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Cheap flights from Kentucky to Illinois from $48

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 11/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Kentucky to Illinois

Cheap round-trip flights

Multiple Airlines Logo
2:01 pm - 3:49 pmBNA-ORD
1h 48mnonstop
Multiple Airlines Logo
6:06 pm - 7:54 pmORD-BNA
1h 48mnonstop
$78Multiple Airlines
Find Deal
Fri, Oct 31 - Sun, Nov 2
Multiple Airlines Logo
9:02 pm - 10:49 pmBNA-ORD
1h 47mnonstop
Multiple Airlines Logo
12:41 pm - 2:17 pmORD-BNA
1h 36mnonstop
$79Multiple Airlines
Find Deal
Thu, Oct 23 - Sun, Oct 26
Spirit Airlines Logo
9:02 pm - 10:49 pmBNA-ORD
1h 47mnonstop
Spirit Airlines Logo
1:26 pm - 3:10 pmORD-BNA
1h 44mnonstop
$80Spirit Airlines
Find Deal
Thu, Oct 9 - Sun, Oct 12
Spirit Airlines Logo
9:02 pm - 10:49 pmBNA-ORD
1h 47mnonstop
Spirit Airlines Logo
4:44 pm - 6:24 pmORD-BNA
1h 40mnonstop
$90Spirit Airlines
Find Deal
Sun, Oct 5 - Mon, Oct 13
United Airlines Logo
12:10 pm - 2:00 pmBNA-ORD
1h 50mnonstop
United Airlines Logo
12:45 pm - 2:28 pmORD-BNA
1h 43mnonstop
$97United Airlines
Find Deal
Tue, Nov 11 - Tue, Nov 18
Southwest Logo
8:55 pm - 10:35 pmBNA-MDW
1h 40mnonstop
Southwest Logo
6:15 pm - 7:50 pmMDW-BNA
1h 35mnonstop
$97Southwest
Find Deal
Tue, Nov 11 - Tue, Nov 18
Southwest Logo
1:10 pm - 4:35 pmBNA-MDW
3h 25m1 stop
Southwest Logo
8:50 am - 10:20 amMDW-BNA
1h 30mnonstop
$103Southwest
Find Deal
Wed, Nov 12 - Tue, Nov 18
American Airlines Logo
5:35 am - 7:30 amBNA-ORD
1h 55mnonstop
American Airlines Logo
6:52 am - 8:24 amORD-BNA
1h 32mnonstop
$127American Airlines
Find Deal
Fri, Oct 24 - Tue, Oct 28
American Airlines Logo
5:35 am - 7:30 amBNA-ORD
1h 55mnonstop
American Airlines Logo
11:20 am - 1:07 pmORD-BNA
1h 47mnonstop
$128American Airlines
Find Deal
Sun, Oct 26 - Wed, Oct 29
United Airlines Logo
7:20 pm - 8:09 pmSDF-ORD
1h 49mnonstop
United Airlines Logo
7:50 pm - 10:30 pmORD-SDF
1h 40mnonstop
$143United Airlines
Find Deal
Tue, Oct 14 - Tue, Oct 21

American Airlines flights from Kentucky to Illinois

Our best American Airlines deals on Kentucky to Illinois flight tickets
American Airlines
Oct 24
BNA5:35 amNashville Intl
1h 55m
ORD7:30 amChicago O'Hare Intl
Oct 28
ORD6:52 amChicago O'Hare Intl
1h 32m
BNA8:24 amNashville Intl
$127
Find similar
American Airlines
Oct 26
BNA5:35 amNashville Intl
1h 55m
ORD7:30 amChicago O'Hare Intl
Oct 29
ORD11:20 amChicago O'Hare Intl
1h 47m
BNA1:07 pmNashville Intl
$128
Find similar
American Airlines
Oct 14
SDF6:45 amLouisville Intl
1h 33m
ORD7:18 amChicago O'Hare Intl
Oct 17
ORD8:21 pmChicago O'Hare Intl
1h 35m
SDF10:56 pmLouisville Intl
$134
Find similar

Spirit Airlines flights from Kentucky to Illinois

Our best Spirit Airlines deals on Kentucky to Illinois flight tickets
Spirit Airlines
Oct 9
BNA9:02 pmNashville Intl
1h 47m
ORD10:49 pmChicago O'Hare Intl
Oct 12
ORD1:26 pmChicago O'Hare Intl
1h 44m
BNA3:10 pmNashville Intl
$80
Find similar
Spirit Airlines
Oct 5
BNA9:02 pmNashville Intl
1h 47m
ORD10:49 pmChicago O'Hare Intl
Oct 13
ORD4:44 pmChicago O'Hare Intl
1h 40m
BNA6:24 pmNashville Intl
$90
Find similar
Spirit Airlines
Oct 10
BNA2:01 pmNashville Intl
1h 48m
ORD3:49 pmChicago O'Hare Intl
Oct 12
ORD1:26 pmChicago O'Hare Intl
1h 44m
BNA3:10 pmNashville Intl
$100
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Kentucky to Illinois that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated September 17, 2025.
Use the filters below to find and compare flights from Kentucky to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

NashvilleChicago

BNA - ORD

BNAORD

Nashville Intl

Fri 10/31

2:01 pm-3:49 pm

Nonstop1h 48m

Chicago O'Hare Intl

Sun 11/2

6:06 pm-7:54 pm

Nonstop1h 48m

$78

NashvilleChicago

BNA - ORD

BNAORD

Nashville Intl

Thu 10/23

9:02 pm-10:49 pm

Nonstop1h 47m

Chicago O'Hare Intl

Sun 10/26

12:41 pm-2:17 pm

Nonstop1h 36m

$79

NashvilleChicago

BNA - ORD

BNAORD

Nashville Intl

Thu 10/9

9:02 pm-10:49 pm

Nonstop1h 47m

Chicago O'Hare Intl

Sun 10/12

1:26 pm-3:10 pm

Nonstop1h 44m

$80

NashvilleChicago

BNA - ORD

BNAORD

Nashville Intl

Sun 10/5

9:02 pm-10:49 pm

Nonstop1h 47m

Chicago O'Hare Intl

Mon 10/13

4:44 pm-6:24 pm

Nonstop1h 40m

$90

NashvilleChicago

BNA - ORD

BNAORD

Nashville Intl

Tue 11/11

12:10 pm-2:00 pm

Nonstop1h 50m

Chicago O'Hare Intl

Tue 11/18

12:45 pm-2:28 pm

Nonstop1h 43m

$97

NashvilleChicago

BNA - MDW

BNAMDW

Nashville Intl

Tue 11/11

8:55 pm-10:35 pm

Nonstop1h 40m

Chicago Midway

Tue 11/18

6:15 pm-7:50 pm

Nonstop1h 35m

$97

NashvilleChicago

BNA - MDW

BNAMDW

Nashville Intl

Wed 11/12

1:10 pm-4:35 pm

1 stop3h 25m

Chicago Midway

Tue 11/18

8:50 am-10:20 am

Nonstop1h 30m

$103

NashvilleChicago

BNA - ORD

BNAORD

Nashville Intl

Fri 10/24

5:35 am-7:30 am

Nonstop1h 55m

Chicago O'Hare Intl

Tue 10/28

6:52 am-8:24 am

Nonstop1h 32m

$127

NashvilleChicago

BNA - ORD

BNAORD

Nashville Intl

Sun 10/26

5:35 am-7:30 am

Nonstop1h 55m

Chicago O'Hare Intl

Wed 10/29

11:20 am-1:07 pm

Nonstop1h 47m

$128

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Tue 10/14

7:20 pm-8:09 pm

Nonstop1h 49m

Chicago O'Hare Intl

Tue 10/21

7:50 pm-10:30 pm

Nonstop1h 40m

$143

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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?

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 $239.

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 $495. Flights from Kentucky to Illinois on a Sunday will generally be more expensive and average around $721. 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 $528. Flights in the afternoon are often more expensive with an average ticket price of $850.

What is the cheapest Kentucky to Illinois flight route?

Fly from Louisville Intl to Chicago Midway 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 $288 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 $196 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

$95

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 $95. The best round-trip flight deal from Kentucky to Illinois found on momondo in the last 72 hours is $138.
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 Midway (MDW), Lambert-St Louis (STL)
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?

  • 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?

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 AirlinesPriceFrom $97Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $97Free CancellationRating
8.0
4,242 reviews
Search Southwest flights
ContourPriceFrom $113Free CancellationRating
7.2
36 reviews
Search Contour flights
United AirlinesPriceFrom $123Free CancellationRating
7.4
8,926 reviews
Search United Airlines 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.

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