Title: Cheap Flights from Washington to Louisville (DCA to SDF) - Expedia.co.uk ![The Louisville, Kentucky skyline with pedestrian walkway in front](https://images.trvl-media.com/place/603002/bb7aa867-4a7a-49ff-b758-10a472246889.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/603002/bb7aa867-4a7a-49ff-b758-10a472246889.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights from Washington (DCA) to Louisville (SDF) - [Return](?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 Ronald Reagan National Airport (DCA) to Louisville International Airport (SDF) - ![American Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.co.uk/Flights-Search?leg1=from:dca,to:sdf,departure:30/10/2025TANYT&leg2=from:sdf,to:dca,departure:06/11/2025TANYT&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.co.uk/Flights-Search?leg1=from:dca,to:sdf,departure:30/10/2025TANYT&leg2=from:sdf,to:dca,departure:06/11/2025TANYT&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.co.uk/Flights-Search?leg1=from:dca,to:sdf,departure:30/10/2025TANYT&leg2=from:sdf,to:dca,departure:06/11/2025TANYT&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.co.uk/Flights-Search?leg1=from:dca,to:sdf,departure:30/10/2025TANYT&leg2=from:sdf,to:dca,departure:06/11/2025TANYT&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 25% 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.co.uk/login) ## Find the cheapest month to fly from Washington (DCA) to Louisville (SDF) ### August is typically the cheapest month to fly From £102 - £226 per traveller. Flight from Washington to Louisville route information | Origin airport | Ronald Reagan Washington National | | --- | --- | | Destination airport | Louisville Intl. | | Distance | 755 km | | Average flight time | 1 hour 57 mins | ## Compare flights from Washington to Louisville easily and book with confidence For travelling on business or for pleasure, Expedia makes it easy to book your flights from Washington to Louisville. Operating between them flights per day, airlines cover the route. And fly direct, getting you to Louisville Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Ronald Reagan Washington National to Louisville Intl..   To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights.  Grab a great deal on your flight from Ronald Reagan Washington National (DCA) to Louisville Intl. (SDF) The easiest way to view the best deals on flights from Washington to Louisville today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Ronald Reagan Washington National to Louisville Intl. start at just and range up to .   To find an even better deal, try   - being flexible on your dates – midweek flights can be cheaper - looking for other airports near Washington and Louisville - booking your flight during , the cheapest month on this route - varying your flight times – early morning and late at night are sometimes cheaper  Why you should book your Washington to Louisville flight with Expedia! We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Ronald Reagan Washington National to Louisville Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.   Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.   ## Frequently asked questions ### How much is a flight from Ronald Reagan Washington National Airport (DCA) to SDF? > The lowest price advertised for a round-trip journey between National Airport and SDF is . But you better act quick. This price is based on fares quoted within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from DCA to Louisville Muhammad Ali Intl. Airport? > The majority of flights can be cancelled online, but whether or not you are charged a fee all comes down to your airline. If you do have to cancel your holiday, follow the instructions in the [Customer Service Portal](https://www.expedia.co.uk/service/?langid=1033). ### How do I find cheap flights from DCA to Louisville Intl. Airport (SDF) that have flexible change policies? > Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Ronald Reagan Washington National Airport (DCA) to SDF flights, you'll see a "no change fees" filter for you to select. ### How far is the flight from National Airport to Louisville Muhammad Ali Intl. Airport? > With a flight distance of 760 kilometres, it's only a hop from DCA to Louisville Muhammad Ali Intl. Airport. It might be a quick journey, but it's still worth bringing along a good book to read. ### Which airlines fly direct from Ronald Reagan Washington National Airport (DCA) to Louisville Intl. Airport (SDF)? > Flying straight from National Airport to Louisville Intl. Airport (SDF) is a cinch with American Airlines (AA). This leading airline offers 82 flights each month. ### Are DCA to Louisville Intl. Airport (SDF) flight tickets cheaper when they're purchased at the last minute? > Late planners can sometimes nab a bargain, with some of the cheapest airfares from DCA to Louisville Intl. Airport (SDF) popping up a few weeks before the departure date. If you'd rather book ahead of time, Expedia compares and updates all the best flight deals regularly — as early as 12 months in advance in some cases. 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