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

Southwest, United Airlines, and American Airlines are the most popular carriers operating from Chicago to Louisville Intl

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

207 flights are operational weekly from Chicago to Louisville as of December 2025. The most popular departure day for this route is Mon, with 19% of flights per week taking off on this day.

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

The number of flights available between Chicago and Louisville is 29 per day as of December 2025. The most frequent departure time is 7:00PM, with 40% of daily flights leaving in the evening.

What airlines fly to Louisville?

American Airlines, United Airlines and Southwest are the top three most popular airlines that fly to Louisville from Chicago according to our data. American Airlines is the first choice among our users, with 48% of people opting to fly with this airline when traveling to Louisville. Keep in mind that there are 4 different airlines that fly to Louisville on a routine basis, so you have a few additional options to choose from.

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

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

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

As of December 2025, there are 3 operators available to choose from for flights from Chicago to Louisville Intl Airport.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Chicago to Louisville Intl Airport.

What documentation or ID do you need to fly to Louisville Intl Airport?

The travel and health documents you'll need for your trip to Louisville Intl Airport 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 Louisville Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$67 Cheap Flights from Chicago to Louisville in 2025/26

Q: What is the typical price of a round-trip flight between Chicago and Louisville?

Prices are currently low for flights on this route. Typical prices usually range from $223 to $328. The lowest price recently found on this route was $133.

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Find the cheapest flights from Chicago to Louisville

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:52 pm - 10:30 pm

ORD

SDF

1h 38mnonstop

2:05 pm - 2:49 pm

SDF

ORD

1h 44mnonstop

$133United Airlines

Tue, Jan 20 - Wed, Jan 21

8:49 pm - 11:19 pm

ORD

SDF

1h 30mnonstop

1:32 pm - 2:20 pm

SDF

ORD

1h 48mnonstop

$134American Airlines

Wed, Feb 4 - Wed, Feb 11

10:00 am - 12:15 pm

MDW

SDF

1h 15mnonstop

4:05 pm - 4:25 pm

SDF

MDW

1h 20mnonstop

$152Southwest

Tue, Jan 20 - Sat, Jan 24

4:08 pm - 6:39 pm

ORD

SDF

1h 31mnonstop

8:06 am - 8:59 am

SDF

ORD

1h 53mnonstop

$152American Airlines

Tue, Jan 13 - Thu, Jan 15

10:00 am - 12:15 pm

MDW

SDF

1h 15mnonstop

4:05 pm - 4:25 pm

SDF

MDW

1h 20mnonstop

$157Southwest

Wed, Jan 21 - Sat, Jan 24

5:30 am - 11:37 am

ORD

SDF

5h 07m1 stop

7:00 am - 1:40 pm

SDF

ORD

7h 40m1 stop

$157Delta

Wed, Feb 4 - Wed, Feb 11

9:32 am - 7:39 pm

MDW

SDF

9h 07m2 stops

7:00 am - 11:59 am

SDF

MDW

5h 59m1 stop

$162Delta

Wed, Feb 4 - Wed, Feb 11

10:35 am - 6:13 pm

ORD

SDF

6h 38m1 stop

10:41 am - 5:55 pm

SDF

ORD

8h 14m2 stops

$162Delta

Wed, Feb 4 - Wed, Feb 11

6:50 am - 1:35 pm

MDW

SDF

5h 45m1 stop

4:05 pm - 4:25 pm

SDF

MDW

1h 20mnonstop

$167Southwest

Wed, Jan 21 - Sat, Jan 24

7:52 pm - 10:30 pm

ORD

SDF

1h 38mnonstop

8:29 am - 9:13 am

SDF

ORD

1h 44mnonstop

$171United Airlines

Mon, Jan 19 - Mon, Jan 26

Southwest flights from Chicago to Louisville

Our best Southwest deals on Chicago to Louisville flight tickets

Southwest

Jan 20

MDW10:00 amChicago Midway

1h 15m

SDF12:15 pmLouisville Intl

Jan 24

SDF4:05 pmLouisville Intl

1h 20m

MDW4:25 pmChicago Midway

$152

Find similar

Southwest

Jan 21

MDW10:00 amChicago Midway

1h 15m

SDF12:15 pmLouisville Intl

Jan 24

SDF4:05 pmLouisville Intl

1h 20m

MDW4:25 pmChicago Midway

$157

Find similar

Southwest

Jan 21

MDW6:50 amChicago Midway

5h 45m

1 stop

SDF1:35 pmLouisville Intl

Jan 24

SDF4:05 pmLouisville Intl

1h 20m

MDW4:25 pmChicago Midway

$167

Find similar

Delta flights from Chicago to Louisville

Our best Delta deals on Chicago to Louisville flight tickets

Delta

Feb 4

ORD5:30 amChicago O'Hare Intl

5h 07m

1 stop

SDF11:37 amLouisville Intl

Feb 11

SDF7:00 amLouisville Intl

7h 40m

1 stop

ORD1:40 pmChicago O'Hare Intl

$157

Find similar

Delta

Feb 4

ORD10:35 amChicago O'Hare Intl

6h 38m

1 stop

SDF6:13 pmLouisville Intl

Feb 11

SDF10:41 amLouisville Intl

8h 14m

2 stops

ORD5:55 pmChicago O'Hare Intl

$162

Find similar

Delta

Feb 4

ORD10:35 amChicago O'Hare Intl

8h 04m

2 stops

SDF7:39 pmLouisville Intl

Feb 11

SDF6:23 amLouisville Intl

7h 50m

2 stops

ORD1:13 pmChicago O'Hare Intl

$167

Find similar

Fly from

Fly to

Route

Depart

Return

Price

ChicagoLouisville

ORD - SDF

ORDSDF

Chicago O'Hare Intl

Tue 1/20

7:52 pm-10:30 pm

Nonstop1h 38m

Louisville Intl

Wed 1/21

2:05 pm-2:49 pm

Nonstop1h 44m

$133

ChicagoLouisville

ORD - SDF

ORDSDF

Chicago O'Hare Intl

Wed 2/4

8:49 pm-11:19 pm

Nonstop1h 30m

Louisville Intl

Wed 2/11

1:32 pm-2:20 pm

Nonstop1h 48m

$134

ChicagoLouisville

MDW - SDF

MDWSDF

Chicago Midway

Tue 1/20

10:00 am-12:15 pm

Nonstop1h 15m

Louisville Intl

Sat 1/24

4:05 pm-4:25 pm

Nonstop1h 20m

$152

ChicagoLouisville

ORD - SDF

ORDSDF

Chicago O'Hare Intl

Tue 1/13

4:08 pm-6:39 pm

Nonstop1h 31m

Louisville Intl

Thu 1/15

8:06 am-8:59 am

Nonstop1h 53m

$152

ChicagoLouisville

MDW - SDF

MDWSDF

Chicago Midway

Wed 1/21

10:00 am-12:15 pm

Nonstop1h 15m

Louisville Intl

Sat 1/24

4:05 pm-4:25 pm

Nonstop1h 20m

$157

ChicagoLouisville

ORD - SDF

ORDSDF

Chicago O'Hare Intl

Wed 2/4

5:30 am-11:37 am

1 stop5h 07m

Louisville Intl

Wed 2/11

7:00 am-1:40 pm

1 stop7h 40m

$157

ChicagoLouisville

MDW - SDF

MDWSDF

Chicago Midway

Wed 2/4

9:32 am-7:39 pm

2 stops9h 07m

Louisville Intl

Wed 2/11

7:00 am-11:59 am

1 stop5h 59m

$162

ChicagoLouisville

ORD - SDF

ORDSDF

Chicago O'Hare Intl

Wed 2/4

10:35 am-6:13 pm

1 stop6h 38m

Louisville Intl

Wed 2/11

10:41 am-5:55 pm

2 stops8h 14m

$162

ChicagoLouisville

MDW - SDF

MDWSDF

Chicago Midway

Wed 1/21

6:50 am-1:35 pm

1 stop5h 45m

Louisville Intl

Sat 1/24

4:05 pm-4:25 pm

Nonstop1h 20m

$167

ChicagoLouisville

ORD - SDF

ORDSDF

Chicago O'Hare Intl

Mon 1/19

7:52 pm-10:30 pm

Nonstop1h 38m

Louisville Intl

Mon 1/26

8:29 am-9:13 am

Nonstop1h 44m

$171

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 Chicago to Louisville

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 typical price of a round-trip flight between Chicago and Louisville?

What is the cheapest month to fly to Louisville?

If you are unable to visit Louisville during the month of August, then departing from Chicago during the month January is also very affordable. Most momondo users find prices during this month for around $216.

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

On average, the least expensive day to fly to Louisville from Chicago is on a Saturday. momondo users have found tickets for Saturday departures for as low as $250. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Chicago to Louisville on a Monday will generally be more expensive and average around $534. 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 Louisville?

Our data shows that the cheapest Chicago to Louisville flights are usually those with departure times in the evening. Our users have found flights to Louisville in the evening for as low as $280. At noon is when there is more demand to fly to Louisville, so prices are often more expensive at around $305 per ticket.

What is the cheapest Chicago to Louisville Intl flight route?

Fly from Chicago O'Hare Intl to Louisville Intl for the best Chicago - Louisville Intl flight prices

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

You are more likely to see cheaper flights to Louisville from Chicago when booking weeks ahead of your departure date. In general, you can expect to find flights to Louisville for around $310 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Louisville from Chicago for as low as $185 on momondo.

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

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

How have Chicago to Louisville flight prices changed over time?

As of December 2025, prices for Chicago to Louisville flights are approximately 25% cheaper when compared to flights at the same time last year.

When to book flights from Chicago to Louisville

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago to Louisville according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Chicago to Louisville (CHI to SDF) flight deals and tips

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

Best Price Found	$352
Fastest flight time	1h 10m
Direct flights	Every day
Airports in Louisville	1 airport

The best one-way flight to Louisville from Chicago in the past 72 hours is $352. The best round-trip flight deal from Chicago to Louisville found on momondo in the last 72 hours is $194.

The fastest flight from Chicago to Louisville takes 1h 10m

Direct flights go from Chicago to Louisville every day.

There is 1 airport in Louisville. From Chicago there are direct flights to Louisville Intl (SDF).

Search flight deals

How far is Chicago to Louisville Intl by plane?
Chicago and Louisville Intl are 269.2 mi apart from one another. By plane, this route typically takes 1h 10m.
When did momondo last update prices for flights from Chicago to Louisville Intl Airport?
Prices for flights from Chicago to Louisville Intl Airport refresh daily.
How many operators does momondo search for flights from Chicago to Louisville Intl Airport?
As of December 2025, there are 3 operators available to choose from for flights from Chicago to Louisville Intl Airport.
How old do you have to be to fly from Chicago to Louisville Intl Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Chicago to Louisville Intl Airport.
What documentation or ID do you need to fly to Louisville Intl Airport?
The travel and health documents you'll need for your trip to Louisville Intl Airport 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 Louisville Intl Airport. 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 Chicago to Louisville?
Based on momondo bookings for flights between Chicago and Louisville, the leading plane model is Embraer 175 (Enhanced Winglets), making up 19.96% of the total bookings. Other popular models include Embraer 175 with 19.54%, Canadair (Bombardier) Regional Jet CRJ-550 with 18.92%, and Embraer 170 with 7.48%.
What is the most popular airline from Chicago to Louisville?
momondo data reveals that the most frequently booked airline on the route from Chicago to Louisville is Southwest, representing 39% of all bookings. The subsequent popular airlines are American Airlines at 34% and United Airlines at 26%.

Best airlines flying from Chicago to Louisville

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

Airline	Rating	Free Cancellation	Price
Southwest	PriceFrom $124	Free Cancellation	Rating 8.0 4,253 reviews	Search Southwest flights
United Airlines	PriceFrom $127	Free Cancellation	Rating 7.4 9,105 reviews	Search United Airlines flights
American Airlines	PriceFrom $136	Free Cancellation	Rating 7.2 11,054 reviews	Search American Airlines flights

Southwest Flights From Chicago to Louisville
Southwest flies from Chicago to Louisville around 8 times per week, with 4,253 momondo users rating the airline 8.0/10. The cheapest Southwest deal from Chicago to Louisville in the last 72 hours was $124 (round-trip), much lower than the average airfare cost of $404 for Southwest flights on this route.
United Airlines Flights From Chicago to Louisville
United Airlines is also a popular choice for this route. United Airlines flight deals for Chicago to Louisville start from as low as $127 round-trip, depending on your selected dates, with average United Airlines deals seen on momondo around $287. United Airlines operates 31 flights to Louisville from Chicago in an average week. Users have rated it 7.4/10 across 9,105 reviews.

French Lick

Elizabethtown

West Baden Springs

Bardstown

Jeffersonville

Shepherdsville

New Albany

Corydon

Elizabeth

Charlestown

Brandenburg

Springfield

Georgetown

Why use momondo?

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

It is quick and easy to find Chicago to Louisville flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Louisville that suits you.

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

All flight searches from Chicago to Louisville on momondo can be filtered to show those which offer flexible booking policies.

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

Once you have performed a search for Chicago to Louisville 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 Chicago to Louisville right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Louisville from Chicago. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Louisville 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.

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Flights to Dallasfrom $51

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Cheap flights from Chicago to Louisville from $67

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Louisville departing on 1/21. 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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Southwest flights from Chicago to Louisville

Our best Southwest deals on Chicago to Louisville flight tickets

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Our best Delta deals on Chicago to Louisville flight tickets

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See travel insights to Louisville from

How to get the cheapest flight ticket from Chicago to Louisville

What is the typical price of a round-trip flight between Chicago and Louisville?

What is the cheapest month to fly to Louisville?

If you are unable to visit Louisville during the month of August, then departing from Chicago during the month January is also very affordable. Most momondo users find prices during this month for around $216.

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

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

What is the cheapest Chicago to Louisville Intl flight route?

Fly from Chicago O'Hare Intl to Louisville Intl for the best Chicago - Louisville Intl flight prices

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

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

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

How have Chicago to Louisville flight prices changed over time?

As of December 2025, prices for Chicago to Louisville flights are approximately 25% cheaper when compared to flights at the same time last year.

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

Southwest, United Airlines, and American Airlines are the most popular carriers operating from Chicago to Louisville Intl

What airlines fly to Louisville?

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

The number of flights available between Chicago and Louisville is 29 per day as of December 2025. The most frequent departure time is 7:00PM, with 40% of daily flights leaving in the evening.

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

207 flights are operational weekly from Chicago to Louisville as of December 2025. The most popular departure day for this route is Mon, with 19% of flights per week taking off on this day.

When to book flights from Chicago to Louisville

Cheap Chicago to Louisville (CHI to SDF) flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Louisville

How far is Chicago to Louisville Intl by plane?

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

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

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

What documentation or ID do you need to fly to Louisville Intl Airport?

What is the most popular plane model from Chicago to Louisville?

What is the most popular airline from Chicago to Louisville?

Best airlines flying from Chicago to Louisville

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

Southwest Flights From Chicago to Louisville

United Airlines Flights From Chicago to Louisville

Traveling to a place near Louisville?

Why use momondo?

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

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

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

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

An easier way to manage your Louisville 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 the United States

Airports servicing Kentucky