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$73+ Cheap flights from Reagan-National (DCA) to Louisville (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 12/16. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — SDF
Nov 22 — Nov 291
Sat 11/22
Sat 11/29
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. Reagan-National to Louisville Intl are usually found in February or August, booked 86 days in advance, depart on a Saturday or Tuesday and return on a Thursday

Find flight deals from Reagan-National to Louisville

Cheapest flights from Reagan-National to Louisville
Explore the most affordable flight options available from Reagan-National to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 23, 2025.

This Delta deal was found by Cheapflights users on 10/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/66:00 amDCA - SDF
1 stop3h 50mDelta
Mon 11/105:25 pmSDF - DCA
1 stop5h 29mDelta
Deal found 10/21$219
This American Airlines deal was found by Cheapflights users on 10/23. 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.
Tue 12/307:45 pmDCA - SDF
Nonstop1h 48mAmerican Airlines
Sun 1/46:03 amSDF - DCA
Nonstop1h 39mAmerican Airlines
Deal found 10/23$221
This American Airlines deal was found by Cheapflights users on 10/22. 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.
Sun 11/98:31 amDCA - SDF
Nonstop2h 08mAmerican Airlines
Wed 11/264:59 pmSDF - DCA
Nonstop1h 50mAmerican Airlines
Deal found 10/22$224
This American Airlines deal was found by Cheapflights users on 10/22. 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.
Thu 12/411:55 amDCA - SDF
1 stop5h 56mAmerican Airlines
Sat 12/65:28 pmSDF - DCA
Nonstop1h 46mAmerican Airlines
Deal found 10/22$225
This American Airlines deal was found by Cheapflights users on 10/22. 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.
Thu 12/187:50 pmDCA - SDF
1 stop4h 26mAmerican Airlines
Sat 1/105:25 pmSDF - DCA
Nonstop1h 34mAmerican Airlines
Deal found 10/22$226
This American Airlines deal was found by Cheapflights users on 10/22. 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.
Sat 11/157:44 pmDCA - SDF
Nonstop1h 45mAmerican Airlines
Sat 11/225:20 pmSDF - DCA
1 stop3h 40mAmerican Airlines
Deal found 10/22$227
This American Airlines deal was found by Cheapflights users on 10/21. 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.
Wed 11/122:36 pmDCA - SDF
Nonstop1h 53mAmerican Airlines
Sat 11/1511:57 amSDF - DCA
1 stop3h 59mAmerican Airlines
Deal found 10/21$228
This American Airlines deal was found by Cheapflights users on 10/21. 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.
Sat 11/1511:55 amDCA - SDF
1 stop4h 55mAmerican Airlines
Sun 11/166:01 amSDF - DCA
Nonstop1h 44mAmerican Airlines
Deal found 10/21$229
This Southwest deal was found by Cheapflights users on 10/21. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/187:30 amDCA - SDF
1 stop5h 50mSouthwest
Sat 1/104:05 pmSDF - DCA
1 stop4h 10mSouthwest
Deal found 10/21$230
This American Airlines deal was found by Cheapflights users on 10/22. 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 11/107:44 pmDCA - SDF
Nonstop1h 45mAmerican Airlines
Sat 11/155:20 pmSDF - DCA
1 stop5h 21mAmerican Airlines
Deal found 10/22$233
This American Airlines deal was found by Cheapflights users on 10/21. 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 11/47:44 pmDCA - SDF
Nonstop1h 45mAmerican Airlines
Sat 11/85:20 pmSDF - DCA
1 stop6h 36mAmerican Airlines
Deal found 10/21$234
This American Airlines deal was found by Cheapflights users on 10/22. 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.
Sat 11/83:25 pmDCA - SDF
1 stop7h 30mAmerican Airlines
Tue 11/116:01 amSDF - DCA
Nonstop1h 44mAmerican Airlines
Deal found 10/22$239

Cheap flight deals from Reagan-National to Louisville

Discover tips and strategies to find the most affordable flight options for your journey from Reagan-National (DCA) 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 October 23, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$219
(Delta)

One-way from

$73
(Southwest)

Popular in

October

Cheapest in

February

Average price

$402

Good round-trip deal

$275 or less

Good one-way deal

$213 or less
Provider with most accurate pricing for Washington, D.C. Reagan-National-Louisville Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Reagan-National-Louisville Intl flights.
Search Deals
From Washington, D.C. Reagan-National to Louisville Intl
Search Deals
One-way flight from Washington, D.C. Reagan-National to Louisville Intl
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($39 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals
Price to beat on a round-trip flight from Washington, D.C. Reagan-National to Louisville Intl.
Search Deals
Price to beat on a one-way flight from Washington, D.C. Reagan-National to Louisville Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Reagan-National 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 October 23, 2025.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Louisville that are best for you.

Fly from

Reagan-National

Fly to

Louisville

Route

Depart

Return

Price

Washington, D.C.Louisville

DCA - SDF

DCASDF

Washington, D.C. Reagan-National

Thu 11/6

6:00 am-9:50 am

1 stop3h 50m

Louisville Intl

Sun 11/9

6:00 am-11:39 am

1 stop5h 39m

$219

Washington, D.C.Louisville

DCA - SDF

DCASDF

Washington, D.C. Reagan-National

Sat 12/13

6:00 pm-10:56 pm

1 stop4h 56m

Louisville Intl

Sat 1/10

5:25 pm-6:59 pm

Nonstop1h 34m

$219

Washington, D.C.Louisville

DCA - SDF

DCASDF

Washington, D.C. Reagan-National

Sat 12/13

6:05 am-12:05 pm

1 stop6h 00m

Louisville Intl

Sat 1/10

11:10 am-8:30 pm

2 stops9h 20m

$219

Washington, D.C.Louisville

DCA - SDF

DCASDF

Washington, D.C. Reagan-National

Sat 11/8

5:22 pm-9:15 pm

1 stop3h 53m

Louisville Intl

Sun 11/9

7:05 am-11:39 am

1 stop4h 34m

$219

Washington, D.C.Louisville

DCA - SDF

DCASDF

Washington, D.C. Reagan-National

Sat 11/15

7:44 pm-9:29 pm

Nonstop1h 45m

Louisville Intl

Sun 11/16

6:01 am-7:45 am

Nonstop1h 44m

$224

Washington, D.C.Louisville

DCA - SDF

DCASDF

Washington, D.C. Reagan-National

Thu 12/4

11:35 am-4:35 pm

1 stop5h 00m

Louisville Intl

Sat 12/6

10:35 am-6:05 pm

2 stops7h 30m

$229

Washington, D.C.Louisville

DCA - SDF

DCASDF

Washington, D.C. Reagan-National

Fri 12/5

8:28 am-10:40 am

Nonstop2h 12m

Louisville Intl

Sun 12/7

6:21 pm-11:56 pm

1 stop5h 35m

$234

Washington, D.C.Louisville

DCA - SDF

DCASDF

Washington, D.C. Reagan-National

Tue 11/4

10:20 am-2:26 pm

1 stop4h 06m

Louisville Intl

Sat 11/8

3:12 pm-9:43 pm

1 stop6h 31m

$249

Washington, D.C.Louisville

DCA - SDF

DCASDF

Washington, D.C. Reagan-National

Fri 11/7

7:35 pm-12:01 am

1 stop4h 26m

Louisville Intl

Sun 11/9

6:00 am-11:39 am

1 stop5h 39m

$259

Washington, D.C.Louisville

DCA - SDF

DCASDF

Washington, D.C. Reagan-National

Thu 11/27

8:31 am-10:38 am

Nonstop2h 07m

Louisville Intl

Fri 11/28

6:25 am-11:00 am

1 stop4h 35m

$267

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/22

Showing 1-10 of 21 results
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Compare providers for flights from Reagan-National 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 Reagan-National to Louisville in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 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 Washington, D.C. Reagan-National Airport-Louisville flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Reagan-National Airport-Louisville flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Reagan-National Airport-Louisville flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Reagan-National Airport-Louisville 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 Washington, D.C. Reagan-National Airport-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 Reagan-National to Louisville

Have a flexible travel schedule? Discover the best time to fly to Louisville from Reagan-National 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 Washington, D.C. Reagan-National Airport to Louisville

How far ahead should I book a flight from Washington, D.C. Reagan-National Airport to Louisville?

Use this chart to determine the optimal time to book a round-trip flight from Reagan-National to Louisville. Price data was last updated on October 17, 2025.

The price you pay for your flight from Washington, D.C. Reagan-National Airport to Louisville may vary depending on when you book. For the best chance of a lower fare, look to book 86 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Washington, D.C. Reagan-National Airport to Louisville?

Currently, December is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Louisville (average of $130). Flying from Washington, D.C. Reagan-National Airport to Louisville in October is currently the most expensive (average of $196). 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 DCA to SDF?

Find hourly flight availability from Reagan-National 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 October 23, 2025.

It’s typically best to fly out from Washington, D.C. Reagan-National Airport to Louisville in the afternoon. Doing so could potentially save you 36% on the flight price compared to flying at noon, which is usually more expensive.

What is the cheapest day to fly from Washington, D.C. Reagan-National Airport to Louisville?

Use this chart to determine the cheapest time to fly round-trip from Reagan-National to Louisville. Price data was last updated on October 19, 2025.

Travelers seeking maximum savings on their Washington, D.C. Reagan-National Airport to Louisville flight should consider departing on Saturday evenings when fares are most often at their lowest. Sunday afternoons 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 October 23, 2025.
See what other customers who have flown with Delta, United Airlines, and American Airlines from Washington, D.C. Reagan-National Airport to Louisville have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
7,982 reviews

Entertainment

7.9

Boarding

8.2

Overall

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
7.9
Good
7,982 reviews
Delta
7.9
Good
7,982 reviews

Entertainment

7.9

Boarding

8.2

Overall

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
United Airlines
7.4
Good
8,995 reviews
Delta
7.9
Good
7,982 reviews

Entertainment

7.9

Boarding

8.2

Overall

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
American Airlines
7.2
Good
11,032 reviews
Delta
7.9
Good
7,982 reviews

Entertainment

7.9

Boarding

8.2

Overall

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

Related info for your journey

Find useful and relevant information for your journey from Reagan-National to Louisville. 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 into for flights to Louisville from Washington, D.C. Reagan-National?

    Louisville Intl (SDF) is the airport you will fly into if you book a flight from Washington, D.C. Reagan-National to Louisville. You should not have trouble finding flights to Louisville Intl from Washington, D.C. Reagan-National; the airport handles an average of 2 inbound flights from Washington, D.C. Reagan-National per day. You should also have plenty of airline options to choose from since 3 airlines have flights to the Louisville airport from Washington, D.C. Reagan-National. It is only a 5.3 mi journey from Louisville Intl (SDF) to Louisville’s city center.

  • How long is the flight from Washington, D.C. Reagan-National Airport to Louisville?

    Airlines like Delta, American Airlines, and Southwest fly from Washington, D.C. Reagan-National Airport to Louisville in about 3h 50m. The time it takes to get you to your destination can typically vary by up to 2h 10m. The distance from Washington, D.C. Reagan-National Airport to Louisville is about 472 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Washington, D.C. Reagan-National Airport to Louisville round-trip?

    Cheapflights users have booked flights from Washington, D.C. Reagan-National Airport to Louisville round-trip from $189. Other airlines that can offer you cheap pricing are United Airlines, from $189, and Delta, from $198. Users have found that American Airlines is 36% cheaper than the other options available to this destination.

  • What are the most reliable airlines from Washington, D.C. Reagan-National Airport to Louisville?

    Before booking your flight to Louisville from Washington, D.C. Reagan-National Airport, check out the most reliable airlines to get you to your destination on time: Republic Airways (82%), Alaska Airlines (80%), American Airlines( 79%).

  • What are the cheapest flights from Washington, D.C. Reagan-National Airport to Louisville?

    Looking for the cheapest flight from Washington, D.C. Reagan-National Airport to Louisville? While on average our users pay $271, our data indicates the cheapest price to be $117. The most popular route (Washington, D.C. Reagan-National - Louisville Intl), is priced around $145.

  • Can I find deals for flights from Reagan-National to Louisville that include hotel bookings?

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

  • How can I find direct flights from Reagan-National to Louisville?

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

  • Can I find deals for business class flights from Reagan-National to Louisville?

    Yes. Cheapflights offers flight deals from Reagan-National 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 Washington, D.C. Reagan-National Airport to Louisville?

    Currently, December is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Louisville (average of $130). Flying from Washington, D.C. Reagan-National Airport to Louisville in October is currently the most expensive (average of $196). 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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Alternative routes for Reagan-National to Louisville

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Reagan-National to Louisville

Discover the top 3 airlines that operate flights from Reagan-National 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 October 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$189Average$239FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$189Average$293FlexibilityNo cancel feeOn-time71%
DeltaCheapest$198Average$253FlexibilityNo cancel feeOn-timeN/A

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