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Dulles Intl

$90+ Cheap flights from Louisville (SDF) to Dulles Intl (IAD)

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 2/22. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — IAD
ene. 26 — feb. 21
dom. 1/26
dom. 2/2
1 adult, Economy
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The best prices from Louisville Intl to Washington, D.C. Dulles Intl are usually found in February or March, booked 63 days in advance, depart on a Wednesday or Tuesday and return on a Monday

Cheap flight deals from Louisville to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Louisville (SDF) to Dulles Intl (IAD). 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 enero 21, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$194
(United Airlines)

One-way from

$90
(United Airlines)

Popular in

August

Cheapest in

February

Average price

$275

Good round-trip deal

$362 or less

Good one-way deal

$253 or less
Provider with most accurate pricing for Louisville Intl-Washington, D.C. Dulles Intl flight deals.
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Provider most trusted by Cheapflights users for Louisville Intl-Washington, D.C. Dulles Intl flights.
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From Louisville Intl to Washington, D.C. Dulles Intl
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One-way flight from Louisville Intl to Washington, D.C. Dulles Intl
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Highest demand for flights based on searches. 13% potential increase in price ($46 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in January 2025
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Price to beat on a round-trip flight from Louisville Intl to Washington, D.C. Dulles Intl.
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Price to beat on a one-way flight from Louisville Intl to Washington, D.C. Dulles Intl.
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Find flight deals from Louisville to Dulles Intl

Cheapest flights from Louisville to Dulles Intl
Explore the most affordable flight options available from Louisville to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on enero 21, 2025.

This United Airlines deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 3/1211:21 amSDF - IAD
1 stop5h 04mUnited Airlines
sáb. 3/158:19 amIAD - SDF
Nonstop1h 53mUnited Airlines
Deal found 1/20$194
This Delta deal was found by Cheapflights users on 1/21. 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.
mié. 3/127:35 amSDF - IAD
1 stop3h 58mDelta
sáb. 3/156:00 amIAD - SDF
1 stop4h 00mDelta
Deal found 1/21$204
This Mytrip deal was found by Cheapflights users on 1/21. 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.
jue. 2/207:28 pmSDF - IAD
3 stops20h 47mMultiple Airlines
dom. 2/239:03 pmIAD - SDF
1 stop11h 30mMultiple Airlines
Deal found 1/21$276
This American Airlines deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 2/118:54 amSDF - IAD
1 stop4h 28mAmerican Airlines
mié. 2/126:22 amIAD - SDF
2 stops10h 57mAmerican Airlines
Deal found 1/20$321

Find flights from Louisville to Dulles Intl within your budget

Customize your flight search to find flights from Louisville to Dulles Intl 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 enero 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

LouisvilleWashington, D.C.

SDF - IAD

SDFIAD

Louisville Intl

mié. 3/12

6:00 am-7:35 am

Nonstop1h 35m

Washington, D.C. Dulles Intl

sáb. 3/15

5:28 pm-11:30 pm

1 stop6h 02m

$194

LouisvilleWashington, D.C.

SDF - IAD

SDFIAD

Louisville Intl

mié. 3/12

7:35 am-11:33 am

1 stop3h 58m

Washington, D.C. Dulles Intl

sáb. 3/15

6:00 am-10:00 am

1 stop4h 00m

$204

LouisvilleWashington, D.C.

SDF - IAD

SDFIAD

Louisville Intl

jue. 2/20

7:28 pm-4:15 pm

3 stops20h 47m

Washington, D.C. Dulles Intl

dom. 2/23

9:03 pm-8:33 am

1 stop11h 30m

$276

LouisvilleWashington, D.C.

SDF - IAD

SDFIAD

Louisville Intl

mar. 2/25

7:53 pm-11:53 pm

1 stop4h 00m

Washington, D.C. Dulles Intl

mié. 2/26

6:30 am-5:19 pm

2 stops10h 49m

$320

LouisvilleWashington, D.C.

SDF - IAD

SDFIAD

Louisville Intl

sáb. 2/22

10:05 am-11:42 am

Nonstop1h 37m

$90

LouisvilleWashington, D.C.

SDF - IAD

SDFIAD

Louisville Intl

jue. 5/15

11:34 am-6:20 pm

1 stop6h 46m

$111

LouisvilleWashington, D.C.

SDF - IAD

SDFIAD

Louisville Intl

jue. 2/27

6:20 pm-11:13 pm

1 stop4h 53m

$129

LouisvilleWashington, D.C.

SDF - IAD

SDFIAD

Louisville Intl

sáb. 2/22

7:53 pm-11:53 pm

1 stop4h 00m

$130

LouisvilleWashington, D.C.

SDF - IAD

SDFIAD

Louisville Intl

jue. 2/27

6:00 am-9:05 pm

2 stops15h 05m

$140

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Compare providers for flights from Louisville to Dulles Intl

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 Dulles Intl in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 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. Dulles Intl Airport 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. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Louisville-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Louisville-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Louisville-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Louisville to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Louisville with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Louisville to Dulles Intl

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

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

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

Booking 32 days in advance of your planned departure date is, on average, the best time to get cheap flights from Louisville to Washington, D.C. Dulles Intl Airport. 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. Dulles Intl Airport?

Currently, August is the cheapest month in which you can book a flight from Louisville to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Louisville to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $389). 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 IAD?

Find hourly flight availability from Louisville to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated enero 21, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 29% on flights from Louisville to Washington, D.C. Dulles Intl Airport by exploring options for tickets in the afternoon.

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

Explore weekly flight availability from Louisville to Dulles Intl. 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 enero 21, 2025.

The most flights from SDF to IAD are scheduled on a Monday (5 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (5 on average).

Rainfall in Dulles Intl by month

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

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport when rainfall is around 2.6 in.

Temperature in Dulles Intl by month

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

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, 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 Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated enero 21, 2025.
To help decide which airline to fly from Louisville to Washington, D.C., see what other customers have to say about American Airlines, United Airlines and Delta. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,521 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.6

Overall

8.0

Comfort

8.0

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
8,521 reviews
Delta
8.0
Very good
8,521 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.6

Overall

8.0

Comfort

8.0

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
8,984 reviews
Delta
8.0
Very good
8,521 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.6

Overall

8.0

Comfort

8.0

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
8,521 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.6

Overall

8.0

Comfort

8.0

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
8,521 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.6

Overall

8.0

Comfort

8.0

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 Louisville to Dulles Intl. 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. Dulles Intl?

    Louisville Intl (SDF) is the airport you will fly out of if you book a flight from Louisville to Washington, D.C. Dulles Intl. You should not have trouble finding flights to Washington, D.C. Dulles Intl from Louisville Intl; the airport handles an average of 5 outbound flights to Washington, D.C. Dulles Intl per day. You should also have plenty of airline options to choose from since 2 airlines have flights from the Louisville airport to Washington, D.C. Dulles Intl. It is only a 5.3 mi journey to Louisville Intl (SDF) from Louisville’s city center.

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

    Our cheapest airline available from Louisville to Washington, D.C. Dulles Intl Airport is United Airlines. Our recent data shows that you can find tickets from as low as $194 on this airline. Additional options worth looking into are Delta and American Airlines, starting at $209 and $320 round-trip. United Airlines is 33% cheaper than the average price of flights available within the next 90 days to this destination.

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

    $90 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Delta and American Airlines, with prices starting from $100 and $130, respectively.

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

    Before booking your flight to Washington, D.C. Dulles Intl Airport from Louisville, check out the most reliable airlines to get you to your destination on time: Republic Airways (93%), Air Canada (92%), Copa Airlines( 84%).

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

    Looking at all options, your cheapest flight can be booked for $148. While the most popular route (Louisville Intl - Washington, D.C. Dulles Intl) can be booked for $179 on average our data indicates $957 when flying from Louisville to Washington, D.C. Dulles Intl Airport.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Louisville to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Louisville to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $389). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Louisville?

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

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Alternative routes for Louisville to Dulles Intl

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

Discover the top 2 airlines that operate flights from Louisville to Dulles Intl. 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 enero 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$177Average$218FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$188Average$284FlexibilityNo cancel feeOn-time69%
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