To Chicago

Cheap Flights from Louisville to Chicago

Browse current best options from Louisville. Become a member to unlock all deals and get alerts when new deals appear.

Deals from

Louisville

RatePunk searches hundreds of travel sites at once for deals on flights to Chicago

Prices updated 24 days ago

486,190 searches this week

171 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated May 29, 2026.)

Today’s best flight deals from Louisville to Chicago

Explore current cheapest deals departing from Louisville to Chicago

Round trip

Sort by: Cheapest

August 10 - August 19

Cheapest

SDF - Chicago

$244

$204

Round trip

August 10 - August 20

SDF - Chicago

$233

$205

Round trip

August 10 - August 27

SDF - Chicago

$222

$210

Round trip

August 10 - August 23

SDF - Chicago

$226

$213

Round trip

August 17 - August 20

SDF - Chicago

$272

$215

Round trip

August 17 - August 19

Best

SDF - Chicago

$275

$215

Round trip

July 14 - July 21

Earliest

SDF - Chicago

$146

$243

Round trip

July 15 - July 22

SDF - Chicago

$236

$243

Round trip

October 6 - October 13

SDF - Chicago

$171

$243

Round trip

September 2 - September 7

SDF - Chicago

$144

$256

Round trip

Unlock all 500+ flight deals to Chicago and get alerts when great deals appear

Route Intelligence — 486,190 Searches this Week

Insights for flights from Louisville to Chicago

A typical journey from Louisville to Chicago takes about 3h 9m, including connections. This route covers a distance of 437 km, classifying it as a short-haul flight. Given the short distance, the journey time is primarily influenced by the number of connections.

For travelers seeking cheap flights from Louisville to Chicago, prices typically range from $231–$386, with a median of $327. Right now, current fares are above the typical level. However, new deals appear almost daily for this route, suggesting opportunities to find better prices.

The cheapest time to fly from Louisville to Chicago is often during April, with a median fare of $247. August also offers competitive prices, with a median of $254. Another relatively affordable month is December, where the median fare is $313.

When flying from Louisville to Chicago, 57.2% of recent fares are for direct flights. This means a meaningful share of itineraries are non-stop, while the rest connect at least once. For connecting itineraries, the typical number of connections is 3.

How much is a round trip from Louisville to Chicago

Regular price: $205 - $317

Prices are currently below the regular range for flights from Louisville to Chicago.

The regular price range for flights from Louisville to Chicago is $205-$317. The current lowest deal is $204 with Allegiant Air, for travel from Aug 10-Aug 19.

now $204

Low $205

High $317

The cheapest time to fly from Louisville to Chicago

The cheapest month to fly from SDF to CHI is April, with a median price of $247. The most expensive month is February, with a median price of $815. Prices are generally lower from April to December.

April

Cheapest

Flights from $247

February

Most Expensive

Flights from $815

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from Louisville to Chicago

United Airlines

Last-minute flights going from Louisville to Chicago

Tue, Jun 30

⌛ Last-Minute

SDF - Chicago

Louisville (SDF) - Chicago (ORD)

$170

$275

One-way

Tue, Jun 30

⌛ Last-Minute

SDF - Chicago

Louisville (SDF) - Chicago (ORD)

United Airlines

$158

$329

One-way

Wed, Jul 1

⌛ Last-Minute

SDF - Chicago

Louisville (SDF) - Chicago (ORD)

$268

$275

One-way

Fri, Jul 3

⌛ Last-Minute

SDF - Chicago

Louisville (SDF) - Chicago (ORD)

$257

$259

One-way

Fri, Jul 3

⌛ Last-Minute

SDF - Chicago

Louisville (SDF) - Chicago (ORD)

$256

$295

One-way

Tue, Jul 7

⌛ Last-Minute

SDF - Chicago

Louisville (SDF) - Chicago (ORD)

$252

$301

One-way

Biggest price drops on these dates for flights from Louisville to Chicago

2 nights

Aug 17 - Aug 19

$275 → $215

22%

3 nights

Aug 17 - Aug 20

$272 → $215

21%

9 nights

Aug 10 - Aug 19

$244 → $204

16%

10 nights

Aug 10 - Aug 20

$233 → $205

12%

Popular Airports to fly from Louisville to Chicago

Louisville - Chicago route insights

💸 Price insights

Recent fares are above the typical level

Recent fares from Louisville to Chicago are above the typical level, with a median price of $327.

📅 Best time to fly

April is historically the cheapest month to fly

Historically, April is the cheapest month to fly from Louisville to Chicago, with a median price of $247.

⏱️ Flight duration

Average flight time is 3h 9m

The average flight time for this route is 3 hours and 9 minutes, covering a distance of 437 km.

✈️ Airlines & availability

Direct flights are available

Direct flights are available on this route, representing 57.2% of deals.

🏆 Airline highlight

United Airlines offers direct flights

United Airlines is one of the airlines offering direct flights from Louisville to Chicago.

🎯 Booking tip

Deals are frequent for this route

Deals for flights from Louisville to Chicago are frequent, with over 1 deal per day.

Louisville main airports to depart from

Louisville International (SDF)

Cheapest

Louisville International Airport is a good option for flights from Louisville to Chicago.

📍 ~10 km from Louisville (reachable by car)

💸 Flights from ~$204

Chicago main airports to arrive at

O Hare International (ORD)

Cheapest

O'Hare International Airport is a major hub, offering the cheapest flights to Chicago from Louisville.

📍 ~23 km from Chicago city center (reachable by car or train)

💸 Flights from ~$204

Chicago Midway International (MDW)

Chicago Midway International Airport provides another convenient option for arriving in Chicago from Louisville.

📍 ~15 km from Chicago city center (reachable by car or train)

💸 Flights from ~$243

Chicago Rockford International (RFD)

Chicago Rockford International Airport is an alternative arrival airport for flights from Louisville to Chicago.

📍 ~120 km from Chicago city center (reachable by car)

💸 Flights from ~$234

Airports nearby Chicago used as alternative

General Mitchell International (MKE)

Milwaukee offers excellent proximity to Chicago with high-frequency flight options and direct rail access.

📍 ~135 km from destination city (reachable by car, train)

💸 Flights from ~$243

South Bend International (SBN)

South Bend is the closest alternative to Chicago, with direct commuter rail to downtown.

📍 ~120 km from destination city (reachable by car, train)

💸 Flights from ~$279

Gerald R. Ford International (GRR)

Cheapest

Grand Rapids is a major regional hub, offering a wide range of cabin classes for eastern Chicago travelers.

📍 ~250 km from destination city (reachable by car)

💸 Flights from ~$208

Dane County Regional (MSN)

Madison is a reliable regional airport with consistent service and less congestion than major hubs.

📍 ~200 km from destination city (reachable by car)

💸 Flights from ~$248

Fort Wayne International (FWA)

Fort Wayne provides stable regional service, useful for travelers in the southeastern Chicago suburbs.

📍 ~240 km from destination city (reachable by car)

💸 Flights from ~$309

Business & First Class Flight Deals to Chicago

43% AI deal score

$515

From SDF

Elite

Jul 02

Chicago, United States

43% AI deal score

$591

$543

Save $48

From SDF

Elite

Jul 06

Chicago, United States

43% AI deal score

$557

From SDF

Elite

Jun 18

Chicago, United States

43% AI deal score

$715

From SDF

Elite

Sep 11

Chicago, United States

43% AI deal score

Chicago, United States

31% AI deal score

$1,630

Frequently Asked Questions About Flights to Chicago

Historically, the optimal booking window for flights from Louisville to Chicago is typically 28-59 days before departure. Within this period, the average price for tickets was around $302. If you book closer to your travel date, such as 0-6 days out, the average price tends to increase significantly to approximately $467. Even booking 7-13 days in advance shows an average price of $352, indicating that planning ahead can lead to better savings.

Across the trailing quarter, a good price for a flight from Louisville to Chicago is considered to be $231 or less. The median price for this route historically stands at $327. Prices tend to increase beyond this, with 75% of prices being $386 or higher. Therefore, if you find a ticket at or below $231, it represents a strong value for this route.

Historically, April and August have been the cheapest months to fly from Louisville to Chicago. In April, the median price was $247, while in August, it was $254. December, on the other hand, was the most expensive month, with a median price of $313. The annual median price for this route across the trailing 270 days was $327, making April and August notably more affordable.

Related routes

Consider alternative routes from Louisville

Flights from Louisville to Amsterdam Flights from Louisville to Athens Flights from Louisville to Atlanta Flights from Louisville to Bangkok Flights from Louisville to Barcelona Flights from Louisville to Berlin Flights from Louisville to Boston Flights from Louisville to Copenhagen Flights from Louisville to Denver Flights from Louisville to Dubai Flights from Louisville to Dublin Flights from Louisville to Florence

Cheap Flights from Louisville to Chicago

Today’s best flight deals from Louisville to Chicago

Unlock all 500+ flight deals to Chicago and get alerts when great deals appear

Route Intelligence — 486,190 Searches this Week

Insights for flights from Louisville to Chicago

How much is a round trip from Louisville to Chicago

The cheapest time to fly from Louisville to Chicago

Direct flights from Louisville to Chicago

Last-minute flights going from Louisville to Chicago

Biggest price drops on these dates for flights from Louisville to Chicago

Popular Airports to fly from Louisville to Chicago

Louisville - Chicago route insights

Recent fares are above the typical level

April is historically the cheapest month to fly

Average flight time is 3h 9m

Direct flights are available

United Airlines offers direct flights

Deals are frequent for this route

Louisville main airports to depart from

Chicago main airports to arrive at

Airports nearby Chicago used as alternative

Business & First Class Flight Deals to Chicago

Best Elite deals to Chicago

Jul 01

Jul 02

Oct 22

Jul 01

Sep 02

Jul 07

Aug 13

Jun 30

Oct 26

Oct 07

Oct 06

Aug 01

Aug 14

Oct 08

Aug 16

Jul 14

Jul 06

Jul 06

Jul 15

Jul 01

Jul 24

Jul 17

Jul 16

Jul 08

Jul 31

Aug 06

Aug 07

Oct 07

Oct 08

Jun 16

Jul 17

Jul 02

Jul 06

Jun 18

Sep 11

Nov 19

Sep 21

Jun 16

Jul 26

Jul 02

Jun 22

Frequently Asked Questions About Flights to Chicago

When should I buy Louisville to Chicago tickets?

When should I buy Louisville to Chicago tickets?

How do I know if a Louisville to Chicago flight is a good deal?

How do I know if a Louisville to Chicago flight is a good deal?

What's the cheapest month to fly from Louisville to Chicago?

What's the cheapest month to fly from Louisville to Chicago?

What percentage of Louisville to Chicago flights are direct?

What percentage of Louisville to Chicago flights are direct?

How many hours is the flight from Louisville to Chicago?

How many hours is the flight from Louisville to Chicago?

How often do flight deals from Louisville to Chicago come up?

How often do flight deals from Louisville to Chicago come up?

Related routes

Consider alternative routes from Louisville