SDF - WAS

$104 Find Cheap Flights from Louisville to Washington, D.C.

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 Washington, D.C. departing on 4/1. 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.

 
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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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$200
Overall average: $349
Multiple Airlines
Fri 4/17Sun 4/19
SDF - BWI • 1 stop
Cheapest non-stop
$207
Typical prices: $224-$331
American Airlines
Wed 5/20Wed 5/27
SDF - DCA • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
American's Basic Economy is budget-friendly with carry-on.
United's Economy Plus adds up to 6 inches of legroom.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $207 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with American Airlines and United Airlines. Average duration is 1h 39m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top routes
Cheapest • 16% average savings
Most popular
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 26% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 11% price drop
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 Washington, D.C.!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Louisville to Washington, D.C. (SDF-WAS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Louisville to Washington, D.C. 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 Washington, D.C.

Fri, Apr 17 - Sun, Apr 19
Multiple Airlines Logo
7:48 pm - 8:43 am
SDF
-
BWI
12h 55m
1 stop
Multiple Airlines Logo
8:52 pm - 5:04 pm
BWI
-
SDF
20h 12m
1 stop
$200Multiple Airlines
Wed, May 20 - Wed, May 27
American Airlines Logo
6:00 am - 7:44 am
SDF
-
DCA
1h 44mnonstop
American Airlines Logo
12:10 pm - 2:02 pm
DCA
-
SDF
1h 52mnonstop
$207American Airlines
Wed, May 20 - Wed, May 27
United Airlines Logo
5:50 am - 7:30 am
SDF
-
IAD
1h 40mnonstop
United Airlines Logo
12:48 pm - 2:37 pm
IAD
-
SDF
1h 49mnonstop
$207United Airlines
Thu, May 21 - Wed, May 27
American Airlines Logo
10:11 am - 11:59 am
SDF
-
DCA
1h 48mnonstop
American Airlines Logo
7:45 pm - 9:41 pm
DCA
-
SDF
1h 56mnonstop
$218American Airlines
Tue, Apr 21 - Thu, Apr 23
Southwest Logo
6:20 am - 7:55 am
SDF
-
BWI
1h 35mnonstop
Southwest Logo
9:55 pm - 11:45 pm
BWI
-
SDF
1h 50mnonstop
$222Southwest
Wed, Apr 22 - Sun, May 10
American Airlines Logo
6:00 am - 7:44 am
SDF
-
DCA
1h 44mnonstop
American Airlines Logo
7:38 am - 9:38 am
DCA
-
SDF
2h 00mnonstop
$228American Airlines
Fri, May 29 - Mon, Jun 1
United Airlines Logo
6:00 am - 7:35 am
SDF
-
IAD
1h 35mnonstop
United Airlines Logo
8:31 am - 10:23 am
IAD
-
SDF
1h 52mnonstop
$229United Airlines
Thu, Apr 16 - Sun, Apr 19
American Airlines Logo
6:00 am - 7:44 am
SDF
-
DCA
1h 44mnonstop
American Airlines Logo
7:38 am - 9:38 am
DCA
-
SDF
2h 00mnonstop
$229American Airlines
Tue, Apr 21 - Thu, Apr 23
Southwest Logo
3:45 pm - 5:25 pm
SDF
-
BWI
1h 40mnonstop
Southwest Logo
6:15 am - 11:40 am
BWI
-
SDF
5h 25m
1 stop
$232Southwest
Thu, Apr 16 - Sun, Apr 19
Delta Logo
10:46 am - 4:15 pm
SDF
-
IAD
5h 29m
1 stop
Delta Logo
6:00 am - 10:26 am
IAD
-
SDF
4h 26m
1 stop
$249Delta
Booking Insights

KAYAK's insights & trends for Louisville to Washington, D.C. flights

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

What is the cheapest Louisville to Washington, D.C. flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from Louisville to Washington, D.C. costs $189 on the route between Louisville (SDF) and Washington, D.C. Reagan-National Airport (DCA). Over the past month, this route was, on average, 16% cheaper than other Louisville-Washington, D.C. routes. The most popular route is between Louisville (SDF) and Washington, D.C. Dulles Intl Airport (IAD).

What’s the cheapest day of the week to fly from Louisville to Washington, D.C.?

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

For Louisville to Washington, D.C., Friday is the cheapest day to fly on average and Tuesday is the most expensive. Flying from Washington, D.C. back to Louisville, the best deals are generally found on Saturday, with Sunday being the most expensive.

What is the cheapest month to fly from Louisville to Washington, D.C.?

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., 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. is November, where tickets cost $234 (return) on average. On the other hand, the most expensive months are August and March, where the average cost of round-trip tickets is $301 and $299 respectively.

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

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.

No, with an average price for the route of $305, prices are generally cheapest when you fly direct.

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

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., 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., you should book around 4 weeks before departure, which saves you about 26% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Expert advice

Expert advice for your flight from Louisville to Washington, D.C.

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on American Airlines

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Stefanie Waldek

Stefanie Waldek

Expert on United Airlines

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Good to know

Low seasonFebruary
Cheapest flight$104
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly and prices are also 4% lower on average.
Flight from Louisville to Baltimore

When to book flights from Louisville to Washington, D.C.

Are your dates flexible? Find out the best times to travel from Louisville to Washington, D.C. 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 flights from Louisville to Washington, D.C.

  • What is the cheapest flight from Louisville to Washington, D.C.?

    In the last 3 days, the lowest price for a flight from Louisville to Washington, D.C. was $104 for a one-way ticket and $200 for a round-trip.

  • Do I need a passport to fly between Louisville and Washington, D.C.?

    A passport is not required to fly from Louisville to Washington, D.C..

  • Which airports will I be using when flying from Louisville to Washington, D.C.?

    When flying out of Louisville you will be using Louisville Intl. You will be landing at one of these airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl.

  • Which airlines offer Wi-Fi service onboard planes from Louisville to Washington, D.C.?

    American Airlines, and Delta offer inflight Wi-Fi service on the Louisville to Washington, D.C. flight route.

  • Which aircraft models fly most regularly from Louisville to Washington, D.C.?

    The Embraer 175 is the aircraft model that flies most regularly on the Louisville to Washington, D.C. flight route.

  • Which airline alliances offer flights from Louisville to Washington, D.C.?

    SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between Louisville and Washington, D.C., with SkyTeam being the most commonly used for this route.

  • On which days can I fly direct from Louisville to Washington, D.C.?

    There are nonstop flights from Louisville to Washington, D.C. on a daily basis.

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

    The two airlines most popular with KAYAK users for flights from Louisville to Washington, D.C. are Southwest and United Airlines. With an average price for the route of $270 and an overall rating of 8.0, Southwest is the most popular choice. United Airlines is also a great choice for the route, with an average price of $265 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Louisville to Washington, D.C.?

    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 Washington, D.C..

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Louisville to Washington, D.C.?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington, D.C. 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 Washington, D.C.?

    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 Washington, D.C. with an airline and back to Louisville with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Louisville to Washington, D.C.?

    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 Washington, D.C. 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.

  • Looking for a cheap flight? 25% of our users found flights on this route for $217 or less one-way and $325 or less round-trip.

Prefer to fly direct from Louisville to Washington, D.C.?

 
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..
Find which airlines fly direct from Louisville Intl Airport to Washington, D.C., which days they fly and book direct flights.

Direct departures

Louisville Intl to Washington, D.C.

Monday

American Airlines,United Airlines

American Airlines,United Airlines

Tuesday

American Airlines,United Airlines

American Airlines,United Airlines

Wednesday

American Airlines,United Airlines

American Airlines,United Airlines

Thursday

American Airlines,United Airlines

American Airlines,United Airlines

Friday

American Airlines,United Airlines

American Airlines,United Airlines

Saturday

American Airlines,United Airlines

American Airlines,United Airlines

Sunday

American Airlines,United Airlines

American Airlines,United Airlines

See more direct flights

Direct returns

Washington, D.C. to Louisville Intl

Monday

American Airlines,United Airlines

American Airlines,United Airlines

Tuesday

American Airlines,United Airlines

American Airlines,United Airlines

Wednesday

American Airlines,United Airlines

American Airlines,United Airlines

Thursday

American Airlines,United Airlines

American Airlines,United Airlines

Friday

American Airlines,United Airlines

American Airlines,United Airlines

Saturday

American Airlines,United Airlines

American Airlines,United Airlines

Sunday

American Airlines,United Airlines

American Airlines,United Airlines

See more direct flights

Reviews of the top 3 airlines serving from Louisville to Washington, D.C.

 
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 Washington, D.C.? 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.
8.0
SouthwestOverall score based on 4318 reviews
8.1Boarding
8.6Crew
7.5Entertainment
8.0Comfort
7.0Food
Airline reviews

Long layover between flights to Long Island from BWI - need better coordination between flights

4.0 OkayKenny, Mar 2026
TPA - BWI
Read more Southwest reviews

Long layover between flights to Long Island from BWI - need better coordination between flights

I elected to pay for the upgrades and found very little difference

The new seating arrangement is so over priced for what you get.

The problem with the seat assignments is that there were a lot of rows in the front that were empty but my row at the back was full. Just not so pleasant.

No food or entertainment, just a quick 40 minute flight. A little bumpy due to Santa Ana winds but pilot has no control over that. Good flight and landing!

Good but I prefer choose your own seat. With the new assigned seats they should board from the back I see no advantage to this new boarding. Just like every other airline

I realize they are still working out kinks with the new boarding process, but by the time I boarded in group 5, most of the bins were full. All airlines should better enforce small bags and jackets going under the seats until everyone has boarded.

WiFi was not working and didn’t have a beverage service

Snacks are always pretzels. Why can't you also offer peanuts ?

Flight boarded late after announcing on time boarding. Flight arrived only a little late despite late departure. Had trouble connecting to WiFi

It was okay, the food was good, but after the landing there was not enough time for luggage and security to catch a connection. It was crowded on board.

When I went to check in at the United counter in Barcelona, Spain I had 2 different menat 2 different times in United uniforms (standing around with a couple other employees) ask me if I was traveling alone. The one man asked me 3 different ways if I was traveling alone. I am, 68 yeaers old and have all my faculties. I thought it was weird and it made me feel very uncomfortable. What difference does it make if I was traveling alone or with someone? What if I was a recent widow? That would have been horrible. They never gave me a reason why they needed to know who I was traveling with. I was hesitant to question them because I needed to be on that flight.

We were delayed for about an hour from taking off due to traffic control procedures at the destination airport. But once in the air, the flight went well. The crew members were great and provided cabin service despite moderate turbulence during much of the flight.

Crew was great. 2 1/2 hour delay was due to staff needing "rest" was avoidable and self inflicted as United not willing to hire enough crew to keep flight on time.. Ridiculous. The crew and the passengers both suffered due to this.

Fine not above and beyond as I had a connection that was delayed due to maintenance

Bad food, bad service, cold cabin with no additional blankets when asked for (they told me they don’t provide additional blankets). I’m a frequent traveler and this is one of the worst companies I traveled with (by the way I thought that I booked my ticket with Lufthansa but I didn’t see that the flights were handled by United).

Great other than a couple very drunk guys that for a while kept bumping my seat from behind. The staff did their best to control them. Even refused serving them alcohol and allowed the gal sitting next to them to move.

Good crew. Boarding delays. Almost two hours wait for the bags in DC.

Unfortunately weather delayed our flight waiting for our plane to arrive and due to a little snow time was needed to deice the plane so departure was very delayed and I missed the connecting flight

It was great. There were some issues prior to takeoff. The weather was poor so we had to go through deicing, and we were delayed a bit by the pilots' concern about one of the engines, but that's aviation. The pilots handled everything with aplomb, and kept us apprised

Easy boarding. Rows are smaller but that may be an older and bigger me now :)

Flight has been delayed every time I've ever taken it. Seats uncomfortable. Children behind me yelling the entire flight. Some of this is out of their control but overall just consistently not a great experience.

Poor communication ahead of time about flight delays and old planes/other equipment.

Never going to fly your airline again if it can be avoided.

Not to have gotten delayed by 2+ hours for the fourth straight American flight. They're the worst.

Other than nearly three hour delay for maintenance issues, everything went smooth

Snow delayed boarding several times, which I understand happens. Issue I had was that after we did board, pilot told us we were going to roll out to be de-iced, then on our way. We were de-iced once, taxied to the tarmac and then stopped. Sat for another 30 minutes or so, the another de-icing. Then we rolled out to a parking spot, only to sit for another hour due to a traffic stop in DCA, which I'm confident they knew would happen before we boarded. Pilot gave no updates other than we had to hold, attendants did speak to the crew, but when asked, said the pilot would be updating us. We on the ground in the plane waiting for over 2 hours. They did communicate that bathrooms would be open, but no other news until we left. Would have been better to be up front about status.

Flight was delayed. Not much information on when the flight would take off. Eventually we were told it was maintenance. App was not giving updates.

Flight was on time and there was an empty seat next to me. That makes for a good flight!

Maintenance took a very long time and then we were in a holding pattern. While a one-off maintenance issue is standard, there were delays on both of my flights for this trip based on maintenance issues with the planes, which delayed both flights over 45 minutes. Thankfully, I didn't have any connections but it wasn't an experience that would make me pick AA if I have other options.

Everything you need to know for your flight from Louisville to Washington, D.C.

Information on your arrival and departure airports