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$54+ 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 9/28. Fares are subject to change and may not be available on all flights or dates of travel.
RDU — SDF
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
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 63 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 September 11, 2025.

Round-trip from

$154
(Southwest)

One-way from

$54
(Breeze Airways)

Popular in

December

Cheapest in

April

Average price

$291

Good round-trip deal

$157 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 ($55 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip 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 September 11, 2025.

This Southwest deal was found by Cheapflights users on 9/10. 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 10/86:20 amRDU - SDF
1 stop6h 40mSouthwest
Wed 10/1511:05 amSDF - RDU
1 stop3h 30mSouthwest
Deal found 9/10$154
This Delta deal was found by Cheapflights users on 9/10. 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 10/137:59 pmRDU - SDF
1 stop4h 02mDelta
Tue 10/146:05 pmSDF - RDU
1 stop4h 53mDelta
Deal found 9/10$177
This Delta deal was found by Cheapflights users on 9/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/75:27 pmRDU - SDF
1 stop6h 34mDelta
Fri 10/108:15 pmSDF - RDU
1 stop4h 02mDelta
Deal found 9/11$182
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Fri 10/33:15 pmRDU - SDF
1 stop7h 15mUnited Airlines
Sun 10/57:00 amSDF - RDU
1 stop5h 45mUnited Airlines
Deal found 9/10$195
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Sun 10/1212:43 pmRDU - SDF
Nonstop1h 32mBreeze Airways
Thu 10/162:55 pmSDF - RDU
Nonstop1h 28mBreeze Airways
Deal found 9/11$198
This United Airlines deal was found by Cheapflights users on 9/10. 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 12/93:05 pmRDU - SDF
2 stops7h 24mUnited Airlines
Thu 12/117:00 amSDF - RDU
2 stops7h 07mUnited Airlines
Deal found 9/10$203
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Sun 10/1212:43 pmRDU - SDF
Nonstop1h 32mMultiple Airlines
Thu 10/167:15 amSDF - RDU
1 stop10h 53mMultiple Airlines
Deal found 9/11$207
This Breeze Airways deal was found by Cheapflights users on 9/10. 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 10/212:43 pmRDU - SDF
Nonstop1h 32mBreeze Airways
Sun 10/52:55 pmSDF - RDU
Nonstop1h 28mBreeze Airways
Deal found 9/10$208
This Priceline deal was found by Cheapflights users on 9/10. 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 9/2512:43 pmRDU - SDF
Nonstop1h 32mMultiple Airlines
Mon 9/298:23 amSDF - RDU
1 stop6h 12mMultiple Airlines
Deal found 9/10$215
This Expedia deal was found by Cheapflights users on 9/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/259:23 amRDU - SDF
1 stop12h 41mSpirit Airlines
Mon 9/298:23 amSDF - RDU
1 stop6h 12mSpirit Airlines
Deal found 9/10$224
This Breeze Airways deal was found by Cheapflights users on 9/10. 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 9/1812:43 pmRDU - SDF
Nonstop1h 32mBreeze Airways
Thu 9/252:55 pmSDF - RDU
Nonstop1h 28mBreeze Airways
Deal found 9/10$228

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 September 11, 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

Mon 10/13

3:15 pm-8:33 pm

1 stop5h 18m

Louisville Intl

Fri 10/17

7:00 am-2:01 pm

1 stop7h 01m

$182

RaleighLouisville

RDU - SDF

RDUSDF

Raleigh-Durham

Tue 10/7

5:27 pm-12:01 am

1 stop6h 34m

Louisville Intl

Fri 10/10

8:15 pm-12:17 am

1 stop4h 02m

$182

RaleighLouisville

RDU - SDF

RDUSDF

Raleigh-Durham

Fri 10/3

3:15 pm-10:30 pm

1 stop7h 15m

Louisville Intl

Sun 10/5

7:00 am-12:45 pm

1 stop5h 45m

$195

RaleighLouisville

RDU - SDF

RDUSDF

Raleigh-Durham

Tue 12/9

5:08 pm-11:32 pm

1 stop6h 24m

Louisville Intl

Thu 12/11

7:00 am-2:07 pm

2 stops7h 07m

$198

RaleighLouisville

RDU - SDF

RDUSDF

Raleigh-Durham

Sun 10/12

12:43 pm-2:15 pm

Nonstop1h 32m

Louisville Intl

Thu 10/16

7:15 am-6:08 pm

1 stop10h 53m

$207

RaleighLouisville

RDU - SDF

RDUSDF

Raleigh-Durham

Thu 10/2

12:43 pm-2:15 pm

Nonstop1h 32m

Louisville Intl

Sun 10/5

2:55 pm-4:23 pm

Nonstop1h 28m

$208

RaleighLouisville

RDU - SDF

RDUSDF

Raleigh-Durham

Wed 10/8

6:10 am-1:00 pm

2 stops6h 50m

Louisville Intl

Wed 10/15

6:25 am-2:35 pm

2 stops8h 10m

$228

RaleighLouisville

RDU - SDF

RDUSDF

Raleigh-Durham

Thu 9/18

12:43 pm-2:15 pm

Nonstop1h 32m

Louisville Intl

Thu 9/25

2:55 pm-4:23 pm

Nonstop1h 28m

$228

RaleighLouisville

RDU - SDF

RDUSDF

Raleigh-Durham

Mon 10/20

12:40 pm-5:13 pm

1 stop4h 33m

Louisville Intl

Thu 10/23

1:58 pm-9:43 pm

1 stop7h 45m

$237

RaleighLouisville

RDU - SDF

RDUSDF

Raleigh-Durham

Thu 10/9

5:44 am-9:50 am

1 stop4h 06m

Louisville Intl

Mon 10/13

8:15 pm-12:17 am

1 stop4h 02m

$238

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 20 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 29, 2025.

Booking 63 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 September 11, 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 57% 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 September 11, 2025.
Read reviews from past customers who have flown Southwest, Breeze Airways, and Delta 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
4,248 reviews

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Breeze Airways
8.0
Very good
205 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
8.0
Very good
7,960 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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.

  • How long is the flight from Raleigh to Louisville?

    Departing from Raleigh to Louisville will take you 5h 18m. Airlines will cover a distance of 414 mi. This flight may include one or multiple stops.

  • 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 $232, 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 $213 for a flight from Raleigh to Louisville. The cheapest flight overall is $79 while the most popular route, (Raleigh-Durham - Louisville Intl) is currently priced at $154.

  • 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Breeze AirwaysCheapest$96Average$182FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$139Average$302FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$232Average$348FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$276Average$379FlexibilityNo cancel feeOn-time63%

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