Title: Cheap Flights from Louisville (SDF) to Washington (DCA) - Expedia.ca ![Washington DC in Spring](https://images.trvl-media.com/place/3763/58eb1a51-e7f1-4f17-88af-21174d495e42.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/3763/58eb1a51-e7f1-4f17-88af-21174d495e42.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights from Louisville (SDF) to Washington (DCA) - [Roundtrip](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only ## Popular airlines from Louisville International Airport (SDF) to Ronald Reagan National Airport (DCA) - ![American Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:sdf,to:dca,departure:06/11/2025TANYT&leg2=from:dca,to:sdf,departure:13/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![Delta](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_DL.svg) Delta [](https://www.expedia.ca/Flights-Search?leg1=from:sdf,to:dca,departure:06/11/2025TANYT&leg2=from:dca,to:sdf,departure:13/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![United](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United [](https://www.expedia.ca/Flights-Search?leg1=from:sdf,to:dca,departure:06/11/2025TANYT&leg2=from:dca,to:sdf,departure:13/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ![Southwest Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_WN.svg) Southwest Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:sdf,to:dca,departure:06/11/2025TANYT&leg2=from:dca,to:sdf,departure:13/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"WN"}}]) ![notification illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* ![deals illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 30% on select hotels after you book a flight\* ![trophy illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.ca/login) ## Find the cheapest month to fly from Louisville (SDF) to Washington (DCA) ### August is typically the cheapest month to fly From CA $191 - CA $395 per traveller. ## Frequently asked questions ### How much is a flight from Louisville Muhammad Ali Intl. Airport to Ronald Reagan Washington National Airport (DCA)? > If you're planning on travelling from Louisville Intl. Airport (SDF) to Ronald Reagan Washington National Airport (DCA), round-trip journeys start from . This figure is based on fares advertised within the last 7 days on Expedia for flights departing within the next year, so don't hang around. Book today and save yourself money and time. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from SDF to Ronald Reagan Washington National Airport (DCA)? > We get that your situation can change unexpectedly, so we've made it as easy as possible for you to cancel your flight online. Just visit the [Customer Service Portal](https://www.expedia.ca/helpcenter) and follow the instructions. ### How do I find cheap flights from SDF to National Airport that have flexible change policies? > Plenty of airlines will allow you to reschedule your flight at no extra charge. All you pay is the cost difference between the two flights. When looking for SDF to DCA flights, you'll find a "No change fees" filter for you to select. ### How many hours is the flight from Louisville Intl. Airport (SDF) to National Airport? > Get comfortable, choose a movie and 4 hours and 13 minutes will fly by in the blink of an eye. That's how long it takes to reach National Airport from Louisville Muhammad Ali Intl. Airport. ### How far is the flight from SDF to DCA? > With a flight distance of 760 kilometres, it's only a short hop from Louisville Muhammad Ali Intl. Airport to Ronald Reagan Washington National Airport (DCA). It might be a quick flight, but it's still worth packing something to keep you busy on board. ### Which airlines fly direct from SDF to National Airport? > Flying nonstop from SDF to National Airport is a breeze with American Airlines (AA). This top carrier offers 91 flights each month. ### Are SDF to Ronald Reagan Washington National Airport (DCA) flight tickets cheaper when they're purchased at the last minute? > Late planners can sometimes nab a bargain, with some super cheap fares from Louisville Muhammad Ali Intl. Airport to Ronald Reagan Washington National Airport (DCA) appearing a few weeks before the date of departure. If you'd rather book ahead of time, Expedia compares and updates the best flight deals frequently — as early as a year in advance in some cases. It depends on the carrier though, as not all airlines release prices that far in advance. ## Travel information | Origin airport | Louisville Intl. | | --- | --- | | Destination airport | Ronald Reagan Washington National | | Distance | 755 km | | Average flight time | 2 hours 2 mins | ## Book with confidence ### Louisville to Washington Flights **The easy way to book your flights from Louisville to Washington**  With Expedia, it’s simple to find and book flights to Washington from Louisville whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from airlines that cover this route. There are nonstop flights to Ronald Reagan Washington National, too.   Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Louisville to Washington today, tomorrow, or this week.   **Save dollars with cheap flights from Louisville Intl., SDF to Ronald Reagan Washington National, DCA**  Sort your search results by price to find great deals on your flight from Louisville to Washington—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Washington from Louisville currently is just rising to .   Here are more money-saving tips:  - Fly in when flight prices are normally at their lowest  - Book about a month to 6 weeks before you travel for the best prices to Washington   - Avoid peak season and weekends when flights can cost more - Early morning and late-night flights are sometimes cheaper, so try varying your travel times  - One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free!  **Reasons to choose Expedia for your flight to Washington from Louisville**  Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. 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