HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
O'Hare Intl

$49+ 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 4/23. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — ORD
Mar 30 — Apr 61
Sun 3/30
Sun 4/6
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Louisville to O'Hare Intl 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.

Cheapflights Tip: The best prices from Louisville Intl to Chicago O'Hare Intl are usually found in August or October, booked 35 days in advance, depart on a Thursday or Friday and return on a Saturday

Cheap 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 March 25, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$156
(United Airlines)

One-way from

$49
(United Airlines)

Popular in

March

Cheapest in

August

Average price

$383

Good round-trip deal

$464 or less

Good one-way deal

$202 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. 4% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2025
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

Find 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 March 25, 2025.

This United Airlines deal was found by Cheapflights users on 3/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/177:29 amSDF - ORD
Nonstop1h 36mUnited Airlines
Sun 4/2010:50 amORD - SDF
Nonstop1h 35mUnited Airlines
Deal found 3/24$156
This American Airlines deal was found by Cheapflights users on 3/24. 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.
Wed 4/238:56 amSDF - ORD
Nonstop1h 38mAmerican Airlines
Thu 4/246:00 pmORD - SDF
Nonstop1h 27mAmerican Airlines
Deal found 3/24$172
This Southwest deal was found by Cheapflights users on 3/24. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/305:05 pmSDF - ORD
1 stop5h 25mSouthwest
Wed 6/47:30 amORD - SDF
1 stop7h 55mSouthwest
Deal found 3/24$176
This Delta deal was found by Cheapflights users on 3/24. 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.
Thu 4/244:59 pmSDF - ORD
1 stop4h 51mDelta
Sat 4/266:35 amORD - SDF
1 stop5h 28mDelta
Deal found 3/24$177
This FlightHub deal was found by Cheapflights users on 3/25. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/162:07 pmSDF - ORD
1 stop7h 01mSpirit Airlines
Mon 5/196:30 amORD - SDF
1 stop5h 42mSpirit Airlines
Deal found 3/25$231
This Mytrip deal was found by Cheapflights users on 3/24. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/811:23 amSDF - ORD
1 stop13h 06mMultiple Airlines
Thu 5/154:35 pmORD - SDF
2 stops25h 07mMultiple Airlines
Deal found 3/24$240

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 March 25, 2025.
Use the filters below to find and compare flights from Louisville to Chicago O'Hare Intl Airport that are best for you.

Fly from

Louisville

Fly to

O'Hare Intl

Route

Depart

Return

Price

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Thu 4/17

7:29 am-8:05 am

Nonstop1h 36m

Chicago O'Hare Intl

Sun 4/20

10:50 am-1:25 pm

Nonstop1h 35m

$156

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Wed 4/23

8:56 am-9:34 am

Nonstop1h 38m

Chicago O'Hare Intl

Thu 4/24

6:00 pm-8:27 pm

Nonstop1h 27m

$172

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Fri 5/30

5:05 pm-9:30 pm

1 stop5h 25m

Chicago O'Hare Intl

Wed 6/4

7:30 am-4:25 pm

1 stop7h 55m

$176

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Thu 4/24

2:37 pm-8:50 pm

1 stop7h 13m

Chicago O'Hare Intl

Mon 4/28

6:45 am-11:23 am

1 stop3h 38m

$177

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Fri 5/16

2:07 pm-8:08 pm

1 stop7h 01m

Chicago O'Hare Intl

Mon 5/19

6:30 am-1:12 pm

1 stop5h 42m

$231

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Thu 5/8

11:23 am-11:29 pm

1 stop13h 06m

Chicago O'Hare Intl

Thu 5/15

4:35 pm-6:42 pm

2 stops25h 07m

$240

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Wed 4/23

7:29 am-8:05 am

Nonstop1h 36m

$49

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Tue 4/29

4:10 pm-9:30 pm

1 stop6h 20m

$59

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Fri 4/25

8:57 pm-9:30 pm

Nonstop1h 33m

$64

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Thu 5/22

2:38 pm-6:37 pm

1 stop4h 59m

$89

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/24

Showing 1-10 of 13 results
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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*2 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?

Use this chart to determine the optimal time to book a round-trip flight from Louisville to O'Hare Intl. Price data was last updated on March 21, 2025.

Booking 35 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 $245). Flying from Louisville to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $323). 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 March 25, 2025.

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 53% 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 March 16, 2025.

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

Weekly flight availability from Louisville to Chicago O'Hare Intl Airport

Explore weekly flight availability from Louisville to O'Hare Intl. 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 March 25, 2025.

The most flights from SDF to ORD are scheduled on a Wednesday (31 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (22 on average).

Rainfall in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Chicago O'Hare Intl Airport ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Chicago O'Hare Intl Airport when rainfall is around 1.7 in.

Temperature in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Chicago O'Hare Intl Airport, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 March 25, 2025.
Get a feel of what it's like to fly with Southwest, Delta and United Airlines from Louisville to Chicago by reading reviews from past customers. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,272 reviews

Crew

8.6

Food

7.1

Entertainment

7.6

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.0
Very good
4,272 reviews
Southwest
8.0
Very good
4,272 reviews

Crew

8.6

Food

7.1

Entertainment

7.6

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Delta
8.0
Very good
7,890 reviews
Southwest
8.0
Very good
4,272 reviews

Crew

8.6

Food

7.1

Entertainment

7.6

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,605 reviews
Southwest
8.0
Very good
4,272 reviews

Crew

8.6

Food

7.1

Entertainment

7.6

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,272 reviews

Crew

8.6

Food

7.1

Entertainment

7.6

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Sun Country Air
6.9
Okay
348 reviews
Southwest
8.0
Very good
4,272 reviews

Crew

8.6

Food

7.1

Entertainment

7.6

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

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 28 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.

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

    According to our current data, United Airlines ($156), American Airlines ($172), and Southwest ($176) 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 41% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Louisville to Chicago O'Hare Intl Airport one-way?

    $49 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Southwest and American Airlines, with prices starting from $59 and $64, respectively.

  • 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 GoJet (100%), Royal Jordanian (93%) or Copa Airlines (93%) 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 $78. While the most popular route (Louisville Intl - Chicago O'Hare Intl) can be booked for $97 on average our data indicates $1,588 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 $245). Flying from Louisville to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $323). 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
Rosemont
Beloit
Naperville
Schaumburg
Racine
Hoffman Estates
Rockford
Tinley Park
Skokie
Kenosha
Arlington Heights
Joliet
Orland Park
Merrillville
Northbrook
Evanston
New Buffalo
Elgin
Glenview
Lake Geneva

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 March 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$106Average$277FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$117Average$260FlexibilityNo cancel feeOn-time71%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.