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

View $99 flight on Wed, Sep 17, 2025Opens in a new window

$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 $208 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, Sep 10 - Tue, Sep 16
SDF
Louisville
DCA
Washington
$208 Roundtrip, found 12 hours ago
$208
Roundtrip
found 12 hours ago
Select Delta flight, departing Wed, Sep 10 from Louisville to Washington, returning Tue, Sep 16, priced at $208 found 12 hours ago
Delta
Fri, Sep 12 - Mon, Sep 15
SDF
Louisville
DCA
Washington
$209 Roundtrip, just found
$209
Roundtrip
just found
Select Delta flight, departing Fri, Sep 12 from Louisville to Washington, returning Mon, Sep 15, priced at $209 just found
Delta
Sat, Oct 25 - Sat, Nov 1
SDF
Louisville
DCA
Washington
$214 Roundtrip, found 1 day ago
$214
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Oct 25 from Louisville to Washington, returning Sat, Nov 1, priced at $214 found 1 day ago
Delta
Sat, Aug 30 - Tue, Sep 16
SDF
Louisville
DCA
Washington
$231 Roundtrip, found 9 hours ago
$231
Roundtrip
found 9 hours ago
Select Delta flight, departing Sat, Aug 30 from Louisville to Washington, returning Tue, Sep 16, priced at $231 found 9 hours ago
Delta
Mon, Sep 29 - Tue, Sep 30
SDF
Louisville
DCA
Washington
$259 Roundtrip, found 1 hour ago
$259
Roundtrip
found 1 hour ago
Select Delta flight, departing Mon, Sep 29 from Louisville to Washington, returning Tue, Sep 30, priced at $259 found 1 hour 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
American Airlines
Distance
472 mi
Average flight time
1 hour 45 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 $208 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.

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*Available to One Key members.