DCA - SDF

$91 Find Cheap Flights from Reagan Washington National Airport to Louisville

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Reagan-National to Louisville departing on 9/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Louisville

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Louisville, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Louisville, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$263
Typical prices: $431-$259
Delta
Wed 7/8Wed 7/15
DCA - SDF • 1 stop
Cheapest non-stop
$264
Typical prices: $389-$260
American Airlines
Tue 6/30Sun 7/5
DCA - SDF • Non-stop
Top airlines
Cheapest • from $263 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with American Airlines. Average duration is 1h 53m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top layover airports
Cheapest • Avg $270 (round-trip)
Shortest trip • 4h 56m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 6 weeks in advance save around 23% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 32% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Louisville!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Reagan-National to Louisville (DCA-SDF)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Reagan-National to Louisville that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Reagan-National to Louisville

Wed, Jul 8 - Wed, Jul 15
Delta Logo
9:00 am - 3:42 pm
DCA
-
SDF
6h 42m
1 stop
Delta Logo
4:47 pm - 10:48 pm
SDF
-
DCA
6h 01m
1 stop
$263Delta
Fri, Aug 28 - Mon, Aug 31
American Airlines Logo
7:14 pm - 11:11 pm
DCA
-
SDF
3h 57m
1 stop
American Airlines Logo
6:30 pm - 11:59 pm
SDF
-
DCA
5h 29m
1 stop
$264American Airlines
Tue, Sep 15 - Tue, Sep 22
American Airlines Logo
3:21 pm - 5:18 pm
DCA
-
SDF
1h 57mnonstop
American Airlines Logo
5:48 pm - 7:41 pm
SDF
-
DCA
1h 53mnonstop
$267American Airlines
Tue, Jul 28 - Fri, Jul 31
Southwest Logo
12:00 pm - 8:30 pm
DCA
-
SDF
8h 30m
2 stops
Southwest Logo
3:00 pm - 11:55 pm
SDF
-
DCA
8h 55m
1 stop
$268Southwest
Fri, Jul 10 - Mon, Jul 13
Delta Logo
10:16 am - 3:42 pm
DCA
-
SDF
5h 26m
1 stop
Delta Logo
6:54 pm - 11:52 pm
SDF
-
DCA
4h 58m
1 stop
$269Delta
Wed, Jul 1 - Tue, Jul 7
Delta Logo
9:00 am - 3:31 pm
DCA
-
SDF
6h 31m
1 stop
Delta Logo
7:50 am - 11:28 am
SDF
-
DCA
3h 38m
1 stop
$273Delta
Thu, Jul 2 - Wed, Jul 8
American Airlines Logo
7:16 am - 9:12 am
DCA
-
SDF
1h 56mnonstop
American Airlines Logo
3:39 pm - 8:00 pm
SDF
-
DCA
4h 21m
1 stop
$274American Airlines
Tue, Jul 7 - Tue, Jul 14
American Airlines Logo
7:35 am - 9:28 am
DCA
-
SDF
1h 53mnonstop
American Airlines Logo
6:00 am - 7:50 am
SDF
-
DCA
1h 50mnonstop
$277American Airlines
Tue, Sep 15 - Mon, Sep 21
American Airlines Logo
8:36 am - 10:40 am
DCA
-
SDF
2h 04mnonstop
American Airlines Logo
7:27 pm - 11:59 pm
SDF
-
DCA
4h 32m
1 stop
$278American Airlines
Thu, Jun 25 - Mon, Jun 29
American Airlines Logo
7:34 am - 9:41 am
DCA
-
SDF
2h 07mnonstop
American Airlines Logo
6:01 am - 7:50 am
SDF
-
DCA
1h 49mnonstop
$279American Airlines
Booking Insights

KAYAK's insights & trends for Reagan-National to Louisville flights

Get data-powered insights and trends into flights from Reagan-National to Louisville to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Washington, D.C. Reagan-National Airport to Louisville?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Washington, D.C. Reagan-National Airport to Louisville departing in July.

What’s the cheapest day of the week to fly from Reagan Washington National Airport to Louisville?

The average price of all round-trip flights from Washington, D.C. Reagan-National Airport to Louisville clicked on KAYAK for each day over the last 12 months.

When flying from Reagan Washington National Airport to Louisville, you should consider leaving on a Saturday and avoid Mondays if you are looking for the best rates. For your return to Reagan Washington National Airport, you’ll find the best rates on Fridays and the most expensive ones on Sundays.

What is the cheapest month to fly from Washington, D.C. Reagan-National Airport to Louisville?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Reagan-National Airport to Louisville, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Washington, D.C. Reagan-National Airport to Louisville is August, where tickets cost $223 (return) on average. On the other hand, the most expensive months are March and May, where the average cost of round-trip tickets is $460 and $427 respectively.

Can I save money by flying with a layover from Washington, D.C. Reagan-National Airport to Louisville?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $259 on average.

How far in advance should I book a flight from Washington, D.C. Reagan-National Airport to Louisville?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Washington, D.C. Reagan-National Airport to Louisville, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Washington, D.C. Reagan-National Airport to Louisville, you should book around 6 weeks before departure, which saves you about 23% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$91
Best time to beat the crowds with an average 25% drop in price.
Most popular time to fly and prices are also 9% lower on average.
Flight from Reagan Washington National Airport to Louisville

When to book flights from Reagan-National to Louisville

Are your dates flexible? Find out the best times to travel from Reagan-National to Louisville based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Reagan Washington National Airport to Louisville flights

  • What is the cheapest flight from Washington, D.C. Reagan-National Airport to Louisville?

    In the last 5 days, the lowest price for a flight from Washington, D.C. Reagan-National Airport to Louisville was $91 for a one-way ticket and $263 for a round-trip.

  • Do I need a passport to fly between Reagan Washington National Airport and Louisville?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airports will I be using when flying from Reagan Washington National Airport to Louisville?

    On your way to Louisville, you’ll fly out from Washington, D.C. Reagan-National. You’ll be landing at Louisville Intl.

  • Which airlines offer Wi-Fi service onboard planes from Reagan Washington National Airport to Louisville?

    American Airlines, Delta, and JetBlue offer inflight Wi-Fi service on the Reagan Washington National Airport to Louisville flight route.

  • Which aircraft models fly most regularly from Reagan Washington National Airport to Louisville?

    The Embraer 175 is the aircraft model that flies most regularly on the Reagan Washington National Airport to Louisville flight route.

  • Which airline alliances offer flights from Reagan Washington National Airport to Louisville?

    SkyTeam, and oneworld are the airline alliances operating flights between Reagan Washington National Airport and Louisville, with SkyTeam being the most commonly used for this route.

  • On which days can I fly direct from Reagan Washington National Airport to Louisville?

    There are nonstop flights from Reagan Washington National Airport to Louisville on a daily basis.

  • Which is the best airline for flights from Washington, D.C. to Louisville, Delta or American Airlines?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Louisville are Delta and American Airlines. With an average price for the route of $278 and an overall rating of 7.9, Delta is the most popular choice. American Airlines is also a great choice for the route, with an average price of $332 and an overall rating of 7.1.

  • How does KAYAK find such low prices on flights from Reagan Washington National Airport to Louisville?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Reagan Washington National Airport to Louisville.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Reagan Washington National Airport to Louisville?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Louisville from Reagan Washington National Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Reagan Washington National Airport to Louisville?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Louisville with an airline and back to Reagan Washington National Airport with another airline. Booking your flights between Reagan Washington National Airport and SDF can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Reagan Washington National Airport to Louisville?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Louisville from Reagan Washington National Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Washington, D.C. Reagan-National Airport to Louisville

  • Looking for a cheap flight? 25% of our users found flights on this route for $243 or less one-way and $283 or less round-trip.

Prefer to fly direct from Reagan Washington National Airport to Louisville?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Washington, D.C. Reagan-National to Louisville Intl.
Find which airlines fly direct from Washington, D.C. Reagan-National Airport to Louisville Intl Airport, which days they fly and book direct flights.

Direct departures

Washington, D.C. Reagan-National to Louisville Intl

Monday

American Airlines

American Airlines

Tuesday

American Airlines

American Airlines

Wednesday

American Airlines

American Airlines

Thursday

American Airlines

American Airlines

Friday

American Airlines

American Airlines

Saturday

American Airlines

American Airlines

Sunday

American Airlines

American Airlines

See more direct flights

Direct returns

Louisville Intl to Washington, D.C. Reagan-National

Monday

American Airlines

American Airlines

Tuesday

American Airlines

American Airlines

Wednesday

American Airlines

American Airlines

Thursday

American Airlines

American Airlines

Friday

American Airlines

American Airlines

Saturday

American Airlines

American Airlines

Sunday

American Airlines

American Airlines

See more direct flights

Reviews of the top airlines flying from Reagan-National to Louisville

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Louisville. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Reagan-National to Louisville? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8396 reviews
7.8Comfort
8.1Boarding
7.8Entertainment
8.5Crew
7.2Food
Airline reviews

Flight delayed four separate times. I’m now one hour hours late to landing.

2.0 MediocreTravis, Jun 2026
SFO - LAX
Read more Delta reviews

Flight delayed four separate times. I’m now one hour hours late to landing.

worst flight ever from Delta, it got delayed and kept on delaying..

Should never have had to go to Detroit from Orlando back to Tennessee!

Got rerouted from a straight flight from Orlando to Atlanta to Knoxville to a flight from Orlando to Detroit to Knoxville! Seriously!! Flight delay out of Detroit! Long day for what should have been a pretty easy travel day!

Two delays on two separate planes with parts they could not easily find and replace.

Checkin was good, fllight ws good. Onlly complaint is lack of foot on 6 hour flight from Seattle to Boston. Snacks were flimsy - chips and cookies. could have offered something more substantial for such a long flight. I know you can buy food in airport but for the price you pay for a ticket, they should step up for the passengers.

Only beverages were offered to first class and I thought the flight attendant could have also served the Delta Comfort as well instead of sitting down and staring at her phone and walking past all of us to the back of the plane to charge her phone more. There was a complete lack of turbulence and was safe enough for flights attendant to walk around in the front of the plane, collect trash and serve a few people water and turn off the seat belt light. Also didn’t enforce people putting their seats into the upright position and allowed two passengers to remain reclined during landing. They seemed out to lunch completely. Usually my experience on Delta is much better.

Long story short, it was one of the better flight experiences I've had in some time when compared with other airlines.

Flight was great! This flight from Atlanta was even better than when I paid for Comfort from SNA to Atlanta.

Connection flights should be spaced out farther because too close I missed my connection.

Overall a good experience, however Wifi was not working on the flight.

THe flight was an hour late. You got us on the plan and we sat on the ground for 45 minutes with no information from the pilot whatsoever. Worst flight this year.

Going non stop to lax like I paid for. Not stopping in MCI for gas. Too long of delays

Incoming flight was delayed, delaying boarding. It then took 30 mins to take off. Took 20 mins to get to a gate because they changed the gate last minute, crew weren’t ready so there was no one staffed to work the jet bridge. Boarding was so disorganized as is usual with American because everyone just stands around the gate regardless of boarding group.

Delays with no explanation. It could have been handled better.

The gate got changed several times and the flight was delayed over an hour. Awful experience

Flight delay for mechanical. Inbound arrived on time. No one said why mechanical delay.

It was an older plane. First Class was not especially roomy or comfortable. It was a short flight so there were no meal but they did offer mixed nuts which used to be normal but now is rare. Crew member was very polite and professional.

Flight boarded, departed and landed on time. Excellent service from flight attendant in FIRST

No Snacks or Entertainment. The flight was short, snacks should still be given.

Everything you need to know for your flight from Reagan-National to Louisville

Information on your arrival and departure airports