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

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

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

191 flights are operational weekly from Louisville to Chicago as of February 2026. The most popular departure day for this route is Fri, with 20% of flights per week taking off on this day.

What airlines fly to Chicago?

American Airlines, United Airlines and Southwest are the top three most popular airlines that fly to Chicago 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 Chicago. Keep in mind that there are 4 different airlines that fly to Chicago on a routine basis, so you have a few additional options to choose from.

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

As of February 2026, there are 27 flights per day flying from Louisville to Chicago. The most common time of day flights depart is 8:00AM, with 38% of flights taking off at noon.

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

Prices for flights from Louisville Intl Airport to Chicago are updated daily.

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

The number of operators available for flights from Louisville Intl Airport to Chicago is 3 as of February 2026.

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

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 Chicago.

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

The travel and health documents required for your trip to Chicago can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Chicago. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$88 Cheap Flights from Louisville to Chicago in 2026

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

Prices are currently low for flights on this route. Typical prices usually range from $215 to $382. The lowest price recently found on this route was $174.

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Find the cheapest flights from Louisville to Chicago

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

12:00 pm - 9:13 pm

SDF

ORD

10h 13m

1 stop

8:16 pm - 2:38 pm

ORD

SDF

17h 22m

1 stop

$174Spirit Airlines

Sat, Mar 7 - Mon, Mar 9

11:13 am - 11:53 am

SDF

ORD

1h 40mnonstop

1:34 pm - 4:05 pm

ORD

SDF

1h 31mnonstop

$177American Airlines

Tue, Apr 7 - Wed, Apr 8

3:30 pm - 3:45 pm

SDF

MDW

1h 15mnonstop

6:20 pm - 8:35 pm

MDW

SDF

1h 15mnonstop

$177Southwest

Tue, Apr 7 - Wed, Apr 8

9:13 pm - 10:36 am

SDF

ORD

14h 23m

1 stop

1:27 pm - 2:38 pm

ORD

SDF

24h 11m

1 stop

$179Multiple Airlines

Mon, Mar 23 - Wed, Apr 15

1:35 pm - 8:20 pm

SDF

MDW

7h 45m

1 stop

6:20 pm - 8:35 pm

MDW

SDF

1h 15mnonstop

$187Southwest

Tue, Apr 7 - Wed, Apr 8

3:33 pm - 11:22 am

SDF

ORD

20h 49m

1 stop

5:15 am - 2:38 pm

ORD

SDF

8h 23m

1 stop

$187Spirit Airlines

Tue, Mar 3 - Tue, Mar 10

12:07 pm - 12:41 pm

SDF

ORD

1h 34mnonstop

8:50 pm - 11:20 pm

ORD

SDF

1h 30mnonstop

$191American Airlines

Tue, Mar 10 - Tue, Mar 10

9:07 am - 9:47 am

SDF

ORD

1h 40mnonstop

9:15 pm - 11:46 pm

ORD

SDF

1h 31mnonstop

$196United Airlines

Thu, Apr 9 - Tue, Apr 14

7:45 am - 1:17 pm

SDF

ORD

6h 32m

1 stop

5:59 pm - 11:57 pm

ORD

SDF

4h 58m

1 stop

$197Delta

Tue, Apr 7 - Tue, Apr 7

3:33 pm - 5:14 pm

SDF

ORD

26h 41m

1 stop

6:10 pm - 11:47 am

ORD

SDF

16h 37m

1 stop

$199Multiple Airlines

Thu, Mar 12 - Mon, Mar 16

United Airlines flights from Louisville to Chicago

Our best United Airlines deals on Louisville to Chicago flight tickets

United Airlines

Apr 9

SDF9:07 amLouisville Intl

1h 40m

ORD9:47 amChicago O'Hare Intl

Apr 14

ORD9:15 pmChicago O'Hare Intl

1h 31m

SDF11:46 pmLouisville Intl

$196

United Airlines

Feb 24

SDF9:00 amLouisville Intl

1h 44m

ORD9:44 amChicago O'Hare Intl

Feb 25

ORD2:53 pmChicago O'Hare Intl

1h 26m

SDF5:19 pmLouisville Intl

$231

United Airlines

May 19

SDF7:15 amLouisville Intl

1h 40m

ORD7:55 amChicago O'Hare Intl

May 21

ORD7:25 amChicago O'Hare Intl

1h 20m

SDF9:45 amLouisville Intl

$236

Spirit Airlines flights from Louisville to Chicago

Our best Spirit Airlines deals on Louisville to Chicago flight tickets

Spirit Airlines

Mar 7

SDF12:00 pmLouisville Intl

10h 13m

1 stop

ORD9:13 pmChicago O'Hare Intl

Mar 9

ORD8:16 pmChicago O'Hare Intl

17h 22m

1 stop

SDF2:38 pmLouisville Intl

$174

Spirit Airlines

Mar 3

SDF3:33 pmLouisville Intl

20h 49m

1 stop

ORD11:22 amChicago O'Hare Intl

Mar 10

ORD5:15 amChicago O'Hare Intl

8h 23m

1 stop

SDF2:38 pmLouisville Intl

$187

Spirit Airlines

Mar 3

SDF3:33 pmLouisville Intl

27h 45m

2 stops

ORD6:18 pmChicago O'Hare Intl

Mar 10

ORD5:15 amChicago O'Hare Intl

8h 23m

1 stop

SDF2:38 pmLouisville Intl

$202

Fly from

Fly to

Route

Depart

Return

Price

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Sat 3/7

12:00 pm-9:13 pm

1 stop10h 13m

Chicago O'Hare Intl

Mon 3/9

8:16 pm-2:38 pm

1 stop17h 22m

$174

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Tue 4/7

11:13 am-11:53 am

Nonstop1h 40m

Chicago O'Hare Intl

Wed 4/8

1:34 pm-4:05 pm

Nonstop1h 31m

$177

LouisvilleChicago

SDF - MDW

SDFMDW

Louisville Intl

Tue 4/7

3:30 pm-3:45 pm

Nonstop1h 15m

Chicago Midway

Wed 4/8

6:20 pm-8:35 pm

Nonstop1h 15m

$177

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Mon 3/23

9:13 pm-10:36 am

1 stop14h 23m

Chicago O'Hare Intl

Wed 4/15

1:27 pm-2:38 pm

1 stop24h 11m

$179

LouisvilleChicago

SDF - MDW

SDFMDW

Louisville Intl

Tue 4/7

1:35 pm-8:20 pm

1 stop7h 45m

Chicago Midway

Wed 4/8

6:20 pm-8:35 pm

Nonstop1h 15m

$187

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Tue 3/3

3:33 pm-11:22 am

1 stop20h 49m

Chicago O'Hare Intl

Tue 3/10

5:15 am-2:38 pm

1 stop8h 23m

$187

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Tue 3/10

12:07 pm-12:41 pm

Nonstop1h 34m

Chicago O'Hare Intl

Tue 3/10

8:50 pm-11:20 pm

Nonstop1h 30m

$191

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Thu 4/9

9:07 am-9:47 am

Nonstop1h 40m

Chicago O'Hare Intl

Tue 4/14

9:15 pm-11:46 pm

Nonstop1h 31m

$196

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Tue 4/7

7:45 am-1:17 pm

1 stop6h 32m

Chicago O'Hare Intl

Tue 4/7

5:59 pm-11:57 pm

1 stop4h 58m

$197

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Thu 3/12

3:33 pm-5:14 pm

1 stop26h 41m

Chicago O'Hare Intl

Mon 3/16

6:10 pm-11:47 am

1 stop16h 37m

$199

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 Chicago

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 Louisville and Chicago?

What is the cheapest month to fly to Chicago?

The month of November is, on average, the cheapest month to fly to Chicago from Louisville, with most prices found around $196. If you’re not able to fly to Chicago in November, then April is your next best option. Flight prices from Louisville to Chicago during April average around $209.

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

The cheapest day to depart on your flight to Chicago is on a Thursday when prices can be found for as low as $490. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Louisville to Chicago for around $721.

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

Our most recent data shows that the best time of day to fly to Chicago is in the morning. Flights from Louisville to Chicago during this time can be as low as $498. In contrast, the most expensive time of day to depart to Chicago is at noon when prices are around $877.

What is the cheapest Louisville Intl to Chicago flight route?

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

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

You are more likely to see cheaper flights to Chicago from Louisville when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago for around $292 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago from Louisville for as low as $152 on momondo.

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

There are 4 cabin classes available to choose from on Louisville Intl to Chicago 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 Chicago flights?

You could potentially save up to 9% on your flight if you consider stops on a Louisville to Chicago flight.

How have Louisville to Chicago flight prices changed over time?

As of February 2026, prices for Louisville to Chicago flights are approximately 80% more expensive when compared to flights at the same time last year.

When to book flights from Louisville to Chicago

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

Estimated round-trip price

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

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

Best Price Found	$196
Fastest flight time	1h 10m
Direct flights	Every day
Airports in Chicago	3 airports

The best one-way flight to Chicago from Louisville in the past 72 hours is $196. The best round-trip flight deal from Louisville to Chicago found on momondo in the last 72 hours is $349.

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

Direct flights go from Louisville to Chicago every day.

There are 3 airports in Chicago. From Louisville there are direct flights to Chicago O'Hare Intl (ORD), Chicago Midway (MDW).

Search flight deals

How far is Louisville Intl to Chicago by plane?
Chicago is 269.2 mi away from Louisville Intl. Typically, this will take 1h 10m by plane in normal conditions.
When did momondo last update prices for flights from Louisville Intl Airport to Chicago?
Prices for flights from Louisville Intl Airport to Chicago are updated daily.
How many operators does momondo search for flights from Louisville Intl Airport to Chicago?
The number of operators available for flights from Louisville Intl Airport to Chicago is 3 as of February 2026.
How old do you have to be to fly from Louisville Intl Airport to Chicago?
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 Chicago.
What documentation or ID do you need to fly to Chicago?
The travel and health documents required for your trip to Chicago can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Chicago. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Louisville to Chicago?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Louisville to Chicago is Embraer 175 (Enhanced Winglets) (16.38% of total bookings). The next most popular plane models are Embraer 175 (15.11%), Canadair (Bombardier) Regional Jet CRJ-550 (12.57%), and Boeing 737 MAX 8 (12.01%).
What is the most popular airline from Louisville to Chicago?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Louisville to Chicago is Southwest (43% of total bookings). The next most popular airlines are United Airlines (29%) and American Airlines (28%).

Best airlines flying from Louisville to Chicago

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

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $97	Free Cancellation	Rating 7.2 11,247 reviews	Search American Airlines flights
United Airlines	PriceFrom $97	Free Cancellation	Rating 7.4 9,245 reviews	Search United Airlines flights
Southwest	PriceFrom $97	Free Cancellation	Rating 8.0 4,280 reviews	Search Southwest flights

Southwest Flights From Louisville to Chicago
Across 7 Southwest flights from Louisville to Chicago this week, the average price was $262, with the best Southwest deals starting from $97 round-trip. 4,280 users have rated Southwest on momondo, with an average score of 8.0/10.
United Airlines Flights From Louisville to Chicago
$97 is the best United Airlines flight deal from Louisville to Chicago found on momondo over the last 72 hours. The average United Airlines ticket price found was closer to $271, however, with flight time and availability significantly affecting the price. United Airlines (7.4/10 from 9,245 user reviews) flies into Chicago from Louisville 24 times in an average week so prices can vary.

Merrillville

New Buffalo

Hammond

Benton Harbor

Saint Joseph

Portage

Lansing

Schererville

Valparaiso

Munster

Crown Point

Chesterton

Monticello

Porter

Griffith

Saint John

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Louisville to Chicago. Millions of users trust and use momondo every year so you are in good hands.

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

momondo does allow users to show only those flights to Chicago 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 Chicago?

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

Of course. momondo tracks the price of Louisville to Chicago flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Cheap flights from Louisville to Chicago from $88

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 Chicago departing on 3/7. 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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United Airlines flights from Louisville to Chicago

Our best United Airlines deals on Louisville to Chicago flight tickets

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Our best Spirit Airlines deals on Louisville to Chicago flight tickets

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How to get the cheapest flight ticket from Louisville to Chicago

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

What is the cheapest month to fly to Chicago?

The month of November is, on average, the cheapest month to fly to Chicago from Louisville, with most prices found around $196. If you’re not able to fly to Chicago in November, then April is your next best option. Flight prices from Louisville to Chicago during April average around $209.

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

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

Our most recent data shows that the best time of day to fly to Chicago is in the morning. Flights from Louisville to Chicago during this time can be as low as $498. In contrast, the most expensive time of day to depart to Chicago is at noon when prices are around $877.

What is the cheapest Louisville Intl to Chicago flight route?

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

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

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

There are 4 cabin classes available to choose from on Louisville Intl to Chicago 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 Chicago flights?

You could potentially save up to 9% on your flight if you consider stops on a Louisville to Chicago flight.

How have Louisville to Chicago flight prices changed over time?

As of February 2026, prices for Louisville to Chicago flights are approximately 80% more expensive when compared to flights at the same time last year.

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

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

What airlines fly to Chicago?

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

As of February 2026, there are 27 flights per day flying from Louisville to Chicago. The most common time of day flights depart is 8:00AM, with 38% of flights taking off at noon.

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

191 flights are operational weekly from Louisville to Chicago as of February 2026. The most popular departure day for this route is Fri, with 20% of flights per week taking off on this day.

When to book flights from Louisville to Chicago

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

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

Best Price Found

Fastest flight time

Direct flights

Airports in Chicago

How far is Louisville Intl to Chicago by plane?

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

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

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

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

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

What is the most popular airline from Louisville to Chicago?

Best airlines flying from Louisville to Chicago

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

Southwest Flights From Louisville to Chicago

United Airlines Flights From Louisville to Chicago

Traveling to a place near Chicago?

Why use momondo?

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

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

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

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

An easier way to manage your Chicago 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

Fly into one of these airports located in Chicago

Airports listed have a maximum distance of 78.5 mi from Chicago

Fly your favorite airline to Chicago

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Chicago

List of cabin classes available on flights landing in Chicago. Availability may vary depending on flight origin and airline.