$99 Cheap Delta flights Washington (DCA) to Louisville (SDF)

View $99 flight on Tue, Sep 16, 2025Opens in a new window

$99 Cheap Delta flights Washington (DCA) to Louisville (SDF)

Prices were available within the past 7 days and start at $99 for one-way flights and $189 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Sep 2 - Wed, Sep 10
DCA
Washington
SDF
Louisville
$189 Roundtrip, found 2 days ago
$189
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Sep 2 from Washington to Louisville, returning Wed, Sep 10, priced at $189 found 2 days ago
Delta
Fri, Sep 5 - Fri, Sep 12
DCA
Washington
SDF
Louisville
$214 Roundtrip, found 3 hours ago
$214
Roundtrip
found 3 hours ago
Select Delta flight, departing Fri, Sep 5 from Washington to Louisville, returning Fri, Sep 12, priced at $214 found 3 hours ago
Delta
Tue, Sep 30 - Wed, Oct 8
DCA
Washington
SDF
Louisville
$222 Roundtrip, found 1 day ago
$222
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Sep 30 from Washington to Louisville, returning Wed, Oct 8, priced at $222 found 1 day ago
Delta
Sat, Aug 30 - Fri, Sep 5
DCA
Washington
SDF
Louisville
$242 Roundtrip, found 8 hours ago
$242
Roundtrip
found 8 hours ago
Select Delta flight, departing Sat, Aug 30 from Washington to Louisville, returning Fri, Sep 5, priced at $242 found 8 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
Popular airline
Delta
Distance
472 mi
Average flight time
1 hour 50 mins

Frequently asked questions

How much is a Delta Air Lines flight from Ronald Reagan Washington National Airport (DCA) to Louisville Intl. Airport (SDF)?
Finding cheap one-way Delta Air Lines flights from DCA to SDF from $99 on Expedia couldn't be easier — just filter by "Price (lowest to highest)." Alternatively, check out our affordable round-trip fares from $189 for your next exciting adventure.**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.
What is the cheapest month to fly from DCA to SDF with Delta Air Lines?
January is one of the cheapest months to travel to Louisville with Delta Air Lines. You could also find fantastic deals on return and one-way tickets in December.
What is the cheapest time to book flights from Ronald Reagan Washington National Airport (DCA) to Louisville Intl. Airport (SDF) with Delta Air Lines?
Search for affordable Delta Air Lines flights from Ronald Reagan Washington National Airport (DCA) to Louisville Intl. Airport (SDF) one to three months ahead of your day of departure. 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. Regardless of fare type and journey, the ideal day to book a domestic flight is generally 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.
Does Delta Air Lines fly nonstop from Ronald Reagan Washington National Airport (DCA) to Louisville Intl. Airport (SDF)?
Enter your dates, press search and select "Nonstop" on Expedia to find any direct flights from DCA to SDF with Delta Air Lines or other airlines.
What is the earliest Delta Air Lines flight from DCA to SDF?
Browse Delta Air Lines's earliest flights from DCA to SDF by using our "Morning" and "Early Morning" filters. Not only will you arrive at your destination sooner, early departures are also 20% less likely to be canceled.**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.
What airports does Delta Air Lines fly into in Louisville?
Get on a Delta Air Lines flight from Ronald Reagan Washington National Airport (DCA) to Louisville, and you're most likely to arrive at Louisville Intl. Airport (SDF). This is the airline's main hub in this destination.
Why fly with Delta Air Lines from DCA to SDF?
With a rewarding loyalty program and an excellent in-flight experience, Delta Air Lines is a favorite for many travelers flying from DCA to SDF. Also, if you're a Delta SkyMiles and One Key™ member booking with Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles, which you can put toward future getaways.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my Delta Air Lines flight from Ronald Reagan Washington National Airport (DCA) to Louisville Intl. Airport (SDF)?
Depending on the type of fare you purchased, a fee is typically charged if you cancel or change your flight more than 24 hours after it has been confirmed. To find flexible fares, select our "Changes included" and "No cancel fee" boxes when you look for flights. To learn more about changing or canceling your reservation, visit "Trips," select your flight and click on "Manage Booking."

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*Available to One Key members.