DCA - SDF

$105 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 2/9. 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
$189
Overall average: $239
American Airlines
Fri 2/6Tue 2/10
DCA - SDF • Non-stop
Cheapest non-stop
$189
Typical prices: $214-$283
American Airlines
Sat 2/14Tue 2/17
DCA - SDF • Non-stop
Top airlines
American Airlines
Cheapest • from $189 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 18% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
August
Cheapest • 24% price drop
August
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

Fri, Feb 6 - Tue, Feb 10
American Airlines Logo
1:59 pm - 4:02 pm
DCA
-
SDF
2h 03mnonstop
American Airlines Logo
6:00 am - 7:52 am
SDF
-
DCA
1h 52mnonstop
$189American Airlines
Fri, Feb 20 - Mon, Feb 23
American Airlines Logo
7:37 pm - 9:39 pm
DCA
-
SDF
2h 02mnonstop
American Airlines Logo
4:50 pm - 6:34 pm
SDF
-
DCA
1h 44mnonstop
$204American Airlines
Wed, Feb 11 - Wed, Feb 25
Southwest Logo
3:25 pm - 10:10 pm
DCA
-
SDF
6h 45m
1 stop
Southwest Logo
6:45 am - 1:00 pm
SDF
-
DCA
6h 15m
1 stop
$209Southwest
Thu, Feb 5 - Sun, Feb 8
American Airlines Logo
1:59 pm - 4:02 pm
DCA
-
SDF
2h 03mnonstop
American Airlines Logo
6:00 am - 7:57 am
SDF
-
DCA
1h 57mnonstop
$211American Airlines
Wed, Feb 11 - Wed, Feb 18
Southwest Logo
2:55 pm - 10:10 pm
DCA
-
SDF
7h 15m
2 stops
Southwest Logo
6:30 pm - 11:20 pm
SDF
-
DCA
4h 50m
1 stop
$214Southwest
Thu, Jan 29 - Sun, Feb 1
American Airlines Logo
1:59 pm - 4:02 pm
DCA
-
SDF
2h 03mnonstop
American Airlines Logo
6:00 am - 7:57 am
SDF
-
DCA
1h 57mnonstop
$219American Airlines
Wed, Feb 11 - Wed, Feb 18
Southwest Logo
2:55 pm - 10:10 pm
DCA
-
SDF
7h 15m
2 stops
Southwest Logo
11:50 am - 6:00 pm
SDF
-
DCA
6h 10m
2 stops
$220Southwest
Fri, Jan 30 - Tue, Feb 10
Southwest Logo
3:25 pm - 10:10 pm
DCA
-
SDF
6h 45m
1 stop
Southwest Logo
6:30 pm - 11:20 pm
SDF
-
DCA
4h 50m
1 stop
$224Southwest
Thu, Feb 19 - Sat, Feb 21
Southwest Logo
3:25 pm - 11:00 pm
DCA
-
SDF
7h 35m
2 stops
Southwest Logo
6:40 am - 6:55 pm
SDF
-
DCA
12h 15m
2 stops
$225Southwest
Sat, Feb 21 - Tue, Feb 24
American Airlines Logo
8:39 am - 10:42 am
DCA
-
SDF
2h 03mnonstop
American Airlines Logo
11:38 am - 4:25 pm
SDF
-
DCA
4h 47m
1 stop
$227American 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.

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 Tuesday 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 Thursdays 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 September, where the average cost of round-trip tickets is $369 and $329 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 2 weeks before departure, which saves you about 18% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 7 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$105
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly and prices are also 24% 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 3 days, the lowest price for a flight from Washington, D.C. Reagan-National Airport to Louisville was $105 for a one-way ticket and $189 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, and Delta 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 $253 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 $289 and an overall rating of 7.2.

  • 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 $253 or less one-way and $209 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 8040 reviews
7.8Entertainment
8.5Crew
7.2Food
8.1Boarding
7.9Comfort
Airline reviews

I have diamond medallion status and usually we are in comfort plus . We were in main this time ( which was fine ) and my husband wanted wine . I have at least 10 vouchers for drinks that are good for this year and next! The attendant would not take the picture of the voucher as proof and never came back to check as She asked me to pull it up on delta Wi-Fi. Instead my husband just used his Amex to buy the wine . Disappointing!!!

10.0 ExcellentAnne, Jan 2026
MCO - DTW
Read more Delta reviews

I have diamond medallion status and usually we are in comfort plus . We were in main this time ( which was fine ) and my husband wanted wine . I have at least 10 vouchers for drinks that are good for this year and next! The attendant would not take the picture of the voucher as proof and never came back to check as She asked me to pull it up on delta Wi-Fi. Instead my husband just used his Amex to buy the wine . Disappointing!!!

Food is basically Sun Chips, cookies or Cheezits. I had an exit row seat so I had plenty of room. The crew was very nice and efficient. Pilot kept us informed. Pretty good flight.

Air travel sucks. It continues to be awful for all airlines. No shame on delta alone.

It was Delta, but the flight attendants were stressful and disrespectful. I am a diamond member a travel weekly. I have not had a negative thing to share in quite some time. But this was noticeable.

Comfort Plus seat 11E seemed smaller than prior flights. The movie selection is good. Watched most of the most recent Tron movie. I'll watch the remaining part later as my movie is saved in the Delta Seatback Experience.

Flight was late from Newark to Atlanta, I asked flight attendant to please let my family of 3 out first when we landed to Atlanta because we were late for our connecting flight to Quito. She didn't and we were late for 5 minutes we couldn't board the plane and spend hours trying to get another flight with customer service for the next day.

I really liked the legroom. I am 6’4”.a at For some reason our seats were not together and using the app to fix it didn’t work. Passengers were nice enough to move for us but you should absolutely ensure a parent sits with their child.

Late delayed flight delays boarding and delays leaving and delays on arrival too. Cramped plane no room no food.

DTW line is too long. The flights from DTW to BWI are always delayed for unknown reasons.

Delta canceled our flight and we had to scramble to find another airline to get home. Phoenix is not a delta hub so they didn’t have another plane. It would have been a red eye though Salt Lake City. Getting in at 5am. No bueno.

The boarding process needs to be fixed. The zone don't work, especially when there is hardly anyone in zones 3, 4,and 5, leaving the majority of the passengers backed up in the aisle, especially because passengers seated near the front are blocking passengers who are seated in the rear of the plane. It would also help if the size of carry on bags was more strictly enforced.

delayed due to weather. Could not communicate with family since the wifi was broken

I got sick nothing contagious but distressing and the care I received by Kayla? Keighly the flight attendant will be memorable for ever. Thank You

We were told the flight was delayed 5 times, then it was moved to the next day.

Flight delay was communicated before leaving for airport which caused it to be a non-event. Great flight and crew!

The flight attendant, a black woman with curly hair who sat near Row 21, was wonderful and kind.

It took way too long to diagnose and solve the problem of a broken crew member cabin seat. Though compensation for the volunteer who left the flight was very kind.

We fly American Airlines quite a bit. And we always fly business class when traveling internationally. We were a bit disappointed with the comfort of this particular plane as well as the entertainment options.

The AA staff person who checked our bags was curt and almost rude. The FA also seemed unhappy doing her job. Overall it was like riding the school bus back in grade school.

My Internet did not work for Outlook email or basically anything. I paid for one hour of in-flight usage and it was terrible. I spent a lot of time on different sites and browsers with no luck and a lot of frustration. Other than that, the flight was on time, crew was nice, service was fine. Seat was OK even though I paid for the extra 6 inches. I cannot imagine how tight the seats in the back must be.

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

Information on your arrival and departure airports