$46 Find Cheap Flights from Louisville to Illinois

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 Illinois departing on 11/24. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Illinois

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Louisville to Illinois, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Louisville to Illinois, as well as popular online travel agencies
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Cheap Flights from Louisville to Illinois

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Chicago
Chicagononstop$131
Moline
Moline1 stop$239
St. Louis
St. Louis1 stop$243
Chicago
Chicagononstop$131
Moline
Moline1 stop$239
St. Louis
St. Louis1 stop$243

Book Cheap Louisville to Illinois Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Louisville to Illinois 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 Illinois

jue., nov. 20 - lun., nov. 24
American Airlines Logo
6:04 am - 6:44 amSDF-ORD
1h 40mnonstop
American Airlines Logo
9:41 am - 12:13 pmORD-SDF
1h 32mnonstop
$131American Airlines
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jue., nov. 20 - lun., nov. 24
Southwest Logo
6:45 am - 7:00 amSDF-MDW
1h 15mnonstop
Southwest Logo
9:30 am - 11:45 amMDW-SDF
1h 15mnonstop
$131Southwest
Find Deal
jue., nov. 20 - lun., nov. 24
American Airlines Logo
7:38 am - 8:18 amSDF-ORD
1h 40mnonstop
American Airlines Logo
8:25 pm - 10:55 pmORD-SDF
1h 30mnonstop
$132American Airlines
Find Deal
lun., nov. 10 - mar., nov. 11
Southwest Logo
6:35 am - 6:50 amSDF-MDW
1h 15mnonstop
Southwest Logo
8:50 pm - 11:05 pmMDW-SDF
1h 15mnonstop
$134Southwest
Find Deal
jue., nov. 27 - jue., nov. 27
United Airlines Logo
9:00 am - 9:40 amSDF-ORD
1h 40mnonstop
United Airlines Logo
1:55 pm - 4:27 pmORD-SDF
1h 32mnonstop
$151United Airlines
Find Deal
mar., nov. 11 - mar., nov. 11
United Airlines Logo
7:00 am - 7:40 amSDF-ORD
1h 40mnonstop
United Airlines Logo
7:55 pm - 10:29 pmORD-SDF
1h 34mnonstop
$171United Airlines
Find Deal
jue., nov. 20 - lun., nov. 24
Delta Logo
7:54 pm - 12:02 amSDF-ORD
5h 08m1 stop
Delta Logo
6:00 am - 11:57 amORD-SDF
4h 57m1 stop
$184Delta
Find Deal
jue., nov. 20 - lun., nov. 24
Delta Logo
7:50 am - 12:34 pmSDF-MDW
5h 44m1 stop
Delta Logo
6:00 am - 2:04 pmMDW-SDF
7h 04m1 stop
$184Delta
Find Deal
vie., nov. 7 - lun., nov. 10
Spirit Airlines Logo
7:11 pm - 11:12 amSDF-ORD
17h 01m1 stop
Spirit Airlines Logo
5:10 am - 6:16 pmORD-SDF
12h 06m1 stop
$209Spirit Airlines
Find Deal
vie., nov. 7 - lun., nov. 10
Spirit Airlines Logo
7:11 pm - 2:29 pmSDF-ORD
20h 18m2 stops
Spirit Airlines Logo
5:10 am - 6:16 pmORD-SDF
12h 06m1 stop
$237Spirit Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Louisville to Illinois flights

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

What is the cheapest Louisville to Illinois flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Illinois from Louisville found in the last 72 hours was to Chicago, at $133 round-trip. The most popular route is from Louisville (SDF) to Chicago O'Hare Intl Airport (ORD), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $198.

Can I save money by flying with a layover from Louisville to Illinois?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $202, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Louisville to Illinois?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Louisville to Illinois, 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 Illinois is November, when tickets cost $196 (return) on average. On the other hand, the most expensive months are March and January, when the average cost of round-trip tickets is $287 and $275 respectively.

What’s the cheapest day of the week to fly from Louisville to Illinois?

The average price of all round-trip flights from Louisville to Illinois clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Illinois on a Thursday and more expensive on a Sunday. On your return trip to Louisville, you should consider flying back on a Saturday, and avoid Mondays for better deals.

How far in advance should I book a flight from Louisville to Illinois?

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 Illinois, 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 Illinois, you should book around 4 weeks before departure, which saves you about 67% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 4 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$46
Best time to beat the crowds but there is an average 17% increase in price.
Most popular time to fly and prices are also 13% lower on average.
Flight from Louisville to Chicago O'Hare Airport

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Louisville to Illinois?

    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 Illinois.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Louisville to Illinois 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 Illinois?

    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 from Louisville to Illinois with an airline and back with another airline.

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

    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 from Louisville to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Illinois?

    The cheapest time of day to fly to Illinois is generally in the morning, when round-trip flights cost $524 on average. Morning departures are around 40% cheaper than evening flights, on average. The most expensive time of day to fly to Illinois is generally in the evening, which is peak travel time and where the average cost of a ticket is $881.

Top tips for finding cheap flights to Illinois

  • Looking for a cheap flight? 25% of our users found tickets from Louisville to the following destinations at these prices or less: Chicago $200 one-way - $303 round-trip; Chicago $141 one-way - $329 round-trip

Reviews of the top 3 airlines serving from Louisville to Illinois

 
See real verified KAYAK customer reviews for airlines flying from Louisville to Illinois. 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 Illinois? 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.
8.0
SouthwestOverall score based on 4235 reviews
8.0Comfort
7.5Entertainment
7.0Food
8.6Crew
8.1Boarding
Airline reviews

Flight was delayed due to plane not passing inspection And one of the crew had to time out and we had to wait for another one A 3 hour delay

4.0 OkayAnnette, Oct 2025LGA - MCI
Read more Southwest reviews

Flight was delayed due to plane not passing inspection And one of the crew had to time out and we had to wait for another one A 3 hour delay

mandatory demand customer to check their carry on because not enough people check bags.

Connecting flight is on time and boarding was a breeze!

Excellent. Would encourage Southwest to keep current boarding procedures with free style seating. Makes for a fantastic experience

As always, the entire Southwest experience was perfect. Purchasing the tickets on the Southwest web site was effortless, departure and arrival gates were spotless and comfortable, plane was clean and comfortable, crew was excellent and flight was on time. Wheelchair service in Las Vegas at departure was somewhat chaotic and disjointed, but I am not sure if that was Southwest problem, airport problem or combination.

I wish they had movie screens in the headrests. The seats are much improved, more legroom and recently renovated. Bathroom was clean. Staff was outstanding!!

As always, the entire Southwest experience was wonderful, from online booking to flight to baggage retrieval. Very grateful.

The weather could have been better. There was a 40 minute ATC delay in SFO because of marine fog and a micro cell storm delayed landing and take-off at Nashville. The gate was changed 5 minutes from boarding from gate B3 to gate C23 at Nashville airport.

After being assaulted by a flight attendant I was then brushed off as oh well because he long braids didn’t mean to whip me in the eye. I have filed complaints and will see. But like any other issue I’ve had with kayak involved it’s been trash. Last time I’ll be using your app

AC sub par. WiFi not working correctly. Ac sucked. Seats very narrow.

Trip was great. A wild landing in Ottawa with the wind and rain, but the pilot did a great job. Always love flying United.👍

Excellent experience. Starting with the agent at the Premier bag drop who noticed I was very early for my scheduled flight and offered to rebook me on an earlier flight with my seat preference. She would not let me leave the counter until she knew that all of the changes and new boarding pass showed up on my United app. At the gate, the flight boarded quickly such that we departed early and the flight was smooth. We arrived 20 minutes early at ORD and I was able to be home in time for dinner. One of the best flights I've had.

Salina to travers city was great! But the sept 24 Tranverse city was not! Traverse city to chichago was cancelled, i went to Denver & got to Salina 6 hours later!

See previous note about the passenger in Denver who threw my husband's bag out of the overhead bin in order to maker room for his own. And the flight attendant back up the new passenger.

Flight attendant in first class gave poor service (like he didn't want to be there) and food was awful. We sat waiting for gate upon arrival over 45 mins.

Weather delay in Chicago?. No sense of urgency to make connection in Chicago for our connecting flight that wasn't delayed. Connection was missed.

Overall it was good. I missed my connection but I was put on another flight.

Overall a very poor experience - booked premium economy tickets but due to last minute flight delays , all my itinery went for a toss and had to fly economy class with no access to lounge or any compensation by united airlines to make up for the flight delays . i had expected better experience than that from united.

It was fine, definitely older planes with no charging or anything. There’s no entertainment set up on board, but it is nice that they allow you to access the in flight entertainment from your phone without having to pay for the Wi-Fi and they do offer free texting.

I liked that the flight was nonstop from ORD to CIU for $200 round trip.

It was a typical flight. We had a delay which seems to be the normality now. And we had no in flight service due to conditions.

After we landed we sat on the tarmac for 1.5 hours waiting to get to our gate. Ridiculous.

Terrible. Flight delayed for more than 8 hours with only a $12 meal voucher provided for the inconvenience. The airplane did not have breaks on arrival yet they still made us go through the motions and board on time knowing we could not take off then sit for 40+ minutes before having to get of the time. A complete waste of my time. I cannot believe they can stay business with these shenanigans. I’ll avoid this company like the plague moving forward as the lack of accountability is disgraceful.

This was the best 2 flights I have had with American out of SGF. Great crew both flights.

Excellent - explanations were clear staff was nice and flight was comfortable

Lost bag and 2 days no word leaving for cruise no clothes or stuff

Any flight to ORD after about 2pm this summer has been challenging. Flight was delayed getting in (coming from ORD) and that led to it not leaving before a ground stop due to lightening before they could fuel the plane, and so forth. They made up some time but we were still late in arriving at ORD, and that led to missed connections.

Food was ok, but not as good as I have had before on AA.

Pretty good. The food was just mediocre, the boarding and crew were good.

My flight got switched and my prepaid bag didnt transfer over properly so I paid to check ANOTHER BAG. I was placed in a middle seat and it was just miserable. At least it was a bulkhead row so I had legroom. The flight just never seem3d to end

Everything you need to know for your flight from Louisville to Illinois

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