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$105+ Cheap flights from O'Hare Intl (ORD) 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 8/20. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SDF
Aug 28 — Sep 41
Fri 8/28
Fri 9/4
1 adult, Economy
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Find cheap flights from O'Hare Intl to Louisville with Cheapflights

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Cheapflights Tip: The best prices from Chicago O'Hare Intl to Louisville Intl are usually found in August or December, booked 44 days in advance, depart on a Saturday or Thursday and return on a Friday

Cheap flight deals from O'Hare Intl to Louisville

Cheapest flights from O'Hare Intl to Louisville
Explore the most affordable flight options available from O'Hare Intl to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2026.

This American Airlines deal was found by Cheapflights users on 7/27. 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.
Thu 9/1011:15 am
ORD
-
SDF
Nonstop1h 28m
American Airlines
Thu 9/175:59 pm
SDF
-
ORD
Nonstop1h 55m
American Airlines
Deal found 7/27$216
This United Airlines deal was found by Cheapflights users on 7/28. 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.
Tue 9/84:30 pm
ORD
-
SDF
Nonstop1h 37m
United Airlines
Thu 9/107:10 am
SDF
-
ORD
Nonstop1h 40m
United Airlines
Deal found 7/28$217
This American Airlines deal was found by Cheapflights users on 7/26. 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.
Wed 9/97:10 am
ORD
-
SDF
Nonstop1h 34m
American Airlines
Wed 9/1610:29 am
SDF
-
ORD
Nonstop1h 38m
American Airlines
Deal found 7/26$218
This American Airlines deal was found by Cheapflights users on 7/24. 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.
Tue 9/83:24 pm
ORD
-
SDF
Nonstop1h 36m
American Airlines
Tue 9/155:59 pm
SDF
-
ORD
Nonstop1h 55m
American Airlines
Deal found 7/24$219
This United Airlines deal was found by Cheapflights users on 7/26. 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.
Thu 9/39:25 pm
ORD
-
SDF
Nonstop1h 34m
United Airlines
Sun 9/610:23 am
SDF
-
ORD
Nonstop1h 40m
United Airlines
Deal found 7/26$222
This American Airlines deal was found by Cheapflights users on 7/26. 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.
Sun 9/137:59 pm
ORD
-
SDF
Nonstop1h 34m
American Airlines
Wed 9/1610:29 am
SDF
-
ORD
Nonstop1h 38m
American Airlines
Deal found 7/26$227
This United Airlines deal was found by Cheapflights users on 7/28. 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.
Fri 10/306:10 pm
ORD
-
SDF
Nonstop1h 42m
United Airlines
Sun 11/110:37 am
SDF
-
ORD
Nonstop1h 45m
United Airlines
Deal found 7/28$232
This American Airlines deal was found by Cheapflights users on 7/28. 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.
Fri 9/117:09 am
ORD
-
SDF
Nonstop1h 34m
American Airlines
Fri 9/187:03 am
SDF
-
ORD
Nonstop1h 49m
American Airlines
Deal found 7/28$233
This Delta deal was found by Cheapflights users on 7/26. 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.
Wed 9/91:55 pm
ORD
-
SDF
1 stop6h 21m
Delta
Wed 9/1610:32 am
SDF
-
ORD
1 stop6h 41m
Delta
Deal found 7/26$237
This Delta deal was found by Cheapflights users on 7/24. 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.
Sat 8/152:30 pm
ORD
-
SDF
1 stop5h 49m
Delta
Mon 8/175:25 pm
SDF
-
ORD
1 stop4h 05m
Delta
Deal found 7/24$247
This American Airlines deal was found by Cheapflights users on 7/27. 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.
Mon 11/1610:11 am
ORD
-
SDF
Nonstop1h 32m
American Airlines
Fri 11/201:14 pm
SDF
-
ORD
Nonstop1h 43m
American Airlines
Deal found 7/27$249
This Delta deal was found by Cheapflights users on 7/28. 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.
Fri 10/303:40 pm
ORD
-
SDF
1 stop4h 53m
Delta
Sun 11/11:59 pm
SDF
-
ORD
1 stop6h 12m
Delta
Deal found 7/28$252

Find flight deals from O'Hare Intl to Louisville

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to Louisville (SDF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$216
(American Airlines)

One-way from

$105
(Kiwi.com)

Popular in

February

Cheapest in

August

Average price

$508

Good round-trip deal

$359 or less

Good one-way deal

$183 or less
Provider with most accurate pricing for Chicago O'Hare Intl-Louisville Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago O'Hare Intl-Louisville Intl flights.
Search Deals
From Chicago O'Hare Intl to Louisville Intl
Search Deals
One-way flight from Chicago O'Hare Intl to Louisville Intl
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($28 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from Chicago O'Hare Intl to Louisville Intl.
Search Deals
Price to beat on a one-way flight from Chicago O'Hare Intl to Louisville Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from O'Hare Intl 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 July 29, 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Louisville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoLouisville

ORD - SDF

ORDSDF

Chicago O'Hare Intl

Tue 9/15

4:30 pm-7:07 pm

Nonstop1h 37m

Louisville Intl

Wed 9/16

9:00 am-9:41 am

Nonstop1h 41m

$217
Quickest round-trip

ChicagoLouisville

ORD - SDF

ORDSDF

Chicago O'Hare Intl

Thu 10/1

9:25 pm-11:59 pm

Nonstop1h 34m

Louisville Intl

Sun 10/4

7:00 am-7:40 am

Nonstop1h 40m

$227

ChicagoLouisville

ORD - SDF

ORDSDF

Chicago O'Hare Intl

Thu 8/20

1:44 pm-9:19 pm

1 stop6h 35m

Louisville Intl

Mon 8/24

5:25 pm-8:30 pm

1 stop4h 05m

$237

ChicagoLouisville

ORD - SDF

ORDSDF

Chicago O'Hare Intl

Wed 9/9

1:55 pm-9:16 pm

1 stop6h 21m

Louisville Intl

Wed 9/16

10:32 am-4:13 pm

1 stop6h 41m

$237

ChicagoLouisville

ORD - SDF

ORDSDF

Chicago O'Hare Intl

Tue 9/8

11:17 am-5:19 pm

1 stop5h 02m

Louisville Intl

Tue 9/15

5:50 pm-8:30 pm

1 stop3h 40m

$237

ChicagoLouisville

ORD - SDF

ORDSDF

Chicago O'Hare Intl

Sat 8/22

5:30 am-10:32 am

1 stop4h 02m

Louisville Intl

Fri 8/28

1:17 pm-4:51 pm

1 stop4h 34m

$247

ChicagoLouisville

ORD - SDF

ORDSDF

Chicago O'Hare Intl

Fri 10/16

2:00 pm-9:14 pm

1 stop6h 14m

Louisville Intl

Mon 10/19

5:40 pm-8:30 pm

1 stop3h 50m

$257

ChicagoLouisville

ORD - SDF

ORDSDF

Chicago O'Hare Intl

Thu 10/15

7:10 am-1:51 pm

1 stop5h 41m

Louisville Intl

Sun 10/18

10:39 am-1:01 pm

1 stop3h 22m

$257

ChicagoLouisville

ORD - SDF

ORDSDF

Chicago O'Hare Intl

Fri 8/21

6:59 am-1:51 pm

1 stop5h 52m

Louisville Intl

Sun 8/23

2:34 pm-6:29 pm

1 stop4h 55m

$267

ChicagoLouisville

ORD - SDF

ORDSDF

Chicago O'Hare Intl

Fri 8/14

10:35 am-1:11 pm

Nonstop1h 36m

Louisville Intl

Mon 8/17

7:10 am-7:50 am

Nonstop1h 40m

$297

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Showing 1-10 of 24 resultsSorted by cheapest first
1
2
3

Compare providers for flights from O'Hare Intl to Louisville

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from O'Hare Intl to Louisville in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapTicketsDealPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Chicago O'Hare Intl Airport-Louisville flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago O'Hare Intl Airport-Louisville flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago O'Hare Intl Airport-Louisville flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago O'Hare Intl Airport-Louisville flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago O'Hare Intl Airport-Louisville flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from O'Hare Intl to Louisville

Have a flexible travel schedule? Discover the best time to fly to Louisville from O'Hare Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Chicago O'Hare Intl Airport to Louisville

How far ahead should I book a flight from Chicago O'Hare Intl Airport to Louisville?

The price you pay for your flight from Chicago O'Hare Intl Airport to Louisville may vary depending on when you book. For the best chance of a lower fare, look to book 32 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Louisville?

Currently, August is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Louisville (average of $231). Flying from Chicago O'Hare Intl Airport to Louisville in February is currently the most expensive (average of $517). 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 ORD to SDF?

Find hourly flight availability from O'Hare Intl 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 July 29, 2026.

It’s typically best to fly out from Chicago O'Hare Intl Airport to Louisville in the morning. Doing so could potentially save you 27% on the flight price compared to flying in the afternoon, which is usually more expensive.

What is the cheapest day to fly from Chicago O'Hare Intl Airport to Louisville?

Use this chart to determine the cheapest time to fly round-trip from O'Hare Intl to Louisville. Price data was last updated on July 25, 2026.

Travelers seeking maximum savings on their Chicago O'Hare Intl Airport to Louisville flight should consider departing on Saturday afternoons when fares are most often at their lowest. Wednesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Chicago O'Hare Intl Airport to Louisville?

Airfare is typical for this route at the moment.

Chicago O'Hare Intl Airport to Louisville flights typically cost between $139 and $358 in September.
The cheapest round-trip price found within the last 5 days was $216 on American Airlines (Sep 10-Sep 17).

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 July 29, 2026.
See what other customers who have flown with United Airlines and American Airlines from Chicago O'Hare Intl Airport to Louisville have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
10,052 reviews

Overall

7.4

Comfort

7.3

Food

6.6

Crew

8.1

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Tim,May 2023

ORD - DLH

Didn’t have to wait long for the plane and was in the lounge through that time could relax there made it nice.
United Airlines
7.4
Good
10,052 reviews
United Airlines
7.4
Good
10,052 reviews

Overall

7.4

Comfort

7.3

Food

6.6

Crew

8.1

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Tim,May 2023

ORD - DLH

Didn’t have to wait long for the plane and was in the lounge through that time could relax there made it nice.
American Airlines
7.1
Good
11,839 reviews
United Airlines
7.4
Good
10,052 reviews

Overall

7.4

Comfort

7.3

Food

6.6

Crew

8.1

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Tim,May 2023

ORD - DLH

Didn’t have to wait long for the plane and was in the lounge through that time could relax there made it nice.

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl to Louisville. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Louisville from Chicago O'Hare Intl?

    Louisville Intl (SDF), located 5.3 mi from the city center, is the airport you fly into when you book flights from Chicago O'Hare Intl to Louisville. 2 airlines have flights to Louisville Intl from Chicago O'Hare Intl on a regular basis. Booking flights from Chicago O'Hare Intl to Louisville Intl should not be difficult; the airport handles an average of 29 inbound flights from Chicago O'Hare Intl per day.

  • How long is the flight from Chicago O'Hare Intl Airport to Louisville?

    A quick flight from Chicago O'Hare Intl Airport to Louisville can take about 1h 37m. United Airlines provides one of the quickest options available for as low as $217. The distance from Chicago O'Hare Intl Airport to Louisville is about 287 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Chicago O'Hare Intl Airport to Louisville round-trip?

    United Airlines, at $137, was found to be the cheapest airline from Chicago O'Hare Intl Airport to Louisville. An alternate airline flying to your destination would be American Airlines. United Airlines is 63% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the most reliable airlines from Chicago O'Hare Intl Airport to Louisville?

    Consider Alaska Airlines (79%), GoJet (77%) or Japan Airlines (77%) when booking your flight. These represent the most reliable airlines when flying from Chicago O'Hare Intl Airport to Louisville.

  • What are the cheapest flights from Chicago O'Hare Intl Airport to Louisville?

    On average you can expect to pay $335 for a flight from Chicago O'Hare Intl Airport to Louisville. The cheapest flight overall is $111 while the most popular route, (Chicago O'Hare Intl - Louisville Intl) is currently priced at $217.

  • Can I find deals for flights from O'Hare Intl to Louisville that include hotel bookings?

    Yes. In addition to deals on O'Hare Intl to Louisville flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from O'Hare Intl to Louisville?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from O'Hare Intl to Louisville.

  • Can I find deals for business class flights from O'Hare Intl to Louisville?

    Yes. Cheapflights offers flight deals from O'Hare Intl to Louisville by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Louisville?

    Currently, August is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Louisville (average of $231). Flying from Chicago O'Hare Intl Airport to Louisville in February is currently the most expensive (average of $517). 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.

See more FAQs

Traveling to a place near Louisville?

Book flights to Louisville if you plan to visit one of these locations
Corydon
Shepherdsville
Elizabethtown
Jeffersonville
Bardstown

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Top 2 airlines flying from O'Hare Intl to Louisville

Discover the top 2 airlines that operate flights from O'Hare Intl 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 July 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$137Average$456FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$139Average$356FlexibilityNo cancel feeOn-time71%

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