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$90+ Cheap flights from Dulles Intl (IAD) 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 2/15. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SDF
Jan 21 — Jan 281
Tue 1/21
Tue 1/28
1 adult, Economy
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The best prices from Washington, D.C. Dulles Intl to Louisville Intl are usually found in August or January, booked 77 days in advance, depart on a Saturday or Wednesday and return on a Wednesday

Cheap flight deals from Dulles Intl to Louisville

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) 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 January 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$199
(United Airlines)

One-way from

$90
(United Airlines)

Popular in

September

Cheapest in

August

Average price

$269
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Louisville Intl flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Louisville Intl flights.
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From Washington, D.C. Dulles Intl to Louisville Intl
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One-way flight from Washington, D.C. Dulles Intl to Louisville Intl
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High demand for flights, 9% potential price rise
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Best time to find cheap flights, 4% potential price drop
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Average for round-trip flights in January 2025
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Find flight deals from Dulles Intl to Louisville

Cheapest flights from Dulles Intl to Louisville
Explore the most affordable flight options available from Dulles Intl to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 16, 2025.

This United Airlines deal was found by Cheapflights users on 1/15. 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.
Tue 2/118:22 amIAD - SDF
1 stop5h 38mUnited Airlines
Wed 2/123:20 pmSDF - IAD
1 stop5h 00mUnited Airlines
Deal found 1/15$199
This Delta deal was found by Cheapflights users on 1/16. 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.
Sat 2/221:40 pmIAD - SDF
1 stop4h 09mDelta
Mon 2/247:05 amSDF - IAD
1 stop4h 46mDelta
Deal found 1/16$204
This Mytrip deal was found by Cheapflights users on 1/15. 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 2/209:04 pmIAD - SDF
1 stop11h 29mMultiple Airlines
Sun 2/239:29 pmSDF - IAD
2 stops15h 21mMultiple Airlines
Deal found 1/15$274
This American Airlines deal was found by Cheapflights users on 1/15. 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.
Wed 2/197:30 pmIAD - SDF
1 stop5h 08mAmerican Airlines
Sun 2/238:29 amSDF - IAD
1 stop4h 49mAmerican Airlines
Deal found 1/15$284

Find flights from Dulles Intl to Louisville within your budget

Customize your flight search to find flights from Dulles Intl 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 January 16, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Washington, D.C.Louisville

IAD - SDF

IADSDF

Washington, D.C. Dulles Intl

Tue 2/11

8:22 am-2:00 pm

1 stop5h 38m

Louisville Intl

Wed 2/12

3:20 pm-8:20 pm

1 stop5h 00m

$199

Washington, D.C.Louisville

IAD - SDF

IADSDF

Washington, D.C. Dulles Intl

Sat 2/22

1:40 pm-5:49 pm

1 stop4h 09m

Louisville Intl

Mon 2/24

7:05 am-11:51 am

1 stop4h 46m

$204

Washington, D.C.Louisville

IAD - SDF

IADSDF

Washington, D.C. Dulles Intl

Thu 2/20

9:04 pm-8:33 am

1 stop11h 29m

Louisville Intl

Sun 2/23

9:29 pm-12:50 pm

2 stops15h 21m

$274

Washington, D.C.Louisville

IAD - SDF

IADSDF

Washington, D.C. Dulles Intl

Wed 2/19

7:30 pm-12:38 am

1 stop5h 08m

Louisville Intl

Sun 2/23

8:29 am-1:18 pm

1 stop4h 49m

$284

Washington, D.C.Louisville

IAD - SDF

IADSDF

Washington, D.C. Dulles Intl

Sat 2/15

10:05 pm-11:58 pm

Nonstop1h 53m

$90

Washington, D.C.Louisville

IAD - SDF

IADSDF

Washington, D.C. Dulles Intl

Sat 2/15

12:30 pm-5:49 pm

1 stop5h 19m

$100

Washington, D.C.Louisville

IAD - SDF

IADSDF

Washington, D.C. Dulles Intl

Sun 3/2

8:59 pm-8:33 am

1 stop11h 34m

$107

Washington, D.C.Louisville

IAD - SDF

IADSDF

Washington, D.C. Dulles Intl

Sun 2/23

9:45 pm-11:46 pm

2 stops26h 01m

$118

Washington, D.C.Louisville

IAD - SDF

IADSDF

Washington, D.C. Dulles Intl

Wed 3/12

5:28 pm-12:34 am

1 stop7h 06m

$130

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/16

Compare providers for flights from Dulles Intl 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 Dulles Intl to Louisville in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice 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. Dulles Intl Airport-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. Dulles Intl Airport-Louisville flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Louisville flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-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. Dulles Intl Airport-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 Dulles Intl to Louisville

Have a flexible travel schedule? Discover the best time to fly to Louisville from Dulles Intl 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 Dulles Intl to Louisville

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

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

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to Louisville. Price data was last updated on January 10, 2025.

The price you pay for your flight from Washington, D.C. Dulles Intl Airport to Louisville may vary depending on when you book. For the best chance of a lower fare, look to book 77 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Louisville (average of $299). Flying from Washington, D.C. Dulles Intl Airport 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 IAD to SDF?

Find hourly flight availability from Dulles Intl 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 January 16, 2025.

One of the essential ways to save on airfare from Washington, D.C. Dulles Intl Airport to Louisville is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the morning could potentially save you up to 25% on airfare.

Weekly flight availability from Washington, D.C. Dulles Intl Airport to Louisville

Explore weekly flight availability from Dulles Intl 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 January 16, 2025.

The most flights from IAD to SDF are scheduled on a Monday (6 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (6 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 January 16, 2025.
See what other customers who have flown with American Airlines, United Airlines and Delta 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.
Delta
8.0
Very good
8,511 reviews

Comfort

8.0

Crew

8.6

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very good
8,511 reviews
Delta
8.0
Very good
8,511 reviews

Comfort

8.0

Crew

8.6

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines
7.4
Good
8,965 reviews
Delta
8.0
Very good
8,511 reviews

Comfort

8.0

Crew

8.6

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Allegiant Air
7.4
Good
801 reviews
Delta
8.0
Very good
8,511 reviews

Comfort

8.0

Crew

8.6

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
8,511 reviews

Comfort

8.0

Crew

8.6

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl 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. Dulles Intl?

    Louisville Intl (SDF) is the airport you will fly into if you book a flight from Washington, D.C. Dulles Intl to Louisville. You should not have trouble finding flights to Louisville Intl from Washington, D.C. Dulles Intl; the airport handles an average of 6 inbound flights from Washington, D.C. Dulles Intl per day. You should also have plenty of airline options to choose from since 2 airlines have flights to the Louisville airport from Washington, D.C. Dulles Intl. 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. Dulles Intl Airport to Louisville round-trip?

    According to our current data, United Airlines ($199), Delta ($204), and American Airlines ($346) offers the cheapest pricing from Washington, D.C. Dulles Intl Airport to Louisville. You may be able to fly from Washington, D.C. Dulles Intl Airport to Louisville for 41% less than the average price by searching for these airlines.

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

    To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at $90. Delta flights start at $100 while deals on Allegiant Air start at $110 one-way.

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

    The top 3 most reliable airlines when flying from Washington, D.C. Dulles Intl Airport to Louisville are Lufthansa (87%), Copa Airlines (85%) and Air Canada (81%).

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

    Looking at all options, your cheapest flight can be booked for $144. While the most popular route (Washington, D.C. Dulles Intl - Louisville Intl) can be booked for $179 on average our data indicates $285 when flying from Washington, D.C. Dulles Intl Airport to Louisville.

  • Can I find deals for flights from Dulles Intl to Louisville that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Louisville flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Louisville?

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

  • Can I find deals for business class flights from Dulles Intl to Louisville?

    Yes. Cheapflights offers flight deals from Dulles Intl 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. Dulles Intl Airport to Louisville?

    Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Louisville (average of $299). Flying from Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport?

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

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Alternative routes for Dulles Intl to Louisville

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Dulles Intl to Louisville

Discover the top 2 airlines that operate flights from Dulles Intl 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 January 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$188Average$330FlexibilityNo cancel feeOn-time69%
DeltaCheapest$199Average$269FlexibilityNo cancel feeOn-timeN/A
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