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O'Hare Intl

$96+ Cheap flights from Louisville (SDF) to O'Hare Intl (ORD)

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 8/17. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — ORD
Aug 22 — Aug 291
Sat 8/22
Sat 8/29
1 adult, Economy
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Find cheap flights from Louisville to O'Hare Intl with Cheapflights

1. Tell us where you want to go

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Cheapflights Tip: The best prices from Louisville Intl to Chicago O'Hare Intl are usually found in November or October, booked 75 days in advance, depart on a Friday or Thursday and return on a Saturday

Cheap flight deals from Louisville to O'Hare Intl

Cheapest flights from Louisville to O'Hare Intl
Explore the most affordable flight options available from Louisville to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 23, 2026.

This United Airlines deal was found by Cheapflights users on 7/22. 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 8/157:10 am
SDF
-
ORD
Nonstop1h 40m
United Airlines
Tue 8/184:30 pm
ORD
-
SDF
Nonstop1h 37m
United Airlines
Deal found 7/22$217
This American Airlines deal was found by Cheapflights users on 7/21. 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 8/146:28 am
SDF
-
ORD
Nonstop1h 47m
American Airlines
Sat 8/157:15 am
ORD
-
SDF
Nonstop1h 30m
American Airlines
Deal found 7/21$222
This American Airlines deal was found by Cheapflights users on 7/21. 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 8/216:28 am
SDF
-
ORD
Nonstop1h 47m
American Airlines
Sun 8/233:24 pm
ORD
-
SDF
Nonstop1h 36m
American Airlines
Deal found 7/21$227
This American Airlines deal was found by Cheapflights users on 7/18. 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 9/26:30 pm
SDF
-
ORD
Nonstop1h 54m
American Airlines
Sun 9/68:05 am
ORD
-
SDF
Nonstop1h 30m
American Airlines
Deal found 7/18$232
This Delta deal was found by Cheapflights users on 7/22. 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.
Thu 8/137:55 am
SDF
-
ORD
1 stop6h 13m
Delta
Mon 8/171:41 pm
ORD
-
SDF
1 stop6h 38m
Delta
Deal found 7/22$237
This Delta deal was found by Cheapflights users on 7/22. 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.
Sun 8/1610:34 am
SDF
-
ORD
1 stop6h 43m
Delta
Sat 8/2211:22 am
ORD
-
SDF
1 stop4h 19m
Delta
Deal found 7/22$242
This Delta deal was found by Cheapflights users on 7/22. 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 8/155:21 pm
SDF
-
ORD
1 stop4h 09m
Delta
Sun 8/166:59 am
ORD
-
SDF
1 stop5h 52m
Delta
Deal found 7/22$247
This American Airlines deal was found by Cheapflights users on 7/21. 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 8/136:28 am
SDF
-
ORD
Nonstop1h 47m
American Airlines
Mon 8/178:05 am
ORD
-
SDF
Nonstop1h 30m
American Airlines
Deal found 7/21$248
This American Airlines deal was found by Cheapflights users on 7/19. 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 12/306:14 pm
SDF
-
ORD
Nonstop1h 58m
American Airlines
Thu 1/76:55 pm
ORD
-
SDF
Nonstop1h 40m
American Airlines
Deal found 7/19$261
This American Airlines deal was found by Cheapflights users on 7/22. 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 9/411:05 am
SDF
-
ORD
Nonstop1h 39m
American Airlines
Mon 9/76:50 pm
ORD
-
SDF
Nonstop1h 35m
American Airlines
Deal found 7/22$266
This Delta deal was found by Cheapflights users on 7/20. 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.
Mon 8/105:25 pm
SDF
-
ORD
1 stop4h 05m
Delta
Sat 8/152:30 pm
ORD
-
SDF
1 stop5h 49m
Delta
Deal found 7/20$267
This American Airlines deal was found by Cheapflights users on 7/20. 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 9/46:30 pm
SDF
-
ORD
Nonstop1h 54m
American Airlines
Fri 9/112:55 pm
ORD
-
SDF
Nonstop1h 34m
American Airlines
Deal found 7/20$268

Find flight deals from Louisville to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from Louisville (SDF) to O'Hare Intl (ORD). 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 23, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$217
(United Airlines)

One-way from

$96
(Kiwi.com)

Popular in

July

Cheapest in

November

Average price

$403

Good round-trip deal

$417 or less

Good one-way deal

$292 or less
Provider with most accurate pricing for Louisville Intl-Chicago O'Hare Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Louisville Intl-Chicago O'Hare Intl flights.
Search Deals
From Louisville Intl to Chicago O'Hare Intl
Search Deals
One-way flight from Louisville Intl to Chicago O'Hare Intl
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($35 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 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 Louisville Intl to Chicago O'Hare Intl.
Search Deals
Price to beat on a one-way flight from Louisville Intl to Chicago O'Hare Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Louisville to O'Hare Intl 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 23, 2026.
Use the filters below to find and compare flights from Louisville to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Thu 10/22

2:31 pm-6:25 pm

1 stop4h 54m

Chicago O'Hare Intl

Sun 10/25

7:10 am-1:51 pm

1 stop5h 41m

$247

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Sat 10/10

10:39 am-4:24 pm

1 stop6h 45m

Chicago O'Hare Intl

Sun 10/11

7:10 am-1:51 pm

1 stop5h 41m

$247

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Mon 8/10

5:25 pm-8:30 pm

1 stop4h 05m

Chicago O'Hare Intl

Sat 8/15

2:30 pm-9:19 pm

1 stop5h 49m

$267
Quickest round-trip

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Fri 8/21

5:45 pm-6:36 pm

Nonstop1h 51m

Chicago O'Hare Intl

Tue 8/25

9:25 pm-11:59 pm

Nonstop1h 34m

$281

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Sun 9/6

10:34 am-4:17 pm

1 stop6h 43m

Chicago O'Hare Intl

Sun 9/20

8:55 am-2:07 pm

1 stop4h 12m

$296

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Mon 9/7

7:55 am-1:08 pm

1 stop6h 13m

Chicago O'Hare Intl

Thu 9/10

11:17 am-5:19 pm

1 stop5h 02m

$301

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Thu 10/1

7:55 am-12:59 pm

1 stop6h 04m

Chicago O'Hare Intl

Tue 10/6

2:00 pm-9:14 pm

1 stop6h 14m

$323

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Wed 8/19

1:56 pm-6:37 pm

1 stop5h 41m

Chicago O'Hare Intl

Mon 8/24

9:25 pm-11:59 pm

Nonstop1h 34m

$330

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Mon 8/24

6:00 am-9:38 am

1 stop4h 38m

Chicago O'Hare Intl

Tue 8/25

9:25 pm-11:59 pm

Nonstop1h 34m

$332

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Thu 8/20

7:10 am-7:50 am

Nonstop1h 40m

Chicago O'Hare Intl

Sun 8/23

8:45 am-2:37 pm

1 stop4h 52m

$332

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/22

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

Compare providers for flights from Louisville to O'Hare Intl

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 Louisville to O'Hare Intl in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust 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 Louisville-Chicago O'Hare Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Louisville-Chicago O'Hare Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Louisville-Chicago O'Hare Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Louisville-Chicago O'Hare Intl Airport 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 Louisville-Chicago O'Hare Intl Airport 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 Louisville to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Louisville 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 Louisville to Chicago O'Hare Intl Airport

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

Booking 74 days in advance of your planned departure date is, on average, the best time to get cheap flights from Louisville to Chicago O'Hare Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, November is the cheapest month in which you can book a flight from Louisville to Chicago O'Hare Intl Airport (average of $238). Flying from Louisville to Chicago O'Hare Intl Airport in July is currently the most expensive (average of $403). 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 SDF to ORD?

Find hourly flight availability from Louisville to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 23, 2026.

A simple way to save on the total cost of your ticket is to fly from Louisville to Chicago O'Hare Intl Airport in the morning. If you’re flexible enough to do this you can expect to save up to 48% on your trip compared to booking a flight at noon.

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

Use this chart to determine the cheapest time to fly round-trip from Louisville to O'Hare Intl. Price data was last updated on July 18, 2026.

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

Reviews of airlines servicing O'Hare Intl

Get insights into the airlines that provide service to O'Hare Intl. 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 O'Hare Intl. Reviews last updated July 23, 2026.
Read reviews from past customers who have flown United Airlines and American Airlines from Louisville to Chicago O'Hare Intl Airport. 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.
United Airlines
7.4
Good
10,024 reviews

Crew

8.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Food

6.6

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
10,024 reviews
United Airlines
7.4
Good
10,024 reviews

Crew

8.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Food

6.6

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
7.1
Good
11,832 reviews
United Airlines
7.4
Good
10,024 reviews

Crew

8.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Food

6.6

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 Louisville to O'Hare Intl. 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 from for flights from Louisville to Chicago O'Hare Intl?

    Louisville Intl (SDF) is the airport you will fly out of if you book a flight from Louisville to Chicago O'Hare Intl. You should not have trouble finding flights to Chicago O'Hare Intl from Louisville Intl; the airport handles an average of 31 outbound flights to Chicago O'Hare Intl per day. You should also have plenty of airline options to choose from since 2 airlines have flights from the Louisville airport to Chicago O'Hare Intl. It is only a 5.3 mi journey to Louisville Intl (SDF) from Louisville’s city center.

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

    Delta and United Airlines can get you from Louisville to Chicago O'Hare Intl Airport in just under 1h 51m. Your travel time can differ by up to 3h 03m. The distance between Louisville and Chicago O'Hare Intl Airport is about 287 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    According to our current data, American Airlines ($97), and United Airlines ($137) offers the cheapest pricing from Louisville to Chicago O'Hare Intl Airport. You may be able to fly from Louisville to Chicago O'Hare Intl Airport for 69% less than the average price by searching for these airlines.

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

    No one likes to see their flight delayed. When booking a flight from Louisville to Chicago O'Hare Intl Airport consider choosing Japan Airlines (91%), Qatar Airways (87%) or Republic Airways (86%) as they are the most reliable in getting you off to your destination on time.

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

    Looking at all options, your cheapest flight can be booked for $148. While the most popular route (Louisville Intl - Chicago O'Hare Intl) can be booked for $217 on average, our data indicates $3,657 when flying from Louisville to Chicago O'Hare Intl Airport.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Louisville to O'Hare Intl 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 Louisville to Chicago O'Hare Intl Airport?

    Currently, November is the cheapest month in which you can book a flight from Louisville to Chicago O'Hare Intl Airport (average of $238). Flying from Louisville to Chicago O'Hare Intl Airport in July is currently the most expensive (average of $403). 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 Chicago O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Benton Harbor
Rosemont
Schaumburg
Lake Geneva
Naperville
Oak Brook
Delavan
Oakbrook Terrace
Gurnee
South Holland
Libertyville
Orland Park
Hoffman Estates
Beloit
Downers Grove
Rockford
Racine
Great Lakes
Janesville
Joliet

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Louisville to O'Hare Intl

Discover the top 2 airlines that operate flights from Louisville to O'Hare Intl. 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 23, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$97Average$294FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$137Average$338FlexibilityNo cancel feeOn-time69%

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