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 $189 on this airline. Additional options worth looking into are Delta and American Airlines, starting at $199 and $301 round-trip. United Airlines is 39% 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 Allegiant Air and Delta, with prices starting from $95 and $100, respectively.

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

Travelers seeking maximum savings on their Louisville to Washington, D.C. Dulles Intl Airport flight should consider departing on Thursday mornings when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 $159. While the most popular route (Louisville Intl - Washington, D.C. Dulles Intl) can be booked for $179 on average our data indicates $1,497 when flying from Louisville to Washington, D.C. Dulles Intl Airport.

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: Copa Airlines (93%), Republic Airways (93%), Air Canada( 86%).

What is the cheapest day to fly round-trip from Louisville to Washington, D.C. Dulles Intl Airport?

Monday flights are generally found to be more expensive for flights from Louisville to Washington, D.C. Dulles Intl Airport. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Washington, D.C. Dulles Intl Airport.

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

August can be a great time to fly to Washington, D.C. Dulles Intl Airport from Louisville with a flight ticket averaging about $257. Cheapflights users have found deals in the month of August for as cheap as $180. The most expensive prices can be found in the month of January.

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.

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 7 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.

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.

$90+ Save on Flights from Louisville to Washington, D.C. Dulles Intl Airport

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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Louisville Intl to Washington, D.C. Dulles Intl are usually found in July or November, booked 19 days in advance, depart on a Friday or Thursday and return on a Saturday

Cheap flight deals from Louisville to Dulles Intl

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$189 (United Airlines)
One-way from	$90 (United Airlines)
Popular in	August
Cheapest in	July
Average price	$344
Good round-trip deal	$424 or less
Good one-way deal	$258 or less

Provider with most accurate pricing for Louisville Intl-Washington, D.C. Dulles Intl flight deals.

Search Deals

Provider most trusted by Cheapflights users for Louisville Intl-Washington, D.C. Dulles Intl flights.

Search Deals

From Louisville Intl to Washington, D.C. Dulles Intl

Search Deals

One-way flight from Louisville Intl to Washington, D.C. Dulles Intl

Search Deals

Highest demand for flights based on searches. 6% potential increase in price ($21 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($14 potential savings vs. average RT price).

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Average for round-trip flights in March 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 March 21, 2025.

Mon 4/1410:06 amSDF - IAD

Nonstop1h 37mUnited Airlines

Thu 4/178:25 amIAD - SDF

1 stop5h 38mUnited Airlines

Deal found 3/20

$189

Mon 4/144:59 pmSDF - IAD

1 stop4h 24mDelta

Thu 4/177:35 amIAD - SDF

1 stop4h 15mDelta

Deal found 3/20

$199

Tue 4/155:45 amSDF - IAD

3 stops29h 35mMultiple Airlines

Thu 4/179:10 pmIAD - SDF

1 stop11h 21mMultiple Airlines

Deal found 3/21

$303

Mon 4/145:45 amSDF - IAD

2 stops10h 37mAmerican Airlines

Wed 4/168:14 pmIAD - SDF

1 stop3h 59mAmerican Airlines

Deal found 3/20

$321

Sun 4/64:15 pmSDF - IAD

1 stop17h 02mAllegiant Air

Thu 4/108:59 pmIAD - SDF

1 stop11h 32mAllegiant Air

Deal found 3/19

$346

Best flights from Louisville to Dulles Intl
Discover carefully curated flight deals from Louisville to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 21, 2025.

Mon 4/1410:06 amSDF - IAD

Nonstop1h 37mUnited Airlines

Wed 4/168:25 amIAD - SDF

1 stop5h 38mUnited Airlines

Deal found 3/20

$189

Mon 4/144:59 pmSDF - IAD

1 stop4h 24mDelta

Thu 4/177:35 amIAD - SDF

1 stop4h 15mDelta

Deal found 3/20

$199

Mon 4/148:14 pmSDF - IAD

1 stop3h 42mAmerican Airlines

Wed 4/169:10 amIAD - SDF

2 stops11h 17mAmerican Airlines

Deal found 3/21

$301

Tue 4/155:45 amSDF - IAD

3 stops29h 35mMultiple Airlines

Thu 4/179:10 pmIAD - SDF

1 stop11h 21mMultiple Airlines

Deal found 3/21

$303

Sun 4/64:15 pmSDF - IAD

1 stop17h 02mAllegiant Air

Thu 4/108:59 pmIAD - SDF

1 stop11h 32mAllegiant Air

Deal found 3/19

$346

Last-minute flights from Louisville to Dulles Intl
Discover last-minute flight deals from Louisville to Dulles Intl. Data last updated March 21, 2025 and is based on user searches.

Thu 3/276:00 amSDF - IAD

1 stop6h 53mDelta

Sun 3/306:00 amIAD - SDF

1 stop4h 00mDelta

Deal found 3/20

$269

Thu 3/276:00 amSDF - IAD

Nonstop1h 35mUnited Airlines

Tue 4/13:47 pmIAD - SDF

1 stop6h 21mUnited Airlines

Deal found 3/20

$319

Thu 3/278:34 amSDF - IAD

1 stop4h 48mAmerican Airlines

Tue 4/16:27 amIAD - SDF

2 stops13h 37mAmerican Airlines

Deal found 3/20

$452

Sun 3/304:28 pmSDF - IAD

1 stop18h 39mMultiple Airlines

Wed 4/28:25 amIAD - SDF

3 stops27h 28mMultiple Airlines

Deal found 3/20

$466

Sun 4/64:15 pmSDF - IAD

1 stop17h 02mMultiple Airlines

Thu 4/108:25 amIAD - SDF

3 stops34h 06mMultiple Airlines

Deal found 3/19

$284

Sun 4/64:15 pmSDF - IAD

1 stop17h 02mAllegiant Air

Thu 4/108:59 pmIAD - SDF

1 stop11h 32mAllegiant Air

Deal found 3/19

$346

Mon 4/1410:06 amSDF - IAD

Nonstop1h 37mUnited Airlines

Thu 4/178:25 amIAD - SDF

1 stop5h 38mUnited Airlines

Deal found 3/20

$189

Mon 4/144:59 pmSDF - IAD

1 stop4h 24mDelta

Thu 4/177:35 amIAD - SDF

1 stop4h 15mDelta

Deal found 3/20

$199

Mon 4/148:14 pmSDF - IAD

1 stop3h 42mAmerican Airlines

Wed 4/169:10 amIAD - SDF

2 stops11h 17mAmerican Airlines

Deal found 3/21

$301

One-way flights from Louisville to Dulles Intl
Search for one-way flight options from Louisville to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated March 21, 2025.

Tue 4/2210:06 amSDF - IAD

Nonstop1h 37mUnited Airlines

Deal found 3/20

$90

Sun 4/64:15 pmSDF - IAD

1 stop17h 02mAllegiant Air

Deal found 3/20

$95

Mon 4/287:00 pmSDF - IAD

1 stop5h 28mDelta

Deal found 3/20

$100

Sat 7/126:12 amSDF - IAD

1 stop4h 36mAmerican Airlines

Deal found 3/20

$130

Thu 5/11:32 pmSDF - IAD

2 stops31h 25mMultiple Airlines

Deal found 3/20

$137

Cheapflights Fare Finder

Use the filters below to find and compare flights from Louisville to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LouisvilleWashington, D.C.

SDF - IAD

SDFIAD

Louisville Intl

Mon 4/14

10:06 am-11:43 am

Nonstop1h 37m

Washington, D.C. Dulles Intl

Wed 4/16

8:25 am-2:03 pm

1 stop5h 38m

$189

LouisvilleWashington, D.C.

SDF - IAD

SDFIAD

Louisville Intl

Mon 4/14

4:59 pm-9:23 pm

1 stop4h 24m

Washington, D.C. Dulles Intl

Wed 4/16

7:35 am-11:50 am

1 stop4h 15m

$199

LouisvilleWashington, D.C.

SDF - IAD

SDFIAD

Louisville Intl

Mon 4/14

8:14 pm-11:56 pm

1 stop3h 42m

Washington, D.C. Dulles Intl

Wed 4/16

9:10 am-8:27 pm

2 stops11h 17m

$301

LouisvilleWashington, D.C.

SDF - IAD

SDFIAD

Louisville Intl

Tue 4/15

5:45 am-11:20 am

3 stops29h 35m

Washington, D.C. Dulles Intl

Thu 4/17

9:10 pm-8:31 am

1 stop11h 21m

$303

LouisvilleWashington, D.C.

SDF - IAD

SDFIAD

Louisville Intl

Sun 4/6

4:15 pm-9:17 am

1 stop17h 02m

Washington, D.C. Dulles Intl

Thu 4/10

8:59 pm-8:31 am

1 stop11h 32m

$346

LouisvilleWashington, D.C.

SDF - IAD

SDFIAD

Louisville Intl

Tue 4/22

10:06 am-11:43 am

Nonstop1h 37m

$90

LouisvilleWashington, D.C.

SDF - IAD

SDFIAD

Louisville Intl

Sun 4/6

4:15 pm-9:17 am

1 stop17h 02m

$95

LouisvilleWashington, D.C.

SDF - IAD

SDFIAD

Louisville Intl

Mon 4/28

7:00 pm-12:28 am

1 stop5h 28m

$100

LouisvilleWashington, D.C.

SDF - IAD

SDFIAD

Louisville Intl

Sat 7/12

6:12 am-10:48 am

1 stop4h 36m

$130

LouisvilleWashington, D.C.

SDF - IAD

SDFIAD

Louisville Intl

Thu 5/1

1:32 pm-8:57 pm

2 stops31h 25m

$137

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/20

Compare providers for flights from Louisville to Dulles Intl

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 March.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust 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.

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

Cheapflights partnered with top experts to bring you the best recommendations for your Louisville to Washington, D.C. Dulles Intl Airport trip

Airlines

Lufthansa

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

Lufthansa offers a Free Neighbor Seat option 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.

United Economy Plus offers extra legroom seats towards the front of the economy cabin.

Read more about United Airlinesby Harriet Baskas

Our travel experts

Blane Bachelor

Expert on Lufthansa

Harriet Baskas

Expert on United Airlines

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.

Cheapflights Insights

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

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

Booking 19 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 $387). 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?

Unlike at noon, when flights are generally more expensive, you can save up to 80% 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

The most flights from SDF to IAD are scheduled on a Monday (8 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (6 on average).

Rainfall in Dulles Intl 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

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

To help decide which airline to fly from Louisville to Washington, D.C., see what other customers have to say about Delta, United Airlines and Allegiant Air. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,895 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

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

Delta

8.0

Very good

7,895 reviews

Delta

8.0

Very good

7,895 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

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

United Airlines

7.4

Good

8,605 reviews

Delta

8.0

Very good

7,895 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

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

Allegiant Air

7.3

Good

732 reviews

Delta

8.0

Very good

7,895 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

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

7,895 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

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

Related info for your journey

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 7 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 $189 on this airline. Additional options worth looking into are Delta and American Airlines, starting at $199 and $301 round-trip. United Airlines is 39% 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 Allegiant Air and Delta, with prices starting from $95 and $100, 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: Copa Airlines (93%), Republic Airways (93%), Air Canada( 86%).
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 $159. While the most popular route (Louisville Intl - Washington, D.C. Dulles Intl) can be booked for $179 on average our data indicates $1,497 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 $387). 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

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Top 2 airlines flying from Louisville to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$177	Average$218	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$186	Average$287	FlexibilityNo cancel fee	On-time69%

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$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 4/22. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Louisville to Dulles Intl with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Louisville Intl to Washington, D.C. Dulles Intl are usually found in July or November, booked 19 days in advance, depart on a Friday or Thursday and return on a Saturday

Cheap flight deals from Louisville to Dulles Intl

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Louisville to Dulles Intl

Cheapest flights from Louisville to Dulles IntlExplore 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 March 21, 2025.

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 March 21, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Louisville to Washington, D.C. Dulles Intl Airport that are best for you.

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 March.

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

Cheapflights partnered with top experts to bring you the best recommendations for your Louisville to Washington, D.C. Dulles Intl Airport trip

Airlines

Lufthansa

United Airlines

Our travel experts

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.

Cheapflights Insights

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

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 March 14, 2025.

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

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 March 21, 2025.

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

Rainfall in Dulles Intl by month

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

Temperature in Dulles Intl by month

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

Reviews of airlines servicing Dulles Intl

To help decide which airline to fly from Louisville to Washington, D.C., see what other customers have to say about Delta, United Airlines and Allegiant Air. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

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

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

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

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

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

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

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

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

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Alternative routes for Louisville to Dulles Intl

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Top 2 airlines flying from Louisville to Dulles Intl

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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 March 21, 2025.