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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 10/29. Fares are subject to change and may not be available on all flights or dates of travel.
SDF ā€” DCA
Sep 3 ā€” Sep 101
Thu 9/3
Thu 9/10
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 January or August, booked 81 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 August 4, 2026.

This American Airlines deal was found by Cheapflights users on 7/30. Clicking the ā€œPick Datesā€ button in this card will allow you to select your dates and further customize your flight criteria. From there, click ā€œFind dealsā€, make sure American Airlines is selected, and click ā€œCompare selectedā€ under the list of providers to see comparable flight deals.
Wed 8/263:21 pm
SDF
-
DCA
Nonstop1h 51m
American Airlines
Wed 9/212:59 pm
DCA
-
SDF
Nonstop1h 52m
American Airlines
Deal found 7/30$171
This Southwest deal was found by Cheapflights users on 7/30. Clicking the ā€œPick Datesā€ button in this card will allow you to select your dates and further customize your flight criteria. From there, click ā€œFind dealsā€, make sure Southwest is selected, and click ā€œCompare selectedā€ under the list of providers to see comparable flight deals.
Thu 10/297:50 pm
SDF
-
DCA
1 stop3h 40m
Southwest
Mon 11/29:00 am
DCA
-
SDF
1 stop6h 25m
Southwest
Deal found 7/30$186
This Southwest deal was found by Cheapflights users on 7/30. Clicking the ā€œPick Datesā€ button in this card will allow you to select your dates and further customize your flight criteria. From there, click ā€œFind dealsā€, make sure Southwest is selected, and click ā€œCompare selectedā€ under the list of providers to see comparable flight deals.
Tue 9/296:45 pm
SDF
-
DCA
1 stop4h 20m
Southwest
Tue 10/66:05 am
DCA
-
SDF
1 stop9h 10m
Southwest
Deal found 7/30$191
This Southwest deal was found by Cheapflights users on 7/30. Clicking the ā€œPick Datesā€ button in this card will allow you to select your dates and further customize your flight criteria. From there, click ā€œFind dealsā€, make sure Southwest is selected, and click ā€œCompare selectedā€ under the list of providers to see comparable flight deals.
Thu 8/203:20 pm
SDF
-
DCA
2 stops8h 00m
Southwest
Mon 8/246:00 am
DCA
-
SDF
2 stops7h 05m
Southwest
Deal found 7/30$201
This American Airlines deal was found by Cheapflights users on 7/30. Clicking the ā€œPick Datesā€ button in this card will allow you to select your dates and further customize your flight criteria. From there, click ā€œFind dealsā€, make sure American Airlines is selected, and click ā€œCompare selectedā€ under the list of providers to see comparable flight deals.
Thu 11/195:48 pm
SDF
-
DCA
Nonstop1h 47m
American Airlines
Mon 11/233:42 pm
DCA
-
SDF
Nonstop2h 08m
American Airlines
Deal found 7/30$207
This Delta deal was found by Cheapflights users on 7/30. Clicking the ā€œPick Datesā€ button in this card will allow you to select your dates and further customize your flight criteria. From there, click ā€œFind dealsā€, make sure Delta is selected, and click ā€œCompare selectedā€ under the list of providers to see comparable flight deals.
Mon 11/235:58 pm
SDF
-
DCA
1 stop4h 22m
Delta
Wed 12/29:40 am
DCA
-
SDF
1 stop4h 34m
Delta
Deal found 7/30$212
This American Airlines deal was found by Cheapflights users on 7/30. Clicking the ā€œPick Datesā€ button in this card will allow you to select your dates and further customize your flight criteria. From there, click ā€œFind dealsā€, make sure American Airlines is selected, and click ā€œCompare selectedā€ under the list of providers to see comparable flight deals.
Tue 9/296:00 am
SDF
-
DCA
Nonstop1h 44m
American Airlines
Tue 10/68:35 am
DCA
-
SDF
Nonstop2h 08m
American Airlines
Deal found 7/30$215
This American Airlines deal was found by Cheapflights users on 7/31. Clicking the ā€œPick Datesā€ button in this card will allow you to select your dates and further customize your flight criteria. From there, click ā€œFind dealsā€, make sure American Airlines is selected, and click ā€œCompare selectedā€ under the list of providers to see comparable flight deals.
Thu 9/36:11 am
SDF
-
DCA
Nonstop1h 49m
American Airlines
Sat 9/58:23 am
DCA
-
SDF
Nonstop2h 02m
American Airlines
Deal found 7/31$217
This American Airlines deal was found by Cheapflights users on 7/30. Clicking the ā€œPick Datesā€ button in this card will allow you to select your dates and further customize your flight criteria. From there, click ā€œFind dealsā€, make sure American Airlines is selected, and click ā€œCompare selectedā€ under the list of providers to see comparable flight deals.
Sun 9/206:00 am
SDF
-
DCA
Nonstop1h 44m
American Airlines
Wed 1/271:59 pm
DCA
-
SDF
Nonstop2h 03m
American Airlines
Deal found 7/30$218
This Southwest deal was found by Cheapflights users on 7/30. Clicking the ā€œPick Datesā€ button in this card will allow you to select your dates and further customize your flight criteria. From there, click ā€œFind dealsā€, make sure Southwest is selected, and click ā€œCompare selectedā€ under the list of providers to see comparable flight deals.
Sat 12/59:10 am
SDF
-
DCA
2 stops9h 00m
Southwest
Wed 12/96:10 am
DCA
-
SDF
2 stops6h 05m
Southwest
Deal found 7/30$222

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 August 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$171
(American Airlines)

One-way from

$91
(Southwest)

Popular in

July

Cheapest in

January

Average price

$238

Good round-trip deal

$264 or less

Good one-way deal

$247 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. 6% potential increase in price ($21 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 August 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

Ā 
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 August 4, 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

LouisvilleWashington, D.C.

SDF - DCA

SDFDCA

Louisville Intl

Wed 8/26

1:17 pm-5:28 pm

1 stop4h 11m

Washington, D.C. Reagan-National

Wed 9/2

6:10 am-9:54 am

1 stop3h 44m

$191

LouisvilleWashington, D.C.

SDF - DCA

SDFDCA

Louisville Intl

Wed 9/23

3:43 pm-8:37 pm

1 stop4h 54m

Washington, D.C. Reagan-National

Wed 9/30

6:10 am-9:52 am

1 stop3h 42m

$191

LouisvilleWashington, D.C.

SDF - DCA

SDFDCA

Louisville Intl

Tue 8/25

10:50 am-6:25 pm

2 stops7h 35m

Washington, D.C. Reagan-National

Thu 8/27

6:00 am-1:05 pm

2 stops7h 05m

$201

LouisvilleWashington, D.C.

SDF - DCA

SDFDCA

Louisville Intl

Fri 8/28

2:15 pm-7:50 pm

1 stop5h 35m

Washington, D.C. Reagan-National

Sat 8/29

1:00 pm-5:25 pm

1 stop4h 25m

$235

LouisvilleWashington, D.C.

SDF - DCA

SDFDCA

Louisville Intl

Thu 9/3

2:15 pm-7:50 pm

1 stop5h 35m

Washington, D.C. Reagan-National

Sun 9/6

4:00 pm-8:55 pm

1 stop4h 55m

$237

LouisvilleWashington, D.C.

SDF - DCA

SDFDCA

Louisville Intl

Thu 10/29

5:59 pm-10:49 pm

1 stop4h 50m

Washington, D.C. Reagan-National

Mon 11/2

7:40 pm-11:59 pm

1 stop4h 19m

$247
Quickest round-trip

LouisvilleWashington, D.C.

SDF - DCA

SDFDCA

Louisville Intl

Thu 9/3

7:55 am-11:28 am

1 stop3h 33m

Washington, D.C. Reagan-National

Thu 9/10

6:10 am-9:52 am

1 stop3h 42m

$247

LouisvilleWashington, D.C.

SDF - DCA

SDFDCA

Louisville Intl

Tue 10/13

4:00 pm-10:55 pm

2 stops6h 55m

Washington, D.C. Reagan-National

Sat 10/17

6:55 am-2:55 pm

2 stops8h 00m

$257

LouisvilleWashington, D.C.

SDF - DCA

SDFDCA

Louisville Intl

Thu 9/10

2:15 pm-10:30 pm

2 stops8h 15m

Washington, D.C. Reagan-National

Mon 9/14

6:05 am-1:05 pm

2 stops7h 00m

$257

LouisvilleWashington, D.C.

SDF - DCA

SDFDCA

Louisville Intl

Sun 8/30

7:05 am-11:27 am

1 stop4h 22m

Washington, D.C. Reagan-National

Wed 9/9

8:00 am-12:20 pm

1 stop4h 20m

$263

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/2

Showing 1-10 of 21 resultsSorted by cheapest first
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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 August.
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?

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 80 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, January is the cheapest month in which you can book a flight from Louisville to Washington, D.C. Reagan-National Airport (average of $219). Flying from Louisville to Washington, D.C. Reagan-National Airport in July is currently the most expensive (average of $339). 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 August 4, 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 in the evening tend to be the most expensive. A flight in the afternoon could potentially save you up to 11% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from Louisville to Reagan-National. Price data was last updated on August 1, 2026.

Travelers seeking maximum savings on their Louisville to Washington, D.C. Reagan-National Airport flight should consider departing on Tuesday evenings when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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

Airfare is below average for this route at the moment.

Louisville to Washington, D.C. Reagan-National Airport flights typically cost between $207 and $264 in August.
The cheapest round-trip price found within the last 5 days was $171 on American Airlines (Aug 26-Sep 2).

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 August 4, 2026.
See what other customers who have flown with 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.
American Airlines
7.1
Good
11,842 reviews

Crew

7.9

Food

6.4

Overall

7.1

Boarding

7.5

Comfort

7.2

Entertainment

6.8

Reviews

1 / 20
8.0
Excellent

Olwin,Jul 2026

MCO - DCA

The flight was great overall. But we need better food on flights and the baggage fees are too high.
American Airlines
7.1
Good
11,842 reviews
American Airlines
7.1
Good
11,842 reviews

Crew

7.9

Food

6.4

Overall

7.1

Boarding

7.5

Comfort

7.2

Entertainment

6.8

Reviews

1 / 20
8.0
Excellent

Olwin,Jul 2026

MCO - DCA

The flight was great overall. But we need better food on flights and the baggage fees are too high.

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 1 outbound flight to Washington, D.C. Reagan-National per day. You should also have plenty of airline options to choose from since 1 airline has flights from the Louisville airport to Washington, D.C. Reagan-National. It is only a 5.3 mi journey to Louisville Intl (SDF) from Louisvilleā€™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 4h 11m. Fly via Delta or Southwest 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 is the cheapest airline to fly 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. American Airlines is priced at 33% lower than the current average price of a flight leaving 3 months from now.

  • 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: Republic Airways (72%), American Airlines (64%), Alaska Airlines( 56%).

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

    On average you can expect to pay $442 for a flight from Louisville to Washington, D.C. Reagan-National Airport. The cheapest flight overall is $207 while the most popular route, (Louisville Intl - Washington, D.C. Reagan-National) is currently priced at $227.

  • 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, January is the cheapest month in which you can book a flight from Louisville to Washington, D.C. Reagan-National Airport (average of $219). Flying from Louisville to Washington, D.C. Reagan-National Airport in July is currently the most expensive (average of $339). 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
Owings Mills
Arlington
Tysons
Springfield
Lanham
Reston
Herndon
Rockville
Hyattsville
Fredericksburg
Falls Church
Hanover
Laurel
Clinton
Oxon Hill
Hunt Valley
Woodbridge
Silver Spring
Largo

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Top airline flying from Louisville to Reagan-National

Discover the top airline 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 August 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$189Average$283FlexibilityNo cancel feeOn-time71%

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