SDF - DCA

$99 Find Cheap Flights from Louisville to Reagan Washington National Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Louisville to Reagan-National departing on 12/17. 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 Washington, D.C. Reagan-National Airport

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

Cheapest round-trip
$203
Overall average: $271
Southwest
Wed 1/21Mon 1/26
SDF - DCA • 1 stop
Cheapest non-stop
$204
Typical prices: $219-$427
American Airlines
Sat 12/20Fri 12/26
SDF - DCA • Non-stop
Top airlines
Southwest
Cheapest • from $203 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 37% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
August
Cheapest • 26% price drop
March
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Reagan-National!
Flight Deals
Booking Insights
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Louisville to Reagan-National 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 Louisville to Reagan-National

Wed, Jan 21 - Mon, Jan 26
Southwest Logo
5:45 pm - 10:55 pmSDF-DCA
5h 10m1 stop
Southwest Logo
6:05 am - 12:15 pmDCA-SDF
6h 10m1 stop
$203Southwest
Find Deal
Wed, Jan 21 - Mon, Jan 26
Southwest Logo
11:50 am - 8:35 pmSDF-DCA
8h 45m2 stops
Southwest Logo
6:05 am - 12:15 pmDCA-SDF
6h 10m1 stop
$208Southwest
Find Deal
Mon, Jan 5 - Mon, Jan 12
Delta Logo
5:00 pm - 9:23 pmSDF-DCA
4h 23m1 stop
Delta Logo
1:45 pm - 9:05 pmDCA-SDF
7h 20m1 stop
$209Delta
Find Deal
Wed, Jan 21 - Mon, Jan 26
Southwest Logo
11:50 am - 10:55 pmSDF-DCA
11h 05m2 stops
Southwest Logo
8:00 am - 5:00 pmDCA-SDF
9h 00m2 stops
$213Southwest
Find Deal
Thu, Dec 18 - Thu, Dec 18
Southwest Logo
6:35 am - 1:05 pmSDF-DCA
6h 30m2 stops
Southwest Logo
3:10 pm - 9:30 pmDCA-SDF
6h 20m1 stop
$214Southwest
Find Deal
Mon, Dec 15 - Wed, Dec 17
Southwest Logo
1:50 pm - 8:30 pmSDF-DCA
6h 40m1 stop
Southwest Logo
9:30 am - 4:35 pmDCA-SDF
7h 05m1 stop
$218Southwest
Find Deal
Fri, Dec 12 - Sat, Dec 13
American Airlines Logo
6:08 am - 7:49 amSDF-DCA
1h 41mnonstop
American Airlines Logo
2:54 pm - 4:58 pmDCA-SDF
2h 04mnonstop
$219American Airlines
Find Deal
Mon, Dec 15 - Wed, Dec 17
Southwest Logo
6:45 am - 1:00 pmSDF-DCA
6h 15m1 stop
Southwest Logo
9:30 am - 5:10 pmDCA-SDF
7h 40m2 stops
$223Southwest
Find Deal
Mon, Dec 15 - Thu, Dec 18
Southwest Logo
6:45 am - 1:00 pmSDF-DCA
6h 15m1 stop
Southwest Logo
6:55 am - 3:50 pmDCA-SDF
8h 55m1 stop
$224Southwest
Find Deal
Wed, Dec 24 - Sat, Dec 27
American Airlines Logo
9:20 am - 4:10 pmSDF-DCA
6h 50m1 stop
American Airlines Logo
7:45 pm - 9:33 pmDCA-SDF
1h 48mnonstop
$227American Airlines
Find Deal
Booking Insights

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

Get data-powered insights and trends into flights from Louisville to Reagan-National 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 Louisville to Reagan Washington National Airport?

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

If your flying dates are flexible, you should consider flying to Reagan Washington National Airport on a Thursday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Louisville to Reagan Washington National Airport. For your return ticket, we recommend flying on a Saturday and avoiding Mondays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Louisville to Washington, D.C. Reagan-National Airport, 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 Louisville to Washington, D.C. Reagan-National Airport is August, where tickets cost $204 (return) on average. On the other hand, the most expensive months are October and March, where the average cost of round-trip tickets is $338 and $306 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Louisville to Washington, D.C. Reagan-National Airport, 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 Louisville to Washington, D.C. Reagan-National Airport, you should book around 3 weeks before departure, which saves you about 37% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know

Low seasonAugust
Cheapest flight$99
Best time to beat the crowds with an average 27% drop in price.
Most popular time to fly with an average 10% increase in price.
Flight from Louisville to Reagan Washington National Airport

When to book flights from Louisville to Reagan-National

Are your dates flexible? Find out the best times to travel from Louisville to Reagan-National 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 Louisville to Reagan Washington National Airport flights

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

    In the last 3 days, the lowest price for a flight from Louisville to Washington, D.C. Reagan-National Airport was $99 for a one-way ticket and $203 for a round-trip.

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

    No, a passport isn't needed to fly from Louisville to Reagan Washington National Airport. However, local authorities might ask for an official ID.

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

    Louisville airport is called Louisville Intl and the only airport in Reagan Washington National Airport is Washington, D.C. Reagan-National.

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

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

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

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

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Louisville to Washington, D.C. are Delta and American Airlines. With an average price for the route of $528 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 $281 and an overall rating of 7.2.

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

    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 Louisville to Reagan Washington National Airport.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Reagan Washington National Airport from Louisville 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 Louisville to Reagan Washington National Airport?

    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 Reagan Washington National Airport with an airline and back to Louisville with another airline. Booking your flights between Louisville and DCA 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 Louisville to Reagan Washington National Airport?

    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 Reagan Washington National Airport from Louisville 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 Louisville to Washington, D.C. Reagan-National Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $253 or less one-way and $228 or less round-trip.

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

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

Direct departures

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

Direct returns

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

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

 
See real verified KAYAK customer reviews for airlines flying from Louisville to Washington, D.C.. 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 Louisville to Reagan-National? 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 8010 reviews
7.3Food
7.9Comfort
7.9Entertainment
8.5Crew
8.1Boarding
Airline reviews

Staff was exceptional! Everyone was kind, professional and friendly making the trip very pleasant. Thank you!

10.0 ExcellentMary Heather, Nov 2025MKE - LGA
Read more Delta reviews

Staff was exceptional! Everyone was kind, professional and friendly making the trip very pleasant. Thank you!

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

We had a lot of really rough weather but that was not Delta's fault. Pilot was amazing.

First, Delta needs more flights to/from Miami. Second, a 1000pm leaving at 1230pm is unacceptable from their biggest airport world hub. Another aircraft could have been used such as the aircraft scheduled to be used in the morning for that exact same route. Yes, I did get me there but the lack of sleep the next day didn't help me enjoy my entire trip since I was busy with activities during the weekend. This can be and is expected from Spirit (going bankrupt) and Frontier (despite they're nickel and dimers). But from Delta's World Hub? That's totally unacceptable!

This flight was straightforward and without difficulty. Service was OK, but I continue to be underwhelmed by level of attention given to Sky Priority passengers.

It would’ve been nice for all that money to have a more substantial snack for free. I remember once upon a time getting a very nice turkey sandwich with Swiss cheese on whole wheat bread for no charge along with a drink. I guess those days are gone. it’s a little insulting being given a cookie or a bag of baked chips Going forward I’ll just bring my own.

Our flight from SFO to MSP was right on time on 11/15/2025. No delays. As we approached MSP at about 8 pm, we circled in the air until 8:40 pm so I don't call that efficient for MSP. I think the captain should announce the delay and why. (as if we all don't know that we are just circling around the area, slowing down, speeding up, slowing down.) Thank you. Marilyn Fischer

Service in business class was not impressive. I ordered coffee with dinner and then watched other people get 2 refills before I got my 1 cup of coffee, and only after I pressed the attendant button overhead. Furthermore, the seats in the forward cabin need maintenance on this 737-800: the upholstery is detaching from the seat frame, at least on the backs of seats 1C, 1D.

The ticket agents in West Palm Beach on Friday afternoon Nov. 7th were incredible in getting us on an earlier plane to Atlanta during the government shutdown. Had the taken our original flight we would have missed our connection. She did this on her own, We didn't even have to ask, and she did it all with a smile and showing genuine concern that we would be taken care of. We are very grateful and thankful. We fly often, and now we will be sure to fly Delta.

Flight delayed then cancelled. Misplaced luggage. Still do not have. Rented car 1100 mile drive. I had to buy some overnight Hotels clothes toiletries gas food at my expense. Still not home. Not sure where luggage is. Over 4 hours on hold to Felta

Horrible. Both legs of my flight were delayed more than 6 hours. No compensation, no screens on the plane, and the plane was not clean.

After we'd boarded , they canceled the flight. The crew didn't even know , we just all received text messages. Then after they deplaned us , AA was just like "too bad, go F your self, we sure ain't gonna help you"

The AA app really sucks ... Every flight & connecting flights were delayed over 30 mins. One connecting flight on American Eagle said it was delayed in its arrival ... when it was actually parked across from the gate for over 1 hr before they pulled it to the gate. Seats in the economy/ main cabin are packed together like sardines ... no leg room.

Initial flight was cancelled at the time of arrival to the airport, flight alternative requires switching from direct to flight with a layover, and the plane felt like it would split apart, it was so rattle-y.

Weather delay for 2.5 hours followed by half hour crew delay, did not have ginger ale, uncomfortable seats

It was nobody’s fault - but the plane came 4-hrs late and we were updated randomly in 20-30 mins increments which left us hostage to sit and wait expectantly. It was very long and got very late. Our plane didn’t land until nearly 1 am! Also the toilet wasn’t working. The hosts were nice enough but were clearly “about to pass out” as one told me. Lastly, there was no snack or even time for it. Just a bad experience overall.

To start, I’d like to say that every American Airline personnel I interacted with on the ground, especially flight crew, was very friendly and did their best to help me out. Despite this, however, my experience with the airline was an entire mess. The 7:19 PM flight was heavily delayed due to weather, and pushed to 10:30 AM the next morning. Because of this, I had to spend the night inside of the airport. At some point later in the night, I got an email saying that the flight had been canceled. I called the support number, and the representative on the other line told me that the flight was still on and that I didn’t need to rebook. The next morning, no one came to the gate to open the door for the crew until almost 11 AM. By this time the flight crew had been waiting for over an hour, and they had called management to get someone to open the door for them multiple times. Around 11:30, the gate screen had changed to a different flight. I ended up buying a last minute ticket with Southwest airline just to get to Chicago, because the next flight with American wasn’t until 7:19 pm that day. Now, earlier that morning my suitcase had been sent ahead of me to ORD. I went to baggage claim to ask them if I could have my suitcase forwarded to where I was staying. The representative at SDF baggage claim said they could and put the claim in for me. As I was going back through TSA, I got an email that the airline had found my suitcase, but the next step was to send it BACK to SDF. I called the airline support number again, and I made it clear that my suitcase needed to stay in Chicago and to not come back to SDF. The representative told me that they would hold my suitcase at ORD and that it wasn’t going to be forwarded anywhere. Once I got there, I found that they had loaded my suitcase onto a plane to send it back to SDF. Thankfully, I had gotten to the baggage claim counter in time for them to put in a request to bring my suitcase back up. My refund with the airline is processing already, but because of this entire experience and miscommunication at every turn of the way, I will not book with American Airlines in the future.

Cabin was roomy enough to easily slide my carry on under the seat in front of me!

The boarding crew was incredibly helpful getting me on an earlier flight

Great experience. Flight boarded easily. Departed early. Smooth flight. Great arrival in DC--almost no taxing! Almost direct to gate from runway. Crew was terrific. Same cookies and beverages in main cabin. I did not use the entertainment system on this flight.

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

Information on your arrival and departure airports