How long is the flight from Louisville to Washington, D.C.?

Airlines like Southwest, Delta, and United Airlines fly from Louisville to Washington, D.C. in about 1h 42m. The time it takes to get you to your destination can typically vary by up to 4h 13m. There are 450 mi between Louisville and Washington, D.C.. This flight may include one or multiple stops.

What are the cheapest airlines flying from Louisville to Washington, D.C. round-trip?

American Airlines, at $189, was found to be the cheapest airline from Louisville to Washington, D.C..Alternate airlines to your destination round-trip include United Airlines and Delta. You may be able to fly from Louisville to Washington, D.C. for 33% less than the average price by searching for these airlines.

What are the cheapest airlines to fly from Louisville to Washington, D.C. one-way?

One-way options have recently been found by users for as low as $104 on Southwest. Other airlines that offer cheap prices include American Airlines from $138 and United Airlines from $165 one-way.

In terms of precipitation, rainfall in Washington, D.C. ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C., use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

What are the most popular routes from Louisville to Washington, D.C.?

Most travelers choose Louisville Intl - Washington, D.C. Reagan-National, Louisville Intl - Washington, D.C. Dulles Intl or Louisville Intl - Baltimore/Washington when deciding on the best route from Louisville to Washington, D.C..

What are the cheapest flights from Louisville to Washington, D.C.?

Looking for the cheapest flight from Louisville to Washington, D.C.? While on average our users pay $2,039, our data indicates the cheapest price to be $144. The most popular route (Louisville Intl - Washington, D.C. Reagan-National), is priced around $188.

What are the most reliable airlines from Louisville to Washington, D.C.?

No one likes to see their flight delayed. When booking a flight from Louisville to Washington, D.C. consider choosing Copa Airlines (91%), Air Canada (90%) or Republic Airways (89%) as they are the most reliable in getting you off to your destination on time.

What are the most popular airlines that fly from Louisville to Washington, D.C.?

The most popular airlines flying from Louisville to Washington, D.C. are American Airlines, United Airlines and Delta. Something to consider prior to booking your flight.

Most accurate provider : When it comes to deals on Louisville-Washington, D.C. flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Louisville-Washington, D.C. flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Louisville-Washington, D.C. flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Louisville-Washington, D.C. flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Louisville-Washington, D.C. flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

What airport do you fly from for flights from Louisville to Washington, D.C.?

Most people fly from Louisville Intl (SDF) if they book a flight from Louisville to Washington, D.C.. On average, Louisville Intl has 4 outbound flights to Washington, D.C. per day from 4 airlines. Louisville Intl is conveniently located just 5.3 mi from Louisville’s city center.

Can I find deals for flights from Louisville to Washington, D.C. that include hotel bookings?

Yes. In addition to deals on Louisville to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Louisville to Washington, D.C.?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Louisville to Washington, D.C..

Can I find deals for business class flights from Louisville to Washington, D.C.?

Yes. Cheapflights offers flight deals from Louisville to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$79+ Cheap Flights from Louisville to Washington, D.C.

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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Louisville Intl to Washington, D.C. are usually found in November or February, booked 52 days in advance, depart on a Friday or Thursday and return on a Saturday

Cheap flight deals from Louisville to Washington, D.C.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Louisville to Washington, D.C.
Explore the most affordable flight options available from Louisville to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 12, 2026.

Sat 9/193:50 pm -

Nonstop1h 35m

Mon 9/218:55 pm -

Nonstop1h 45m

Deal found 8/9

$158

Thu 9/242:15 pm -

1 stop8h 35m

Thu 10/16:15 am -

1 stop3h 55m

Deal found 8/10

$183

Thu 9/176:00 pm -

1 stop5h 55m

Mon 9/216:05 am -

1 stop7h 30m

Deal found 8/10

$188

Sat 9/53:50 pm -

Nonstop1h 35m

Mon 9/78:15 am -

Nonstop1h 45m

Deal found 8/8

$189

Thu 10/296:00 am -

Nonstop1h 48m

Mon 11/28:39 am -

Nonstop2h 08m

Deal found 8/7

$189

Wed 9/1610:05 am -

Nonstop1h 42m

Wed 9/2310:10 pm -

Nonstop1h 49m

Deal found 8/7

$189

Sat 9/53:50 pm -

Nonstop1h 35m

Sun 9/611:35 am -

Nonstop1h 40m

Deal found 8/11

$190

Thu 9/103:20 pm -

2 stops7h 35m

Sat 9/121:00 pm -

1 stop4h 30m

Deal found 8/9

$193

Fri 9/1111:50 am -

Nonstop1h 40m

Mon 10/510:30 pm -

Nonstop1h 40m

Deal found 8/10

$194

Wed 9/211:10 am -

Nonstop1h 48m

Sun 9/67:45 pm -

Nonstop1h 53m

Deal found 8/7

$198

Thu 11/195:48 pm -

Nonstop1h 47m

Mon 11/233:42 pm -

Nonstop2h 08m

Deal found 8/11

$203

Sat 10/172:12 pm -

Nonstop1h 38m

Thu 10/228:35 am -

Nonstop1h 43m

Deal found 8/11

$203

Best flights from Louisville to Washington, D.C.
Discover carefully curated flight deals from Louisville to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 12, 2026.

Thu 9/176:00 pm -

1 stop5h 55m

Mon 9/216:05 am -

1 stop7h 30m

Deal found 8/10

$188

Wed 11/46:00 am -

1 stop3h 57m

Sat 11/75:00 pm -

1 stop6h 59m

Deal found 8/8

$209

Wed 9/1610:05 am -

Nonstop1h 42m

Fri 9/2512:55 pm -

Nonstop1h 44m

Deal found 8/10

$232

Fri 9/1111:50 am -

Nonstop1h 40m

Mon 9/148:15 am -

Nonstop1h 45m

Deal found 8/7

$198

Thu 10/155:59 pm -

1 stop6h 52m

Mon 10/192:11 pm -

1 stop6h 24m

Deal found 8/8

$209

Wed 11/411:06 am -

1 stop6h 04m

Sat 11/73:03 pm -

1 stop4h 07m

Deal found 8/8

$209

Fri 9/1110:05 am -

Nonstop1h 42m

Sun 9/1312:50 pm -

Nonstop1h 47m

Deal found 8/6

$233

Wed 9/26:45 pm -

1 stop4h 20m

Sun 9/67:55 am -

2 stops6h 35m

Deal found 8/10

$213

Sat 10/175:05 pm -

1 stop4h 00m

Sat 10/246:15 am -

1 stop8h 40m

Deal found 8/9

$214

Fri 9/117:05 am -

1 stop7h 06m

Mon 9/145:12 pm -

1 stop6h 47m

Deal found 8/7

$218

Thu 9/1010:05 am -

Nonstop1h 42m

Sun 9/1312:50 pm -

Nonstop1h 47m

Deal found 8/6

$243

Sat 10/105:33 pm -

1 stop5h 34m

Tue 10/135:35 pm -

1 stop3h 38m

Deal found 8/11

$223

Thu 9/36:00 am -

Nonstop1h 35m

Mon 9/712:50 pm -

Nonstop1h 47m

Deal found 8/8

$259

Thu 9/38:30 am -

Nonstop1h 40m

Mon 9/78:15 am -

Nonstop1h 45m

Deal found 8/7

$246

Fri 9/186:00 am -

Nonstop1h 35m

Sun 9/206:25 pm -

Nonstop1h 44m

Deal found 8/6

$259

Wed 11/187:00 am -

1 stop4h 26m

Sun 11/226:10 am -

1 stop3h 49m

Deal found 8/8

$244

Thu 10/15:10 pm -

Nonstop1h 35m

Sun 10/1110:30 pm -

Nonstop1h 40m

Deal found 8/9

$266

Wed 11/183:00 pm -

1 stop5h 12m

Sun 11/226:00 am -

1 stop3h 59m

Deal found 8/8

$244

Sat 10/310:32 am -

1 stop5h 58m

Sun 10/116:05 am -

1 stop3h 52m

Deal found 8/8

$244

Fri 9/43:20 pm -

2 stops7h 00m

Mon 9/78:15 am -

Nonstop1h 45m

Deal found 8/9

$281

Thu 11/121:01 pm -

1 stop5h 31m

Sun 11/156:00 am -

1 stop5h 56m

Deal found 8/11

$251

Fri 10/97:50 am -

2 stops6h 45m

Mon 10/126:15 am -

1 stop3h 55m

Deal found 8/11

$287

Wed 9/2311:04 am -

1 stop6h 26m

Sun 9/276:10 am -

1 stop3h 42m

Deal found 8/6

$263

Thu 9/101:15 pm -

1 stop3h 56m

Sun 9/136:10 am -

1 stop3h 42m

Deal found 8/6

$263

Thu 10/155:59 pm -

1 stop6h 43m

Sun 10/186:05 am -

1 stop3h 52m

Deal found 8/7

$263

Thu 8/2710:34 am -

1 stop6h 00m

Mon 8/315:29 pm -

1 stop3h 50m

Deal found 8/7

$278

Thu 10/11:15 pm -

1 stop5h 13m

Sun 10/116:10 am -

1 stop3h 47m

Deal found 8/9

$279

Thu 11/195:59 pm -

1 stop5h 45m

Mon 11/2311:00 am -

1 stop5h 56m

Deal found 8/9

$279

Fri 1/16:26 pm -

1 stop4h 37m

Tue 1/59:00 am -

1 stop4h 49m

Deal found 8/10

$279

Sun 10/47:55 am -

1 stop3h 40m

Sun 10/116:10 am -

1 stop3h 47m

Deal found 8/8

$279

Last-minute flights from Louisville to Washington, D.C.
Discover last-minute flight deals from Louisville to Washington, D.C.. Data last updated August 12, 2026 and is based on user searches.

Wed 9/211:10 am -

Nonstop1h 48m

Sun 9/67:45 pm -

Nonstop1h 53m

Deal found 8/7

$198

Wed 9/26:45 pm -

1 stop4h 20m

Sun 9/67:55 am -

1 stop7h 15m

Deal found 8/10

$207

Sat 9/53:50 pm -

Nonstop1h 35m

Mon 9/78:15 am -

Nonstop1h 45m

Deal found 8/8

$189

Sat 9/53:50 pm -

Nonstop1h 35m

Sun 9/611:35 am -

Nonstop1h 40m

Deal found 8/11

$190

Thu 9/103:20 pm -

2 stops7h 35m

Sat 9/121:00 pm -

1 stop4h 30m

Deal found 8/9

$193

Fri 9/1111:50 am -

Nonstop1h 40m

Mon 10/510:30 pm -

Nonstop1h 40m

Deal found 8/10

$194

Wed 9/1610:05 am -

Nonstop1h 42m

Wed 9/2310:10 pm -

Nonstop1h 49m

Deal found 8/7

$189

Thu 9/176:00 pm -

1 stop5h 55m

Mon 9/216:05 am -

1 stop7h 30m

Deal found 8/10

$188

Sat 9/193:50 pm -

Nonstop1h 35m

Mon 9/218:55 pm -

Nonstop1h 45m

Deal found 8/9

$158

Thu 9/242:15 pm -

1 stop8h 35m

Thu 10/16:15 am -

1 stop3h 55m

Deal found 8/10

$183

Tue 9/292:47 pm -

1 stop3h 50m

Sat 10/38:00 am -

1 stop4h 25m

Deal found 8/7

$209

Tue 9/291:15 pm -

1 stop3h 56m

Wed 10/75:13 pm -

1 stop4h 00m

Deal found 8/7

$209

One-way flights from Louisville to Washington, D.C.
Search for one-way flight options from Louisville to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated August 12, 2026.

Tue 9/85:00 pm -

Nonstop1h 40m

Deal found 8/9

$79

Fri 9/1111:50 am -

Nonstop1h 40m

Deal found 8/11

$86

Thu 9/101:45 pm -

1 stop8h 40m

Deal found 8/11

$94

Mon 8/318:30 am -

Nonstop1h 40m

Deal found 8/9

$95

Wed 9/21:15 pm -

2 stops8h 50m

Deal found 8/10

$99

Thu 10/87:50 pm -

1 stop3h 40m

Deal found 8/9

$100

Thu 9/179:09 pm -

1 stop25h 34m

Deal found 8/10

$104

Tue 10/610:37 am -

1 stop6h 14m

Deal found 8/10

$105

Tue 9/110:50 am -

1 stop7h 10m

Deal found 8/9

$105

Thu 9/1011:50 am -

Nonstop1h 40m

Deal found 8/11

$108

Thu 9/179:09 pm -

1 stop15h 54m

Deal found 8/8

$111

Wed 9/95:50 pm -

1 stop3h 40m

Deal found 8/11

$112

Find flight deals from Louisville to Washington, D.C.

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$158 (Southwest)
One-way from	$79 (Southwest)
Popular in	June
Cheapest in	November
Average price	$299
Good round-trip deal	$259 or less
Good one-way deal	$228 or less

Provider with most accurate pricing for Louisville Intl-Washington, D.C. (WAS) flight deals.

Search Deals

Provider most trusted by Cheapflights users for Louisville Intl-Washington, D.C. (WAS) flights.

Search Deals

From Louisville Intl to Washington, D.C. (WAS)

Search Deals

One-way flight from Louisville Intl to Washington, D.C. (WAS)

Search Deals

Highest demand for flights based on searches. 10% potential increase in price ($31 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in August 2026

Search Deals

Price to beat on a round-trip flight from Louisville Intl to Washington, D.C. (WAS).

Search Deals

Price to beat on a one-way flight from Louisville Intl to Washington, D.C. (WAS).

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Louisville to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LouisvilleWashington, D.C.

SDF Louisville Intl - DCA Washington, D.C. Reagan-National

SDFDCA

Louisville Intl

Thu 9/17

6:00 pm-11:55 pm

1 stop5h 55m

Washington, D.C. Reagan-National

Mon 9/21

6:05 am-1:35 pm

1 stop7h 30m

$188

LouisvilleBaltimore

SDF Louisville Intl - BWI Baltimore/Washington

SDFBWI

Louisville Intl

Fri 9/11

11:50 am-1:30 pm

Nonstop1h 40m

Baltimore/Washington

Mon 9/14

8:15 am-10:00 am

Nonstop1h 45m

$198

LouisvilleBaltimore

SDF Louisville Intl - BWI Baltimore/Washington

SDFBWI

Louisville Intl

Wed 11/4

6:00 am-9:57 am

1 stop3h 57m

Baltimore/Washington

Sat 11/7

5:00 pm-11:59 pm

1 stop6h 59m

$209

LouisvilleBaltimore

SDF Louisville Intl - BWI Baltimore/Washington

SDFBWI

Louisville Intl

Thu 10/15

5:59 pm-12:51 am

1 stop6h 52m

Baltimore/Washington

Mon 10/19

2:11 pm-8:35 pm

1 stop6h 24m

$209

LouisvilleWashington, D.C.

SDF Louisville Intl - IAD Washington, D.C. Dulles Intl

SDFIAD

Louisville Intl

Wed 11/4

11:06 am-5:10 pm

1 stop6h 04m

Washington, D.C. Dulles Intl

Sat 11/7

3:03 pm-7:10 pm

1 stop4h 07m

$209

LouisvilleWashington, D.C.

SDF Louisville Intl - DCA Washington, D.C. Reagan-National

SDFDCA

Louisville Intl

Wed 9/2

6:45 pm-11:05 pm

1 stop4h 20m

Washington, D.C. Reagan-National

Sun 9/6

7:55 am-2:30 pm

2 stops6h 35m

$213

LouisvilleWashington, D.C.

SDF Louisville Intl - DCA Washington, D.C. Reagan-National

SDFDCA

Louisville Intl

Sat 10/17

5:05 pm-9:05 pm

1 stop4h 00m

Washington, D.C. Reagan-National

Sat 10/24

6:15 am-2:55 pm

1 stop8h 40m

$214

LouisvilleWashington, D.C.

SDF Louisville Intl - IAD Washington, D.C. Dulles Intl

SDFIAD

Louisville Intl

Fri 9/11

7:05 am-2:11 pm

1 stop7h 06m

Washington, D.C. Dulles Intl

Mon 9/14

5:12 pm-11:59 pm

1 stop6h 47m

$218

LouisvilleWashington, D.C.

SDF Louisville Intl - DCA Washington, D.C. Reagan-National

SDFDCA

Louisville Intl

Sat 10/10

5:33 pm-11:07 pm

1 stop5h 34m

Washington, D.C. Reagan-National

Tue 10/13

5:35 pm-9:13 pm

1 stop3h 38m

$223

LouisvilleWashington, D.C.

SDF Louisville Intl - IAD Washington, D.C. Dulles Intl

SDFIAD

Louisville Intl

Wed 9/16

10:05 am-11:47 am

Nonstop1h 42m

Washington, D.C. Dulles Intl

Fri 9/25

12:55 pm-2:39 pm

Nonstop1h 44m

$232

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/10

Showing 1-10 of 56 resultsSorted by cheapest first

...

Compare providers for flights from Louisville to Washington, D.C.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Louisville to Washington, D.C. in August.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
JustAirTicket	Price Accuracy-	Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Louisville-Washington, D.C. flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Louisville-Washington, D.C. flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Louisville-Washington, D.C. flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Louisville-Washington, D.C. flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Louisville-Washington, D.C. flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Louisville to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Louisville with our price prediction graph.

SDF-WAS

SDF-BWI

SDF-DCA

SDF-IAD

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

SDF-WAS

SDF-BWI

SDF-DCA

SDF-IAD

What is the cheapest month to book a flight from Louisville to Washington, D.C.?

Currently, November is the cheapest month in which you can book a flight from Louisville to Washington, D.C. (average of $260). Flying from Louisville to Washington, D.C. in June is currently the most expensive (average of $332). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SDF to WAS?

Unlike at noon, when flights are generally more expensive, you can save up to 43% on flights from Louisville to Washington, D.C. by exploring options for tickets in the afternoon.

How much does it cost to fly round-trip from Louisville to Washington, D.C.?

Airfare is below average for this route at the moment.

Louisville to Washington, D.C. flights typically cost between $249 and $309 in September.
The cheapest round-trip price found within the last 5 days was $158 on Southwest (Sep 19-Sep 21).

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

Booking 50 days in advance of your planned departure date is, on average, the best time to get cheap flights from Louisville to Washington, D.C.. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Travelers seeking maximum savings on their Louisville to Washington, D.C. flight should consider departing on Wednesday at noon when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

The best insider tips for Louisville to Washington, D.C. flights

Cheapflights partnered with top experts to bring you the best recommendations for your Louisville to Washington, D.C. trip

Our travel experts

Blane Bachelor

Expert on Lufthansa

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Harriet Baskas

Expert on United 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.

See what other customers who have flown with Southwest,United Airlines, andAmerican Airlines from Louisville to Washington, D.C. have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.0

Very good

4,220 reviews

Reviews

1 / 20

8.0

Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.

Southwest

8.0

Very good

4,220 reviews

Southwest

8.0

Very good

4,220 reviews

Reviews

1 / 20

8.0

Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.

United Airlines

7.4

Good

10,104 reviews

Southwest

8.0

Very good

4,220 reviews

Reviews

1 / 20

8.0

Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.

American Airlines

7.1

Good

11,903 reviews

Southwest

8.0

Very good

4,220 reviews

Reviews

1 / 20

8.0

Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.

Related info for your journey

What airport do you fly from for flights from Louisville to Washington, D.C.?
Most people fly from Louisville Intl (SDF) if they book a flight from Louisville to Washington, D.C.. On average, Louisville Intl has 4 outbound flights to Washington, D.C. per day from 4 airlines. Louisville Intl is conveniently located just 5.3 mi from Louisville’s city center.
How long is the flight from Louisville to Washington, D.C.?
Airlines like Southwest, Delta, and United Airlines fly from Louisville to Washington, D.C. in about 1h 42m. The time it takes to get you to your destination can typically vary by up to 4h 13m. There are 450 mi between Louisville and Washington, D.C.. This flight may include one or multiple stops.
What are the cheapest airlines flying from Louisville to Washington, D.C. round-trip?
American Airlines, at $189, was found to be the cheapest airline from Louisville to Washington, D.C..Alternate airlines to your destination round-trip include United Airlines and Delta. You may be able to fly from Louisville to Washington, D.C. for 33% less than the average price by searching for these airlines.
What are the cheapest airlines to fly from Louisville to Washington, D.C. one-way?
One-way options have recently been found by users for as low as $104 on Southwest. Other airlines that offer cheap prices include American Airlines from $138 and United Airlines from $165 one-way.
What are the most popular routes from Louisville to Washington, D.C.?
Most travelers choose Louisville Intl - Washington, D.C. Reagan-National, Louisville Intl - Washington, D.C. Dulles Intl or Louisville Intl - Baltimore/Washington when deciding on the best route from Louisville to Washington, D.C..
What are the most reliable airlines from Louisville to Washington, D.C.?
No one likes to see their flight delayed. When booking a flight from Louisville to Washington, D.C. consider choosing Copa Airlines (91%), Air Canada (90%) or Republic Airways (89%) as they are the most reliable in getting you off to your destination on time.
What are the cheapest flights from Louisville to Washington, D.C.?
Looking for the cheapest flight from Louisville to Washington, D.C.? While on average our users pay $2,039, our data indicates the cheapest price to be $144. The most popular route (Louisville Intl - Washington, D.C. Reagan-National), is priced around $188.
Can I find deals for flights from Louisville to Washington, D.C. that include hotel bookings?
Yes. In addition to deals on Louisville to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Louisville to Washington, D.C.?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Louisville to Washington, D.C..
Can I find deals for business class flights from Louisville to Washington, D.C.?
Yes. Cheapflights offers flight deals from Louisville to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Louisville to Washington, D.C.?
Currently, November is the cheapest month in which you can book a flight from Louisville to Washington, D.C. (average of $260). Flying from Louisville to Washington, D.C. in June is currently the most expensive (average of $332). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Top 4 airlines flying from Louisville to Washington, D.C.

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$189	Average$299	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$189	Average$282	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$208	Average$353	FlexibilityNo cancel fee	On-timeN/A
Southwest	Cheapest$214	Average$395	FlexibilityNo cancel fee	On-time63%

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$79+ Cheap flights from Louisville (SDF) to Washington, D.C. (WAS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/8. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap flight deals from Louisville to Washington, D.C.

Cheapest flights from Louisville to Washington, D.C.Explore the most affordable flight options available from Louisville to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 12, 2026.

Explore the most affordable flight options available from Louisville to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 12, 2026.

Best flights from Louisville to Washington, D.C.Discover carefully curated flight deals from Louisville to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 12, 2026.

Discover carefully curated flight deals from Louisville to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 12, 2026.

Last-minute flights from Louisville to Washington, D.C.Discover last-minute flight deals from Louisville to Washington, D.C.. Data last updated August 12, 2026 and is based on user searches.

Discover last-minute flight deals from Louisville to Washington, D.C.. Data last updated August 12, 2026 and is based on user searches.

One-way flights from Louisville to Washington, D.C.Search for one-way flight options from Louisville to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated August 12, 2026.

Search for one-way flight options from Louisville to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated August 12, 2026.

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Use the filters below to find and compare flights from Louisville to Washington, D.C. that are best for you.

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Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Louisville to Washington, D.C. in August.

Best time to book a flight from Louisville to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Louisville with our price prediction graph.

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What is the cheapest month to book a flight from Louisville to Washington, D.C.?

What is the cheapest time of day to fly from SDF to WAS?

Find hourly flight availability from Louisville to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 12, 2026.

Unlike at noon, when flights are generally more expensive, you can save up to 43% on flights from Louisville to Washington, D.C. by exploring options for tickets in the afternoon.

How much does it cost to fly round-trip from Louisville to Washington, D.C.?

Airfare is below average for this route at the moment.

Louisville to Washington, D.C. flights typically cost between $249 and $309 in September.The cheapest round-trip price found within the last 5 days was $158 on Southwest (Sep 19-Sep 21).

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

Booking 50 days in advance of your planned departure date is, on average, the best time to get cheap flights from Louisville to Washington, D.C.. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Use this chart to determine the cheapest time to fly round-trip from Louisville to Washington, D.C.. Price data was last updated on August 8, 2026.

Travelers seeking maximum savings on their Louisville to Washington, D.C. flight should consider departing on Wednesday at noon when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

The best insider tips for Louisville to Washington, D.C. flights

AI-powered summary based on content written by travel experts. AI can make mistakes.

Cheapflights partnered with top experts to bring you the best recommendations for your Louisville to Washington, D.C. trip

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Reviews of airlines servicing Washington, D.C.

See what other customers who have flown with Southwest,United Airlines, andAmerican Airlines from Louisville to Washington, D.C. have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What airport do you fly from for flights from Louisville to Washington, D.C.?

How long is the flight from Louisville to Washington, D.C.?

What are the cheapest airlines flying from Louisville to Washington, D.C. round-trip?

What are the cheapest airlines to fly from Louisville to Washington, D.C. one-way?

What are the most popular routes from Louisville to Washington, D.C.?

What are the most reliable airlines from Louisville to Washington, D.C.?

What are the cheapest flights from Louisville to Washington, D.C.?

Can I find deals for flights from Louisville to Washington, D.C. that include hotel bookings?

How can I find direct flights from Louisville to Washington, D.C.?

Can I find deals for business class flights from Louisville to Washington, D.C.?

What is the cheapest month to book a flight from Louisville to Washington, D.C.?

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Complete your trip to Washington, D.C. by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Louisville to Washington, D.C. by cabin class

Find flights from Louisville to Washington, D.C., based on your preferred cabin class, be it economy, premium economy, business, or first class.

Louisville and Washington, D.C. flights

Browse other Louisville and Washington, D.C. flight options. Last updated on August 12, 2026.

Other flights from Louisville

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Louisville to Washington, D.C. flights

Consider these flights traveling from Louisville to Washington, D.C..

Cheapest flights from Louisville to Washington, D.C.
Explore the most affordable flight options available from Louisville to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 12, 2026.

Best flights from Louisville to Washington, D.C.
Discover carefully curated flight deals from Louisville to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 12, 2026.

Last-minute flights from Louisville to Washington, D.C.
Discover last-minute flight deals from Louisville to Washington, D.C.. Data last updated August 12, 2026 and is based on user searches.

One-way flights from Louisville to Washington, D.C.
Search for one-way flight options from Louisville to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated August 12, 2026.

Louisville to Washington, D.C. flights typically cost between $249 and $309 in September.
The cheapest round-trip price found within the last 5 days was $158 on Southwest (Sep 19-Sep 21).