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

According to our current data, Delta ($213), United Airlines ($239), and American Airlines ($258) 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 35% 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 Allegiant Air, which is currently one of the cheapest options available, starting at $98. Delta flights start at $104 while deals on United Airlines start at $145 one-way.

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

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

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 $104. While the most popular route (Washington, D.C. Dulles Intl - Louisville Intl) can be booked for $189 on average our data indicates $246 when flying from Washington, D.C. Dulles Intl Airport to Louisville.

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 (93%), Republic Airways (93%) and United Airlines (92%).

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

Users have found that flying from Washington, D.C. Dulles Intl Airport to Louisville on a Saturday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

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

January is one of the best times of the year to fly to Louisville from Washington, D.C. Dulles Intl Airport. Prices for January average $301 per person but you can even find prices for as low as $98. The most expensive prices can be found in the month of December. Opting for a January flight can save you 20% on your journey compared to booking in December

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.

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 5 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.

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.

$95+ Flights from Washington, D.C. Dulles Intl Airport to Louisville

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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

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The best prices from Washington, D.C. Dulles Intl to Louisville Intl are usually found in January or February, booked 77 days in advance, depart on a Saturday or Wednesday and return on a Wednesday

Cheap flight deals from Dulles Intl to Louisville

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$213 (Delta)
One-way from	$98 (Mytrip)
Popular in	September
Cheapest in	January
Average price	$355

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, 12% 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 December 2024

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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 December 21, 2024.

Tue 12/315:27 pmIAD - SDF

1 stop5h 00mDelta

Tue 1/72:43 pmSDF - IAD

1 stop6h 22mDelta

Deal found 12/20

$233

Mon 12/308:10 pmIAD - SDF

1 stop4h 24mAmerican Airlines

Mon 1/68:13 pmSDF - IAD

1 stop3h 49mAmerican Airlines

Deal found 12/20

$258

Sun 12/2912:50 pmIAD - SDF

Nonstop1h 53mUnited Airlines

Mon 1/610:02 amSDF - IAD

Nonstop1h 39mUnited Airlines

Deal found 12/20

$279

Fri 12/2012:55 pmIAD - SDF

3 stops27h 58mMultiple Airlines

Sat 12/219:31 pmSDF - IAD

1 stop13h 20mMultiple Airlines

Deal found 12/20

$824

Best flights from Dulles Intl to Louisville
Discover carefully curated flight deals from Dulles Intl to Louisville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 21, 2024.

Thu 1/96:00 amIAD - SDF

1 stop5h 34mDelta

Sun 1/127:35 amSDF - IAD

1 stop4h 16mDelta

Deal found 12/21

$213

Sun 2/212:45 pmIAD - SDF

Nonstop1h 53mUnited Airlines

Tue 2/42:30 pmSDF - IAD

Nonstop1h 37mUnited Airlines

Deal found 12/21

$239

Sat 5/173:54 pmIAD - SDF

1 stop3h 25mAmerican Airlines

Sat 5/248:19 pmSDF - IAD

1 stop3h 34mAmerican Airlines

Deal found 12/21

$258

Sat 1/2511:19 amIAD - SDF

2 stops10h 35mFrontier

Sun 1/266:40 pmSDF - IAD

1 stop5h 42mFrontier

Deal found 12/21

$358

Sun 1/197:05 pmIAD - SDF

1 stop15h 47mMultiple Airlines

Sun 1/2610:51 amSDF - IAD

3 stops24h 35mMultiple Airlines

Deal found 12/20

$382

Last-minute flights from Dulles Intl to Louisville
Discover last-minute flight deals from Dulles Intl to Louisville. Data last updated December 21, 2024 and is based on user searches.

Sun 12/2912:50 pmIAD - SDF

Nonstop1h 53mUnited Airlines

Tue 1/72:30 pmSDF - IAD

Nonstop1h 37mUnited Airlines

Deal found 12/20

$279

Mon 12/308:10 pmIAD - SDF

1 stop4h 24mAmerican Airlines

Mon 1/68:13 pmSDF - IAD

1 stop3h 49mAmerican Airlines

Deal found 12/20

$258

Tue 12/315:27 pmIAD - SDF

1 stop5h 00mDelta

Tue 1/72:43 pmSDF - IAD

1 stop6h 22mDelta

Deal found 12/20

$233

Wed 1/1512:45 pmIAD - SDF

Nonstop1h 53mUnited Airlines

Wed 1/222:30 pmSDF - IAD

Nonstop1h 37mUnited Airlines

Deal found 12/20

$249

Sun 1/197:05 pmIAD - SDF

1 stop15h 47mMultiple Airlines

Sun 1/2610:51 amSDF - IAD

3 stops24h 35mMultiple Airlines

Deal found 12/20

$382

One-way flights from Dulles Intl to Louisville
Search for one-way flight options from Dulles Intl to Louisville. Find affordable one-way fares based on user searches. Data last updated December 21, 2024.

Sun 2/239:03 pmIAD - SDF

1 stop11h 30mAllegiant Air

Deal found 12/20

$98

Wed 2/266:00 amIAD - SDF

1 stop5h 31mDelta

Deal found 12/20

$104

Sun 2/239:36 pmIAD - SDF

2 stops17h 09mMultiple Airlines

Deal found 12/20

$142

Sun 1/195:55 pmIAD - SDF

Nonstop1h 53mUnited Airlines

Deal found 12/20

$145

Fri 1/171:53 pmIAD - SDF

1 stop4h 09mAmerican Airlines

Deal found 12/19

$175

Find flights from Dulles Intl to Louisville within your budget

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Louisville

IAD - SDF

IADSDF

Washington, D.C. Dulles Intl

Tue 12/31

5:27 pm-10:27 pm

1 stop5h 00m

Louisville Intl

Tue 1/7

2:43 pm-9:05 pm

1 stop6h 22m

$233

Washington, D.C.Louisville

IAD - SDF

IADSDF

Washington, D.C. Dulles Intl

Sun 2/2

12:45 pm-2:38 pm

Nonstop1h 53m

Louisville Intl

Tue 2/4

2:30 pm-4:07 pm

Nonstop1h 37m

$239

Washington, D.C.Louisville

IAD - SDF

IADSDF

Washington, D.C. Dulles Intl

Sat 5/17

3:54 pm-7:19 pm

1 stop3h 25m

Louisville Intl

Sat 5/24

8:19 pm-11:53 pm

1 stop3h 34m

$258

Washington, D.C.Louisville

IAD - SDF

IADSDF

Washington, D.C. Dulles Intl

Sun 1/19

7:05 pm-10:52 am

1 stop15h 47m

Louisville Intl

Sun 1/26

10:51 am-11:26 am

3 stops24h 35m

$382

Washington, D.C.Louisville

IAD - SDF

IADSDF

Washington, D.C. Dulles Intl

Wed 2/5

12:45 pm-2:38 pm

Nonstop1h 53m

$95

Washington, D.C.Louisville

IAD - SDF

IADSDF

Washington, D.C. Dulles Intl

Sun 2/23

9:03 pm-8:33 am

1 stop11h 30m

$98

Washington, D.C.Louisville

IAD - SDF

IADSDF

Washington, D.C. Dulles Intl

Wed 2/5

6:00 am-11:31 am

1 stop5h 31m

$104

Washington, D.C.Louisville

IAD - SDF

IADSDF

Washington, D.C. Dulles Intl

Sun 2/23

9:36 pm-2:45 pm

2 stops17h 09m

$142

Washington, D.C.Louisville

IAD - SDF

IADSDF

Washington, D.C. Dulles Intl

Fri 1/17

1:53 pm-6:02 pm

1 stop4h 09m

$175

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/21

Compare providers for flights from Dulles Intl to Louisville

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 December.

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
AranGrant	Price Accuracy3 stars	Trust Score*2 stars
Priceline	Price Accuracy1 star	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 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?

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?

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

The most flights from IAD to SDF are scheduled on a Monday (6 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (5 on average).

Rainfall in Louisville 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

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

See what other customers who have flown with 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.

Delta

8.0

Very good

8,597 reviews

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

8,597 reviews

Delta

8.0

Very good

8,597 reviews

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

9,039 reviews

Delta

8.0

Very good

8,597 reviews

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

825 reviews

Delta

8.0

Very good

8,597 reviews

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

8,597 reviews

Reviews

1 / 10

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

Frontier

6.1

Okay

3,474 reviews

Delta

8.0

Very good

8,597 reviews

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

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 5 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, Delta ($213), United Airlines ($239), and American Airlines ($258) 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 35% 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 Allegiant Air, which is currently one of the cheapest options available, starting at $98. Delta flights start at $104 while deals on United Airlines start at $145 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 (93%), Republic Airways (93%) and United Airlines (92%).
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 $104. While the most popular route (Washington, D.C. Dulles Intl - Louisville Intl) can be booked for $189 on average our data indicates $246 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

Browse thousands of different options on Cheapflights for your next trip

Top 2 airlines flying from Dulles Intl to Louisville

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$181	Average$328	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$199	Average$233	FlexibilityNo cancel fee	On-timeN/A

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$95+ 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 2/5. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Dulles Intl to Louisville with Cheapflights

1. Tell us where you want to go

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3. Compare prices and book

The best prices from Washington, D.C. Dulles Intl to Louisville Intl are usually found in January or February, booked 77 days in advance, depart on a Saturday or Wednesday and return on a Wednesday

Cheap flight deals from Dulles Intl to Louisville

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Dulles Intl to Louisville

Cheapest flights from Dulles Intl to LouisvilleExplore 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 December 21, 2024.

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 December 21, 2024.

Find flights from Dulles Intl to Louisville within your budget

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 December.

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.

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 December 13, 2024.

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

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 December 21, 2024.

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

Rainfall in Louisville by month

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

Temperature in Louisville by month

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

Reviews of airlines servicing Louisville

See what other customers who have flown with 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.

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?

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

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

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

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

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

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

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

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Dulles Intl to Louisville

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Dulles Intl to Louisville

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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 December 21, 2024.