HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Louisville

$51+ Cheap flights from Raleigh to Louisville (RDU - 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 5/25. Fares are subject to change and may not be available on all flights or dates of travel.
RDU — SDF
Apr 20 — Apr 271
Sun 4/20
Sun 4/27
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Raleigh to Louisville 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 Raleigh-Durham to Louisville Intl are usually found in April or March, booked 44 days in advance, depart on a Monday or Friday and return on a Monday

Cheap flight deals from Raleigh to Louisville

Discover tips and strategies to find the most affordable flight options for your journey from Raleigh (RDU) 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 April 15, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$107
(Priceline)

One-way from

$51
(Priceline)

Popular in

December

Cheapest in

April

Average price

$276

Good round-trip deal

$137 or less

Good one-way deal

$81 or less
Provider with most accurate pricing for Raleigh-Durham-Louisville Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Raleigh-Durham-Louisville Intl flights.
Search Deals
From Raleigh-Durham to Louisville Intl
Search Deals
One-way flight from Raleigh-Durham to Louisville Intl
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($17 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals
Price to beat on a round-trip flight from Raleigh-Durham to Louisville Intl.
Search Deals
Price to beat on a one-way flight from Raleigh-Durham to Louisville Intl.
Search Deals

Find flight deals from Raleigh to Louisville

Cheapest flights from Raleigh to Louisville
Explore the most affordable flight options available from Raleigh to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 15, 2025.

This Priceline deal was found by Cheapflights users on 4/15. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/151:46 pmRDU - SDF
Nonstop1h 33mBreeze Airways
Thu 5/223:59 pmSDF - RDU
Nonstop1h 29mBreeze Airways
Deal found 4/15$112
This Delta deal was found by Cheapflights users on 4/15. 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 5/85:55 amRDU - SDF
1 stop4h 13mDelta
Wed 5/147:50 amSDF - RDU
1 stop4h 11mDelta
Deal found 4/15$179
This Booking.com deal was found by Cheapflights users on 4/15. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/211:45 amRDU - SDF
1 stop10h 32mSpirit Airlines
Sun 5/45:05 amSDF - RDU
1 stop5h 29mSpirit Airlines
Deal found 4/15$207
This Southwest deal was found by Cheapflights users on 4/15. 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 6/66:15 amRDU - SDF
1 stop6h 10mSouthwest
Mon 6/93:55 pmSDF - RDU
1 stop3h 45mSouthwest
Deal found 4/15$209
This Priceline deal was found by Cheapflights users on 4/15. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/11:46 pmRDU - SDF
Nonstop1h 33mMultiple Airlines
Mon 5/55:05 amSDF - RDU
1 stop5h 35mMultiple Airlines
Deal found 4/15$222
This American Airlines deal was found by Cheapflights users on 4/15. 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 9/48:46 pmRDU - SDF
1 stop2h 59mAmerican Airlines
Sun 9/76:52 amSDF - RDU
1 stop3h 10mAmerican Airlines
Deal found 4/15$278
This United Airlines deal was found by Cheapflights users on 4/15. 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 5/139:32 amRDU - SDF
1 stop7h 54mUnited Airlines
Tue 5/2010:08 amSDF - RDU
1 stop6h 40mUnited Airlines
Deal found 4/15$311

Cheapflights Fare Finder

Customize your flight search to find flights from Raleigh 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 April 15, 2025.
Use the filters below to find and compare flights from Raleigh to Louisville that are best for you.

Fly from

Raleigh

Fly to

Louisville

Route

Depart

Return

Price

RaleighLouisville

RDU - SDF

RDUSDF

Raleigh-Durham

Thu 5/15

1:46 pm-3:19 pm

Nonstop1h 33m

Louisville Intl

Thu 5/22

3:59 pm-5:28 pm

Nonstop1h 29m

$112

RaleighLouisville

RDU - SDF

RDUSDF

Raleigh-Durham

Thu 5/8

1:38 pm-7:05 pm

1 stop5h 27m

Louisville Intl

Thu 5/15

6:00 am-10:04 am

1 stop4h 04m

$179

RaleighLouisville

RDU - SDF

RDUSDF

Raleigh-Durham

Fri 5/2

11:45 am-10:17 pm

1 stop10h 32m

Louisville Intl

Sun 5/4

5:05 am-10:34 am

1 stop5h 29m

$207

RaleighLouisville

RDU - SDF

RDUSDF

Raleigh-Durham

Fri 6/6

6:15 am-12:25 pm

1 stop6h 10m

Louisville Intl

Mon 6/9

3:55 pm-7:40 pm

1 stop3h 45m

$209

RaleighLouisville

RDU - SDF

RDUSDF

Raleigh-Durham

Thu 5/1

1:46 pm-3:19 pm

Nonstop1h 33m

Louisville Intl

Mon 5/5

5:05 am-10:40 am

1 stop5h 35m

$222

RaleighLouisville

RDU - SDF

RDUSDF

Raleigh-Durham

Thu 9/4

8:46 pm-11:45 pm

1 stop2h 59m

Louisville Intl

Sun 9/7

6:52 am-10:02 am

1 stop3h 10m

$278

RaleighLouisville

RDU - SDF

RDUSDF

Raleigh-Durham

Tue 5/13

9:32 am-5:26 pm

1 stop7h 54m

Louisville Intl

Tue 5/20

10:08 am-4:48 pm

1 stop6h 40m

$311

RaleighLouisville

RDU - SDF

RDUSDF

Raleigh-Durham

Sun 5/25

1:46 pm-3:19 pm

Nonstop1h 33m

$51

RaleighLouisville

RDU - SDF

RDUSDF

Raleigh-Durham

Mon 5/12

7:59 pm-12:05 am

1 stop4h 06m

$90

RaleighLouisville

RDU - SDF

RDUSDF

Raleigh-Durham

Mon 5/5

11:45 am-10:17 pm

1 stop10h 32m

$97

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/15

Showing 1-10 of 14 results
1
2

Compare providers for flights from Raleigh 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 Raleigh to Louisville in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice 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 Raleigh-Louisville flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Raleigh-Louisville flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Raleigh-Louisville flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Raleigh-Louisville flights, Cheapflights users trust eDreams the most. eDreams 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 Raleigh-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 Raleigh to Louisville

Have a flexible travel schedule? Discover the best time to fly to Louisville from Raleigh 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 Raleigh to Louisville

How far ahead should I book a flight from Raleigh to Louisville?

Use this chart to determine the optimal time to book a round-trip flight from Raleigh to Louisville. Price data was last updated on April 11, 2025.

Booking 44 days in advance of your planned departure date is, on average, the best time to get cheap flights from Raleigh to Louisville. 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 Raleigh to Louisville?

Currently, January is the cheapest month in which you can book a flight from Raleigh to Louisville (average of $299). Flying from Raleigh 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 RDU to SDF?

Find hourly flight availability from Raleigh 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 April 15, 2025.

When flying from Raleigh to Louisville, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 69% versus a flight in the morning.

What is the cheapest day to fly from Raleigh to Louisville?

Use this chart to determine the cheapest time to fly round-trip from Raleigh to Louisville. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Raleigh to Louisville flight should consider departing on Monday at noon when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Louisville by month

Plan your trip to Louisville by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Louisville ranges from 3.1 - 5.3 inches per month. May is typically the wettest month, when rainfall can reach 5.3 in. September is typically the driest time to visit Louisville when rainfall is around 3.1 in.

Temperature in Louisville by month

Plan your trip to Louisville by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Louisville, 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 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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 April 15, 2025.
Read through reviews of airlines operating flights from Raleigh to Louisville, such as Breeze Airways, Southwest and Delta. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Breeze Airways
8.1
Very good
158 reviews

Comfort

8.2

Entertainment

6.6

Food

6.7

Overall

8.1

Boarding

8.3

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Breeze Airways
8.1
Very good
158 reviews
Breeze Airways
8.1
Very good
158 reviews

Comfort

8.2

Entertainment

6.6

Food

6.7

Overall

8.1

Boarding

8.3

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Southwest
8.0
Very good
4,279 reviews
Breeze Airways
8.1
Very good
158 reviews

Comfort

8.2

Entertainment

6.6

Food

6.7

Overall

8.1

Boarding

8.3

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Delta
8.0
Very good
7,918 reviews
Breeze Airways
8.1
Very good
158 reviews

Comfort

8.2

Entertainment

6.6

Food

6.7

Overall

8.1

Boarding

8.3

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
United Airlines
7.4
Good
8,658 reviews
Breeze Airways
8.1
Very good
158 reviews

Comfort

8.2

Entertainment

6.6

Food

6.7

Overall

8.1

Boarding

8.3

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
American Airlines
7.2
Good
10,000 reviews
Breeze Airways
8.1
Very good
158 reviews

Comfort

8.2

Entertainment

6.6

Food

6.7

Overall

8.1

Boarding

8.3

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!

Related info for your journey

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

  • What are the cheapest airlines flying from Raleigh to Louisville round-trip?

    Flying on Breeze Airways is currently your cheapest option to Louisville, with prices starting at $107. Additional round-trip tickets that might be worth considering are offered by Delta and Spirit Airlines, with the lowest prices starting at $179 and $194, respectively. Breeze Airways is priced at 69% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Raleigh to Louisville one-way?

    For one-way options, check prices for Breeze Airways. According to our data, you can fly for as low as $51. Users have also found prices from $90 and $97 on Delta and Spirit Airlines, respectively.

  • What are the cheapest flights from Raleigh to Louisville?

    On average you can expect to pay $136 for a flight from Raleigh to Louisville. The cheapest flight overall is $54 while the most popular route, (Raleigh-Durham - Louisville Intl) is currently priced at $107.

  • Can I find deals for flights from Raleigh to Louisville that include hotel bookings?

    Yes. In addition to deals on Raleigh to Louisville flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Raleigh to Louisville?

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

  • Can I find deals for business class flights from Raleigh to Louisville?

    Yes. Cheapflights offers flight deals from Raleigh 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 Raleigh to Louisville?

    Currently, January is the cheapest month in which you can book a flight from Raleigh to Louisville (average of $299). Flying from Raleigh 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 Raleigh?

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

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.

Alternative routes for Raleigh to Louisville

See prices for flight routes from nearby airports that may be better suited for you.
Raleigh to Nashville flights
Charlotte to Nashville flights
Raleigh to Cincinnati flights
Norfolk to Nashville flights
Charlotte to Cincinnati flights
Charlotte to Louisville flights
Greensboro to Nashville flights
Norfolk to Louisville flights
Myrtle Beach to Nashville flights
Raleigh to Lexington flights
Norfolk to Knoxville flights
Myrtle Beach to Louisville flights
Greensboro to Louisville flights
Wilmington to Nashville flights
Raleigh to Knoxville flights
Charlotte to Lexington flights
Norfolk to Lexington flights
Greensboro to Cincinnati flights
Myrtle Beach to Knoxville flights
Norfolk to Cincinnati flights
Wilmington to Cincinnati flights
Asheville to Nashville flights
Charlotte to Evansville flights
Jacksonville to Nashville flights
Myrtle Beach to Lexington flights
Raleigh to Evansville flights
Knoxville to Nashville flights
Fayetteville to Nashville flights
Myrtle Beach to Cincinnati flights
Charlotte to Knoxville flights
Wilmington to Knoxville flights
Blountville to Nashville flights
Fayetteville to Louisville flights
Greensboro to Lexington flights
New Bern to Nashville flights
Blountville to Knoxville flights
Knoxville to Cincinnati flights
Asheville to Cincinnati flights
Wilmington to Lexington flights
Jacksonville to Cincinnati flights
Wilmington to Louisville flights
Raleigh to Blountville flights
Raleigh to Owensboro flights
Jacksonville to Knoxville flights
Jacksonville to Louisville flights
Asheville to Lexington flights
Fayetteville to Lexington flights
Fayetteville to Cincinnati flights
Greensboro to Evansville flights

Top 6 airlines flying from Raleigh to Louisville

Discover the top 6 airlines that operate flights from Raleigh 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 April 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Breeze AirwaysCheapest$97Average$141FlexibilityNo cancel feeOn-timeN/A
Spirit AirlinesCheapest$142Average$200FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$198Average$354FlexibilityNo cancel feeOn-time69%
DeltaCheapest$216Average$377FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$255Average$371FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$266Average$374FlexibilityNo cancel feeOn-time63%

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.