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Reagan-National

$91+ Cheap flights from Louisville (SDF) to Reagan-National (DCA)

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 5/19. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — DCA
May 23 — May 301
Sat 5/23
Sat 5/30
1 adult, Economy
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Cheapflights Tip: The best prices from Louisville Intl to Washington, D.C. Reagan-National are usually found in August or January, booked 73 days in advance, depart on a Thursday or Friday and return on a Saturday

Cheap flight deals from Louisville to Reagan-National

Cheapest flights from Louisville to Reagan-National
Explore the most affordable flight options available from Louisville to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 23, 2026.

This Southwest deal was found by Cheapflights users on 4/22. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1910:30 am
SDF
-
DCA
1 stop6h 30m
Southwest
Wed 5/206:55 am
DCA
-
SDF
1 stop5h 30m
Southwest
Deal found 4/22$208
This Southwest deal was found by Cheapflights users on 4/19. 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.
Tue 5/193:30 pm
SDF
-
DCA
2 stops7h 30m
Southwest
Tue 5/267:55 am
DCA
-
SDF
1 stop7h 10m
Southwest
Deal found 4/19$222
This American Airlines deal was found by Cheapflights users on 4/20. 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 6/106:01 am
SDF
-
DCA
Nonstop1h 49m
American Airlines
Mon 6/157:45 pm
DCA
-
SDF
Nonstop1h 56m
American Airlines
Deal found 4/20$223
This Southwest deal was found by Cheapflights users on 4/22. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/282:40 pm
SDF
-
DCA
1 stop5h 15m
Southwest
Mon 6/16:05 am
DCA
-
SDF
1 stop5h 35m
Southwest
Deal found 4/22$226
This Southwest deal was found by Cheapflights users on 4/20. 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 5/292:40 pm
SDF
-
DCA
1 stop5h 15m
Southwest
Wed 6/106:00 am
DCA
-
SDF
1 stop4h 05m
Southwest
Deal found 4/20$237
This American Airlines deal was found by Cheapflights users on 4/21. 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 5/124:27 pm
SDF
-
DCA
Nonstop1h 51m
American Airlines
Sat 5/167:30 pm
DCA
-
SDF
Nonstop1h 56m
American Airlines
Deal found 4/21$240
This Delta deal was found by Cheapflights users on 4/20. 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.
Wed 6/107:49 am
SDF
-
DCA
1 stop3h 45m
Delta
Tue 6/169:39 am
DCA
-
SDF
1 stop4h 00m
Delta
Deal found 4/20$243
This Southwest deal was found by Cheapflights users on 4/20. 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 6/86:05 pm
SDF
-
DCA
1 stop5h 10m
Southwest
Tue 6/94:40 pm
DCA
-
SDF
1 stop5h 50m
Southwest
Deal found 4/20$245
This American Airlines deal was found by Cheapflights users on 4/21. 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.
Fri 5/296:01 am
SDF
-
DCA
Nonstop1h 49m
American Airlines
Mon 6/17:45 pm
DCA
-
SDF
Nonstop1h 56m
American Airlines
Deal found 4/21$249

Find flight deals from Louisville to Reagan-National

Discover tips and strategies to find the most affordable flight options for your journey from Louisville (SDF) to Reagan-National (DCA). 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 23, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$208
(Southwest)

One-way from

$91
(Southwest)

Popular in

March

Cheapest in

August

Average price

$314

Good round-trip deal

$299 or less

Good one-way deal

$112 or less
Provider with most accurate pricing for Louisville Intl-Washington, D.C. Reagan-National flight deals.
Search Deals
Provider most trusted by Cheapflights users for Louisville Intl-Washington, D.C. Reagan-National flights.
Search Deals
From Louisville Intl to Washington, D.C. Reagan-National
Search Deals
One-way flight from Louisville Intl to Washington, D.C. Reagan-National
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($33 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals
Price to beat on a round-trip flight from Louisville Intl to Washington, D.C. Reagan-National.
Search Deals
Price to beat on a one-way flight from Louisville Intl to Washington, D.C. Reagan-National.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Louisville to Reagan-National 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 23, 2026.
Use the filters below to find and compare flights from Louisville to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

LouisvilleWashington, D.C.

SDF - DCA

SDFDCA

Louisville Intl

Thu 7/2

6:00 am-7:50 am

Nonstop1h 50m

Washington, D.C. Reagan-National

Sun 7/12

7:45 pm-9:40 pm

Nonstop1h 55m

$249

LouisvilleWashington, D.C.

SDF - DCA

SDFDCA

Louisville Intl

Fri 5/29

3:29 pm-9:45 pm

1 stop6h 16m

Washington, D.C. Reagan-National

Sun 5/31

6:00 am-11:53 am

1 stop5h 53m

$269

LouisvilleWashington, D.C.

SDF - DCA

SDFDCA

Louisville Intl

Thu 6/11

4:40 pm-11:44 pm

1 stop7h 04m

Washington, D.C. Reagan-National

Thu 6/18

7:35 pm-12:32 am

1 stop4h 57m

$269

LouisvilleWashington, D.C.

SDF - DCA

SDFDCA

Louisville Intl

Thu 7/2

6:00 am-12:46 pm

1 stop6h 46m

Washington, D.C. Reagan-National

Sun 7/12

9:00 am-3:42 pm

1 stop6h 42m

$269

LouisvilleWashington, D.C.

SDF - DCA

SDFDCA

Louisville Intl

Thu 8/6

4:47 pm-11:48 pm

1 stop7h 01m

Washington, D.C. Reagan-National

Sun 8/9

7:00 am-11:51 am

1 stop4h 51m

$269

LouisvilleWashington, D.C.

SDF - DCA

SDFDCA

Louisville Intl

Fri 7/24

6:38 pm-11:48 pm

1 stop5h 10m

Washington, D.C. Reagan-National

Sun 7/26

6:00 am-10:29 am

1 stop4h 29m

$269

LouisvilleWashington, D.C.

SDF - DCA

SDFDCA

Louisville Intl

Thu 7/2

6:00 am-12:46 pm

1 stop6h 46m

Washington, D.C. Reagan-National

Mon 7/6

1:30 pm-8:58 pm

1 stop7h 28m

$269

LouisvilleWashington, D.C.

SDF - DCA

SDFDCA

Louisville Intl

Mon 6/8

3:35 pm-11:15 pm

2 stops7h 40m

Washington, D.C. Reagan-National

Tue 6/9

11:45 am-8:25 pm

2 stops8h 40m

$288

LouisvilleWashington, D.C.

SDF - DCA

SDFDCA

Louisville Intl

Tue 5/19

4:40 pm-11:00 pm

2 stops6h 20m

Washington, D.C. Reagan-National

Wed 5/20

6:05 am-11:20 am

1 stop5h 15m

$289

LouisvilleWashington, D.C.

SDF - DCA

SDFDCA

Louisville Intl

Fri 5/29

2:40 pm-10:40 pm

2 stops8h 00m

Washington, D.C. Reagan-National

Mon 6/1

5:15 pm-9:45 pm

1 stop4h 30m

$300

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/20

Showing 1-10 of 22 resultsSorted by cheapest first
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2
3

Compare providers for flights from Louisville to Reagan-National

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

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

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

Use this chart to determine the optimal time to book a round-trip flight from Louisville to Reagan-National. Price data was last updated on April 17, 2026.

The price you pay for your flight from Louisville to Washington, D.C. Reagan-National Airport may vary depending on when you book. For the best chance of a lower fare, look to book 73 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 Louisville to Washington, D.C. Reagan-National Airport?

Currently, August is the cheapest month in which you can book a flight from Louisville to Washington, D.C. Reagan-National Airport (average of $196). Flying from Louisville to Washington, D.C. Reagan-National Airport in March is currently the most expensive (average of $341). 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 DCA?

Find hourly flight availability from Louisville to Reagan-National. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 23, 2026.

One of the essential ways to save on airfare from Louisville to Washington, D.C. Reagan-National Airport is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 16% on airfare.

How much does it cost to fly round-trip from Louisville to Washington, D.C. Reagan-National Airport?

Reviews of airlines servicing Reagan-National

Get insights into the airlines that provide service to Reagan-National. 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 Reagan-National. Reviews last updated April 23, 2026.
See what other customers who have flown with Delta and American Airlines from Louisville to Washington, D.C. Reagan-National Airport 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
8,438 reviews

Boarding

8.1

Food

7.2

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,438 reviews
Delta
7.9
Good
8,438 reviews

Boarding

8.1

Food

7.2

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.1
Good
11,659 reviews
Delta
7.9
Good
8,438 reviews

Boarding

8.1

Food

7.2

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

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

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

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

    There are many flights that can get you from Louisville to Washington, D.C. Reagan-National Airport in 1h 50m. Fly via American Airlines or Delta to get the fastest option. Louisville and Washington, D.C. Reagan-National Airport are separated by a distance of 472 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Currently priced at $189, American Airlines will fly you from Louisville to Washington, D.C. Reagan-National Airport and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Delta for as low as $208. American Airlines is priced at 32% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Louisville to Washington, D.C. Reagan-National Airport one-way?

    The cheapest airlines for a one-way flight from Louisville to Washington, D.C. Reagan-National Airport are American Airlines ($89), Delta ($98), and Southwest ($104).

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

    Before booking your flight to Washington, D.C. Reagan-National Airport from Louisville, check out the most reliable airlines to get you to your destination on time: Envoy Air (100%), American Airlines (74%), Republic Airways( 69%).

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

    On average you can expect to pay $288 for a flight from Louisville to Washington, D.C. Reagan-National Airport. The cheapest flight overall is $112 while the most popular route, (Louisville Intl - Washington, D.C. Reagan-National) is currently priced at $208.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Louisville to Washington, D.C. Reagan-National Airport (average of $196). Flying from Louisville to Washington, D.C. Reagan-National Airport in March is currently the most expensive (average of $341). 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 Washington, D.C. Reagan-National Airport?

Book flights to Washington, D.C. Reagan-National Airport if you plan to visit one of these locations
Alexandria
Tysons
Owings Mills
Springfield
Arlington
Woodbridge
Silver Spring
Herndon
Rockville
Hyattsville
Fredericksburg
Hanover
Laurel
Manassas
Largo
Upper Marlboro
Waldorf
Bowie
Clinton
Hunt Valley

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Top 2 airlines flying from Louisville to Reagan-National

Discover the top 2 airlines that operate flights from Louisville to Reagan-National. 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 23, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$189Average$279FlexibilityNo cancel feeOn-time71%
DeltaCheapest$208Average$388FlexibilityNo cancel feeOn-timeN/A

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