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$76+ Cheap flights from Washington, D.C. (WAS) to Louisville (SDF)

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 5/30. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SDF
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. to Louisville Intl are usually found in January or July, booked 90 days in advance, depart on a Saturday or Tuesday and return on a Friday

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

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) to Louisville (SDF). 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 May 1, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$189
(American Airlines)

One-way from

$76
(Cheapflightsfares)

Popular in

April

Cheapest in

January

Average price

$331

Good round-trip deal

$249 or less

Good one-way deal

$155 or less
Provider with most accurate pricing for Washington, D.C. (WAS)-Louisville Intl flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Louisville Intl flights.
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From Washington, D.C. (WAS) to Louisville Intl
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One-way flight from Washington, D.C. (WAS) to Louisville Intl
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Highest demand for flights based on searches. 9% potential increase in price ($30 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($7 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 Washington, D.C. (WAS) to Louisville Intl.
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Price to beat on a one-way flight from Washington, D.C. (WAS) to Louisville Intl.
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Find flight deals from Washington, D.C. to Louisville

Cheapest flights from Washington, D.C. to Louisville
Explore the most affordable flight options available from Washington, D.C. to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2025.

This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/236:35 pmBWI - SDF
1 stop18h 37mSpirit Airlines
Mon 5/2612:07 pmSDF - BWI
1 stop22h 57mSpirit Airlines
Deal found 4/30$165
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/109:45 pmBWI - SDF
Nonstop1h 45mSouthwest
Fri 6/1310:50 amSDF - BWI
Nonstop1h 35mSouthwest
Deal found 4/29$209
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.
Fri 6/66:00 amDCA - SDF
1 stop4h 12mDelta
Mon 6/93:24 pmSDF - DCA
1 stop4h 21mDelta
Deal found 4/30$209
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.
Fri 6/66:00 amIAD - SDF
1 stop4h 12mDelta
Mon 6/95:37 pmSDF - IAD
1 stop4h 34mDelta
Deal found 4/30$209
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.
Mon 6/237:59 pmDCA - SDF
Nonstop1h 51mAmerican Airlines
Sat 6/287:30 amSDF - DCA
Nonstop1h 40mAmerican Airlines
Deal found 4/30$210
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.
Thu 10/231:05 pmIAD - SDF
Nonstop1h 45mUnited Airlines
Sun 10/266:00 amSDF - IAD
Nonstop1h 35mUnited Airlines
Deal found 4/29$218
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.
Thu 7/108:18 amBWI - SDF
1 stop5h 58mDelta
Mon 7/143:21 pmSDF - BWI
1 stop5h 27mDelta
Deal found 4/30$229
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.
Sat 6/147:49 pmBWI - SDF
1 stop4h 10mAmerican Airlines
Sat 6/218:11 pmSDF - BWI
1 stop3h 59mAmerican Airlines
Deal found 4/30$230
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.
Fri 6/611:54 amBWI - SDF
2 stops32h 55mMultiple Airlines
Mon 6/912:07 pmSDF - BWI
1 stop12h 11mMultiple Airlines
Deal found 4/30$231
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.
Fri 10/249:25 amDCA - SDF
1 stop7h 10mSouthwest
Mon 10/2712:05 pmSDF - DCA
1 stop8h 50mSouthwest
Deal found 4/30$239
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.
Thu 5/298:22 pmIAD - SDF
1 stop14h 14mMultiple Airlines
Sun 6/111:23 amSDF - IAD
2 stops27h 00mMultiple Airlines
Deal found 4/30$240
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.
Thu 5/225:26 pmIAD - SDF
1 stop6h 52mAmerican Airlines
Sun 5/256:54 amSDF - IAD
1 stop6h 28mAmerican Airlines
Deal found 4/30$305

Cheapflights Fare Finder

Customize your flight search to find flights from Washington, D.C. to Louisville 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 May 1, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Louisville that are best for you.

Fly from

Washington, D.C.

Fly to

Louisville

Route

Depart

Return

Price

BaltimoreLouisville

BWI - SDF

BWISDF

Baltimore/Washington

Fri 5/23

6:35 pm-1:12 pm

1 stop18h 37m

Louisville Intl

Mon 5/26

12:07 pm-11:04 am

1 stop22h 57m

$165

BaltimoreLouisville

BWI - SDF

BWISDF

Baltimore/Washington

Tue 6/10

9:45 pm-11:30 pm

Nonstop1h 45m

Louisville Intl

Fri 6/13

10:50 am-12:25 pm

Nonstop1h 35m

$209

Washington, D.C.Louisville

DCA - SDF

DCASDF

Washington, D.C. Reagan-National

Fri 6/6

6:00 am-10:12 am

1 stop4h 12m

Louisville Intl

Mon 6/9

3:24 pm-7:45 pm

1 stop4h 21m

$209

Washington, D.C.Louisville

IAD - SDF

IADSDF

Washington, D.C. Dulles Intl

Fri 6/6

6:00 am-10:12 am

1 stop4h 12m

Louisville Intl

Mon 6/9

5:37 pm-10:11 pm

1 stop4h 34m

$209

Washington, D.C.Louisville

DCA - SDF

DCASDF

Washington, D.C. Reagan-National

Mon 6/23

7:59 pm-9:50 pm

Nonstop1h 51m

Louisville Intl

Sat 6/28

7:30 am-9:10 am

Nonstop1h 40m

$210

Washington, D.C.Louisville

IAD - SDF

IADSDF

Washington, D.C. Dulles Intl

Thu 10/23

1:05 pm-2:50 pm

Nonstop1h 45m

Louisville Intl

Sun 10/26

6:00 am-7:35 am

Nonstop1h 35m

$218

BaltimoreLouisville

BWI - SDF

BWISDF

Baltimore/Washington

Thu 7/10

8:18 am-2:16 pm

1 stop5h 58m

Louisville Intl

Mon 7/14

3:21 pm-8:48 pm

1 stop5h 27m

$229

BaltimoreLouisville

BWI - SDF

BWISDF

Baltimore/Washington

Sat 6/14

7:49 pm-11:59 pm

1 stop4h 10m

Louisville Intl

Sat 6/21

8:11 pm-12:10 am

1 stop3h 59m

$230

BaltimoreLouisville

BWI - SDF

BWISDF

Baltimore/Washington

Fri 6/6

11:54 am-8:49 pm

2 stops32h 55m

Louisville Intl

Mon 6/9

12:07 pm-12:18 am

1 stop12h 11m

$231

Washington, D.C.Louisville

DCA - SDF

DCASDF

Washington, D.C. Reagan-National

Fri 10/24

9:25 am-4:35 pm

1 stop7h 10m

Louisville Intl

Mon 10/27

12:05 pm-8:55 pm

1 stop8h 50m

$239

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 28 results
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Compare providers for flights from Washington, D.C. to Louisville

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

Have a flexible travel schedule? Discover the best time to fly to Louisville from Washington, D.C. 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 Washington, D.C. to Louisville

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

Use this chart to determine the optimal time to book a round-trip flight from Washington, D.C. to Louisville. Price data was last updated on April 25, 2025.

The best time to book flights from Washington, D.C. to Louisville is 90 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. to Louisville (average of $299). Flying from Washington, D.C. to Louisville in April is currently the most expensive (average of $369). 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 WAS to SDF?

Find hourly flight availability from Washington, D.C. to Louisville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 1, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 13% on flights from Washington, D.C. to Louisville by exploring options for tickets in the morning.

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

Use this chart to determine the cheapest time to fly round-trip from Washington, D.C. to Louisville. Price data was last updated on March 30, 2025.

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

Rainfall in Louisville by month

Plan your trip to Louisville by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Louisville ranges from 3.1 - 5.3 inches per month. May is typically the wettest month, when rainfall can reach 5.3 in. September is typically the driest time to visit Louisville when rainfall is around 3.1 in.

Temperature in Louisville by month

Plan your trip to Louisville by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Louisville, 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 78.8 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 Louisville

Get insights into the airlines that provide service to Louisville. 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 Louisville. Reviews last updated May 1, 2025.
See what other customers who have flown with Southwest, Delta and United Airlines from Washington, D.C. to Louisville have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,294 reviews

Comfort

8.0

Boarding

8.2

Entertainment

7.6

Food

7.1

Crew

8.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Southwest
8.0
Very good
4,294 reviews
Southwest
8.0
Very good
4,294 reviews

Comfort

8.0

Boarding

8.2

Entertainment

7.6

Food

7.1

Crew

8.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Delta
8.0
Very good
7,934 reviews
Southwest
8.0
Very good
4,294 reviews

Comfort

8.0

Boarding

8.2

Entertainment

7.6

Food

7.1

Crew

8.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
United Airlines
7.4
Good
8,696 reviews
Southwest
8.0
Very good
4,294 reviews

Comfort

8.0

Boarding

8.2

Entertainment

7.6

Food

7.1

Crew

8.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Allegiant Air
7.3
Good
734 reviews
Southwest
8.0
Very good
4,294 reviews

Comfort

8.0

Boarding

8.2

Entertainment

7.6

Food

7.1

Crew

8.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,294 reviews

Comfort

8.0

Boarding

8.2

Entertainment

7.6

Food

7.1

Crew

8.6

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to Louisville. 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 into for flights to Louisville from Washington, D.C.?

    Louisville Intl (SDF) is the airport you will fly into if you book a flight from Washington, D.C. to Louisville. You should not have trouble finding flights to Louisville Intl from Washington, D.C.; the airport handles an average of 4 inbound flights from Washington, D.C. per day. You should also have plenty of airline options to choose from since 4 airlines have flights to the Louisville airport from Washington, D.C.. It is only a 5.3 mi journey from Louisville Intl (SDF) to Louisville’s city center.

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

    According to our current data, American Airlines ($189), Spirit Airlines ($207), and Southwest ($209) offers the cheapest pricing from Washington, D.C. to Louisville. You may be able to fly from Washington, D.C. to Louisville for 39% less than the average price by searching for these airlines.

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

    One-way options have recently been found by users for as low as $76 on Spirit Airlines. Other airlines that offer cheap prices include Allegiant Air from $79 and American Airlines from $90 one-way.

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

    The most popular flight routes from Washington, D.C. to Louisville are Washington, D.C. Dulles Intl - Louisville Intl, Washington, D.C. Reagan-National - Louisville Intl and Baltimore/Washington - Louisville Intl.

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

    No one likes to see their flight delayed. When booking a flight from Washington, D.C. to Louisville consider choosing Copa Airlines (92%), Republic Airways (88%) or United Airlines (86%) as they are the most reliable in getting you off to your destination on time.

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

    While on average a flight from Washington, D.C. to Louisville is generally $294, our data shows the cheapest flight currently is $174. When looking at the most popular route, (Washington, D.C. Dulles Intl - Louisville Intl), you can expect to pay $189 for that flight.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Washington, D.C. to Louisville 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 Washington, D.C. to Louisville?

    Currently, January is the cheapest month in which you can book a flight from Washington, D.C. to Louisville (average of $299). Flying from Washington, D.C. to Louisville in April is currently the most expensive (average of $369). 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 Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Jeffersonville
Corydon
Elizabethtown
Bardstown

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

Discover the top 4 airlines that operate flights from Washington, D.C. to Louisville. 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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$189Average$288FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$190Average$350FlexibilityNo cancel feeOn-time71%
DeltaCheapest$218Average$331FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$237Average$325FlexibilityNo cancel feeOn-time63%

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