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$49+ 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 8/31. Fares are subject to change and may not be available on all flights or dates of travel.
RDU — SDF
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheapflights Tip: The best prices from Raleigh-Durham to Louisville Intl are usually found in April or July, booked 66 days in advance, depart on a Monday or Thursday 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 August 14, 2025.

Round-trip from

$143
(Breeze Airways)

One-way from

$49
(Breeze Airways)

Popular in

December

Cheapest in

April

Average price

$288

Good round-trip deal

$162 or less

Good one-way deal

$99 or less
From Raleigh-Durham to Louisville Intl
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One-way flight from Raleigh-Durham to Louisville Intl
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Highest demand for flights based on searches. 15% potential increase in price ($56 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Raleigh-Durham to Louisville Intl.
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Price to beat on a one-way flight from Raleigh-Durham to Louisville Intl.
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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 August 14, 2025.

This Breeze Airways deal was found by Cheapflights users on 8/14. 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 Breeze Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1312:43 pmRDU - SDF
Nonstop1h 32mBreeze Airways
Sun 11/162:55 pmSDF - RDU
Nonstop1h 28mBreeze Airways
Deal found 8/14$143
This Breeze Airways deal was found by Cheapflights users on 8/11. 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 Breeze Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/171:46 pmRDU - SDF
Nonstop1h 33mBreeze Airways
Sun 8/243:59 pmSDF - RDU
Nonstop1h 29mBreeze Airways
Deal found 8/11$148
This Southwest deal was found by Cheapflights users on 8/14. 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.
Sat 9/136:00 amRDU - SDF
1 stop6h 45mSouthwest
Sat 9/203:10 pmSDF - RDU
1 stop6h 45mSouthwest
Deal found 8/14$157
This Breeze Airways deal was found by Cheapflights users on 8/13. 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 Breeze Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/141:46 pmRDU - SDF
Nonstop1h 33mBreeze Airways
Thu 8/213:59 pmSDF - RDU
Nonstop1h 29mBreeze Airways
Deal found 8/13$168
This Breeze Airways deal was found by Cheapflights users on 8/12. 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 Breeze Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1112:43 pmRDU - SDF
Nonstop1h 32mBreeze Airways
Thu 9/182:55 pmSDF - RDU
Nonstop1h 28mBreeze Airways
Deal found 8/12$173
This American Airlines deal was found by Cheapflights users on 8/14. 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 9/239:37 amRDU - SDF
1 stop4h 26mAmerican Airlines
Wed 9/2410:56 amSDF - RDU
1 stop4h 39mAmerican Airlines
Deal found 8/14$175
This Southwest deal was found by Cheapflights users on 8/14. 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.
Mon 9/156:30 pmRDU - SDF
1 stop4h 20mSouthwest
Tue 9/166:00 amSDF - RDU
1 stop4h 45mSouthwest
Deal found 8/14$177
This American Airlines deal was found by Cheapflights users on 8/12. 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 9/234:29 pmRDU - SDF
1 stop6h 34mAmerican Airlines
Thu 9/256:31 amSDF - RDU
1 stop5h 41mAmerican Airlines
Deal found 8/12$186
This Delta deal was found by Cheapflights users on 8/12. 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 9/203:08 pmRDU - SDF
1 stop6h 27mDelta
Mon 9/296:00 amSDF - RDU
1 stop3h 51mDelta
Deal found 8/12$187
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/123:07 pmRDU - SDF
1 stop8h 38mMultiple Airlines
Thu 11/132:55 pmSDF - RDU
Nonstop1h 28mMultiple Airlines
Deal found 8/11$188

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 August 14, 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 8/21

1:46 pm-3:19 pm

Nonstop1h 33m

Louisville Intl

Sun 8/24

3:59 pm-5:28 pm

Nonstop1h 29m

$148

RaleighLouisville

RDU - SDF

RDUSDF

Raleigh-Durham

Sun 8/17

1:46 pm-3:19 pm

Nonstop1h 33m

Louisville Intl

Sun 8/24

3:59 pm-5:28 pm

Nonstop1h 29m

$148

RaleighLouisville

RDU - SDF

RDUSDF

Raleigh-Durham

Sat 9/13

6:00 am-12:45 pm

1 stop6h 45m

Louisville Intl

Sat 9/20

3:10 pm-9:55 pm

1 stop6h 45m

$157

RaleighLouisville

RDU - SDF

RDUSDF

Raleigh-Durham

Thu 9/11

12:43 pm-2:15 pm

Nonstop1h 32m

Louisville Intl

Thu 9/18

2:55 pm-4:23 pm

Nonstop1h 28m

$173

RaleighLouisville

RDU - SDF

RDUSDF

Raleigh-Durham

Tue 9/23

3:47 pm-9:36 pm

1 stop5h 49m

Louisville Intl

Wed 9/24

6:00 am-11:18 am

1 stop5h 18m

$175

RaleighLouisville

RDU - SDF

RDUSDF

Raleigh-Durham

Mon 9/15

6:30 pm-10:50 pm

1 stop4h 20m

Louisville Intl

Tue 9/16

6:00 am-10:45 am

1 stop4h 45m

$177

RaleighLouisville

RDU - SDF

RDUSDF

Raleigh-Durham

Wed 10/22

6:30 pm-10:45 pm

1 stop4h 15m

Louisville Intl

Thu 10/23

2:50 pm-9:50 pm

1 stop7h 00m

$177

RaleighLouisville

RDU - SDF

RDUSDF

Raleigh-Durham

Wed 11/12

6:00 am-10:40 am

1 stop4h 40m

Louisville Intl

Thu 11/13

6:00 am-10:45 am

1 stop4h 45m

$186

RaleighLouisville

RDU - SDF

RDUSDF

Raleigh-Durham

Sun 8/31

1:46 pm-3:19 pm

Nonstop1h 33m

$49

RaleighLouisville

RDU - SDF

RDUSDF

Raleigh-Durham

Sun 9/7

12:43 pm-2:15 pm

Nonstop1h 32m

$59

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Showing 1-10 of 13 results
1
2

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 August 8, 2025.

Booking 66 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 August 14, 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 56% versus a flight in the afternoon.

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. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 August 14, 2025.
Read reviews from past customers who have flown Southwest, Delta, and Breeze Airways from Raleigh to Louisville. 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.
Southwest
8.0
Very good
4,244 reviews

Crew

8.6

Comfort

8.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,244 reviews
Southwest
8.0
Very good
4,244 reviews

Crew

8.6

Comfort

8.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
8.0
Very good
7,980 reviews
Southwest
8.0
Very good
4,244 reviews

Crew

8.6

Comfort

8.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Breeze Airways
8.0
Very good
192 reviews
Southwest
8.0
Very good
4,244 reviews

Crew

8.6

Comfort

8.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,244 reviews

Crew

8.6

Comfort

8.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

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 $96. Additional round-trip tickets that might be worth considering are offered by Delta and American Airlines, with the lowest prices starting at $139 and $233, respectively. Breeze Airways is priced at 68% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest flights from Raleigh to Louisville?

    On average you can expect to pay $168 for a flight from Raleigh to Louisville. The cheapest flight overall is $64 while the most popular route, (Raleigh-Durham - Louisville Intl) is currently priced at $148.

  • 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 Louisville?

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

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Top 4 airlines flying from Raleigh to Louisville

Discover the top 4 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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Breeze AirwaysCheapest$96Average$179FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$139Average$305FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$233Average$353FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$266Average$374FlexibilityNo cancel feeOn-time63%

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