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

1,154 flights are operational weekly from Kentucky to Illinois as of August 2025. The most popular departure day for this route is Fri, with 21% of flights per week taking off on this day.

How long is the flight from Kentucky to Illinois?

The flight from Kentucky to Illinois depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Lexington (a popular airport in Kentucky) to Chicago O'Hare Intl Airport (the most popular airport in Illinois), then the flight time is 1h 33m on average. If you fly from Louisville (another popular airport in Kentucky) to Chicago O'Hare Intl Airport, then the average flight time is 1h 36m.

What is the cheapest airline that flies from Kentucky to Illinois?

Spirit Airlines, Frontier, and United Airlines are the most popular carriers operating from Kentucky to Illinois

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

As of August 2025, 164 flights take off from Kentucky and land in Illinois each day. The most common flight departure time for this route is 2:00PM, with 43% of daily flights taking off at noon.

What airlines fly to Illinois?

American Airlines, United Airlines and Southwest are the top three most popular airlines that fly to Illinois from Kentucky according to our data. American Airlines is the first choice among our users, with 46% 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 Kentucky to Illinois?

Prices for flights from Kentucky to Illinois are refreshed on a daily basis.

How many operators does momondo search for flights from Kentucky to Illinois?

As of August 2025, there are 8 operators available to choose from for flights from Kentucky to Illinois.

How old do you have to be to fly from Kentucky to Illinois?

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 Kentucky to Illinois.

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

The required travel and health documents for your Illinois trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Illinois. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$33 Cheap Flights from Kentucky to Illinois in 2025

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Find the cheapest flights from Kentucky to Illinois

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

6:24 pm - 7:00 pmTYS-MDW

1h 36mnonstop

7:50 pm - 10:21 pmMDW-TYS

1h 31mnonstop

$58Allegiant Air

Find Deal

Fri, Sep 5 - Mon, Sep 8

3:25 pm - 5:25 pmBNA-ORD

2h 00mnonstop

12:05 pm - 1:35 pmORD-BNA

1h 30mnonstop

$59Spirit Airlines

Find Deal

Fri, Oct 17 - Sun, Oct 19

3:21 pm - 5:26 pmBNA-ORD

2h 05mnonstop

12:53 pm - 2:36 pmORD-BNA

1h 43mnonstop

$77Frontier

Find Deal

Mon, Sep 8 - Thu, Sep 11

9:54 pm - 11:55 pmBNA-ORD

2h 01mnonstop

7:18 pm - 9:09 pmORD-BNA

1h 51mnonstop

$78Frontier

Find Deal

Thu, Aug 21 - Mon, Aug 25

6:44 am - 7:30 amSDF-ORD

1h 46mnonstop

4:55 pm - 7:24 pmORD-SDF

1h 29mnonstop

$97American Airlines

Find Deal

Tue, Sep 2 - Thu, Sep 4

9:15 am - 11:01 amBNA-ORD

1h 46mnonstop

6:40 pm - 8:17 pmORD-BNA

1h 37mnonstop

$97American Airlines

Find Deal

Sat, Sep 6 - Mon, Sep 8

6:35 am - 6:50 amSDF-MDW

1h 15mnonstop

8:35 pm - 10:50 pmMDW-SDF

1h 15mnonstop

$97Southwest

Find Deal

Sat, Aug 30 - Mon, Sep 8

8:20 am - 10:00 amBNA-MDW

1h 40mnonstop

7:55 am - 9:25 amMDW-BNA

1h 30mnonstop

$97Southwest

Find Deal

Thu, Aug 21 - Mon, Aug 25

7:20 am - 7:58 amSDF-ORD

1h 38mnonstop

7:26 am - 10:02 amORD-SDF

1h 36mnonstop

$111United Airlines

Find Deal

Wed, Sep 17 - Wed, Sep 24

8:45 am - 9:23 amSDF-ORD

1h 38mnonstop

7:25 am - 10:01 amORD-SDF

1h 36mnonstop

$117United Airlines

Find Deal

Mon, Oct 13 - Thu, Oct 16

United Airlines flights from Kentucky to Illinois

Our best United Airlines deals on Kentucky to Illinois flight tickets

United Airlines

Sep 17

SDF7:20 amLouisville Intl

1h 38m

ORD7:58 amChicago O'Hare Intl

Sep 24

ORD7:26 amChicago O'Hare Intl

1h 36m

SDF10:02 amLouisville Intl

$111

Find similar

United Airlines

Oct 13

SDF8:45 amLouisville Intl

1h 38m

ORD9:23 amChicago O'Hare Intl

Oct 16

ORD7:25 amChicago O'Hare Intl

1h 36m

SDF10:01 amLouisville Intl

$117

Find similar

United Airlines

Aug 23

SDF9:05 amLouisville Intl

1h 38m

ORD9:43 amChicago O'Hare Intl

Aug 23

ORD5:55 pmChicago O'Hare Intl

1h 33m

SDF8:28 pmLouisville Intl

$157

Find similar

Spirit Airlines flights from Kentucky to Illinois

Our best Spirit Airlines deals on Kentucky to Illinois flight tickets

Spirit Airlines

Oct 17

BNA3:25 pmNashville Intl

2h 00m

ORD5:25 pmChicago O'Hare Intl

Oct 19

ORD12:05 pmChicago O'Hare Intl

1h 30m

BNA1:35 pmNashville Intl

$59

Find similar

Spirit Airlines

Nov 7

BNA6:46 pmNashville Intl

1h 45m

ORD8:31 pmChicago O'Hare Intl

Nov 10

ORD4:01 pmChicago O'Hare Intl

1h 40m

BNA5:41 pmNashville Intl

$68

Find similar

Spirit Airlines

Oct 17

BNA3:25 pmNashville Intl

2h 00m

ORD5:25 pmChicago O'Hare Intl

Oct 19

ORD12:05 pmChicago O'Hare Intl

1h 30m

BNA1:35 pmNashville Intl

$69

Find similar

Fly from

Fly to

Route

Depart

Return

Price

KnoxvilleChicago

TYS - MDW

TYSMDW

Knoxville McGhee Tyson

Fri 9/5

6:24 pm-7:00 pm

Nonstop1h 36m

Chicago Midway

Mon 9/8

7:50 pm-10:21 pm

Nonstop1h 31m

$58

NashvilleChicago

BNA - ORD

BNAORD

Nashville Intl

Fri 10/17

3:25 pm-5:25 pm

Nonstop2h 00m

Chicago O'Hare Intl

Sun 10/19

12:05 pm-1:35 pm

Nonstop1h 30m

$59

NashvilleChicago

BNA - ORD

BNAORD

Nashville Intl

Mon 9/8

3:21 pm-5:26 pm

Nonstop2h 05m

Chicago O'Hare Intl

Thu 9/11

12:53 pm-2:36 pm

Nonstop1h 43m

$77

NashvilleChicago

BNA - ORD

BNAORD

Nashville Intl

Thu 8/21

9:54 pm-11:55 pm

Nonstop2h 01m

Chicago O'Hare Intl

Mon 8/25

7:18 pm-9:09 pm

Nonstop1h 51m

$78

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Tue 9/2

6:44 am-7:30 am

Nonstop1h 46m

Chicago O'Hare Intl

Thu 9/4

4:55 pm-7:24 pm

Nonstop1h 29m

$97

NashvilleChicago

BNA - ORD

BNAORD

Nashville Intl

Sat 9/6

9:15 am-11:01 am

Nonstop1h 46m

Chicago O'Hare Intl

Mon 9/8

6:40 pm-8:17 pm

Nonstop1h 37m

$97

LouisvilleChicago

SDF - MDW

SDFMDW

Louisville Intl

Sat 8/30

6:35 am-6:50 am

Nonstop1h 15m

Chicago Midway

Mon 9/8

8:35 pm-10:50 pm

Nonstop1h 15m

$97

NashvilleChicago

BNA - MDW

BNAMDW

Nashville Intl

Thu 8/21

8:20 am-10:00 am

Nonstop1h 40m

Chicago Midway

Mon 8/25

7:55 am-9:25 am

Nonstop1h 30m

$97

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Wed 9/17

7:20 am-7:58 am

Nonstop1h 38m

Chicago O'Hare Intl

Wed 9/24

7:26 am-10:02 am

Nonstop1h 36m

$111

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Mon 10/13

8:45 am-9:23 am

Nonstop1h 38m

Chicago O'Hare Intl

Thu 10/16

7:25 am-10:01 am

Nonstop1h 36m

$117

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 Kentucky 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 Kentucky is in April. Flight prices, which tend to average around $207, 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 April, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $232.

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

The cheapest day to depart from Kentucky to Illinois is on a Thursday when prices can be found for as low as $486. Flights from Kentucky to Illinois on a Sunday will generally be more expensive and average around $711. 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 Kentucky to Illinois during this time can be as low as $522. Flights in the afternoon are often more expensive with an average ticket price of $867.

What is the cheapest Kentucky to Illinois flight route?

Fly from Owensboro Daviess County to Chicago O'Hare Intl for the best Kentucky - 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 Kentucky when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $281 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Kentucky for as low as $168 on momondo.

What cabin class options are available on Kentucky to Illinois flights?

There are 4 cabin classes available to choose from on Kentucky 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 Kentucky to Illinois flights?

No. A direct flight is the cheapest option for a flight between Kentucky to Illinois.

Cheap Kentucky to Illinois flight deals and tips

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

Best Price Found	$33
Fastest flight time	1h 05m
Direct flights	Every day
Airports in Illinois	2 airports

The best one-way flight to Illinois from Kentucky in the past 72 hours is $33. The best round-trip flight deal from Kentucky to Illinois found on momondo in the last 72 hours is $58.

The fastest flight from Kentucky to Illinois takes 1h 05m

Direct flights go from Kentucky to Illinois every day.

There are 2 airports near Illinois: Chicago O'Hare Intl (ORD), Chicago Midway (MDW)

Search flight deals

When did momondo last update prices for flights from Kentucky to Illinois?
Prices for flights from Kentucky to Illinois are refreshed on a daily basis.
How many operators does momondo search for flights from Kentucky to Illinois?
As of August 2025, there are 8 operators available to choose from for flights from Kentucky to Illinois.
How old do you have to be to fly from Kentucky to Illinois?
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 Kentucky to Illinois.
What documentation or ID do you need to fly to Illinois?
The required travel and health documents for your Illinois trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Illinois. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Kentucky to Illinois?
momondo data reveals that the most frequently booked plane model on the route from Kentucky to Illinois is Embraer 175 (Enhanced Winglets), representing 18.46% of all bookings. The subsequent popular models are Canadair (Bombardier) Regional Jet CRJ-550 at 14.80%, Embraer 175 at 11.52%, and Embraer 170 at 10.41%.

Best airlines flying from Kentucky to Illinois

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

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $97	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Southwest	PriceFrom $97	Free Cancellation	Rating 8.0 4,246 reviews	Search Southwest flights
United Airlines	PriceFrom $106	Free Cancellation	Rating 7.4 8,904 reviews	Search United Airlines flights
Contour	PriceFrom $113	Free Cancellation	Rating 7.1 32 reviews	Search Contour flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Kentucky to Illinois for you.

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

Flights from Kentucky to Illinois with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Kentucky to Illinois.

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

Yes. momondo can track prices for Kentucky to Illinois flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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.

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Find better results for your trip to Illinois

Popular cities in Illinois

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Cheap flights from Kentucky to Illinois from $33

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Kentucky to Illinois departing on 10/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

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Find the cheapest flights from Kentucky to Illinois

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

United Airlines flights from Kentucky to Illinois

Our best United Airlines deals on Kentucky to Illinois flight tickets

Spirit Airlines flights from Kentucky to Illinois

Our best Spirit Airlines deals on Kentucky to Illinois flight tickets

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Use the filters below to find and compare flights from Kentucky to Illinois that are best for you.

See travel insights to Illinois from

How to get the cheapest flight ticket from Kentucky 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

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?

Our most recent data shows that the best time of day to fly to Illinois is in the morning. Flights from Kentucky to Illinois during this time can be as low as $522. Flights in the afternoon are often more expensive with an average ticket price of $867.

What is the cheapest Kentucky to Illinois flight route?

Fly from Owensboro Daviess County to Chicago O'Hare Intl for the best Kentucky - Illinois flight prices

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

What cabin class options are available on Kentucky to Illinois flights?

There are 4 cabin classes available to choose from on Kentucky 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 Kentucky to Illinois flights?

No. A direct flight is the cheapest option for a flight between Kentucky to Illinois.

What is the cheapest airline that flies from Kentucky to Illinois?

Spirit Airlines, Frontier, and United Airlines are the most popular carriers operating from Kentucky to Illinois

What airlines fly to Illinois?

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

As of August 2025, 164 flights take off from Kentucky and land in Illinois each day. The most common flight departure time for this route is 2:00PM, with 43% of daily flights taking off at noon.

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

1,154 flights are operational weekly from Kentucky to Illinois as of August 2025. The most popular departure day for this route is Fri, with 21% of flights per week taking off on this day.

How long is the flight from Kentucky to Illinois?

Cheap Kentucky to Illinois flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Illinois

When did momondo last update prices for flights from Kentucky to Illinois?

How many operators does momondo search for flights from Kentucky to Illinois?

How old do you have to be to fly from Kentucky to Illinois?

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

What is the most popular plane model from Kentucky to Illinois?

Best airlines flying from Kentucky to Illinois

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

Why use momondo?

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

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

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

I’m not ready to book a flight from Kentucky 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