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$73+ 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 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SDF
2月 25 — 3月 41
週二 2/25
週二 3/4
1 adult, Economy
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The best prices from Washington, D.C. to Louisville Intl are usually found in January or March, 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 2月 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$149
(Mytrip)

One-way from

$73
(Mytrip)

Popular in

December

Cheapest in

January

Average price

$299

Good round-trip deal

$234 or less

Good one-way deal

$118 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. 0% potential increase in price ($1 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in February 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 2月 20, 2025.

This Mytrip deal was found by Cheapflights users on 2/19. 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.
週二 4/86:50 amBWI - SDF
1 stop16h 08mSpirit Airlines
週五 4/116:00 amSDF - BWI
1 stop28h 27mSpirit Airlines
Deal found 2/19$151
This United Airlines deal was found by Cheapflights users on 2/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週四 3/208:40 amIAD - SDF
Nonstop1h 53mUnited Airlines
週四 3/276:00 amSDF - IAD
Nonstop1h 35mUnited Airlines
Deal found 2/20$195
This American Airlines deal was found by Cheapflights users on 2/19. 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.
週四 3/68:24 amDCA - SDF
Nonstop2h 01mAmerican Airlines
週日 3/95:37 amSDF - DCA
Nonstop1h 36mAmerican Airlines
Deal found 2/19$199
This Delta deal was found by Cheapflights users on 2/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週三 3/196:00 amIAD - SDF
1 stop4h 00mDelta
週三 3/266:00 amSDF - IAD
1 stop6h 53mDelta
Deal found 2/20$199
This Southwest deal was found by Cheapflights users on 2/19. 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.
週三 4/21:00 pmDCA - SDF
1 stop8h 30mSouthwest
週四 4/31:40 pmSDF - DCA
1 stop4h 30mSouthwest
Deal found 2/19$204
This Delta deal was found by Cheapflights users on 2/19. 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.
週二 9/96:25 pmDCA - SDF
1 stop4h 07mDelta
週六 9/132:59 pmSDF - DCA
1 stop4h 23mDelta
Deal found 2/19$209
This Mytrip deal was found by Cheapflights users on 2/20. 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.
週五 2/288:39 pmBWI - SDF
1 stop27h 07mMultiple Airlines
週一 3/36:12 pmSDF - BWI
1 stop28h 27mMultiple Airlines
Deal found 2/20$221
This Southwest deal was found by Cheapflights users on 2/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週一 3/109:20 pmBWI - SDF
Nonstop1h 55mSouthwest
週三 3/128:55 amSDF - BWI
Nonstop1h 30mSouthwest
Deal found 2/20$237
This American Airlines deal was found by Cheapflights users on 2/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週六 3/85:28 pmIAD - SDF
1 stop7h 08mAmerican Airlines
週六 3/156:04 pmSDF - IAD
1 stop5h 54mAmerican Airlines
Deal found 2/20$264
This United Airlines deal was found by Cheapflights users on 2/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週五 3/76:00 amDCA - SDF
1 stop7h 31mUnited Airlines
週二 3/1111:21 amSDF - DCA
1 stop5h 04mUnited Airlines
Deal found 2/20$280
This Delta deal was found by Cheapflights users on 2/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週五 3/76:00 amBWI - SDF
1 stop5h 51mDelta
週五 3/76:52 pmSDF - BWI
1 stop5h 43mDelta
Deal found 2/20$287
This Mytrip deal was found by Cheapflights users on 2/20. 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.
週四 4/247:05 pmIAD - SDF
1 stop13h 26mMultiple Airlines
週日 4/279:18 pmSDF - IAD
2 stops15h 32mMultiple Airlines
Deal found 2/20$303

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

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 2月 20, 2025.

Fly from

Washington, D.C.

Fly to

Louisville

Route

Depart

Return

Price

BaltimoreLouisville

BWI - SDF

BWISDF

Baltimore/Washington

週二 4/8

6:50 am-10:58 pm

1 stop16h 08m

Louisville Intl

週五 4/11

6:00 am-10:27 am

1 stop28h 27m

$151

Washington, D.C.Louisville

IAD - SDF

IADSDF

Washington, D.C. Dulles Intl

週四 3/20

8:40 am-10:33 am

Nonstop1h 53m

Louisville Intl

週四 3/27

6:00 am-7:35 am

Nonstop1h 35m

$195

Washington, D.C.Louisville

DCA - SDF

DCASDF

Washington, D.C. Reagan-National

週四 3/6

8:24 am-10:25 am

Nonstop2h 01m

Louisville Intl

週日 3/9

5:37 am-7:13 am

Nonstop1h 36m

$199

Washington, D.C.Louisville

IAD - SDF

IADSDF

Washington, D.C. Dulles Intl

週三 3/19

6:00 am-10:00 am

1 stop4h 00m

Louisville Intl

週三 3/26

6:00 am-12:53 pm

1 stop6h 53m

$199

Washington, D.C.Louisville

DCA - SDF

DCASDF

Washington, D.C. Reagan-National

週三 4/2

1:00 pm-9:30 pm

1 stop8h 30m

Louisville Intl

週四 4/3

1:40 pm-6:10 pm

1 stop4h 30m

$204

BaltimoreLouisville

BWI - SDF

BWISDF

Baltimore/Washington

週四 3/6

5:45 am-10:23 am

1 stop28h 38m

Louisville Intl

週五 3/7

7:16 pm-9:15 am

1 stop13h 59m

$229

BaltimoreLouisville

BWI - SDF

BWISDF

Baltimore/Washington

週一 3/10

9:20 pm-11:15 pm

Nonstop1h 55m

Louisville Intl

週三 3/12

8:55 am-10:25 am

Nonstop1h 30m

$237

Washington, D.C.Louisville

DCA - SDF

DCASDF

Washington, D.C. Reagan-National

週四 3/6

6:00 am-12:12 pm

1 stop6h 12m

Louisville Intl

週四 3/6

4:14 pm-9:00 pm

1 stop4h 46m

$257

Washington, D.C.Louisville

IAD - SDF

IADSDF

Washington, D.C. Dulles Intl

週六 3/8

5:28 pm-12:36 am

1 stop7h 08m

Louisville Intl

週六 3/15

6:04 pm-11:58 pm

1 stop5h 54m

$264

Washington, D.C.Louisville

DCA - SDF

DCASDF

Washington, D.C. Reagan-National

週五 3/7

6:00 am-1:31 pm

1 stop7h 31m

Louisville Intl

週二 3/11

11:21 am-4:25 pm

1 stop5h 04m

$280

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 29 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 February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star
PricelinePrice Accuracy1 starTrust 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 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 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.

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

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

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 February 14, 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 2月 20, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 15% on flights from Washington, D.C. to Louisville by exploring options for tickets in the evening.

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 February 16, 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 at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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

Explore weekly flight availability from Washington, D.C. to Louisville. 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 2月 20, 2025.

The most flights from WAS to SDF are scheduled on a Monday (10 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 on average).

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 2月 20, 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
8.1
Very good
4,411 reviews

Comfort

8.1

Crew

8.7

Overall

8.1

Boarding

8.2

Food

7.1

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Southwest
8.1
Very good
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Comfort

8.1

Crew

8.7

Overall

8.1

Boarding

8.2

Food

7.1

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Delta
8.0
Very good
8,219 reviews
Southwest
8.1
Very good
4,411 reviews

Comfort

8.1

Crew

8.7

Overall

8.1

Boarding

8.2

Food

7.1

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

United Airlines
7.4
Good
8,765 reviews
Southwest
8.1
Very good
4,411 reviews

Comfort

8.1

Crew

8.7

Overall

8.1

Boarding

8.2

Food

7.1

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Allegiant Air
7.3
Good
765 reviews
Southwest
8.1
Very good
4,411 reviews

Comfort

8.1

Crew

8.7

Overall

8.1

Boarding

8.2

Food

7.1

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,411 reviews

Comfort

8.1

Crew

8.7

Overall

8.1

Boarding

8.2

Food

7.1

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

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 7 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, Spirit Airlines ($149), United Airlines ($194), and American Airlines ($199) offers the cheapest pricing from Washington, D.C. to Louisville. You may be able to fly from Washington, D.C. to Louisville for 51% 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 $73 on Spirit Airlines. Other airlines that offer cheap prices include Allegiant Air from $84 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, Baltimore/Washington - Louisville Intl and Washington, D.C. Reagan-National - 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 Republic Airways (89%), Copa Airlines (88%) or Lufthansa (88%) 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 $252, our data shows the cheapest flight currently is $89. When looking at the most popular route, (Washington, D.C. Dulles Intl - Louisville Intl), you can expect to pay $179 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 2月 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$173Average$285FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$179Average$346FlexibilityNo cancel feeOn-time71%
DeltaCheapest$186Average$289FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$248Average$325FlexibilityNo cancel feeOn-time63%
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