HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Washington, D.C.

$90+ 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 2/8. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — WAS
Jan 25 — Feb 11
Sat 1/25
Sat 2/1
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Louisville to Washington, D.C. with Cheapflights

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.

The best prices from Louisville Intl to Washington, D.C. are usually found in August or May, booked 62 days in advance, depart on a Wednesday or Saturday and return on a Saturday

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

Discover tips and strategies to find the most affordable flight options for your journey from Louisville (SDF) to Washington, D.C. (WAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$194
(United Airlines)

One-way from

$90
(American Airlines)

Popular in

June

Cheapest in

August

Average price

$259
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
High demand for flights, 0% potential price rise
Search Deals
Best time to find cheap flights, 1% potential price drop
Search Deals
Average for round-trip flights in January 2025
Search Deals

Find 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 January 20, 2025.

This United Airlines deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/810:05 amSDF - IAD
Nonstop1h 37mUnited Airlines
Wed 3/128:35 amIAD - SDF
1 stop4h 57mUnited Airlines
Deal found 1/19$194
This Delta deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/22:46 pmSDF - DCA
1 stop5h 49mDelta
Wed 4/96:00 amDCA - SDF
1 stop5h 56mDelta
Deal found 1/19$199
This Delta deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/116:20 pmSDF - IAD
1 stop4h 53mDelta
Wed 2/127:25 amIAD - SDF
1 stop4h 15mDelta
Deal found 1/19$199
This Mytrip deal was found by Cheapflights users on 1/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/37:25 pmSDF - BWI
1 stop15h 34mSpirit Airlines
Fri 2/78:04 pmBWI - SDF
2 stops22h 26mSpirit Airlines
Deal found 1/18$202
This American Airlines deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/111:14 amSDF - DCA
Nonstop1h 45mAmerican Airlines
Wed 2/54:59 pmDCA - SDF
Nonstop1h 49mAmerican Airlines
Deal found 1/19$214
This Southwest deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/113:30 pmSDF - BWI
Nonstop1h 35mSouthwest
Wed 2/1211:00 amBWI - SDF
Nonstop1h 55mSouthwest
Deal found 1/19$267
This Southwest deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/87:30 amSDF - DCA
2 stops6h 25mSouthwest
Sun 2/910:00 amDCA - SDF
1 stop9h 00mSouthwest
Deal found 1/19$269
This American Airlines deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/147:50 pmSDF - IAD
1 stop4h 03mAmerican Airlines
Sun 2/166:30 amIAD - SDF
1 stop4h 59mAmerican Airlines
Deal found 1/19$269
This Mytrip deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/87:25 pmSDF - BWI
2 stops21h 17mMultiple Airlines
Sun 2/98:04 pmBWI - SDF
2 stops20h 40mMultiple Airlines
Deal found 1/19$282
This United Airlines deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/295:45 pmSDF - DCA
1 stop6h 12mUnited Airlines
Tue 4/17:00 amDCA - SDF
1 stop7h 03mUnited Airlines
Deal found 1/19$291
This Mytrip deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/69:38 pmSDF - IAD
2 stops15h 12mMultiple Airlines
Sun 3/98:53 pmIAD - SDF
1 stop13h 24mMultiple Airlines
Deal found 1/20$328
This United Airlines deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/27:00 amSDF - BWI
1 stop6h 51mUnited Airlines
Wed 7/165:11 pmBWI - SDF
1 stop4h 58mUnited Airlines
Deal found 1/19$340

Find flights from Louisville to Washington, D.C. within your budget

Customize your flight search to find flights from Louisville to Washington, D.C. that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 20, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

LouisvilleWashington, D.C.

SDF - DCA

SDFDCA

Louisville Intl

Tue 2/4

6:00 am-12:22 pm

1 stop6h 22m

Washington, D.C. Reagan-National

Sat 2/8

1:00 pm-8:37 pm

1 stop7h 37m

$194

LouisvilleWashington, D.C.

SDF - IAD

SDFIAD

Louisville Intl

Sat 3/8

10:05 am-11:42 am

Nonstop1h 37m

Washington, D.C. Dulles Intl

Wed 3/12

8:35 am-1:32 pm

1 stop4h 57m

$194

LouisvilleWashington, D.C.

SDF - DCA

SDFDCA

Louisville Intl

Wed 4/2

4:59 pm-10:34 pm

1 stop5h 35m

Washington, D.C. Reagan-National

Tue 4/8

6:59 am-11:58 am

1 stop4h 59m

$199

LouisvilleWashington, D.C.

SDF - IAD

SDFIAD

Louisville Intl

Wed 4/2

6:00 pm-11:00 pm

1 stop5h 00m

Washington, D.C. Dulles Intl

Tue 4/8

5:22 pm-9:34 pm

1 stop4h 12m

$199

LouisvilleBaltimore

SDF - BWI

SDFBWI

Louisville Intl

Mon 2/3

7:25 pm-10:59 am

1 stop15h 34m

Baltimore/Washington

Fri 2/7

8:04 pm-6:30 pm

2 stops22h 26m

$202

LouisvilleWashington, D.C.

SDF - DCA

SDFDCA

Louisville Intl

Sat 2/1

11:14 am-12:59 pm

Nonstop1h 45m

Washington, D.C. Reagan-National

Wed 2/5

4:59 pm-6:48 pm

Nonstop1h 49m

$214

LouisvilleBaltimore

SDF - BWI

SDFBWI

Louisville Intl

Tue 2/11

3:30 pm-5:05 pm

Nonstop1h 35m

Baltimore/Washington

Wed 2/12

11:00 am-12:55 pm

Nonstop1h 55m

$267

LouisvilleWashington, D.C.

SDF - DCA

SDFDCA

Louisville Intl

Sat 2/8

7:30 am-1:55 pm

2 stops6h 25m

Washington, D.C. Reagan-National

Sun 2/9

10:00 am-7:00 pm

1 stop9h 00m

$269

LouisvilleBaltimore

SDF - BWI

SDFBWI

Louisville Intl

Sat 2/8

7:25 pm-4:42 pm

2 stops21h 17m

Baltimore/Washington

Sun 2/9

8:04 pm-4:44 pm

2 stops20h 40m

$282

LouisvilleWashington, D.C.

SDF - IAD

SDFIAD

Louisville Intl

Thu 3/27

5:00 am-8:50 am

1 stop3h 50m

Washington, D.C. Dulles Intl

Mon 3/31

5:27 pm-12:34 am

1 stop7h 07m

$310

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/19

Showing 1-10 of 29 results
1
2
3

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

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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy2 starsTrust Score*3 stars

*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.
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.

Travel insights for flights from Louisville to Washington, D.C.

Get recent, data-driven insights about flights from Louisville to Washington, D.C. including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a round-trip flight from Louisville to Washington, D.C.. Price data was last updated on January 17, 2025.

Booking 41 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 month to book a flight from Louisville to Washington, D.C.?

Currently, August is the cheapest month in which you can book a flight from Louisville to Washington, D.C. (average of $241). Flying from Louisville to Washington, D.C. in March is currently the most expensive (average of $290). 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?

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 January 20, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 18% on flights from Louisville to Washington, D.C. by exploring options for tickets in the evening.

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 December 16, 2024.

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

Weekly flight availability from Louisville to Washington, D.C.

Explore weekly flight availability from Louisville to Washington, D.C.. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated January 20, 2025.

The most flights from SDF to WAS are scheduled on a Monday (9 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (9 on average).

Rainfall in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average rainfall totals by month.

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.

Temperature in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature totals by month.

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).

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Washington, D.C.. Reviews last updated January 20, 2025.
Read reviews from past customers who have flown Southwest, United Airlines and Delta from Louisville to Washington, D.C.. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,659 reviews

Crew

8.7

Entertainment

7.7

Food

7.2

Boarding

8.2

Overall

8.1

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,659 reviews
Southwest
8.1
Very good
4,659 reviews

Crew

8.7

Entertainment

7.7

Food

7.2

Boarding

8.2

Overall

8.1

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,521 reviews
Southwest
8.1
Very good
4,659 reviews

Crew

8.7

Entertainment

7.7

Food

7.2

Boarding

8.2

Overall

8.1

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,982 reviews
Southwest
8.1
Very good
4,659 reviews

Crew

8.7

Entertainment

7.7

Food

7.2

Boarding

8.2

Overall

8.1

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Allegiant Air
7.4
Good
801 reviews
Southwest
8.1
Very good
4,659 reviews

Crew

8.7

Entertainment

7.7

Food

7.2

Boarding

8.2

Overall

8.1

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,659 reviews

Crew

8.7

Entertainment

7.7

Food

7.2

Boarding

8.2

Overall

8.1

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Related info for your journey

Find useful and relevant information for your journey from Louisville to Washington, D.C.. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • 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 9 outbound flights to Washington, D.C. per day from 5 airlines. Louisville Intl is conveniently located just 5.3 mi from Louisville’s city center.

  • How popular is this Louisville to Washington, D.C. flight route?

    This flight path from Louisville Intl to Washington, D.C. was viewed by 5 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    United Airlines, at $194, was found to be the cheapest airline from Louisville to Washington, D.C..Alternate airlines to your destination round-trip include Delta and Spirit Airlines. You may be able to fly from Louisville to Washington, D.C. for 22% 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 $90 on American Airlines. Other airlines that offer cheap prices include United Airlines from $90 and Spirit Airlines from $91 one-way.

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

    Most travelers choose Louisville Intl - Washington, D.C. Dulles Intl, Louisville Intl - Baltimore/Washington or Louisville Intl - Washington, D.C. Reagan-National 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 $331, our data indicates the cheapest price to be $183. The most popular route (Louisville Intl - Washington, D.C. Dulles Intl), is priced around $179.

  • 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, August is the cheapest month in which you can book a flight from Louisville to Washington, D.C. (average of $241). Flying from Louisville to Washington, D.C. in March is currently the most expensive (average of $290). 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.

See more FAQs

Traveling to a place near Louisville?

Book flights to Louisville if you plan to visit one of these locations
Fairfax
Arlington
Alexandria
Springfield
Silver Spring
Rockville
Tysons
Gaithersburg
Fredericksburg
Linthicum Heights
Laurel
Falls Church
Greenbelt
Easton
Oxon Hill
Herndon
Woodbridge
Bowie
Reston
National Harbor

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 5 airlines flying from Louisville to Washington, D.C.

Discover the top 5 airlines that operate flights from Louisville to Washington, D.C.. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$115Average$185FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$158Average$267FlexibilityNo cancel feeOn-time69%
DeltaCheapest$166Average$282FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$184Average$310FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$238Average$330FlexibilityNo cancel feeOn-time63%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.