DCA - SDF

$99 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 11/18. 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

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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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

Tue, Sep 16 - Tue, Sep 23
American Airlines Logo
5:10 pm - 7:05 pmDCA-SDF
1h 55mnonstop
American Airlines Logo
6:00 am - 7:45 amSDF-DCA
1h 45mnonstop
$189American Airlines
Find Deal
Wed, Sep 3 - Fri, Oct 3
Delta Logo
6:00 am - 11:35 amDCA-SDF
5h 35m1 stop
Delta Logo
5:53 pm - 11:42 pmSDF-DCA
5h 49m1 stop
$194Delta
Find Deal
Tue, Sep 16 - Tue, Sep 23
Delta Logo
8:50 am - 4:18 pmDCA-SDF
7h 28m1 stop
Delta Logo
7:50 am - 11:35 amSDF-DCA
3h 45m1 stop
$197Delta
Find Deal
Fri, Sep 5 - Sun, Sep 7
American Airlines Logo
8:30 pm - 10:22 pmDCA-SDF
1h 52mnonstop
American Airlines Logo
6:00 am - 7:45 amSDF-DCA
1h 45mnonstop
$199American Airlines
Find Deal
Tue, Sep 30 - Wed, Oct 1
Southwest Logo
11:55 am - 6:25 pmDCA-SDF
6h 30m1 stop
Southwest Logo
1:15 pm - 9:00 pmSDF-DCA
7h 45m2 stops
$202Southwest
Find Deal
Tue, Sep 9 - Sat, Sep 13
Delta Logo
11:00 am - 3:44 pmDCA-SDF
4h 44m1 stop
Delta Logo
12:48 pm - 6:45 pmSDF-DCA
5h 57m1 stop
$203Delta
Find Deal
Tue, Sep 30 - Wed, Oct 1
Southwest Logo
12:00 pm - 6:25 pmDCA-SDF
6h 25m2 stops
Southwest Logo
1:15 pm - 9:00 pmSDF-DCA
7h 45m2 stops
$207Southwest
Find Deal
Sun, Sep 14 - Tue, Sep 16
Southwest Logo
6:00 am - 2:10 pmDCA-SDF
8h 10m1 stop
Southwest Logo
6:00 am - 12:45 pmSDF-DCA
6h 45m2 stops
$208Southwest
Find Deal
Thu, Sep 25 - Mon, Sep 29
Delta Logo
6:00 am - 10:00 amDCA-SDF
4h 00m1 stop
Delta Logo
5:53 pm - 11:42 pmSDF-DCA
5h 49m1 stop
$209Delta
Find Deal
Wed, Oct 8 - Sun, Oct 12
American Airlines Logo
8:32 am - 10:43 amDCA-SDF
2h 11mnonstop
American Airlines Logo
6:09 am - 7:49 amSDF-DCA
1h 40mnonstop
$218American Airlines
Find Deal
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 Wednesdays 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 February, where tickets cost $224 (return) on average. On the other hand, the most expensive months are September and March, where the average cost of round-trip tickets is $406 and $371 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 4 weeks before departure, which saves you about 43% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$99
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly with an average 18% increase in price.
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 $99 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 Canadair (Bombardier) Regional Jet 700 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?

    oneworld is the only airline alliance operating flights between Reagan Washington National Airport and Louisville.

  • 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 United Airlines?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Louisville are Delta and United Airlines. With an average price for the route of $253 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $287 and an overall rating of 7.4.

  • 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 $124 or less one-way and $199 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

Alaska Airlines, American Airlines

Alaska Airlines, American Airlines

Tuesday

Alaska Airlines, American Airlines

Alaska Airlines, American Airlines

Wednesday

Alaska Airlines, American Airlines

Alaska Airlines, American Airlines

Thursday

Alaska Airlines, American Airlines

Alaska Airlines, American Airlines

Friday

Alaska Airlines, American Airlines

Alaska Airlines, American Airlines

Saturday

Alaska Airlines, American Airlines

Alaska Airlines, American Airlines

Sunday

Alaska Airlines, American Airlines

Alaska Airlines, American Airlines

See more direct flights

Direct returns

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

Monday

Alaska Airlines, American Airlines

Alaska Airlines, American Airlines

Tuesday

Alaska Airlines, American Airlines

Alaska Airlines, American Airlines

Wednesday

Alaska Airlines, American Airlines

Alaska Airlines, American Airlines

Thursday

Alaska Airlines, American Airlines

Alaska Airlines, American Airlines

Friday

Alaska Airlines, American Airlines

Alaska Airlines, American Airlines

Saturday

Alaska Airlines, American Airlines

Alaska Airlines, American Airlines

Sunday

Alaska Airlines, American Airlines

Alaska Airlines, American Airlines

See more direct flights

Reviews of the top 3 airlines serving 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 7982 reviews
8.2Boarding
8.5Crew
7.9Entertainment
7.3Food
7.9Comfort
Airline reviews

Three seats in first class were broken and while they were able to still acommodate us it was looking very touch and go and they had others they could not acommodate

6.0 GoodKristopher, Aug 2025HPN - ATL
Read more Delta reviews

Three seats in first class were broken and while they were able to still acommodate us it was looking very touch and go and they had others they could not acommodate

Mechanic delay in addition to a 2 hour change in takeoff time was frustrating.

Delayed due to thunderstorms and no in-flight service due to rough weather — both of which are out of Delta’s control. Flight was good overall.

The flight attendants in SLC were rude. I arrived 40 minutes early to gate. Ticket said I needed check in for seat assignments and tried check in and attendants said they weren’t doing it. And proceeded to never call me to give me a ticket so when time to board I received the very last seat. Please relay to employees to do their job better..,

On this flight I felt the food offering was not as complete as on previous flights. The tomato salad was a bit off and there was nothing additional such a bread or butter. The breakfast was only one option, so you either ate what they had or ate nothing. The crew was efficient, but most seemed frustrated throughout the flight. The flight arrived early and was obstacle-free, so I’m overall quite happy, but the shine in the rest of the experience just wasn’t there.

The seats got pretty uncomfortable pretty fast. The armrests are bigger than on other planes, so I had less room in the actual seat. My butt hurt by the end of the flight. :/ comfort was the primary issue. The crew were fantastic!

I believe that a four-hour trip should have a meal. Delta had none.

Great flight with Delta! Boarding was quick and easy, the amenities were solid, and the plane was in great shape. The flight attendants had a fun, lively energy while staying professional. All in all, a smooth trip — even managed to catch up on some rest. Thanks, Delta!

I was uncomfortably cold on the plane. Other than that it was uneventful and therefore as enjoyable as a plane ride can be.

There was supposed to be a meal served, but there wasn’t and the major toilet was out of order

Very small cramped plane for an international flight. Everything else was good, but it was maybe the smallest comfort-wise I've ever been on for longer than 3-4 hours and the trip was 7.5

I understand stuff happens, but plane failures are likely due to lack of maintenance. Additionally, air conditioning wasn't working, no snack/drink service, no WiFi. Fortunately, the crew was communicative and light-hearted. United grabbed another plane and we were able to get to our destination.

There was no food available for this red eye... one little waffle cookie for a 6+ hour flight... thank God I was able to sleep some

It is clear that someone knew, and competent, is in charge of food at United Airlines at least for the international flights. I was flying in coach, but the choices of the dinner were excellent. Tasty, and appropriate size. I had the beef, which was a little bit like a shepherds pie, and it was good. Nothing comparable has been served on a United flight in years. It will not be confused with three star food, but it is very good for airline food. Even better was the breakfast choice between a cinnamon roll and a breakfast sandwich. I chose the breakfast sandwich which was absolutely delicious and which I would happily order again at my local Starbucks or Panera. It is clear that someone knew indifferent is in charge of the food and it’s about time.

The flight was comfortable with the exit row and great service

Flight was delayed 3 hours. No food and drink vouchers was provided. They offered a mini pretzel bag and water .

Staff was rude. Didn’t give water for 2 hours. Worst service

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

I liked the choice of lemon ginger tea. I think stewardesses can be more considerate of older people needs.

We were given vouchers we couldn’t use with a 5.5 hour delay

Delayed flight that lead to a missed connection and a 5-hour trip became a 12-hour flight 🙄

Any flight to ORD after about 2pm this summer has been challenging. Flight was delayed getting in (coming from ORD) and that led to it not leaving before a ground stop due to lightening before they could fuel the plane, and so forth. They made up some time but we were still late in arriving at ORD, and that led to missed connections.

Food was ok, but not as good as I have had before on AA.

No issues. They did change our gate FOUR times in about 30 minutes which was mildly annoying but the flight was fine.

Great flight. No issues at all. I still think boarding could be more efficient but otherwise, a good experience.

Pretty good. The food was just mediocre, the boarding and crew were good.

They are still charging me after taking 466 and 833 for round trip from AR to to Bradley airport from 19 to 21. Then poor experience. Am hurt and I will say it on social media. Please stay away from this airline. I see in my bank account they are still taking 644. Am trying to stop it. I used to fly United airlines and I suggest that if you don't want extra charges and good service you go back there. American airlines delayed my flight again and I was late for my meeting, no recompensation but charging me over and over.

They changed our Gate 5 times, and concourse twice. Changed our seats twice.

Pitch was very small. Knees were on the seat back in front of me.

Wonderful as usual except for other guests that were unruly and not kept in check by the Crew.

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

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