and Chicago Greater Rockford (RFD). Flights usually arrive at Louisville Intl (SDF).

Here are some options for this route, based on selected ticket types and cabin classes:

• United Airlines: a cabin bag and a checked bag in Economy Class
• American Airlines: a cabin bag and a checked bag in Economy Class
• Southwest: a cabin bag in Economy Class class

Bag allowance can vary by ticket type, cabin class, route and airline, so travelers should check the fare details before booking.

Three cabin classes are available on flights from Chicago to Louisville:

• Economy Class
• Business Class
• First Class

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $331 round-trip via Detroit Metropolitan Wayne County (DTW), compared to $360 for nonstop.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $40–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

One-stop flights from Chicago to Louisville most commonly connect through:

• Atlanta Hartsfield-Jackson (ATL) - 40% of one-stop connections
• Detroit Metropolitan Wayne County (DTW) - 30% of one-stop connections
• Chicago O'Hare Intl (ORD) - 20% of one-stop connections
• Charlotte Douglas (CLT) - 10% of one-stop connections

Atlanta Hartsfield-Jackson (ATL) handles the largest share of one-stop connections on this route.

Yes. Being flexible with your travel dates can save you up to 33% on the Chicago to Louisville route. Thursday is the cheapest departure day at $314 round-trip on average, while Monday is the most expensive at $464, a difference of $150. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

Morning is the busiest departure period on Chicago to Louisville flights, with 39% of flights leaving in that window. Afternoon departures account for 31%, evening flights for 23%, and night flights for 7%.

Some of the most popular sights in Louisville are Louisville Waterfront Park and Masonic Widows and Orphans Home. These are among the most viewed places in Louisville on KAYAK.

These are the earliest and latest flight times available from Chicago to Louisville:

• Earliest: departs at 6:50 am and lands at 8:21 am
• Latest: departs at 9:50 pm and lands at 11:21 pm.

The flight takes about 1h 31m.

Last-minute fares on this route - booked within 2 weeks of departure - run 56% above the route average of $357. Book 17 weeks before departure for the lowest fares.

A nonstop flight from Chicago to Louisville takes 1h 31m, covering 274 miles.

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $197 to $910. That means the highest observed fare was about 5x higher than the lowest one.

One-way fares from Chicago to Louisville are currently lower than usual. Average one-way flight prices are about $101, which is 61% below the typical average for this route.

Based on prices from the last 5 days, flying between Chicago and Louisville is around $197 round-trip, with a flight time of about 1h 15m. Recent bus fares are around $164, with a trip time of about 6h 45m. Compared with flying, recent bus fares are roughly 17% lower. However, taking the bus takes about 5+ hours longer each way.

Flying via Detroit Metropolitan Wayne County (DTW) gives the shortest average 1-stop total travel time at 4h 15m, compared with 4h 54m via Chicago O'Hare Intl (ORD) and 5h 25m via Atlanta Hartsfield-Jackson (ATL).

Louisville is 1 hour ahead of Chicago (Eastern Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

Louisville Intl Airport (SDF) hosts 5 major car rental companies, with daily rates starting from around $32 for economy cars. Top options include:
• Hertz
• Dollar
• Alamo
• Thrifty
• Budget

Round-trip flights from Chicago to Louisville range from $271 to $507, with an average of $357 over the past 12 months. Anything below $271 counts as a good deal.

American Airlines is the only airline on the Chicago to Louisville route offering in-flight Wi-Fi. Pricing depends on fare class.