$99 Find Cheap Flights from Chicago O'Hare Airport to Louisville - Compare and Save

Among airlines operating Chicago O'Hare Intl Airport to Louisville flights:

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

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

2 airlines operate flights between Chicago O'Hare Intl Airport and Louisville. The airlines offering nonstop flights on this route include:

• United Airlines
• American Airlines

Flights from Chicago O'Hare Intl Airport to Louisville usually depart from Chicago O'Hare Intl (ORD) and 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

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 O'Hare Intl Airport to Louisville:

• Economy Class
• Business Class
• First Class

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $196 round-trip via Detroit Metropolitan Wayne County (DTW), compared to $365 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.

The Embraer 175 (Enhanced Winglets) family is used most often on this route, operated mainly by United Airlines. Other aircraft seen on the route include Canadair (Bombardier) Regional Jet CRJ-550 variants.

One-stop flights from Chicago O'Hare Intl Airport to Louisville most commonly connect through:

• Atlanta Hartsfield-Jackson (ATL) - 67% of one-stop connections
• Charlotte Douglas (CLT) - 17% of one-stop connections
• Detroit Metropolitan Wayne County (DTW) - 17% of one-stop connections

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

On the Chicago O'Hare Intl Airport to Louisville route, being flexible with your departure day can save you up to 38%. Saturday is the cheapest day at $295 round-trip on average, while Sunday is the most expensive at $471: a $176 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

Morning is the busiest departure period on Chicago O'Hare Intl Airport to Louisville flights, with 40% of flights leaving in that window. Afternoon departures account for 30%, evening flights for 20%, and night flights for 10%.

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 O'Hare Intl Airport to Louisville:

• Earliest: departs at 6:50 am and lands at 8:25 am
• Latest: departs at 9:25 pm and lands at 11:00 pm.

The flight takes about 1h 35m.

Last-minute fares on this route - booked within 2 weeks of departure - run 54% above the route average of $362. Book 17 weeks before departure for the lowest fares.

A nonstop flight from Chicago O'Hare Intl Airport to Louisville takes 1h 35m, covering 287 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 $932. That means the highest observed fare was about 5x higher than the lowest one.

One-way fares from Chicago O'Hare Intl Airport to Louisville are currently lower than usual. Average one-way flight prices are about $108, which is 58% below the typical average for this route.

Flying via Detroit Metropolitan Wayne County (DTW) gives the shortest average 1-stop total travel time at 3h 24m, compared with 5h 25m via Atlanta Hartsfield-Jackson (ATL) and 5h 39m via Charlotte Douglas (CLT).

Louisville is 1 hour ahead of Chicago O'Hare Intl Airport (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 O'Hare Intl Airport to Louisville range from $277 to $512, with an average of $362 over the past 12 months. Anything below $277 counts as a good deal.

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