What percentage of Louisville to Chicago flights are direct?

In the trailing 90 days, approximately 76% of flights from Louisville to Chicago have been direct. For those flights that include stopovers, travelers typically experience a median of 3 stopovers. This indicates that a significant majority of available options for this route offer a direct travel experience.

How many hours is the flight from Louisville to Chicago?

The typical direct flight from Louisville to Chicago has a median duration of 1 hour and 40 minutes. This route covers an air distance of 437 kilometers. Flights with one stopover, however, historically take considerably longer, with a median duration of 5 hours and 25 minutes. Travelers can generally expect a relatively quick journey when flying direct.

How often do cheap flights from Louisville to Chicago come up?

Historically, cheap flights from Louisville to Chicago come up frequently. This route is classified as having frequent deal availability across the trailing quarter. Travelers can typically find opportunities for good value flights on this route with regularity. This assessment is based on observations over a 30-day window.

Flights From Louisville

To Chicago

Cheap Flights from Louisville to Chicago

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Deals from

Louisville

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

Prices updated 6 days ago

454 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated Aug 25, 2026.)

Today’s best flight deals from Louisville to Chicago

Explore current cheapest deals departing from Louisville to Chicago

2026-09-12 – 2026-09-14
SDF - Chicago
39% AI deal score
$147
$217
Round trip
2026-09-15 – 2026-09-21
SDF - Chicago
41% AI deal score
$138
$217
Round trip
2026-09-23 – 2026-09-30
SDF - Chicago
41% AI deal score
$137
$217
Round trip
2026-10-03 – 2026-10-06
SDF - Chicago
41% AI deal score
$144
$217
Round trip
2026-10-01 – 2026-10-05
SDF - Chicago
41% AI deal score
$143
$217
Round trip
2026-10-15 – 2026-10-26
SDF - Chicago
40% AI deal score
$122
$217
Round trip
2026-10-15 – 2026-10-22
SDF - Chicago
41% AI deal score
$137
$217
Round trip
2026-10-17 – 2026-10-24
SDF - Chicago
41% AI deal score
$138
$217
Round trip
2026-10-12 – 2026-10-19
SDF - Chicago
41% AI deal score
$137
$217
Round trip
2026-10-13 – 2026-10-20
SDF - Chicago
41% AI deal score
$137
$217
Round trip

Louisville to Chicago: Overview

Insights for flights from Louisville to Chicago

A typical journey from Louisville to Chicago takes about 1h 40m. Given that almost all itineraries are non-stop, this duration primarily reflects direct flight times. For the few itineraries that do include connections, the median journey time extends significantly to 25h 37m, with most connecting flights involving 3 stopovers.

For travelers seeking cheap flights from Louisville to Chicago, the fares right now are below the typical level. Prices for this route typically range from $293–$468, with a median of $338. Currently, new deals appear almost daily, indicating frequent opportunities to find favorable prices.

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

The distance between Louisville and Chicago is 437 km, classifying this as a short-haul route. This short distance contributes to the prevalence of direct flights and the relatively brief journey times.

How much is a round trip from Louisville to Chicago

Regular price: $115 - $294

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

The regular price range for flights from Louisville to Chicago is between $115 and $294. The current lowest deal is $214 with American Airlines for travel from Sep 17 to Sep 21.

now $214

Low $115

High $294

The cheapest time to fly from Louisville to Chicago

The cheapest month to fly from SDF to CHI is August, with a median price of $293. The most expensive month is February, with a median price of $671. Prices are generally lower from April to December.

August

Cheapest

Flights from $293

February

Most Expensive

Flights from $671

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from Louisville to Chicago

Southwest Airlines

United Airlines

Last-minute flights going from Louisville to Chicago

Sat, Sep 5

⌛ Last-Minute

SDF - Chicago

Louisville (SDF) - Chicago (ORD)

$418

$423

One-way

Wed, Sep 16

⌛ Last-Minute

SDF - Chicago

Louisville (SDF) - Chicago (ORD)

United Airlines

$153

$216

One-way

Thu, Sep 17

⌛ Last-Minute

SDF - Chicago

Louisville (SDF) - Chicago (ORD)

American Airlines

$150

$216

One-way

Fri, Sep 18

⌛ Last-Minute

SDF - Chicago

Louisville (SDF) - Chicago (MDW)

Southwest Airlines

$148

$290

One-way

Sat, Sep 19

⌛ Last-Minute

SDF - Chicago

Louisville (SDF) - Chicago (ORD)

$150

$291

One-way

Sat, Sep 19

⌛ Last-Minute

SDF - Chicago

Louisville (SDF) - Chicago (ORD)

$148

$291

One-way

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

2 nights

Dec 24 - Dec 26

$463 → $377

19%

2 nights

Sep 24 - Sep 26

$293 → $237

19%

3 nights

Oct 22 - Oct 25

$289 → $281

10 nights

Oct 29 - Nov 8

$238 → $235

Popular Airports to fly from Louisville to Chicago

Louisville - Chicago route insights

💸 Price insights

Recent fares are below the typical level

Recent fares from SDF to CHI are below the typical level, with a median price of $338.

📅 Best time to fly

April and August offer the lowest median prices

Historically, April ($247) and August ($254) have offered the lowest median prices.

⏱️ Flight duration

Direct flights average 1h 40m

Direct flights from Louisville to Chicago typically take 1h 40m, while connecting flights average 25h 37m.

✈️ Airlines & availability

76% of recent flights are direct

76% of recent flights on this route are direct, with frequent deals available.

🏆 Airline highlight

Southwest Airlines and United Airlines offer direct flights

Southwest Airlines and United Airlines both offer direct flight options for this route.

🎯 Booking tip

Consider booking for September 17-21 for a $214 deal

A recent deal for $214 was found on American Airlines for September 17-21.

Louisville main airports to depart from

Louisville International (SDF)

Cheapest

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

📍 ~9 km from Louisville (reachable by car)

💸 Flights from ~$176

Chicago main airports to arrive at

O Hare International (ORD)

Cheapest

O'Hare International Airport is a major hub for flights to Chicago, offering a wide range of connections.

📍 ~25 km from Chicago city center (reachable by car, train).

💸 Flights from ~$176

Airports nearby Chicago used as alternative

General Mitchell International (MKE)

Cheapest

General Mitchell International offers significant carrier presence and direct flight options for Chicago travelers.

📍 ~135 km from Chicago (reachable by train or car)

💸 Flights from ~$245

Business & First Class Flight Deals to Chicago

Chicago, United States

48% AI deal score

$1,748

$1,135

Save $613

From SDF

Elite

Oct 16

Chicago, United States

47% AI deal score

$463

$426

Save $37

United Airlines

Business Class

From SDF

Elite

Feb 17

Chicago, United States

43% AI deal score

$417

United Airlines

Business Class

From SDF

Elite

Feb 11

Chicago, United States

43% AI deal score

$417

United Airlines

Business Class

Frequently Asked Questions About Flights to Chicago

Historically, the optimal booking window for flights from Louisville to Chicago is typically 28-59 days prior to departure. During this period, the average price for a ticket has been observed at around $302. In contrast, purchasing tickets 0-6 days before departure typically sees prices rise to an average of $467. Even booking more than 60 days out tends to be more expensive, with an average price of $355.

Across the trailing quarter, a flight from Louisville to Chicago is considered a good deal if it is priced at or below $293. The median price for this route over the same period was $338. Prices above $468 typically indicate a more expensive fare. These thresholds are based on pricing trends observed over a 90-day window.

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. The annual median price for this route is $338, with December typically being the most expensive month, showing a median price of $313. These trends are based on data collected over a 270-day period.

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Louisville to Chicago: Overview

Insights for flights from Louisville to Chicago

How much is a round trip from Louisville to Chicago

Regular price: $115 - $294

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

The regular price range for flights from Louisville to Chicago is between $115 and $294. The current lowest deal is $214 with American Airlines for travel from Sep 17 to Sep 21.

now $214

Low $115

High $294

The cheapest time to fly from Louisville to Chicago

The cheapest month to fly from SDF to CHI is August, with a median price of $293. The most expensive month is February, with a median price of $671. Prices are generally lower from April to December.

August

Cheapest

Flights from $293

February

Most Expensive

Flights from $671

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from Louisville to Chicago

Southwest Airlines

United Airlines

Last-minute flights going from Louisville to Chicago

Sat, Sep 5

⌛ Last-Minute

SDF - Chicago

Louisville (SDF) - Chicago (ORD)

$418

$423

One-way

Wed, Sep 16

⌛ Last-Minute

SDF - Chicago

Louisville (SDF) - Chicago (ORD)

United Airlines

$153

$216

One-way

Thu, Sep 17

⌛ Last-Minute

SDF - Chicago

Louisville (SDF) - Chicago (ORD)

American Airlines

$150

$216

One-way

Fri, Sep 18

⌛ Last-Minute

SDF - Chicago

Louisville (SDF) - Chicago (MDW)

Southwest Airlines

$148

$290

One-way

Sat, Sep 19

⌛ Last-Minute

SDF - Chicago

Louisville (SDF) - Chicago (ORD)

$150

$291

One-way

Sat, Sep 19

⌛ Last-Minute

SDF - Chicago

Louisville (SDF) - Chicago (ORD)

$148

$291

One-way

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

2 nights

Dec 24 - Dec 26

$463 → $377

19%

2 nights

Sep 24 - Sep 26

$293 → $237

19%

3 nights

Oct 22 - Oct 25

$289 → $281

10 nights

Oct 29 - Nov 8

$238 → $235

Popular Airports to fly from Louisville to Chicago