$89 Cheap American Airlines flights Washington (DCA) to Louisville (SDF)

Make use of the "Price (lowest to highest)" filter on Expedia to search for cheap American Airlines return flights from $177 from DCA to SDF. Affordable one-way fares from $89 are also on offer.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Look for cheap American Airlines flights from Ronald Reagan Washington National Airport (DCA) to Louisville Intl. Airport (SDF) one to three months ahead of your departure date. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. No matter the fare type and journey, the best day of the week to book a domestic flight is usually Sunday and the most expensive is typically Monday. Passengers who book on a Sunday can save 6% on average compared to those who book on a Monday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.

The first American Airlines flight from DCA to SDF departs at 8:33AM UTC-5, touching down at 10:44AM UTC-5. If you'd like to jet off later in the day, the last American Airlines flight leaves DCA at 7:54PM UTC-5 and touches down at SDF at 9:55PM UTC-5. Flying before noon is generally a smart choice as morning flights tend to experience fewer cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.