$49+ Cheap flights from Illinois to Louisville (SDF)
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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Illinois to Louisville 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 Louisville
Keep the following information in mind while searching for Illinois to Louisville flight deals. Data was last updated April 17, 2025.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $171 (United Airlines) |
One-way from | $49 (American Airlines) |
Popular in | February |
Cheapest in | August |
Average price | $343 |
Good round-trip deal | $201 or less |
Good one-way deal | $133 or less |
Find flight deals from Illinois to Louisville
Cheapest flights from Illinois to LouisvilleExplore the most affordable flight options available from Illinois to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.
Explore the most affordable flight options available from Illinois to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.
This United Airlines deal was found by Cheapflights users on 4/17. 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 4/16. 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 4/16. 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 Delta deal was found by Cheapflights users on 4/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 4/16. 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 Delta 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 4/16. 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 Mytrip deal was found by Cheapflights users on 4/17. 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 Mytrip 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 4/16. 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 Mytrip deal was found by Cheapflights users on 4/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 4/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 4/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Mytrip deal was found by Cheapflights users on 4/17. 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 Mytrip 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 Louisville 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 April 17, 2025.
Use the filters below to find and compare flights from Illinois to Louisville that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
ChicagoLouisville
ORD - SDF
ORDSDF
Chicago O'Hare Intl
Wed 6/4
7:00 am-9:33 am
Nonstop1h 33m
Louisville Intl
Wed 6/4
2:05 pm-2:45 pm
Nonstop1h 40m
ChicagoLouisville
MDW - SDF
MDWSDF
Chicago Midway
Wed 6/25
6:55 am-1:20 pm
1 stop5h 25m
Louisville Intl
Sat 6/28
6:00 pm-6:20 pm
Nonstop1h 20m
ChicagoLouisville
ORD - SDF
ORDSDF
Chicago O'Hare Intl
Tue 5/20
8:35 am-10:58 am
Nonstop1h 23m
Louisville Intl
Wed 5/21
7:24 am-12:18 pm
1 stop5h 54m
ChicagoLouisville
ORD - SDF
ORDSDF
Chicago O'Hare Intl
Thu 5/8
1:45 pm-9:26 pm
1 stop6h 41m
Louisville Intl
Mon 5/12
8:10 pm-11:58 pm
1 stop4h 48m
ChicagoLouisville
MDW - SDF
MDWSDF
Chicago Midway
Thu 5/8
1:08 pm-6:29 pm
1 stop4h 21m
Louisville Intl
Mon 5/12
2:38 pm-6:45 pm
1 stop5h 07m
St. LouisLouisville
STL - SDF
STLSDF
Lambert-St Louis
Tue 5/20
7:30 pm-10:58 am
1 stop14h 28m
Louisville Intl
Thu 5/22
5:45 am-1:07 pm
1 stop8h 22m
ChicagoLouisville
ORD - SDF
ORDSDF
Chicago O'Hare Intl
Thu 5/8
10:00 am-11:02 am
1 stop24h 02m
Louisville Intl
Mon 5/12
12:07 pm-11:50 am
2 stops24h 43m
ChicagoLouisville
ORD - SDF
ORDSDF
Chicago O'Hare Intl
Tue 7/1
1:50 pm-11:30 pm
1 stop8h 40m
Louisville Intl
Fri 7/4
8:55 am-3:00 pm
1 stop7h 05m
MolineLouisville
MLI - SDF
MLISDF
Moline Quad-City
Wed 5/14
8:39 am-8:19 am
1 stop22h 40m
Louisville Intl
Fri 5/16
3:15 pm-8:41 am
1 stop18h 26m
MolineLouisville
MLI - SDF
MLISDF
Moline Quad-City
Fri 5/9
5:15 pm-10:43 pm
1 stop4h 28m
Louisville Intl
Mon 5/12
5:55 pm-10:57 pm
1 stop6h 02m
Best time to book a flight from Illinois to Louisville
Have a flexible travel schedule? Discover the best time to fly to Louisville from Illinois with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Illinois to Louisville
What is the cheapest month to book a flight from Illinois to Louisville?
Currently, January is the cheapest month in which you can book a flight from Illinois to Louisville (average of $299). Flying from Illinois to Louisville 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 SDF?
Find hourly flight availability from Illinois to Louisville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 17, 2025.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Louisville as you normally would.
Weekly flight availability from Illinois to Louisville
Explore weekly flight availability from Illinois to Louisville. 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 April 17, 2025.
The most flights from USIL to SDF are scheduled on a Wednesday (39 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (16 on average).
Rainfall in Louisville by month
Plan your trip to Louisville by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Louisville 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 Louisville when rainfall is around 3.1 in.
Temperature in Louisville by month
Plan your trip to Louisville by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Louisville, 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 Louisville
Get insights into the airlines that provide service to Louisville. 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 Louisville. Reviews last updated April 17, 2025.
See what other customers who have flown with Southwest, Delta and United Airlines from Illinois to Louisville have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
Boarding
Overall
Entertainment
Food
Comfort
Reviews
Ila,Mar 2025
HOU - DAL
Crew
Boarding
Overall
Entertainment
Food
Comfort
Reviews
Ila,Mar 2025
HOU - DAL
Crew
Boarding
Overall
Entertainment
Food
Comfort
Reviews
Ila,Mar 2025
HOU - DAL
Crew
Boarding
Overall
Entertainment
Food
Comfort
Reviews
Ila,Mar 2025
HOU - DAL
Crew
Boarding
Overall
Entertainment
Food
Comfort
Reviews
Ila,Mar 2025
HOU - DAL
Crew
Boarding
Overall
Entertainment
Food
Comfort
Reviews
Ila,Mar 2025
HOU - DAL
Related info for your journey
Find useful and relevant information for your journey from Illinois to Louisville. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Illinois?
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Alternative routes for Illinois to Louisville
See prices for flight routes from nearby airports that may be better suited for you.
Top 3 airlines flying from Illinois to Louisville
Discover the top 3 airlines that operate flights from Illinois to Louisville. 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 April 17, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$117 | Average$332 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$117 | Average$299 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$157 | Average$539 | FlexibilityNo cancel fee | On-time63% |