HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Reagan-National

$81+ 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 2/17. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — DCA
Feb 7 — Feb 141
Sat 2/7
Sat 2/14
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Louisville to Reagan-National with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.
Cheapflights Tip: The best prices from Louisville Intl to Washington, D.C. Reagan-National are usually found in August or February, booked 82 days in advance, depart on a Thursday or Wednesday and return on a Tuesday

Cheap 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 January 8, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$189
(American Airlines)

One-way from

$81
(Southwest)

Popular in

October

Cheapest in

August

Average price

$249

Good round-trip deal

$204 or less

Good one-way deal

$268 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. 0% potential increase in price ($1 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 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

Find 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 January 8, 2026.

This American Airlines deal was found by Cheapflights users on 1/7. 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 2/75:26 pmSDF - DCA
Nonstop1h 34mAmerican Airlines
Wed 2/117:31 pmDCA - SDF
Nonstop1h 59mAmerican Airlines
Deal found 1/7$189
This Southwest deal was found by Cheapflights users on 1/8. 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 2/176:25 amSDF - DCA
1 stop5h 35mSouthwest
Tue 3/36:00 amDCA - SDF
1 stop6h 15mSouthwest
Deal found 1/8$190
This American Airlines deal was found by Cheapflights users on 1/7. 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 1/254:32 pmSDF - DCA
Nonstop1h 46mAmerican Airlines
Sat 1/311:52 pmDCA - SDF
Nonstop2h 03mAmerican Airlines
Deal found 1/7$204
This Southwest deal was found by Cheapflights users on 1/7. 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 2/36:45 amSDF - DCA
1 stop6h 15mSouthwest
Wed 2/46:05 amDCA - SDF
1 stop6h 10mSouthwest
Deal found 1/7$207
This Delta deal was found by Cheapflights users on 1/6. 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 2/73:32 pmSDF - DCA
1 stop5h 00mDelta
Fri 2/136:05 amDCA - SDF
1 stop3h 59mDelta
Deal found 1/6$209
This American Airlines deal was found by Cheapflights users on 1/7. 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 1/2211:08 amSDF - DCA
Nonstop1h 44mAmerican Airlines
Sun 1/257:59 pmDCA - SDF
Nonstop2h 06mAmerican Airlines
Deal found 1/7$219
This Delta deal was found by Cheapflights users on 1/8. 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.
Sun 1/255:00 pmSDF - DCA
1 stop6h 10mDelta
Sat 1/317:00 amDCA - SDF
1 stop6h 54mDelta
Deal found 1/8$224
This American Airlines deal was found by Cheapflights users on 1/8. 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 2/176:00 amSDF - DCA
Nonstop1h 42mAmerican Airlines
Tue 3/33:21 pmDCA - SDF
1 stop7h 55mAmerican Airlines
Deal found 1/8$225
This American Airlines deal was found by Cheapflights users on 1/7. 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 2/76:00 amSDF - DCA
1 stop4h 50mAmerican Airlines
Sun 2/87:59 pmDCA - SDF
Nonstop2h 06mAmerican Airlines
Deal found 1/7$227
This Southwest deal was found by Cheapflights users on 1/8. 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 1/276:45 amSDF - DCA
1 stop6h 15mSouthwest
Thu 1/296:05 amDCA - SDF
1 stop6h 10mSouthwest
Deal found 1/8$228

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 January 8, 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

Louisville

Fly to

Reagan-National

Route

Depart

Return

Price

LouisvilleWashington, D.C.

SDF - DCA

SDFDCA

Louisville Intl

Tue 2/17

6:25 am-12:00 pm

1 stop5h 35m

Washington, D.C. Reagan-National

Tue 3/3

6:00 am-12:15 pm

1 stop6h 15m

$190

LouisvilleWashington, D.C.

SDF - DCA

SDFDCA

Louisville Intl

Tue 2/3

6:45 am-1:00 pm

1 stop6h 15m

Washington, D.C. Reagan-National

Wed 2/4

6:05 am-12:15 pm

1 stop6h 10m

$207

LouisvilleWashington, D.C.

SDF - DCA

SDFDCA

Louisville Intl

Tue 2/10

3:32 pm-7:32 pm

1 stop4h 00m

Washington, D.C. Reagan-National

Tue 2/17

6:59 am-11:27 am

1 stop4h 28m

$209

LouisvilleWashington, D.C.

SDF - DCA

SDFDCA

Louisville Intl

Sat 2/7

6:51 pm-10:57 pm

1 stop4h 06m

Washington, D.C. Reagan-National

Mon 2/16

1:45 pm-9:03 pm

1 stop7h 18m

$209

LouisvilleWashington, D.C.

SDF - DCA

SDFDCA

Louisville Intl

Fri 5/8

5:45 pm-11:23 pm

1 stop5h 38m

Washington, D.C. Reagan-National

Tue 5/12

10:00 am-1:38 pm

1 stop3h 38m

$209

LouisvilleWashington, D.C.

SDF - DCA

SDFDCA

Louisville Intl

Fri 2/13

3:33 pm-7:32 pm

1 stop3h 59m

Washington, D.C. Reagan-National

Tue 2/17

6:05 am-10:04 am

1 stop3h 59m

$209

LouisvilleWashington, D.C.

SDF - DCA

SDFDCA

Louisville Intl

Sat 2/7

5:47 pm-11:32 pm

1 stop5h 45m

Washington, D.C. Reagan-National

Sat 2/14

6:03 am-10:04 am

1 stop4h 01m

$209

LouisvilleWashington, D.C.

SDF - DCA

SDFDCA

Louisville Intl

Fri 2/13

3:33 pm-9:34 pm

1 stop6h 01m

Washington, D.C. Reagan-National

Sun 2/15

6:05 am-10:04 am

1 stop3h 59m

$209

LouisvilleWashington, D.C.

SDF - DCA

SDFDCA

Louisville Intl

Wed 2/4

6:53 pm-10:57 pm

1 stop4h 04m

Washington, D.C. Reagan-National

Sun 2/8

7:00 am-11:37 am

1 stop4h 37m

$209

LouisvilleWashington, D.C.

SDF - DCA

SDFDCA

Louisville Intl

Mon 2/9

3:32 pm-9:34 pm

1 stop6h 02m

Washington, D.C. Reagan-National

Sun 2/15

6:05 am-10:04 am

1 stop3h 59m

$209

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/7

Showing 1-10 of 22 results
1
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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Louisville-Washington, D.C. Reagan-National Airport flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 January 2, 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 81 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, October is the cheapest month in which you can book a flight from Louisville to Washington, D.C. Reagan-National Airport (average of $108). Flying from Louisville to Washington, D.C. Reagan-National Airport in June is currently the most expensive (average of $181). 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 January 8, 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 morning tend to be the most expensive. A flight at noon could potentially save you up to 6% on airfare.

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 January 8, 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
7.2
Good
11,094 reviews

Comfort

7.2

Food

6.4

Overall

7.2

Entertainment

6.9

Boarding

7.5

Crew

8.0

Reviews

1 / 20
10.0
Excellent

Jeremy,Dec 2025

OKC - CLT

Was an okay flight. Had extra seat empty beside me so was able to stretch a bit
American Airlines
7.2
Good
11,094 reviews
American Airlines
7.2
Good
11,094 reviews

Comfort

7.2

Food

6.4

Overall

7.2

Entertainment

6.9

Boarding

7.5

Crew

8.0

Reviews

1 / 20
10.0
Excellent

Jeremy,Dec 2025

OKC - CLT

Was an okay flight. Had extra seat empty beside me so was able to stretch a bit

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 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 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 4h. Fly via Southwest 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 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 29% 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 ($109).

  • 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 (93%), American Airlines (76%), Alaska Airlines( 62%).

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

    On average you can expect to pay $302 for a flight from Louisville to Washington, D.C. Reagan-National Airport. The cheapest flight overall is $128 while the most popular route, (Louisville Intl - Washington, D.C. Reagan-National) is currently priced at $209.

  • 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, October is the cheapest month in which you can book a flight from Louisville to Washington, D.C. Reagan-National Airport (average of $108). Flying from Louisville to Washington, D.C. Reagan-National Airport in June is currently the most expensive (average of $181). 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
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Silver Spring
Hanover
Fredericksburg
Linthicum Heights
Rockville
Laurel
Towson
Manassas
National Harbor
Bowie
Largo
McLean
Clinton
Cordova

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Louisville to Reagan-National

See prices for flight routes from nearby airports that may be better suited for you.
Nashville to Reagan-National flights
Nashville to Baltimore flights
Nashville to Dulles Intl flights
Cincinnati to Baltimore flights
Cincinnati to Reagan-National flights
Cincinnati to Dulles Intl flights
Louisville to Baltimore flights
Louisville to Dulles Intl flights
Knoxville to Dulles Intl flights
Knoxville to Reagan-National flights
Lexington to Dulles Intl flights
Lexington to Baltimore flights
Knoxville to Baltimore flights
Lexington to Reagan-National flights
Blountville to Dulles Intl flights
Blountville to Baltimore flights
Blountville to Reagan-National flights
Evansville to Dulles Intl flights
Evansville to Reagan-National flights
Evansville to Baltimore flights
Owensboro to Reagan-National flights

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 January 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$189Average$273FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.