$90 Cheap Flights from Washington (DCA) to Louisville (SDF)

View $90 flight on Sat, May 24, 2025Opens in a new window

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Find available prices by choosing your travel dates.

Cheap Flights from Washington to Louisville (DCA-SDF)

Prices were available within the past 7 days and start at $90 for one-way flights and $184 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sat, May 24 - Tue, May 27
DCA
Washington
SDF
Louisville
$184 Roundtrip, found 2 hours ago
$184
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Sat, May 24 from Washington to Louisville, returning Tue, May 27, priced at $184 found 2 hours ago
American Airlines
Sat, Sep 13 - Sat, Sep 20
DCA
Washington
SDF
Louisville
$189 Roundtrip, found 13 hours ago
$189
Roundtrip
found 13 hours ago
Select American Airlines flight, departing Sat, Sep 13 from Washington to Louisville, returning Sat, Sep 20, priced at $189 found 13 hours ago
American Airlines
Wed, May 28 - Tue, Jun 3
DCA
Washington
SDF
Louisville
$194 Roundtrip, found 19 hours ago
$194
Roundtrip
found 19 hours ago
Select American Airlines flight, departing Wed, May 28 from Washington to Louisville, returning Tue, Jun 3, priced at $194 found 19 hours ago
American Airlines
Sun, May 25 - Tue, May 27
DCA
Washington
SDF
Louisville
$195 Roundtrip, found 3 days ago
$195
Roundtrip
found 3 days ago
Select American Airlines flight, departing Sun, May 25 from Washington to Louisville, returning Tue, May 27, priced at $195 found 3 days ago
American Airlines
Fri, May 30 - Sat, May 31
DCA
Washington
SDF
Louisville
$199 Roundtrip, found 10 hours ago
$199
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Fri, May 30 from Washington to Louisville, returning Sat, May 31, priced at $199 found 10 hours ago
American Airlines
Wed, Jun 11 - Sat, Jun 14
DCA
Washington
SDF
Louisville
$200 Roundtrip, found 2 days ago
$200
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, Jun 11 from Washington to Louisville, returning Sat, Jun 14, priced at $200 found 2 days ago
Southwest Airlines
Wed, May 28 - Tue, Jun 3
DCA
Washington
SDF
Louisville
$204 Roundtrip, found 19 hours ago
$204
Roundtrip
found 19 hours ago
Select Southwest Airlines flight, departing Wed, May 28 from Washington to Louisville, returning Tue, Jun 3, priced at $204 found 19 hours ago
American Airlines
Sat, May 24 - Tue, May 27
DCA
Washington
SDF
Louisville
$204 Roundtrip, found 2 hours ago
$204
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Sat, May 24 from Washington to Louisville, returning Tue, May 27, priced at $204 found 2 hours ago
United
Sat, Sep 13 - Sat, Sep 20
DCA
Washington
SDF
Louisville
$209 Roundtrip, found 13 hours ago
$209
Roundtrip
found 13 hours ago
Select United flight, departing Sat, Sep 13 from Washington to Louisville, returning Sat, Sep 20, priced at $209 found 13 hours ago
Delta
Thu, May 8 - Wed, May 14
DCA
Washington
SDF
Louisville
$214 Roundtrip, found 18 hours ago
$214
Roundtrip
found 18 hours ago
Select Delta flight, departing Thu, May 8 from Washington to Louisville, returning Wed, May 14, priced at $214 found 18 hours ago
Flights from Washington (DCA) to Louisville (SDF)
Origin airport
Ronald Reagan Washington National
Destination airport
Louisville Intl.
Airlines serving
American Airlines, Delta, Southwest Airlines, United
Roundtrip price
$184
Distance
472 mi

Washington to Louisville Flights

The cheapest times to fly from Washington to Louisville

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Washington to Louisville are during the month of May. You can find some of the cheapest flights from Washington to Louisville with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Washington to Louisville

Sunday is one of the best days to book for cheap flights from Washington to Louisville: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Washington to Louisville

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Washington to Louisville in 2025. You can also book with separate airlines for your outbound and return journeys, from $90 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Washington to Louisville flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Washington to Louisville airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How much does a flight from Ronald Reagan Washington National Airport (DCA) to Louisville Intl. Airport (SDF) cost?
Pick up cheap return flights starting at $184 from Ronald Reagan Washington National Airport (DCA) to Louisville Intl. Airport (SDF). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a American Airlines flight leaving DCA on May 10 2025 and touching down at SDF. The price was last updated on April 22 2025 and has not changed since.
What is the cheapest month to fly from DCA to SDF?
The cheapest flights from DCA to SDF are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Ronald Reagan Washington National Airport (DCA) to Louisville Intl. Airport (SDF)?
Board a nonstop flight with American Airlines and fly straight from Ronald Reagan Washington National Airport (DCA) to Louisville Intl. Airport (SDF).
What is the cheapest airline that flies from DCA to SDF?
Right now, the cheapest airline offering one-way flights from DCA to SDF is American Airlines. You can take off on this route from $90. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from DCA on May 31 2025. Prices were last updated on April 22 2025 and have not changed since.
How many flights per day from Ronald Reagan Washington National Airport (DCA) to Louisville Intl. Airport (SDF)?
Every day on average, 3 direct flights operate from Ronald Reagan Washington National Airport (DCA) to Louisville Intl. Airport (SDF). Select the departure time that best suits your plans.
What are the most popular departure times for flights from Ronald Reagan Washington National Airport (DCA) to Louisville Intl. Airport (SDF)?
The 8 AM departures from DCA to SDF are the busiest. These flights can come with a higher price due to their popularity. If you want to save money, book during off-peak hours.
What day of the week has the most flights from DCA to SDF?
Jet off on a Friday if you’re after the largest selection of flights from Ronald Reagan Washington National Airport (DCA) to Louisville Intl. Airport (SDF).
What is the earliest flight from Ronald Reagan Washington National Airport (DCA) to Louisville Intl. Airport (SDF)?
Ronald Reagan Washington National Airport (DCA)’s first flight to Louisville Intl. Airport (SDF) is at approximately 8:33AM UTC-5. With a total journey time of 2h 11m, you’ll arrive at around 10:44AM UTC-5.
How long does it take to fly from Ronald Reagan Washington National Airport (DCA) to Louisville Intl. Airport (SDF)?
Typically, it takes 2 hours and 2 minutes to travel the 470 mi from DCA to SDF.
What airline has the least delays from DCA to SDF?
Consider traveling with American Airlines if you’d like to go straight from Ronald Reagan Washington National Airport (DCA) to Louisville Intl. Airport (SDF) without any delays. This carrier has the strongest track record for punctuality, with an on-time performance of 81%. Want to be updated if anything changes? You can check your flight status using the Expedia App.
What is the best time to fly from Ronald Reagan Washington National Airport (DCA) to Louisville Intl. Airport (SDF)?
To avoid potential delays on the Ronald Reagan Washington National Airport (DCA) to Louisville Intl. Airport (SDF) route, travel before 3 PM. Flights after this time are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
What airports do you fly into for Louisville from Ronald Reagan Washington National Airport (DCA)?
If you’re on a direct flight from Ronald Reagan Washington National Airport (DCA) to Louisville, Louisville Intl. Airport (SDF) is the only airport you can land at.
Is it cheaper to buy a plane ticket from Ronald Reagan Washington National Airport (DCA) to Louisville Intl. Airport (SDF) last-minute?
Waiting until just before your trip to book a flight from DCA to SDF often results in higher prices. While you may come across some last-minute offers, there’s no guarantee. Be flexible with your itinerary to maximize your chances of scoring a bargain.
Is it cheaper to book a DCA to SDF flight and hotel package?
You’ll typically save money by booking a DCA to SDF flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it’s simple to manage everything in one convenient place. Once you’ve selected your ideal flights and accommodations, you can add extras like tours, activities and car rentals.
Can I cancel or change the date of my flight from Ronald Reagan Washington National Airport (DCA) to Louisville Intl. Airport (SDF)?
In most instances, you’re able to reschedule or cancel your DCA to SDF flight. However, additional fees may apply, especially if your booking was made over 24 hours ago. Check your itinerary for the airline’s policies and fees on flight changes, or if you need more information, visit our Customer Service portal.

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*Available to One Key members.