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

View $99 flight on Thu, Aug 28, 2025Opens in a new window

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • one key icon

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

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

Prices were available within the past 7 days and start at $99 for one-way flights and $191 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, Aug 28 - Sun, Aug 31
SDF
Louisville
DCA
Washington
$191 Roundtrip, found 10 hours ago
$191
Roundtrip
found 10 hours ago
Select Delta flight, departing Thu, Aug 28 from Louisville to Washington, returning Sun, Aug 31, priced at $191 found 10 hours ago
Delta
Sat, Aug 23 - Tue, Aug 26
SDF
Louisville
DCA
Washington
$197 Roundtrip, found 2 hours ago
$197
Roundtrip
found 2 hours ago
Select Delta flight, departing Sat, Aug 23 from Louisville to Washington, returning Tue, Aug 26, priced at $197 found 2 hours ago
Delta
Mon, Dec 15 - Mon, Jan 5
SDF
Louisville
DCA
Washington
$207 Roundtrip, found 3 days ago
$207
Roundtrip
found 3 days ago
Select Delta flight, departing Mon, Dec 15 from Louisville to Washington, returning Mon, Jan 5, priced at $207 found 3 days ago
Delta
Thu, Aug 21 - Sat, Aug 23
SDF
Louisville
DCA
Washington
$208 Roundtrip, found 1 day ago
$208
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Aug 21 from Louisville to Washington, returning Sat, Aug 23, priced at $208 found 1 day ago
Delta
Tue, Oct 28 - Fri, Oct 31
SDF
Louisville
DCA
Washington
$211 Roundtrip, found 3 days ago
$211
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, Oct 28 from Louisville to Washington, returning Fri, Oct 31, priced at $211 found 3 days ago
Delta
Sat, Aug 30 - Mon, Sep 1
SDF
Louisville
DCA
Washington
$211 Roundtrip, found 2 hours ago
$211
Roundtrip
found 2 hours ago
Select Delta flight, departing Sat, Aug 30 from Louisville to Washington, returning Mon, Sep 1, priced at $211 found 2 hours ago
Flights from Louisville (SDF) to Washington (DCA)
Origin airport
Louisville Intl.
Destination airport
Ronald Reagan Washington National
Airlines serving
American Airlines, Delta, Southwest Airlines, United
Popular airline
Delta
Distance
472 mi
Average flight time
1 hour 49 mins

Frequently asked questions

How much is a Delta Air Lines flight from Louisville Intl. Airport (SDF) to Ronald Reagan Washington National Airport (DCA)?
Finding cheap one-way Delta Air Lines flights from SDF to DCA from $99 on Expedia couldn't be simpler — just filter by "Price (lowest to highest)." Alternatively, check out our budget-friendly return fares from $191 for your next exciting vacation.**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 SDF to DCA with Delta Air Lines?
January is one of the cheapest months to get away to Washington with Delta Air Lines. You could also find excellent prices on return and one-way tickets in February.
What is the cheapest time to book flights from Louisville Intl. Airport (SDF) to Ronald Reagan Washington National Airport (DCA) with Delta Air Lines?
Search for cheap Delta Air Lines flights from Louisville Intl. Airport (SDF) to Ronald Reagan Washington National Airport (DCA) one to three months prior to your 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 best day of the week to book a domestic flight is generally Sunday and the most expensive day tends to be 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 Louisville Intl. Airport (SDF) to Ronald Reagan Washington National Airport (DCA)?
To figure out if there's a direct route from SDF to DCA with Delta Air Lines or any other carriers, check the "Nonstop" filter when browsing for tickets.
What is the earliest Delta Air Lines flight from SDF to DCA?
Browse Delta Air Lines's earliest flights from SDF to DCA by checking our "Morning" and "Early Morning" filters. Not only will you get to where you're going 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 Washington?
Ronald Reagan Washington National Airport (DCA) is the main Washington hub for Delta Air Lines flights from Louisville Intl. Airport (SDF).
Why fly with Delta Air Lines from SDF to DCA?
Offering a rewarding loyalty program and an excellent in-flight experience, Delta Air Lines is a favorite for many passengers heading from SDF to DCA. Plus, 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 can go 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 Louisville Intl. Airport (SDF) to Ronald Reagan Washington National Airport (DCA)?
It's usually possible to cancel or reschedule your flight, although there may be a charge if your booking was made over 24 hours ago. Want to keep your options open? Use Expedia's "No cancel fee" or "Changes included" filter to find flights that won't charge you extra if you need to alter your plans. To modify your itinerary, go to "Trips," select your flight and click on "Manage Booking" for further information.

Explore a world of travel with Expedia

*Available to One Key members.