What is the cheapest airline that flies from Louisville Intl to Illinois?

American Airlines, United Airlines, and Delta are the most popular carriers operating from Louisville Intl to Illinois

How many flights depart from Louisville to Illinois on average per day?

36 flights are operational daily from Louisville to Illinois as of February 2026. The most popular departure time for this route is 8:00AM, with 38% of flights per day taking off at noon.

How many flights depart from Louisville to Illinois on average per week?

As of February 2026, there are 255 flights per week flying from Louisville to Illinois. The most common day of the week flights depart is Sun, with 16% of flights taking off on this day.

What airlines fly to Illinois?

American Airlines, United Airlines and Southwest are the top three most popular airlines that fly to Illinois from Louisville according to our data. American Airlines is the first choice among our users, with 44% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 4 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Louisville Intl Airport to Illinois?

Prices for flights from Louisville Intl Airport to Illinois refresh daily.

How many operators does momondo search for flights from Louisville Intl Airport to Illinois?

The number of operators available for flights from Louisville Intl Airport to Illinois is 4 as of February 2026.

How old do you have to be to fly from Louisville Intl Airport to Illinois?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to Illinois.

What documentation or ID do you need to fly to Illinois?

The travel and health documents you'll need for your trip to Illinois may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Illinois. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$52 Cheap Flights from Louisville to Illinois in 2026

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Find the cheapest flights from Louisville to Illinois

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:00 am - 9:44 am

SDF

ORD

1h 44mnonstop

7:40 pm - 10:13 pm

ORD

SDF

1h 33mnonstop

$103United Airlines

Sat, Mar 14 - Sat, Mar 21

6:10 am - 6:52 am

SDF

ORD

1h 42mnonstop

2:52 pm - 5:18 pm

ORD

SDF

1h 26mnonstop

$140American Airlines

Sat, Mar 7 - Tue, Mar 10

7:30 am - 8:12 am

SDF

ORD

1h 42mnonstop

2:52 pm - 5:18 pm

ORD

SDF

1h 26mnonstop

$147American Airlines

Sat, Mar 14 - Tue, Mar 17

12:34 pm - 6:40 pm

SDF

MDW

7h 06m

1 stop

1:10 pm - 5:15 pm

MDW

SDF

3h 05m

1 stop

$157Delta

Sat, Mar 14 - Sat, Mar 21

7:20 am - 8:00 am

SDF

ORD

1h 40mnonstop

9:15 pm - 11:46 pm

ORD

SDF

1h 31mnonstop

$159United Airlines

Thu, Apr 16 - Sat, Apr 18

6:46 am - 7:23 am

SDF

ORD

1h 37mnonstop

11:22 am - 1:57 pm

ORD

SDF

1h 35mnonstop

$163American Airlines

Thu, Jul 2 - Sat, Jul 4

7:05 pm - 7:25 pm

SDF

MDW

1h 20mnonstop

6:15 pm - 8:30 pm

MDW

SDF

1h 15mnonstop

$177Southwest

Tue, Mar 24 - Tue, Mar 31

6:33 am - 7:15 am

SDF

ORD

1h 42mnonstop

10:28 am - 4:29 pm

ORD

SDF

5h 01m

1 stop

$177American Airlines

Sat, Mar 14 - Tue, Mar 17

7:45 am - 1:24 pm

SDF

ORD

6h 39m

1 stop

9:50 am - 5:15 pm

ORD

SDF

6h 25m

1 stop

$184Delta

Sat, Mar 14 - Tue, Mar 17

11:50 am - 12:05 pm

SDF

MDW

1h 15mnonstop

5:30 pm - 10:15 pm

MDW

SDF

3h 45m

1 stop

$187Southwest

Tue, Mar 17 - Wed, Mar 18

American Airlines flights from Louisville to Illinois

Our best American Airlines deals on Louisville to Illinois flight tickets

American Airlines

Mar 7

SDF6:10 amLouisville Intl

1h 42m

ORD6:52 amChicago O'Hare Intl

Mar 10

ORD2:52 pmChicago O'Hare Intl

1h 26m

SDF5:18 pmLouisville Intl

$140

American Airlines

Mar 14

SDF7:30 amLouisville Intl

1h 42m

ORD8:12 amChicago O'Hare Intl

Mar 17

ORD2:52 pmChicago O'Hare Intl

1h 26m

SDF5:18 pmLouisville Intl

$147

American Airlines

Mar 14

SDF8:00 pmLouisville Intl

4h 58m

1 stop

ORD11:58 pmChicago O'Hare Intl

Mar 21

ORD8:30 amChicago O'Hare Intl

1h 30m

SDF11:00 amLouisville Intl

$177

Delta flights from Louisville to Illinois

Our best Delta deals on Louisville to Illinois flight tickets

Delta

Mar 14

SDF12:34 pmLouisville Intl

7h 06m

1 stop

MDW6:40 pmChicago Midway

Mar 21

MDW1:10 pmChicago Midway

3h 05m

1 stop

SDF5:15 pmLouisville Intl

$157

Delta

Mar 14

SDF7:45 amLouisville Intl

6h 39m

1 stop

ORD1:24 pmChicago O'Hare Intl

Mar 17

ORD9:50 amChicago O'Hare Intl

6h 25m

1 stop

SDF5:15 pmLouisville Intl

$184

Delta

Mar 14

SDF7:45 amLouisville Intl

6h 39m

1 stop

ORD1:24 pmChicago O'Hare Intl

Mar 17

ORD1:57 pmChicago O'Hare Intl

9h 00m

2 stops

SDF11:57 pmLouisville Intl

$189

Fly from

Fly to

Route

Depart

Return

Price

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Sat 3/14

9:00 am-9:44 am

Nonstop1h 44m

Chicago O'Hare Intl

Sat 3/21

7:40 pm-10:13 pm

Nonstop1h 33m

$103

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Sat 3/7

6:10 am-6:52 am

Nonstop1h 42m

Chicago O'Hare Intl

Tue 3/10

2:52 pm-5:18 pm

Nonstop1h 26m

$140

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Sat 3/14

7:30 am-8:12 am

Nonstop1h 42m

Chicago O'Hare Intl

Tue 3/17

2:52 pm-5:18 pm

Nonstop1h 26m

$147

LouisvilleChicago

SDF - MDW

SDFMDW

Louisville Intl

Sat 3/14

12:34 pm-6:40 pm

1 stop7h 06m

Chicago Midway

Sat 3/21

1:10 pm-5:15 pm

1 stop3h 05m

$157

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Thu 4/16

7:20 am-8:00 am

Nonstop1h 40m

Chicago O'Hare Intl

Sat 4/18

9:15 pm-11:46 pm

Nonstop1h 31m

$159

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Thu 7/2

6:46 am-7:23 am

Nonstop1h 37m

Chicago O'Hare Intl

Sat 7/4

11:22 am-1:57 pm

Nonstop1h 35m

$163

LouisvilleChicago

SDF - MDW

SDFMDW

Louisville Intl

Tue 3/24

7:05 pm-7:25 pm

Nonstop1h 20m

Chicago Midway

Tue 3/31

6:15 pm-8:30 pm

Nonstop1h 15m

$177

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Sat 3/14

6:33 am-7:15 am

Nonstop1h 42m

Chicago O'Hare Intl

Tue 3/17

10:28 am-4:29 pm

1 stop5h 01m

$177

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Sat 3/14

7:45 am-1:24 pm

1 stop6h 39m

Chicago O'Hare Intl

Tue 3/17

9:50 am-5:15 pm

1 stop6h 25m

$184

LouisvilleChicago

SDF - MDW

SDFMDW

Louisville Intl

Tue 3/17

11:50 am-12:05 pm

Nonstop1h 15m

Chicago Midway

Wed 3/18

5:30 pm-10:15 pm

1 stop3h 45m

$187

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Louisville to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Louisville is in November. Flight prices, which tend to average around $196, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of November, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $204.

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart from Louisville to Illinois is on a Thursday when prices can be found for as low as $491. Flights from Louisville to Illinois on a Sunday will generally be more expensive and average around $728. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is in the morning. Flights from Louisville to Illinois during this time can be as low as $496. Flights at noon are often more expensive with an average ticket price of $887.

What is the cheapest Louisville Intl to Illinois flight route?

Fly from Louisville Intl to Chicago Midway for the best Louisville Intl - Illinois flight prices

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

You are more likely to see cheaper flights to Illinois from Louisville when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $293 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Louisville for as low as $141 on momondo.

What cabin class options are available on Louisville Intl to Illinois flights?

There are 4 cabin classes available to choose from on Louisville Intl to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Louisville to Illinois flights?

You could potentially save up to 56% on your flight if you consider stops on a Louisville to Illinois flight.

Cheap Louisville to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Louisville to Illinois

Best Price Found	$190
Fastest flight time	1h 15m
Direct flights	Every day
Airports in Illinois	98 airports

The best one-way flight to Illinois from Louisville in the past 72 hours is $190. The best round-trip flight deal from Louisville to Illinois found on momondo in the last 72 hours is $348.

The fastest flight from Louisville to Illinois takes 1h 15m

Direct flights go from Louisville to Illinois every day.

There are 98 airports in Illinois. From Louisville there are direct flights to Chicago O'Hare Intl (ORD), Chicago Midway (MDW).

Search flight deals

When did momondo last update prices for flights from Louisville Intl Airport to Illinois?
Prices for flights from Louisville Intl Airport to Illinois refresh daily.
How many operators does momondo search for flights from Louisville Intl Airport to Illinois?
The number of operators available for flights from Louisville Intl Airport to Illinois is 4 as of February 2026.
How old do you have to be to fly from Louisville Intl Airport to Illinois?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to Illinois.
What documentation or ID do you need to fly to Illinois?
The travel and health documents you'll need for your trip to Illinois may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Illinois. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Louisville to Illinois?
momondo data reveals that the most frequently booked plane model on the route from Louisville to Illinois is Embraer 175 (Enhanced Winglets), representing 16.89% of all bookings. The subsequent popular models are Embraer 175 at 15.68%, Canadair (Bombardier) Regional Jet CRJ-550 at 13.00%, and Boeing 737 MAX 8 at 12.60%.

Best airlines flying from Louisville to Illinois

Compare and see reviews for airlines that fly from Louisville to Illinois with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $97	Free Cancellation	Rating 7.2 11,292 reviews	Search American Airlines flights
United Airlines	PriceFrom $97	Free Cancellation	Rating 7.4 9,306 reviews	Search United Airlines flights
Southwest	PriceFrom $97	Free Cancellation	Rating 8.0 4,287 reviews	Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Louisville to Illinois?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Louisville to Illinois. momondo saves you time and could save you money on your trip.

Can I find flights from Louisville to Illinois with flexible booking policies on momondo?

momondo does allow users to show only those flights to Illinois from Louisville which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Louisville to Illinois?

Once you have performed a search for Louisville to Illinois flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Louisville to Illinois right now. Can momondo alert me if prices change?

Price alerts on flights to Illinois from Louisville are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Popular cities in Illinois

Flights to New Yorkfrom $52

Flights to Los Angelesfrom $52

Flights to Miamifrom $49

Flights to Chicagofrom $53

Flights to Orlandofrom $49

Flights to San Franciscofrom $56

Flights to Las Vegasfrom $50

Flights to Washington, D.C.from $25

Flights to Bostonfrom $69

Flights to Atlantafrom $49

Flights to Dallasfrom $49

Flights to Seattlefrom $51

Cheap flights from Louisville to Illinois from $52

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Louisville to Illinois departing on 4/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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American Airlines flights from Louisville to Illinois

Our best American Airlines deals on Louisville to Illinois flight tickets

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Our best Delta deals on Louisville to Illinois flight tickets

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See travel insights to Illinois from

How to get the cheapest flight ticket from Louisville to Illinois

What is the cheapest month to fly to Illinois?

What is the cheapest day to depart on your flight to Illinois?

What is the cheapest time of day to depart on your flight to Illinois?

What is the cheapest Louisville Intl to Illinois flight route?

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

What cabin class options are available on Louisville Intl to Illinois flights?

Can stopping save me money on Louisville to Illinois flights?

What is the cheapest airline that flies from Louisville Intl to Illinois?

What airlines fly to Illinois?

How many flights depart from Louisville to Illinois on average per day?

How many flights depart from Louisville to Illinois on average per week?

Cheap Louisville to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Louisville to Illinois

Best Price Found

Fastest flight time

Direct flights

Airports in Illinois

Best airlines flying from Louisville to Illinois

Compare and see reviews for airlines that fly from Louisville to Illinois with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Louisville to Illinois?

Can I find flights from Louisville to Illinois with flexible booking policies on momondo?

How can momondo help me find flights from Louisville to Illinois?

I’m not ready to book a flight from Louisville to Illinois right now. Can momondo alert me if prices change?

An easier way to manage your Illinois trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Illinois

Popular cities in Illinois

Popular flights according to clicks in the last 7 days on momondo

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According to popular flight searches on momondo this year

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According to popular flight searches on momondo this year

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