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$51+ 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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SDF
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago O'Hare Intl to Louisville Intl are usually found in August or January, booked 26 days in advance, depart on a Saturday or Friday and return on a Thursday

Cheap 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 September 11, 2025.

Round-trip from

$117
(United Airlines)

One-way from

$51
(United Airlines)

Popular in

February

Cheapest in

August

Average price

$390

Good round-trip deal

$151 or less

Good one-way deal

$115 or less
From Chicago O'Hare Intl to Louisville Intl
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One-way flight from Chicago O'Hare Intl to Louisville Intl
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Highest demand for flights based on searches. 10% potential increase in price ($36 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Chicago O'Hare Intl to Louisville Intl.
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Price to beat on a one-way flight from Chicago O'Hare Intl to Louisville Intl.
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Find 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 September 11, 2025.

This United Airlines deal was found by Cheapflights users on 9/10. 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.
Sat 10/112:42 pmORD - SDF
Nonstop1h 31mUnited Airlines
Sun 10/1210:55 amSDF - ORD
Nonstop1h 38mUnited Airlines
Deal found 9/10$117
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Thu 10/27:50 pmORD - SDF
Nonstop1h 40mUnited Airlines
Sun 10/57:20 pmSDF - ORD
Nonstop1h 49mUnited Airlines
Deal found 9/10$133
This American Airlines deal was found by Cheapflights users on 9/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/3011:41 amORD - SDF
Nonstop1h 22mAmerican Airlines
Sat 10/46:12 pmSDF - ORD
Nonstop1h 40mAmerican Airlines
Deal found 9/9$145
This United Airlines deal was found by Cheapflights users on 9/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1810:50 amORD - SDF
Nonstop1h 31mUnited Airlines
Sun 10/197:00 amSDF - ORD
Nonstop1h 38mUnited Airlines
Deal found 9/11$149
This American Airlines deal was found by Cheapflights users on 9/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/116:59 amORD - SDF
Nonstop1h 24mAmerican Airlines
Mon 10/135:53 pmSDF - ORD
Nonstop1h 36mAmerican Airlines
Deal found 9/9$150
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Tue 10/217:50 pmORD - SDF
Nonstop1h 40mUnited Airlines
Wed 10/227:00 amSDF - ORD
Nonstop1h 38mUnited Airlines
Deal found 9/10$161
This United Airlines deal was found by Cheapflights users on 9/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/127:25 amORD - SDF
Nonstop1h 36mUnited Airlines
Thu 10/1610:55 amSDF - ORD
Nonstop1h 38mUnited Airlines
Deal found 9/11$165
This United Airlines deal was found by Cheapflights users on 9/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/187:25 amORD - SDF
Nonstop1h 34mUnited Airlines
Tue 10/2110:55 amSDF - ORD
Nonstop1h 38mUnited Airlines
Deal found 9/9$171
This United Airlines deal was found by Cheapflights users on 9/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/34:00 pmORD - SDF
Nonstop1h 33mUnited Airlines
Sun 10/55:48 pmSDF - ORD
Nonstop1h 47mUnited Airlines
Deal found 9/9$175
This lol.travel deal was found by Cheapflights users on 9/11. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/47:25 amORD - SDF
Nonstop1h 34mUnited Airlines
Sun 10/57:20 pmSDF - ORD
Nonstop1h 49mUnited Airlines
Deal found 9/11$176

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 September 11, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Louisville that are best for you.

Fly from

O'Hare Intl

Fly to

Louisville

Route

Depart

Return

Price

ChicagoLouisville

ORD - SDF

ORDSDF

Chicago O'Hare Intl

Sat 10/18

7:25 am-9:59 am

Nonstop1h 34m

Louisville Intl

Mon 10/20

10:55 am-11:33 am

Nonstop1h 38m

$117

ChicagoLouisville

ORD - SDF

ORDSDF

Chicago O'Hare Intl

Thu 10/2

6:00 pm-8:33 pm

Nonstop1h 33m

Louisville Intl

Sun 10/5

7:00 am-7:38 am

Nonstop1h 38m

$133

ChicagoLouisville

ORD - SDF

ORDSDF

Chicago O'Hare Intl

Fri 11/14

2:45 pm-5:16 pm

Nonstop1h 31m

Louisville Intl

Sun 11/16

9:00 am-9:40 am

Nonstop1h 40m

$133

ChicagoLouisville

ORD - SDF

ORDSDF

Chicago O'Hare Intl

Sun 10/12

7:25 am-10:01 am

Nonstop1h 36m

Louisville Intl

Thu 10/16

10:55 am-11:33 am

Nonstop1h 38m

$165

ChicagoLouisville

ORD - SDF

ORDSDF

Chicago O'Hare Intl

Mon 10/27

7:30 am-9:59 am

Nonstop1h 29m

Louisville Intl

Thu 10/30

9:00 am-9:40 am

Nonstop1h 40m

$171

ChicagoLouisville

ORD - SDF

ORDSDF

Chicago O'Hare Intl

Sat 11/1

7:30 am-9:58 am

Nonstop1h 28m

Louisville Intl

Sun 11/16

9:00 am-9:40 am

Nonstop1h 40m

$177

ChicagoLouisville

ORD - SDF

ORDSDF

Chicago O'Hare Intl

Sat 10/4

7:25 am-9:59 am

Nonstop1h 34m

Louisville Intl

Sun 10/5

7:20 pm-8:09 pm

Nonstop1h 49m

$177

ChicagoLouisville

ORD - SDF

ORDSDF

Chicago O'Hare Intl

Mon 10/20

7:50 pm-10:30 pm

Nonstop1h 40m

Louisville Intl

Wed 10/22

10:55 am-11:33 am

Nonstop1h 38m

$177

ChicagoLouisville

ORD - SDF

ORDSDF

Chicago O'Hare Intl

Tue 10/21

1:50 pm-9:40 pm

1 stop6h 50m

Louisville Intl

Wed 10/22

5:30 am-11:50 am

1 stop7h 20m

$181

ChicagoLouisville

ORD - SDF

ORDSDF

Chicago O'Hare Intl

Tue 10/21

1:25 pm-12:01 am

2 stops9h 36m

Louisville Intl

Wed 10/22

10:30 am-4:11 pm

1 stop6h 41m

$182

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 19 results
1
2

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?

Use this chart to determine the optimal time to book a round-trip flight from O'Hare Intl to Louisville. Price data was last updated on August 29, 2025.

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 26 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, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Louisville (average of $299). Flying from Chicago O'Hare Intl Airport 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 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 September 11, 2025.

It’s typically best to fly out from Chicago O'Hare Intl Airport to Louisville in the afternoon. Doing so could potentially save you 8% on the flight price compared to flying in the morning, 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 September 7, 2025.

Travelers seeking maximum savings on their Chicago O'Hare Intl Airport to Louisville flight should consider departing on Tuesday evenings when fares are most often at their lowest. Monday mornings 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?

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 September 11, 2025.
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
8,937 reviews

Crew

8.1

Food

6.6

Overall

7.4

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,937 reviews
United Airlines
7.4
Good
8,937 reviews

Crew

8.1

Food

6.6

Overall

7.4

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,937 reviews

Crew

8.1

Food

6.6

Overall

7.4

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

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 33 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 34m. United Airlines provides one of the quickest options available for as low as $117. The distance from Chicago O'Hare Intl Airport to Louisville is about 287 mi. Most flights are nonstop.

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

    American Airlines, at $124, was found to be the cheapest airline from Chicago O'Hare Intl Airport to Louisville. An alternate airline flying to your destination would be United Airlines. American Airlines is 60% 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 (86%), Japan Airlines (85%) or Envoy Air (84%) 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 $224 for a flight from Chicago O'Hare Intl Airport to Louisville. The cheapest flight overall is $58 while the most popular route, (Chicago O'Hare Intl - Louisville Intl) is currently priced at $117.

  • 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, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Louisville (average of $299). Flying from Chicago O'Hare Intl Airport 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.

See more FAQs

Traveling to a place near Louisville?

Book flights to Louisville if you plan to visit one of these locations
Shepherdsville
Jeffersonville
Elizabethtown
Corydon
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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$124Average$286FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$137Average$331FlexibilityNo cancel feeOn-time69%

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