$49+ Cheap flights from Illinois to Kentucky
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/11. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Illinois to Kentucky with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Illinois to Kentucky
Keep the following information in mind while searching for Illinois to Kentucky flight deals. Data was last updated June 12, 2025.
Round-trip from | $97 (United Airlines) |
|---|---|
One-way from | $49 (United Airlines) |
Popular in | February |
Cheapest in | August |
Average price | $366 |
Good round-trip deal | $199 or less |
Good one-way deal | $73 or less |
Find flight deals from Illinois to Kentucky
Cheapest flights from Illinois to KentuckyExplore the most affordable flight options available from Illinois to Kentucky. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.
Explore the most affordable flight options available from Illinois to Kentucky. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.
This United Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Southwest deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This SmartFares deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Southwest deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Southwest deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This American Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Frontier deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Southwest deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This United Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Priceline deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Cheapflightsfares deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Southwest deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Cheapflights Fare Finder
Customize your flight search to find flights from Illinois to Kentucky 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, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
Use the filters below to find and compare flights from Illinois to Kentucky that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
ChicagoLouisville
ORD - SDF
ORDSDF
Chicago O'Hare Intl
Thu 8/7
7:25 am-9:57 am
Nonstop1h 32m
Louisville Intl
Tue 8/12
6:08 pm-6:50 pm
Nonstop1h 42m
ChicagoLouisville
MDW - SDF
MDWSDF
Chicago Midway
Tue 8/5
10:05 am-12:25 pm
Nonstop1h 20m
Louisville Intl
Tue 8/5
7:10 pm-7:30 pm
Nonstop1h 20m
ChicagoNashville
ORD - BNA
ORDBNA
Chicago O'Hare Intl
Fri 8/1
4:37 pm-6:06 pm
Nonstop1h 29m
Nashville Intl
Mon 8/4
7:27 pm-9:30 pm
Nonstop2h 03m
ChicagoNashville
MDW - BNA
MDWBNA
Chicago Midway
Thu 8/7
9:45 pm-11:10 pm
Nonstop1h 25m
Nashville Intl
Mon 8/11
2:55 pm-7:30 pm
1 stop4h 35m
ChicagoNashville
ORD - BNA
ORDBNA
Chicago O'Hare Intl
Thu 8/7
2:55 pm-4:30 pm
Nonstop1h 35m
Nashville Intl
Mon 8/11
12:10 pm-9:30 pm
2 stops9h 20m
ChicagoNashville
ORD - BNA
ORDBNA
Chicago O'Hare Intl
Thu 9/4
6:47 pm-8:24 pm
Nonstop1h 37m
Nashville Intl
Sat 9/6
7:20 am-9:20 am
Nonstop2h 00m
ChicagoNashville
ORD - BNA
ORDBNA
Chicago O'Hare Intl
Mon 8/25
7:18 pm-9:09 pm
Nonstop1h 51m
Nashville Intl
Mon 9/1
9:54 pm-11:55 pm
Nonstop2h 01m
ChicagoLouisville
ORD - SDF
ORDSDF
Chicago O'Hare Intl
Thu 8/7
1:50 pm-11:30 pm
1 stop8h 40m
Louisville Intl
Tue 8/12
5:30 am-11:50 am
1 stop7h 20m
ChicagoNashville
ORD - BNA
ORDBNA
Chicago O'Hare Intl
Fri 7/11
12:35 pm-2:14 pm
Nonstop1h 39m
Nashville Intl
Mon 7/14
7:27 pm-9:30 pm
Nonstop2h 03m
ChicagoKnoxville
MDW - TYS
MDWTYS
Chicago Midway
Mon 8/4
2:46 pm-5:12 pm
Nonstop1h 26m
Knoxville McGhee Tyson
Mon 8/11
1:23 pm-1:56 pm
Nonstop1h 33m
Best time to book a flight from Illinois to Kentucky
Have a flexible travel schedule? Discover the best time to fly to Kentucky from Illinois with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Illinois to Kentucky
What is the cheapest month to book a flight from Illinois to Kentucky?
Currently, January is the cheapest month in which you can book a flight from Illinois to Kentucky (average of $299). Flying from Illinois to Kentucky in April is currently the most expensive (average of $369). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from IL to KY?
Find hourly flight availability from Illinois to Kentucky. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Kentucky as you normally would.
Weekly flight availability from Illinois to Kentucky
Explore weekly flight availability from Illinois to Kentucky. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 12, 2025.
The most flights from USIL to USKY are scheduled on a Wednesday (36 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (28 on average).
Rainfall in Kentucky by month
Plan your trip to Kentucky by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Kentucky ranges from 3.1 - 5.3 inches per month. May is typically the wettest month, when rainfall can reach 5.3 in. September is typically the driest time to visit Kentucky when rainfall is around 3.1 in.
Temperature in Kentucky by month
Plan your trip to Kentucky by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Kentucky, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).
Reviews of airlines servicing Kentucky
Get insights into the airlines that provide service to Kentucky. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Kentucky. Reviews last updated June 12, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta and United Airlines from Illinois to Kentucky to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
Entertainment
Comfort
Food
Boarding
Crew
Reviews
John,May 2025
PVD - BNA
Overall
Entertainment
Comfort
Food
Boarding
Crew
Reviews
John,May 2025
PVD - BNA
Overall
Entertainment
Comfort
Food
Boarding
Crew
Reviews
John,May 2025
PVD - BNA
Overall
Entertainment
Comfort
Food
Boarding
Crew
Reviews
John,May 2025
PVD - BNA
Overall
Entertainment
Comfort
Food
Boarding
Crew
Reviews
John,May 2025
PVD - BNA
Overall
Entertainment
Comfort
Food
Boarding
Crew
Reviews
John,May 2025
PVD - BNA
Related info for your journey
Find useful and relevant information for your journey from Illinois to Kentucky. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Illinois to Kentucky
See prices for flight routes from nearby airports that may be better suited for you.
Top 4 airlines flying from Illinois to Kentucky
Discover the top 4 airlines that operate flights from Illinois to Kentucky. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$102 | Average$145 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$105 | Average$288 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$119 | Average$315 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$157 | Average$553 | FlexibilityNo cancel fee | On-time63% |