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O'Hare Intl

$89+ 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 5/20. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — ORD
May 24 — May 311
Sun 5/24
Sun 5/31
1 adult, Economy
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Cheapflights Tip: The best prices from Louisville Intl to Chicago O'Hare Intl are usually found in August or September, 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 April 24, 2026.

This American Airlines deal was found by Cheapflights users on 4/22. 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.
Tue 5/1211:16 am
SDF
-
ORD
Nonstop1h 40m
American Airlines
Tue 5/196:57 pm
ORD
-
SDF
Nonstop1h 33m
American Airlines
Deal found 4/22$177
This Kiwi.com deal was found by Cheapflights users on 4/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/810:33 am
SDF
-
ORD
1 stop14h 26m
Multiple Airlines
Sun 5/103:44 pm
ORD
-
SDF
1 stop16h 44m
Multiple Airlines
Deal found 4/19$191
This Delta deal was found by Cheapflights users on 4/22. 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.
Tue 5/1210:39 am
SDF
-
ORD
1 stop3h 22m
Delta
Tue 5/125:41 pm
ORD
-
SDF
1 stop5h 11m
Delta
Deal found 4/22$197
This Delta deal was found by Cheapflights users on 4/22. 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.
Tue 5/121:05 pm
SDF
-
ORD
1 stop6h 36m
Delta
Tue 5/199:25 am
ORD
-
SDF
2 stops11h 26m
Delta
Deal found 4/22$202
This Southwest deal was found by Cheapflights users on 4/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/207:00 am
SDF
-
ORD
1 stop6h 50m
Southwest
Wed 5/272:40 pm
ORD
-
SDF
1 stop5h 25m
Southwest
Deal found 4/20$209
This United Airlines deal was found by Cheapflights users on 4/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/202:45 pm
SDF
-
ORD
Nonstop1h 41m
United Airlines
Sat 5/239:20 pm
ORD
-
SDF
Nonstop1h 29m
United Airlines
Deal found 4/21$210
This American Airlines deal was found by Cheapflights users on 4/22. 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.
Mon 5/115:56 am
SDF
-
ORD
Nonstop1h 40m
American Airlines
Tue 5/199:51 pm
ORD
-
SDF
Nonstop1h 32m
American Airlines
Deal found 4/22$211
This American Airlines deal was found by Cheapflights users on 4/23. 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 8/266:45 am
SDF
-
ORD
Nonstop1h 45m
American Airlines
Fri 8/286:50 am
ORD
-
SDF
Nonstop1h 28m
American Airlines
Deal found 4/23$214
This Southwest deal was found by Cheapflights users on 4/19. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/197:00 am
SDF
-
ORD
1 stop6h 50m
Southwest
Tue 5/262:40 pm
ORD
-
SDF
1 stop5h 25m
Southwest
Deal found 4/19$215
This American Airlines deal was found by Cheapflights users on 4/21. 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.
Tue 5/125:56 am
SDF
-
ORD
Nonstop1h 40m
American Airlines
Thu 5/141:54 pm
ORD
-
SDF
1 stop7h 14m
American Airlines
Deal found 4/21$220

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 April 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$177
(American Airlines)

One-way from

$89
(United Airlines)

Popular in

June

Cheapest in

August

Average price

$367

Good round-trip deal

$428 or less

Good one-way deal

$251 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. 13% potential increase in price ($43 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 April 24, 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

Tue 5/19

7:00 am-12:50 pm

1 stop6h 50m

Chicago O'Hare Intl

Tue 5/26

2:40 pm-9:05 pm

1 stop5h 25m

$215

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Wed 6/3

4:28 pm-9:20 pm

1 stop5h 52m

Chicago O'Hare Intl

Sat 6/6

3:47 pm-11:52 pm

1 stop7h 05m

$230

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Sat 5/23

7:50 am-12:56 pm

1 stop6h 06m

Chicago O'Hare Intl

Tue 5/26

7:00 am-1:51 pm

1 stop5h 51m

$230

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Wed 8/26

6:00 am-12:08 pm

1 stop7h 08m

Chicago O'Hare Intl

Fri 8/28

8:15 am-1:48 pm

1 stop4h 33m

$234

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Thu 5/14

5:52 pm-8:14 pm

1 stop3h 22m

Chicago O'Hare Intl

Mon 5/18

6:06 pm-12:25 am

1 stop5h 19m

$263

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Thu 9/10

9:00 am-9:40 am

Nonstop1h 40m

Chicago O'Hare Intl

Sun 9/13

6:35 am-9:15 am

Nonstop1h 40m

$265

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Sat 5/23

5:47 pm-12:07 am

1 stop7h 20m

Chicago O'Hare Intl

Mon 5/25

7:00 am-1:51 pm

1 stop5h 51m

$271
Quickest round-trip

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Wed 5/20

7:15 am-7:55 am

Nonstop1h 40m

Chicago O'Hare Intl

Wed 5/27

7:00 am-9:27 am

Nonstop1h 27m

$273

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Tue 5/12

12:42 pm-8:14 pm

2 stops8h 32m

Chicago O'Hare Intl

Tue 5/19

9:25 am-1:51 pm

1 stop3h 26m

$296

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Tue 5/19

7:50 am-1:01 pm

1 stop6h 11m

Chicago O'Hare Intl

Sun 5/24

7:00 am-2:42 pm

2 stops6h 42m

$298

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/22

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

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 April.
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 68 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, August is the cheapest month in which you can book a flight from Louisville to Chicago O'Hare Intl Airport (average of $198). Flying from Louisville to Chicago O'Hare Intl Airport in June is currently the most expensive (average of $383). 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 April 24, 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 46% 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 April 18, 2026.

Travelers seeking maximum savings on their Louisville to Chicago O'Hare Intl Airport flight should consider departing on Tuesday 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 April 24, 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
9,643 reviews

Food

6.6

Boarding

7.7

Crew

8.1

Overall

7.4

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
United Airlines
7.4
Good
9,643 reviews
United Airlines
7.4
Good
9,643 reviews

Food

6.6

Boarding

7.7

Crew

8.1

Overall

7.4

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
American Airlines
7.1
Good
11,666 reviews
United Airlines
7.4
Good
9,643 reviews

Food

6.6

Boarding

7.7

Crew

8.1

Overall

7.4

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

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 41 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?

    Southwest and Delta can get you from Louisville to Chicago O'Hare Intl Airport in just under 5h 52m. Your travel time can differ by up to 58m. 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 ($114) 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 66% 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 Copa Airlines (80%), Qatar Airways (80%) or Republic Airways (78%) 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 $157. While the most popular route (Louisville Intl - Chicago O'Hare Intl) can be booked for $210 on average, our data indicates $1,077 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, August is the cheapest month in which you can book a flight from Louisville to Chicago O'Hare Intl Airport (average of $198). Flying from Louisville to Chicago O'Hare Intl Airport in June is currently the most expensive (average of $383). 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
Rosemont
Schaumburg
Naperville
Gurnee
Lake Geneva
Delavan
Hoffman Estates
Downers Grove
Oakbrook Terrace
Benton Harbor
Des Plaines
Oak Brook
South Holland
Libertyville
Elgin
Warrenville
Elk Grove Village
Bridgeview
Great Lakes
Lansing

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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 April 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$97Average$253FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$114Average$273FlexibilityNo cancel feeOn-time69%

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