SDF - ORD

$82 Find Cheap Flights from Louisville to Chicago O'Hare Airport - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Louisville to O'Hare Intl departing on 8/31. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$217
Typical prices: $221-$352
American Airlines
Thu 9/10Mon 9/14
SDF - ORD • Non-stop
Cheapest non-stop
$217
Typical prices: $227-$349
United Airlines
Wed 8/26Thu 8/27
SDF - ORD • Non-stop
Top airlines
Cheapest • from $217 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with American Airlines and United Airlines. Average duration is 1h 44m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 55% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 26% price drop
Most popular
Good to know
Good to know
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+1
Good to know
Good to know
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We hope you love your trip to O'Hare Intl!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Louisville to O'Hare Intl (SDF-ORD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Louisville to O'Hare Intl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Louisville to O'Hare Intl

Thu, Sep 10 - Mon, Sep 14
American Airlines Logo
7:11 am - 8:00 am
SDF
-
ORD
1h 49mnonstop
American Airlines Logo
7:59 pm - 10:33 pm
ORD
-
SDF
1h 34mnonstop
$217American Airlines
Thu, Sep 10 - Sat, Sep 12
American Airlines Logo
5:59 pm - 6:54 pm
SDF
-
ORD
1h 55mnonstop
American Airlines Logo
11:15 am - 1:43 pm
ORD
-
SDF
1h 28mnonstop
$217American Airlines
Wed, Aug 26 - Thu, Aug 27
United Airlines Logo
10:23 am - 11:03 am
SDF
-
ORD
1h 40mnonstop
United Airlines Logo
6:56 am - 9:38 am
ORD
-
SDF
1h 42mnonstop
$217United Airlines
Sat, Oct 10 - Mon, Oct 12
United Airlines Logo
10:13 am - 10:53 am
SDF
-
ORD
1h 40mnonstop
United Airlines Logo
9:25 pm - 11:59 pm
ORD
-
SDF
1h 34mnonstop
$217United Airlines
Tue, Oct 20 - Wed, Oct 21
United Airlines Logo
6:16 pm - 7:05 pm
SDF
-
ORD
1h 49mnonstop
United Airlines Logo
5:50 pm - 8:31 pm
ORD
-
SDF
1h 41mnonstop
$217United Airlines
Wed, Aug 26 - Wed, Aug 26
American Airlines Logo
6:28 am - 7:15 am
SDF
-
ORD
1h 47mnonstop
American Airlines Logo
3:24 pm - 6:00 pm
ORD
-
SDF
1h 36mnonstop
$217American Airlines
Sat, Sep 5 - Mon, Sep 7
American Airlines Logo
6:28 am - 7:15 am
SDF
-
ORD
1h 47mnonstop
American Airlines Logo
8:05 am - 10:35 am
ORD
-
SDF
1h 30mnonstop
$217American Airlines
Tue, Oct 13 - Thu, Oct 29
Delta Logo
5:38 pm - 8:30 pm
SDF
-
ORD
3h 52m
1 stop
Delta Logo
1:23 pm - 7:10 pm
ORD
-
SDF
4h 47m
1 stop
$237Delta
Sat, Oct 17 - Wed, Oct 28
Delta Logo
5:33 pm - 8:30 pm
SDF
-
ORD
3h 57m
1 stop
Delta Logo
10:44 am - 4:54 pm
ORD
-
SDF
5h 10m
1 stop
$237Delta
Thu, Oct 15 - Mon, Nov 2
Delta Logo
10:37 am - 12:59 pm
SDF
-
ORD
3h 22m
1 stop
Delta Logo
6:14 pm - 11:59 pm
ORD
-
SDF
4h 45m
1 stop
$237Delta
Booking Insights

KAYAK's insights & trends for Louisville to O'Hare Intl flights

Get data-powered insights and trends into flights from Louisville to O'Hare Intl to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Louisville to Chicago O'Hare Intl Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Louisville to Chicago O'Hare Intl Airport departing in September.

Flight prices are below average for this route right now.

Flights to Chicago O'Hare Intl Airport from Louisville usually cost between $227 and $349 in September.
The lowest price found in the past 5 days was $217 on American Airlines (Sep 10-Sep 12).

What’s the cheapest day of the week to fly from Louisville to Chicago O'Hare Airport?

The average price of all round-trip flights from Louisville to Chicago O'Hare Intl Airport clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Chicago O'Hare Airport on a Friday, as we generally find the cheapest rates on that day for this route. On the other hand, Monday is the most expensive day to fly from Louisville to Chicago O'Hare Airport. For your return ticket, we recommend flying on a Saturday and avoiding Mondays for the best deals.

What is the cheapest month to fly from Louisville to Chicago O'Hare Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Louisville to Chicago O'Hare Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Louisville to Chicago O'Hare Intl Airport is November, where tickets cost $238 (return) on average. On the other hand, the most expensive months are July and June, where the average cost of round-trip tickets is $403 and $401 respectively.

How far in advance should I book a flight from Louisville to Chicago O'Hare Intl Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Louisville to Chicago O'Hare Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Louisville to Chicago O'Hare Intl Airport, you should book around 4 weeks before departure, which saves you about 55% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 19 weeks before departure.

Expert advice

Expert advice for your flight from Louisville to O'Hare Intl

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Gabriel Leigh

Gabriel Leigh

Expert on ANA

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Jessica Macdonald

Jessica Macdonald

Expert on Lufthansa

Currently based in Scotland after living in South Africa and the United States, Jessica has been writing travel and aviation content for more than 10 years. She regularly contributes to Travel + Leisure and TripSavvy, and has had work published by Condé Nast Traveller and The Independent. She has traveled to more than 50 countries across six continents.

Duncan Madden

Duncan Madden

Expert on British Airways

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Stefanie Waldek

Stefanie Waldek

Expert on United Airlines

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Harriet Baskas

Harriet Baskas

Expert on American Airlines

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Good to know

Low season

December

Cheapest flight

$82
Best time to beat the crowds with an average 9% drop in price.
Most popular time to fly and prices are also 24% lower on average.
Flight from Louisville to Chicago O'Hare Airport

When to book flights from Louisville to O'Hare Intl

Are your dates flexible? Find out the best times to travel from Louisville to O'Hare Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Louisville to Chicago O'Hare Airport flights

  • What is the cheapest flight from Louisville to Chicago O'Hare Intl Airport?

    In the last 5 days, the lowest price for a flight from Louisville to Chicago O'Hare Intl Airport was $82 for a one-way ticket and $217 for a round-trip.

  • Do I need a passport to fly between Louisville and Chicago O'Hare Airport?

    No

  • Which airlines offer Wi-Fi service onboard planes from Louisville to Chicago O'Hare Airport?

    American Airlines, Delta, JetBlue, and Alaska Airlines offer inflight Wi-Fi service on the Louisville to Chicago O'Hare Airport flight route.

  • Which aircraft models fly most regularly from Louisville to Chicago O'Hare Airport?

    The Embraer 175 is the aircraft model that flies most regularly on the Louisville to Chicago O'Hare Airport flight route.

  • Which airline alliances offer flights from Louisville to Chicago O'Hare Airport?

    oneworld, and Star Alliance are the airline alliances operating flights between Louisville and Chicago O'Hare Airport, with oneworld being the most commonly used for this route.

  • On which days can I fly direct from Louisville to Chicago O'Hare Airport?

    There are nonstop flights from Louisville to Chicago O'Hare Airport on a daily basis.

  • Which is the best airline for flights from Louisville to Chicago, United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from Louisville to Chicago are United Airlines and American Airlines. With an average price for the route of $345 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $295 and an overall rating of 7.1.

  • How does KAYAK find such low prices on flights from Louisville to Chicago O'Hare Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Louisville to Chicago O'Hare Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Louisville to Chicago O'Hare Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chicago O'Hare Airport from Louisville is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Louisville to Chicago O'Hare Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Chicago O'Hare Airport with an airline and back to Louisville with another airline. Booking your flights between Louisville and ORD can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Louisville to Chicago O'Hare Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Chicago O'Hare Airport from Louisville up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Louisville to Chicago O'Hare Intl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $268 or less one-way and $420 or less round-trip.

Prefer to fly direct from Louisville to Chicago O'Hare Airport?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Louisville Intl to Chicago O'Hare Intl.
Find which airlines fly direct from Louisville Intl Airport to Chicago O'Hare Intl Airport, which days they fly and book direct flights.

Direct departures

Louisville Intl to Chicago O'Hare Intl

Monday

American Airlines,United Airlines

American Airlines,United Airlines

Tuesday

American Airlines,United Airlines

American Airlines,United Airlines

Wednesday

American Airlines,United Airlines

American Airlines,United Airlines

Thursday

American Airlines,United Airlines

American Airlines,United Airlines

Friday

American Airlines,United Airlines

American Airlines,United Airlines

Saturday

American Airlines,United Airlines

American Airlines,United Airlines

Sunday

American Airlines,United Airlines

American Airlines,United Airlines

See more direct flights

Direct returns

Chicago O'Hare Intl to Louisville Intl

Monday

American Airlines,United Airlines

American Airlines,United Airlines

Tuesday

American Airlines,United Airlines

American Airlines,United Airlines

Wednesday

American Airlines,United Airlines

American Airlines,United Airlines

Thursday

American Airlines,United Airlines

American Airlines,United Airlines

Friday

American Airlines,United Airlines

American Airlines,United Airlines

Saturday

American Airlines,United Airlines

American Airlines,United Airlines

Sunday

American Airlines,United Airlines

American Airlines,United Airlines

See more direct flights

Reviews of the top airlines flying from Louisville to O'Hare Intl

 
See real verified KAYAK customer reviews for airlines flying from Louisville to Chicago. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Louisville to O'Hare Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 10062 reviews
7.3Comfort
7.7Boarding
6.7Food
7.1Entertainment
8.1Crew
Airline reviews

The flight crew were very helpful. The seats were very close together. There was barely room to sit without touching the person next to you.

4.0 OkayN, Jul 2026
PHL - ORD
Read more United Airlines reviews

The flight crew were very helpful. The seats were very close together. There was barely room to sit without touching the person next to you.

I’m an EP on AA every year for more than a decade but this was a very pleasant and surprising experience. Clean and sizable plane for HOU to CHI. 5 row first class. And excellent food in first class the steak option was really good. Your flight attendants even better. Seat 5A

Gluten free snack options and meals that offer both gluten free and dairy free.

Not a bad flight but a long delay boarding and taking off due to the pilot not arriving on time.

I would have preferred a flight voucher and to hop on a different flight. Delayed over 6 hours.

I almost missed my connection in Chicago due to having to wait on a gate to be open I am assuming. Having to run from E terminal to C terminal and I barely made it there before they closed the door. This may not be the actual airline's fault it's crazy how there is so little time between flight especially when they are placed so far apart in the airport.

The Wi-Fi did not work, so you weren't able to watch entertainment on your own device. They did not have wired headphones so you couldn't watch it on the in-seat entertainment screen either. There was plenty of time to do a drink and snag service but the flight attendants chose not to.

Great experience, boarding was fast and efficient, so much so that we arrived to Chicago very early

The male air hostess was rude and didn’t provide good customer service. Didn’t even offer me a drink

This trip was a Christmas gift to our family. We were flying from Lexington to Palm Springs. When we were checking in the ticket agent said one bags was over weight by 4 LBS. We were flying first class which has baggage weight of 70 LBS per bag, one bag was 54LBS. We then had to take items from one bag to another. The agent also saw we had a dog with us. Once on the plane we were seated with the dog in the carrier. The United ticket agent came in the plane with two other people, I believe one was TSA and the other some security officer. The United agent said we had not paid for the dog ticket. We had paid for the ticket when we purchased our tickets. She did not give me time to find the email receipt. She then threatened all three of us with either I come with her or she would have all three of physically removed from the plane. I left the plane to pay for another ticket. She had to take my credit back to where we checked in. She acted as if it needed to be done immediately. She said we had 3 minutes. We then sat at the gate for approximately another 45 minutes. This was so embarrassing…to be threatened to be removed from a plane that we paid for all tickets including the dog. The flight attendance on the next leg of our trip were not very attentive to the passengers. On the plus side all the flights were on time. All in all, this was a miserable way to start a holiday vacation. United Airlines showed no compassion towards the whole incident. I feel we were purposely neglected.

My seat had a worn out cushion, which made it a bit uncomfortable. Other than that, the flight was excellent.

Take this flight regularly. Every single week same thing. Departure delayed. Make up some time in the air. Land at ORD and then wait for gate in "L" concourse Terminal 3 for 30-40 min-which yields a very delayed final arrival. Plus I get to taxi around and see every runway and drive over the bridge (IFKYK) over the expressway 2-4 times in most cases. Change the sched of incoming plane/work with FAA to improve traffic flow at ORD/change the timing of these flights. Whatever it takes. But do better.

- flight was delayed several hours due to weather (understandable) - flight delayed further and we were told by attendants "we are not sure where the pilots are but they are on their way" as we have to find different pilots for the flight - announcements over the PA were somewhat unprofessional by the attendants, seems they need more training and were not reading off the script. They showed their young age and immaturity in their communications with the passengers. They were not clear and lacked professional communication language. - going from a hub to hub we were also parked at the tarmac at ohare for an additional hour and kept being told "few more minutes". Please just let the passengers know the real wait time instead of hiding the truth. We understand there is traffic and weather delays, but we just want transparency. There are several logistics of our lives that revolve around what the attendants and pilots are sharing with us but they are not being transparant.

Boarding and Delays The boarding process for my American Airlines flight from Copenhagen to Philadelphia was a bit tricky. We experienced a gate change that required a long walk to a new area of the airport. Additionally, boarding was not via a jet bridge; we had to take a shuttle bus to the plane and then carry our luggage up the stairs ourselves. Furthermore, the bag drop didn't open until about 12:20 PM, which was only three hours before our scheduled departure. This meant I couldn't drop my bag off early and had to wait outside of security in order to drop off my bag and use the kiosk. The bag drop self-service kiosks also didn't open until about 12:00 PM when an American Airlines employee unlocked them so that we could print out our boarding passes and bag tags, which further created a backlog. The flight was delayed by over an hour because we had to wait for one of the tires on the plane to be changed. Flight Attendant Professionalism On a positive note, the flight attendant was very professional when handling a passenger who was sitting in the wrong seat. Even though the passenger was persistent and reluctant to move, the flight attendant calmly ensured the assigned passenger could take their seat. Kudos to the flight attendant for keeping his calm and composure, not allowing the issue to escalate, and handling it well under pressure while a line of passengers waited in the aisle to board. In-Flight Service The in-flight service was also fast, prompt, and efficient, although service had to be suspended for the last two hours of the flight due to weather and turbulence, which was outside of the crew's control. Limited Flight Options Please note that American Airlines only operates one flight per day in and out of Copenhagen. This means there are limited options available if your flight is delayed or canceled, which is something to take into consideration when booking.

I will never but. through kayak again. and American Airlines. I will never fly again on. They're both thieves.

Nothing, I wont be flying American Airlines again and will not be recommending anyone to fly American Airlines. It was the worst experience flying I've ever had.

My luggage was not sent with us. Not sure if this is Envoy Air responsibility but that was a very BAD experience

The planes can use an actual cleaning. The armrest and seats do not appear to be cleaned on this one and most other planes.

To start, I’d like to say that every American Airline personnel I interacted with on the ground, especially flight crew, was very friendly and did their best to help me out. Despite this, however, my experience with the airline was an entire mess. The 7:19 PM flight was heavily delayed due to weather, and pushed to 10:30 AM the next morning. Because of this, I had to spend the night inside of the airport. At some point later in the night, I got an email saying that the flight had been canceled. I called the support number, and the representative on the other line told me that the flight was still on and that I didn’t need to rebook. The next morning, no one came to the gate to open the door for the crew until almost 11 AM. By this time the flight crew had been waiting for over an hour, and they had called management to get someone to open the door for them multiple times. Around 11:30, the gate screen had changed to a different flight. I ended up buying a last minute ticket with Southwest airline just to get to Chicago, because the next flight with American wasn’t until 7:19 pm that day. Now, earlier that morning my suitcase had been sent ahead of me to ORD. I went to baggage claim to ask them if I could have my suitcase forwarded to where I was staying. The representative at SDF baggage claim said they could and put the claim in for me. As I was going back through TSA, I got an email that the airline had found my suitcase, but the next step was to send it BACK to SDF. I called the airline support number again, and I made it clear that my suitcase needed to stay in Chicago and to not come back to SDF. The representative told me that they would hold my suitcase at ORD and that it wasn’t going to be forwarded anywhere. Once I got there, I found that they had loaded my suitcase onto a plane to send it back to SDF. Thankfully, I had gotten to the baggage claim counter in time for them to put in a request to bring my suitcase back up. My refund with the airline is processing already, but because of this entire experience and miscommunication at every turn of the way, I will not book with American Airlines in the future.

They needed to de-ice the plane. Apparently airlines have a problem keeping their de-icing vehicles in good repair. After we backed away from the gate we sat and didn't move for nearly an hour. Nearly an HOUR with minimal communication from the flight crew. Eventually the sun took care of what American Airlines could not and melted the minimal ice. We finally took of a hour late which, in turn, jacked up our connection in Chicago.

Everything you need to know for your flight from Louisville to O'Hare Intl

Information on your arrival and departure airports