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Washington, D.C.

$84+ 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 6/3. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — WAS
mai 6 — mai 131
mar. 5/6
mar. 5/13
1 adult, Economy
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Cheapflights Tip: The best prices from Louisville Intl to Washington, D.C. are usually found in August or July, booked 62 days in advance, depart on a Friday or Thursday 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 mai 1, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$189
(American Airlines)

One-way from

$84
(Mytrip)

Popular in

January

Cheapest in

August

Average price

$254

Good round-trip deal

$240 or less

Good one-way deal

$144 or less
Provider with most accurate pricing for Louisville Intl-Washington, D.C. (WAS) flight deals.
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Provider most trusted by Cheapflights users for Louisville Intl-Washington, D.C. (WAS) flights.
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From Louisville Intl to Washington, D.C. (WAS)
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One-way flight from Louisville Intl to Washington, D.C. (WAS)
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Highest demand for flights based on searches. 1% potential increase in price ($3 potential increase over avg. RT price).
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Cheapest flight prices on average. 0% potential price decrease ($2 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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Price to beat on a round-trip flight from Louisville Intl to Washington, D.C. (WAS).
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Price to beat on a one-way flight from Louisville Intl to Washington, D.C. (WAS).
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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 mai 1, 2025.

This American Airlines deal was found by Cheapflights users on 4/29. 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.
ven. 6/67:30 pmSDF - DCA
Nonstop1h 44mAmerican Airlines
sam. 6/78:00 pmDCA - SDF
Nonstop1h 52mAmerican Airlines
Deal found 4/29$189
This United Airlines deal was found by Cheapflights users on 4/30. 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.
ven. 6/66:00 amSDF - IAD
Nonstop1h 35mUnited Airlines
lun. 6/98:29 amIAD - SDF
Nonstop1h 47mUnited Airlines
Deal found 4/30$189
This Mytrip deal was found by Cheapflights users on 4/30. 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.
ven. 6/612:07 pmSDF - BWI
1 stop12h 11mSpirit Airlines
lun. 6/96:20 amBWI - SDF
1 stop4h 42mSpirit Airlines
Deal found 4/30$191
This Delta deal was found by Cheapflights users on 4/29. 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.
ven. 5/305:55 pmSDF - DCA
1 stop5h 48mDelta
dim. 6/17:59 amDCA - SDF
1 stop3h 50mDelta
Deal found 4/29$204
This Delta deal was found by Cheapflights users on 4/30. 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.
ven. 5/307:09 pmSDF - IAD
1 stop3h 45mDelta
ven. 6/66:00 amIAD - SDF
1 stop4h 08mDelta
Deal found 4/30$204
This Southwest deal was found by Cheapflights users on 4/30. 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.
ven. 6/65:40 pmSDF - BWI
Nonstop1h 40mSouthwest
lun. 6/910:30 pmBWI - SDF
Nonstop1h 45mSouthwest
Deal found 4/30$209
This Delta deal was found by Cheapflights users on 4/29. 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.
mar. 9/2310:45 amSDF - BWI
1 stop4h 55mDelta
mar. 10/76:10 pmBWI - SDF
1 stop4h 20mDelta
Deal found 4/29$221
This Southwest deal was found by Cheapflights users on 4/30. 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.
mar. 7/156:05 amSDF - DCA
2 stops8h 15mSouthwest
mer. 7/166:50 pmDCA - SDF
1 stop5h 05mSouthwest
Deal found 4/30$241
This Mytrip deal was found by Cheapflights users on 4/30. 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.
jeu. 5/1511:23 amSDF - BWI
3 stops35h 18mMultiple Airlines
sam. 5/1712:51 pmBWI - SDF
1 stop19h 28mMultiple Airlines
Deal found 4/30$252
This American Airlines deal was found by Cheapflights users on 4/30. 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.
jeu. 5/156:15 amSDF - BWI
1 stop3h 41mAmerican Airlines
lun. 5/198:17 pmBWI - SDF
1 stop4h 01mAmerican Airlines
Deal found 4/30$269
This United Airlines deal was found by Cheapflights users on 4/29. 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.
jeu. 9/258:45 amSDF - DCA
1 stop5h 33mUnited Airlines
dim. 9/287:00 amDCA - SDF
1 stop4h 34mUnited Airlines
Deal found 4/29$269
This flugladen.de deal was found by Cheapflights users on 4/29. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 5/247:34 amSDF - DCA
Nonstop1h 38mAlaska Airlines
dim. 5/254:59 pmDCA - SDF
Nonstop1h 54mAlaska Airlines
Deal found 4/29$282

Cheapflights Fare Finder

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 mai 1, 2025.
Use the filters below to find and compare flights from Louisville to Washington, D.C. that are best for you.

Fly from

Louisville

Fly to

Washington, D.C.

Route

Depart

Return

Price

LouisvilleWashington, D.C.

SDF - DCA

SDFDCA

Louisville Intl

ven. 6/6

7:30 pm-9:14 pm

Nonstop1h 44m

Washington, D.C. Reagan-National

sam. 6/7

8:00 pm-9:52 pm

Nonstop1h 52m

$189

LouisvilleWashington, D.C.

SDF - IAD

SDFIAD

Louisville Intl

ven. 6/6

6:00 am-7:35 am

Nonstop1h 35m

Washington, D.C. Dulles Intl

sam. 6/7

8:29 am-10:16 am

Nonstop1h 47m

$189

LouisvilleBaltimore

SDF - BWI

SDFBWI

Louisville Intl

ven. 6/6

12:07 pm-12:18 am

1 stop12h 11m

Baltimore/Washington

lun. 6/9

6:20 am-11:02 am

1 stop4h 42m

$191

LouisvilleWashington, D.C.

SDF - IAD

SDFIAD

Louisville Intl

sam. 5/24

7:09 pm-10:54 pm

1 stop3h 45m

Washington, D.C. Dulles Intl

dim. 5/25

6:00 am-10:08 am

1 stop4h 08m

$199

LouisvilleWashington, D.C.

SDF - DCA

SDFDCA

Louisville Intl

ven. 5/30

5:55 pm-11:43 pm

1 stop5h 48m

Washington, D.C. Reagan-National

dim. 6/1

7:59 am-11:49 am

1 stop3h 50m

$204

LouisvilleBaltimore

SDF - BWI

SDFBWI

Louisville Intl

ven. 6/6

5:40 pm-7:20 pm

Nonstop1h 40m

Baltimore/Washington

lun. 6/9

10:30 pm-12:15 am

Nonstop1h 45m

$209

LouisvilleBaltimore

SDF - BWI

SDFBWI

Louisville Intl

mar. 9/23

10:45 am-3:40 pm

1 stop4h 55m

Baltimore/Washington

mar. 10/7

6:10 pm-10:30 pm

1 stop4h 20m

$221

LouisvilleWashington, D.C.

SDF - DCA

SDFDCA

Louisville Intl

mar. 7/15

6:05 am-2:20 pm

2 stops8h 15m

Washington, D.C. Reagan-National

mer. 7/16

6:50 pm-11:55 pm

1 stop5h 05m

$241

LouisvilleBaltimore

SDF - BWI

SDFBWI

Louisville Intl

jeu. 5/15

11:23 am-10:41 pm

3 stops35h 18m

Baltimore/Washington

sam. 5/17

12:51 pm-8:19 am

1 stop19h 28m

$252

LouisvilleBaltimore

SDF - BWI

SDFBWI

Louisville Intl

jeu. 5/15

6:15 am-9:56 am

1 stop3h 41m

Baltimore/Washington

lun. 5/19

8:17 pm-12:18 am

1 stop4h 01m

$269

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 31 results
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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 May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 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 eDreams the most. eDreams 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.

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

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Louisville to Washington, D.C. trip
Airlines
Lufthansa

Lufthansa's Economy Flex includes preferred seating and same-day flight changes.


Lufthansa offers a Free Neighbor Seat for extra space on long-haul flights.

Read more about Lufthansaby Blane Bachelor
United Airlines

Basic Economy on United allows no carry-on bags, only a personal item under the seat.


Prepay checked bags on United at least 24 hours before to save on fees.

Read more about United Airlinesby Harriet Baskas
Our travel experts
Blane Bachelor

Blane Bachelor

Expert on Lufthansa

Blane Bachelor

Blane Bachelor

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.

Read more
Harriet Baskas

Harriet Baskas

Expert on United Airlines

Harriet Baskas

Harriet Baskas

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.

Read more

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.

Cheapflights Insights

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

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 April 25, 2025.

Booking 28 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 $309). Flying from Louisville to Washington, D.C. in June is currently the most expensive (average of $373). 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 mai 1, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 73% 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 March 30, 2025.

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. Sunday at noon 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 mai 1, 2025.

The most flights from SDF to WAS are scheduled on a Thursday (14 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (1 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 mai 1, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest 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.
Alaska Airlines
8.0
Very good
9,968 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,968 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,294 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,934 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Allegiant Air
7.3
Good
734 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 4 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.

  • 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 Spirit Airlines. You may be able to fly from Louisville to Washington, D.C. for 26% 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 $84 on Spirit Airlines. Other airlines that offer cheap prices include American Airlines from $90 and United Airlines from $90 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 Air Canada (95%), Copa Airlines (94%) or Republic Airways (91%) 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 $1,271, our data indicates the cheapest price to be $119. The most popular route (Louisville Intl - Washington, D.C. Reagan-National), is priced around $204.

  • 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 $309). Flying from Louisville to Washington, D.C. in June is currently the most expensive (average of $373). 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
Alexandria
Arlington
Woodbridge
Tysons
Fairfax
Springfield
Rockville
Fredericksburg
Silver Spring
Gaithersburg
Linthicum Heights
Falls Church
Laurel
Easton
Towson
Herndon
Bowie
National Harbor
Oxon Hill
Reston

Browse thousands of different options on Cheapflights for your next trip

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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 mai 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$166Average$290FlexibilityNo cancel feeOn-timeN/A
Spirit AirlinesCheapest$169Average$198FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$188Average$309FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$189Average$289FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$237Average$329FlexibilityNo cancel feeOn-time63%

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