What airlines fly to Washington, D.C. Dulles Intl Airport?

United Airlines, Delta and American Airlines are the top three most popular airlines that fly to Washington, D.C. Dulles Intl Airport from Louisville according to our data. United Airlines is the first choice among our users, with 93% of people opting to fly with this airline when traveling to Washington, D.C. Dulles Intl Airport. Keep in mind that there are 3 different airlines that fly to Washington, D.C. Dulles Intl Airport on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Louisville Intl to Washington, D.C. Dulles Intl?

Delta, Allegiant Air, and American Airlines are the most popular carriers operating from Louisville Intl to Washington, D.C. Dulles Intl

When did momondo last update prices for flights from Louisville Intl Airport to Washington, D.C. Dulles Intl Airport?

Prices for flights from Louisville Intl Airport to Washington, D.C. Dulles Intl Airport refresh daily.

How many operators does momondo search for flights from Louisville Intl Airport to Washington, D.C. Dulles Intl Airport?

As of September 2025, there are 2 operators available to choose from for flights from Louisville Intl Airport to Washington, D.C. Dulles Intl Airport.

How old do you have to be to fly from Louisville Intl Airport to Washington, D.C. Dulles Intl Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to Washington, D.C. Dulles Intl Airport.

What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

The necessary travel and health documents for your Washington, D.C. Dulles Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$99 Cheap Flights from Louisville to Washington, D.C. Dulles Intl Airport in 2025/26

Q: How many flights depart from Louisville to Washington, D.C. Dulles Intl Airport on average per day?

As of September 2025, there are 7 flights per day flying from Louisville to Washington, D.C. Dulles Intl Airport. The most common time of day flights depart is 9:00AM, with 52% of flights taking off in the afternoon.

Q: How many flights depart from Louisville to Washington, D.C. Dulles Intl Airport on average per week?

As of September 2025, 51 flights take off from Louisville and land in Washington, D.C. Dulles Intl Airport each week. The most common flight departure day for this route is Mon, with 16% of weekly flights taking off on this day.

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Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

2:03 pm - 3:45 pmSDF-IAD

1h 42mnonstop

7:00 pm - 8:48 pmIAD-SDF

1h 48mnonstop

$189United Airlines

Find Deal

Tue, Oct 14 - Sat, Oct 18

9:35 am - 11:14 amSDF-IAD

1h 39mnonstop

5:10 pm - 6:49 pmIAD-SDF

1h 39mnonstop

$194United Airlines

Find Deal

Fri, Feb 13 - Mon, Feb 16

6:26 pm - 11:02 pmSDF-IAD

4h 36m1 stop

6:00 am - 11:37 amIAD-SDF

5h 37m1 stop

$197Delta

Find Deal

Tue, Feb 17 - Wed, Feb 18

9:55 am - 11:34 amSDF-IAD

1h 39mnonstop

1:05 pm - 2:51 pmIAD-SDF

1h 46mnonstop

$199United Airlines

Find Deal

Tue, Sep 30 - Sat, Oct 4

6:00 am - 11:31 amSDF-IAD

5h 31m1 stop

6:05 am - 9:50 amIAD-SDF

3h 45m1 stop

$203Delta

Find Deal

Tue, Oct 21 - Sat, Oct 25

7:15 am - 7:51 pmSDF-IAD

12h 36m1 stop

10:14 am - 9:54 amIAD-SDF

23h 40m1 stop

$221Multiple Airlines

Find Deal

Fri, Oct 31 - Fri, Nov 7

9:14 am - 9:19 amSDF-IAD

24h 05m1 stop

9:58 pm - 10:47 pmIAD-SDF

24h 49m1 stop

$241Multiple Airlines

Find Deal

Sun, Oct 19 - Fri, Oct 24

5:02 pm - 11:53 pmSDF-IAD

6h 51m1 stop

6:34 am - 11:33 amIAD-SDF

4h 59m1 stop

$266American Airlines

Find Deal

Thu, Oct 23 - Sat, Oct 25

5:02 pm - 11:53 pmSDF-IAD

6h 51m1 stop

6:34 am - 11:33 amIAD-SDF

4h 59m1 stop

$267American Airlines

Find Deal

Fri, Oct 10 - Sat, Oct 18

9:54 pm - 8:23 pmSDF-IAD

22h 29m1 stop

6:13 pm - 3:30 pmIAD-SDF

21h 17m1 stop

$301Allegiant Air

Find Deal

Wed, Oct 1 - Sun, Oct 5

Delta flights from Louisville to Washington, D.C. Dulles Intl Airport

Our best Delta deals on Louisville to Washington, D.C. Dulles Intl Airport flight tickets

Delta

Feb 17

SDF6:26 pmLouisville Intl

4h 36m

1 stop

IAD11:02 pmWashington, D.C. Dulles Intl

Feb 18

IAD6:00 amWashington, D.C. Dulles Intl

5h 37m

1 stop

SDF11:37 amLouisville Intl

$197

Find similar

Delta

Oct 21

SDF6:00 amLouisville Intl

5h 31m

1 stop

IAD11:31 amWashington, D.C. Dulles Intl

Oct 25

IAD6:05 amWashington, D.C. Dulles Intl

3h 45m

1 stop

SDF9:50 amLouisville Intl

$203

Find similar

Delta

Dec 12

SDF7:59 pmLouisville Intl

4h 17m

1 stop

IAD12:16 amWashington, D.C. Dulles Intl

Dec 15

IAD7:21 pmWashington, D.C. Dulles Intl

4h 44m

1 stop

SDF12:05 amLouisville Intl

$209

Find similar

United Airlines flights from Louisville to Washington, D.C. Dulles Intl Airport

Our best United Airlines deals on Louisville to Washington, D.C. Dulles Intl Airport flight tickets

United Airlines

Oct 14

SDF2:03 pmLouisville Intl

1h 42m

IAD3:45 pmWashington, D.C. Dulles Intl

Oct 18

IAD7:00 pmWashington, D.C. Dulles Intl

1h 48m

SDF8:48 pmLouisville Intl

$189

Find similar

United Airlines

Feb 13

SDF9:35 amLouisville Intl

1h 39m

IAD11:14 amWashington, D.C. Dulles Intl

Feb 16

IAD5:10 pmWashington, D.C. Dulles Intl

1h 39m

SDF6:49 pmLouisville Intl

$194

Find similar

United Airlines

Sep 30

SDF9:55 amLouisville Intl

1h 39m

IAD11:34 amWashington, D.C. Dulles Intl

Oct 4

IAD1:05 pmWashington, D.C. Dulles Intl

1h 46m

SDF2:51 pmLouisville Intl

$199

Find similar

momondo 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

Tue 10/14

2:03 pm-3:45 pm

Nonstop1h 42m

Washington, D.C. Dulles Intl

Sat 10/18

7:00 pm-8:48 pm

Nonstop1h 48m

$189

LouisvilleWashington, D.C.

SDF - IAD

SDFIAD

Louisville Intl

Fri 2/13

9:35 am-11:14 am

Nonstop1h 39m

Washington, D.C. Dulles Intl

Mon 2/16

5:10 pm-6:49 pm

Nonstop1h 39m

$194

LouisvilleWashington, D.C.

SDF - IAD

SDFIAD

Louisville Intl

Tue 2/17

6:26 pm-11:02 pm

1 stop4h 36m

Washington, D.C. Dulles Intl

Wed 2/18

6:00 am-11:37 am

1 stop5h 37m

$197

LouisvilleWashington, D.C.

SDF - IAD

SDFIAD

Louisville Intl

Tue 9/30

9:55 am-11:34 am

Nonstop1h 39m

Washington, D.C. Dulles Intl

Sat 10/4

1:05 pm-2:51 pm

Nonstop1h 46m

$199

LouisvilleWashington, D.C.

SDF - IAD

SDFIAD

Louisville Intl

Tue 10/21

6:00 am-11:31 am

1 stop5h 31m

Washington, D.C. Dulles Intl

Sat 10/25

6:05 am-9:50 am

1 stop3h 45m

$203

LouisvilleWashington, D.C.

SDF - IAD

SDFIAD

Louisville Intl

Fri 10/31

7:15 am-7:51 pm

1 stop12h 36m

Washington, D.C. Dulles Intl

Fri 11/7

10:14 am-9:54 am

1 stop23h 40m

$221

LouisvilleWashington, D.C.

SDF - IAD

SDFIAD

Louisville Intl

Sun 10/19

9:14 am-9:19 am

1 stop24h 05m

Washington, D.C. Dulles Intl

Fri 10/24

9:58 pm-10:47 pm

1 stop24h 49m

$241

LouisvilleWashington, D.C.

SDF - IAD

SDFIAD

Louisville Intl

Thu 10/23

5:02 pm-11:53 pm

1 stop6h 51m

Washington, D.C. Dulles Intl

Sat 10/25

6:34 am-11:33 am

1 stop4h 59m

$266

LouisvilleWashington, D.C.

SDF - IAD

SDFIAD

Louisville Intl

Fri 10/10

5:02 pm-11:53 pm

1 stop6h 51m

Washington, D.C. Dulles Intl

Sat 10/18

6:34 am-11:33 am

1 stop4h 59m

$267

LouisvilleWashington, D.C.

SDF - IAD

SDFIAD

Louisville Intl

Wed 10/1

9:54 pm-8:23 pm

1 stop22h 29m

Washington, D.C. Dulles Intl

Sun 10/5

6:13 pm-3:30 pm

1 stop21h 17m

$301

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Louisville to Washington, D.C. Dulles Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

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

In general, July is the cheapest month to fly from Louisville to Washington, D.C. Dulles Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $249. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of July, then flying in December is also cheap. Prices for this month can be found on momondo for an average of $270.

What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Our data shows that Friday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $649. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from Louisville to Washington, D.C. Dulles Intl Airport for around $897.

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Flying to Washington, D.C. Dulles Intl Airport from Louisville in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $218 when looking at flights departing in the afternoon. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $1,052 on average. Flights to Washington, D.C. Dulles Intl Airport from Louisville at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Louisville Intl to Washington, D.C. Dulles Intl flight route?

Fly from Louisville Intl to Washington, D.C. Dulles Intl for the best Louisville Intl - Washington, D.C. Dulles Intl flight prices

How far in advance should I book a flight to Washington, D.C. Dulles Intl Airport?

You are more likely to see cheaper flights to Washington, D.C. Dulles Intl Airport from Louisville when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Dulles Intl Airport for around $307 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Dulles Intl Airport from Louisville for as low as $233 on momondo.

What cabin class options are available on Louisville Intl to Washington, D.C. Dulles Intl flights?

There are 4 cabin classes available to choose from on Louisville Intl to Washington, D.C. Dulles Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Louisville to Washington, D.C. Dulles Intl Airport flights?

You could potentially save up to 24% on your flight if you consider stops on a Louisville to Washington, D.C. Dulles Intl Airport flight.

How have Louisville to Washington, D.C. Dulles Intl Airport flight prices changed over time?

As of September 2025, prices for Louisville to Washington, D.C. Dulles Intl Airport flights are approximately 7% cheaper when compared to flights at the same time last year.

When to book flights from Louisville to Washington, D.C. Dulles Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Louisville to Washington, D.C. Dulles Intl Airport according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Louisville to Washington, D.C. Dulles Intl Airport (SDF to IAD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Louisville to Washington, D.C. Dulles Intl Airport

Best Price Found	$227
Fastest flight time	1h 34m
Direct flights	Every day

The best one-way flight to Washington, D.C. Dulles Intl Airport from Louisville in the past 72 hours is $227. The best round-trip flight deal from Louisville to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $319.

The fastest flight from Louisville to Washington, D.C. Dulles Intl Airport takes 1h 34m

Direct flights go from Louisville to Washington, D.C. Dulles Intl Airport every day.

Search flight deals

How far is Louisville Intl to Washington, D.C. Dulles Intl by plane?
The distance between Louisville Intl and Washington, D.C. Dulles Intl is about 450.6 mi. 1h 36m is a normal flight duration for this route.
When did momondo last update prices for flights from Louisville Intl Airport to Washington, D.C. Dulles Intl Airport?
Prices for flights from Louisville Intl Airport to Washington, D.C. Dulles Intl Airport refresh daily.
How many operators does momondo search for flights from Louisville Intl Airport to Washington, D.C. Dulles Intl Airport?
As of September 2025, there are 2 operators available to choose from for flights from Louisville Intl Airport to Washington, D.C. Dulles Intl Airport.
How old do you have to be to fly from Louisville Intl Airport to Washington, D.C. Dulles Intl Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to Washington, D.C. Dulles Intl Airport.
What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?
The necessary travel and health documents for your Washington, D.C. Dulles Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Louisville to Washington, D.C. Dulles Intl Airport?
Based on momondo bookings for flights between Louisville and Washington, D.C. Dulles Intl Airport, the leading plane model is Embraer 175 (Enhanced Winglets), making up 37.98% of the total bookings. Other popular models include Embraer 175 with 12.89%, Canadair (Bombardier) Regional Jet 700 with 10.80%, and Boeing 737 MAX 8 with 6.62%.
What is the most popular airline from Louisville to Washington, D.C. Dulles Intl Airport?
Based on momondo bookings for flights between Louisville and Washington, D.C. Dulles Intl Airport, the leading airline is United Airlines, making up 95% of the total bookings. Other popular airlines include Delta with 5%.

Best airlines flying from Louisville to Washington, D.C. Dulles Intl Airport

Compare and see reviews for airlines that fly from Louisville to Washington, D.C. Dulles Intl Airport with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $189	Free Cancellation	Rating 7.4 8,924 reviews		Search United Airlines flights
Delta	PriceFrom $208	Free Cancellation	Rating 7.9 7,957 reviews		Search Delta flights

United Airlines Flights From Louisville to Washington, D.C. Dulles Intl Airport
The lowest priced United Airlines flight from Louisville to Washington, D.C. Dulles Intl Airport from the last 72 hours was $189. Generally, United Airlines has 19 flights on this route every week with an average price of $286. United Airlines is rated 7.4/10 by our users.

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Arlington

Winchester

Woodbridge

Waldorf

Tysons

Laurel

Colonial Beach

Silver Spring

Fredericksburg

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Manassas

Reston

Fairfax

Glen Burnie

Gaithersburg

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Why should I use momondo to find a flight deal from Louisville to Washington, D.C.?

Finding the right flight to Washington, D.C. from Louisville is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Washington, D.C. quick and easy, saving you time and money.

Can I find flights from Louisville to Washington, D.C. with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Louisville to Washington, D.C. flights to just show those with flexible booking policies.

How can momondo help me find flights from Louisville to Washington, D.C.?

Once you have performed a search for Louisville to Washington, D.C. flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Louisville to Washington, D.C. right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Louisville to Washington, D.C. flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Washington, D.C. Dulles Intl Airport trip

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Washington, D.C. Dulles Intl Airport flight routes

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Flights from Los Angeles to Washington, D.C. Dulles Intl

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Cheap flights from Louisville to Washington, D.C. from $99

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Louisville to Washington, D.C. departing on 10/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Delta flights from Louisville to Washington, D.C. Dulles Intl Airport

Our best Delta deals on Louisville to Washington, D.C. Dulles Intl Airport flight tickets

United Airlines flights from Louisville to Washington, D.C. Dulles Intl Airport

Our best United Airlines deals on Louisville to Washington, D.C. Dulles Intl Airport flight tickets

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How to get the cheapest flight ticket from Louisville to Washington, D.C. Dulles Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

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

What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

What is the cheapest Louisville Intl to Washington, D.C. Dulles Intl flight route?

Fly from Louisville Intl to Washington, D.C. Dulles Intl for the best Louisville Intl - Washington, D.C. Dulles Intl flight prices

How far in advance should I book a flight to Washington, D.C. Dulles Intl Airport?

What cabin class options are available on Louisville Intl to Washington, D.C. Dulles Intl flights?

There are 4 cabin classes available to choose from on Louisville Intl to Washington, D.C. Dulles Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Louisville to Washington, D.C. Dulles Intl Airport flights?

You could potentially save up to 24% on your flight if you consider stops on a Louisville to Washington, D.C. Dulles Intl Airport flight.

How have Louisville to Washington, D.C. Dulles Intl Airport flight prices changed over time?

As of September 2025, prices for Louisville to Washington, D.C. Dulles Intl Airport flights are approximately 7% cheaper when compared to flights at the same time last year.

What is the cheapest airline that flies from Louisville Intl to Washington, D.C. Dulles Intl?

Delta, Allegiant Air, and American Airlines are the most popular carriers operating from Louisville Intl to Washington, D.C. Dulles Intl

What airlines fly to Washington, D.C. Dulles Intl Airport?

How many flights depart from Louisville to Washington, D.C. Dulles Intl Airport on average per day?

As of September 2025, there are 7 flights per day flying from Louisville to Washington, D.C. Dulles Intl Airport. The most common time of day flights depart is 9:00AM, with 52% of flights taking off in the afternoon.

How many flights depart from Louisville to Washington, D.C. Dulles Intl Airport on average per week?

As of September 2025, 51 flights take off from Louisville and land in Washington, D.C. Dulles Intl Airport each week. The most common flight departure day for this route is Mon, with 16% of weekly flights taking off on this day.

When to book flights from Louisville to Washington, D.C. Dulles Intl Airport

Cheap Louisville to Washington, D.C. Dulles Intl Airport (SDF to IAD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Louisville to Washington, D.C. Dulles Intl Airport

Best Price Found

Fastest flight time

Direct flights

How far is Louisville Intl to Washington, D.C. Dulles Intl by plane?

When did momondo last update prices for flights from Louisville Intl Airport to Washington, D.C. Dulles Intl Airport?

How many operators does momondo search for flights from Louisville Intl Airport to Washington, D.C. Dulles Intl Airport?

How old do you have to be to fly from Louisville Intl Airport to Washington, D.C. Dulles Intl Airport?

What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

What is the most popular plane model from Louisville to Washington, D.C. Dulles Intl Airport?

What is the most popular airline from Louisville to Washington, D.C. Dulles Intl Airport?

Best airlines flying from Louisville to Washington, D.C. Dulles Intl Airport

Compare and see reviews for airlines that fly from Louisville to Washington, D.C. Dulles Intl Airport with momondo

United Airlines Flights From Louisville to Washington, D.C. Dulles Intl Airport

Traveling to a place near Washington, D.C.?

Why use momondo?

Why should I use momondo to find a flight deal from Louisville to Washington, D.C.?

Can I find flights from Louisville to Washington, D.C. with flexible booking policies on momondo?

How can momondo help me find flights from Louisville to Washington, D.C.?

I’m not ready to book a flight from Louisville to Washington, D.C. right now. Can momondo alert me if prices change?

An easier way to manage your Washington, D.C. Dulles Intl Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Washington, D.C.

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