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Cheap flights from Louisville to Washington, D.C. from $125

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 5/10. 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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Find the cheapest flights from Louisville to Washington, D.C.

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
5:50 am - 7:30 am
SDF
-
IAD
1h 40mnonstop
United Airlines Logo
12:48 pm - 2:37 pm
IAD
-
SDF
1h 49mnonstop
$207United Airlines
Wed, May 20 - Wed, May 27
United Airlines Logo
6:00 am - 7:35 am
SDF
-
IAD
1h 35mnonstop
United Airlines Logo
8:31 am - 10:23 am
IAD
-
SDF
1h 52mnonstop
$229United Airlines
Wed, Jul 1 - Mon, Jul 6
Multiple Airlines Logo
6:55 pm - 11:23 am
SDF
-
IAD
16h 28m
2 stops
Multiple Airlines Logo
6:18 pm - 8:18 am
IAD
-
SDF
14h 00m
1 stop
$241Multiple Airlines
Thu, May 21 - Sun, May 24
United Airlines Logo
9:55 am - 11:35 am
SDF
-
IAD
1h 40mnonstop
United Airlines Logo
12:50 pm - 2:47 pm
IAD
-
SDF
1h 57mnonstop
$242United Airlines
Wed, Apr 22 - Sun, Apr 26
United Airlines Logo
9:55 am - 11:35 am
SDF
-
IAD
1h 40mnonstop
United Airlines Logo
10:08 pm - 11:59 pm
IAD
-
SDF
1h 51mnonstop
$244United Airlines
Fri, May 15 - Sun, May 17
Multiple Airlines Logo
6:55 pm - 11:23 am
SDF
-
IAD
16h 28m
2 stops
Multiple Airlines Logo
6:18 pm - 8:18 am
IAD
-
SDF
14h 00m
1 stop
$248Multiple Airlines
Thu, May 21 - Sun, May 24
Delta Logo
10:46 am - 4:15 pm
SDF
-
IAD
5h 29m
1 stop
Delta Logo
6:00 am - 10:26 am
IAD
-
SDF
4h 26m
1 stop
$249Delta
Thu, Apr 16 - Sun, Apr 19
American Airlines Logo
7:52 pm - 11:59 pm
SDF
-
IAD
4h 07m
1 stop
American Airlines Logo
8:11 pm - 12:25 am
IAD
-
SDF
4h 14m
1 stop
$255American Airlines
Thu, Apr 16 - Mon, Apr 20
American Airlines Logo
7:52 pm - 11:59 pm
SDF
-
IAD
4h 07m
1 stop
American Airlines Logo
8:11 pm - 12:25 am
IAD
-
SDF
4h 14m
1 stop
$261American Airlines
Sat, May 16 - Sun, May 17
Delta Logo
6:00 am - 11:39 am
SDF
-
IAD
5h 39m
1 stop
Delta Logo
6:00 am - 9:59 am
IAD
-
SDF
3h 59m
1 stop
$262Delta
Wed, May 20 - Sun, May 24

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
May 20
SDF5:50 amLouisville Intl
1h 40m
IAD7:30 amWashington, D.C. Dulles Intl
May 27
IAD12:48 pmWashington, D.C. Dulles Intl
1h 49m
SDF2:37 pmLouisville Intl
$207
United Airlines
Jul 1
SDF6:00 amLouisville Intl
1h 35m
IAD7:35 amWashington, D.C. Dulles Intl
Jul 6
IAD8:31 amWashington, D.C. Dulles Intl
1h 52m
SDF10:23 amLouisville Intl
$229
United Airlines
May 8
SDF5:50 amLouisville Intl
1h 40m
IAD7:30 amWashington, D.C. Dulles Intl
May 11
IAD10:08 pmWashington, D.C. Dulles Intl
1h 51m
SDF11:59 pmLouisville Intl
$242

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
Apr 16
SDF10:46 amLouisville Intl
5h 29m
1 stop
IAD4:15 pmWashington, D.C. Dulles Intl
Apr 19
IAD6:00 amWashington, D.C. Dulles Intl
4h 26m
1 stop
SDF10:26 amLouisville Intl
$249
Delta
Jun 10
SDF9:25 amLouisville Intl
5h 19m
1 stop
IAD2:44 pmWashington, D.C. Dulles Intl
Jun 16
IAD6:00 amWashington, D.C. Dulles Intl
5h 36m
1 stop
SDF11:36 amLouisville Intl
$262
Delta
Jun 12
SDF7:30 pmLouisville Intl
4h 39m
1 stop
IAD12:09 amWashington, D.C. Dulles Intl
Jun 15
IAD6:00 amWashington, D.C. Dulles Intl
3h 55m
1 stop
SDF9:55 amLouisville Intl
$269

momondo Fare Finder

 
Customize your flight search to find flights from Louisville to Washington, D.C. Dulles Intl Airport 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, momondo users made 832,500 searches. Data last updated March 17, 2026.
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

Cheapest round-trip

LouisvilleWashington, D.C.

SDF - IAD

SDFIAD

Louisville Intl

Wed 5/20

5:50 am-7:30 am

Nonstop1h 40m

Washington, D.C. Dulles Intl

Wed 5/27

12:48 pm-2:37 pm

Nonstop1h 49m

$207
Quickest round-trip

LouisvilleWashington, D.C.

SDF - IAD

SDFIAD

Louisville Intl

Wed 7/1

6:00 am-7:35 am

Nonstop1h 35m

Washington, D.C. Dulles Intl

Mon 7/6

8:31 am-10:23 am

Nonstop1h 52m

$229

LouisvilleWashington, D.C.

SDF - IAD

SDFIAD

Louisville Intl

Thu 5/21

6:55 pm-11:23 am

2 stops16h 28m

Washington, D.C. Dulles Intl

Sun 5/24

6:18 pm-8:18 am

1 stop14h 00m

$241

LouisvilleWashington, D.C.

SDF - IAD

SDFIAD

Louisville Intl

Wed 4/22

9:55 am-11:35 am

Nonstop1h 40m

Washington, D.C. Dulles Intl

Sun 4/26

12:50 pm-2:47 pm

Nonstop1h 57m

$242

LouisvilleWashington, D.C.

SDF - IAD

SDFIAD

Louisville Intl

Fri 5/15

9:55 am-11:35 am

Nonstop1h 40m

Washington, D.C. Dulles Intl

Sun 5/17

10:08 pm-11:59 pm

Nonstop1h 51m

$244

LouisvilleWashington, D.C.

SDF - IAD

SDFIAD

Louisville Intl

Thu 5/21

6:55 pm-11:23 am

2 stops16h 28m

Washington, D.C. Dulles Intl

Sun 5/24

6:18 pm-8:18 am

1 stop14h 00m

$248

LouisvilleWashington, D.C.

SDF - IAD

SDFIAD

Louisville Intl

Thu 4/16

10:46 am-4:15 pm

1 stop5h 29m

Washington, D.C. Dulles Intl

Sun 4/19

6:00 am-10:26 am

1 stop4h 26m

$249

LouisvilleWashington, D.C.

SDF - IAD

SDFIAD

Louisville Intl

Thu 4/16

7:52 pm-11:59 pm

1 stop4h 07m

Washington, D.C. Dulles Intl

Mon 4/20

8:11 pm-12:25 am

1 stop4h 14m

$255

LouisvilleWashington, D.C.

SDF - IAD

SDFIAD

Louisville Intl

Sat 5/16

7:52 pm-11:59 pm

1 stop4h 07m

Washington, D.C. Dulles Intl

Sun 5/17

8:11 pm-12:25 am

1 stop4h 14m

$261

LouisvilleWashington, D.C.

SDF - IAD

SDFIAD

Louisville Intl

Wed 5/20

6:00 am-11:39 am

1 stop5h 39m

Washington, D.C. Dulles Intl

Sun 5/24

6:00 am-9:59 am

1 stop3h 59m

$262

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Washington, D.C. from

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?

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 September is also cheap. Prices for this month can be found on momondo for an average of $277.

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 $572. 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 $817.

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 morning is the least expensive time of day to depart. momondo users have found prices as low as $471 when looking at flights departing in the morning. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $983 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 $322 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 $198 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?

No. A direct flight is the cheapest option for a flight between Louisville to Washington, D.C. Dulles Intl Airport.

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

As of March 2026, prices for Louisville to Washington, D.C. Dulles Intl Airport flights are approximately 199% more expensive 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

$293

Fastest flight time

1h 35m

Direct flights

Every day
The best one-way flight to Washington, D.C. Dulles Intl Airport from Louisville in the past 72 hours is $293. The best round-trip flight deal from Louisville to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $354.
The fastest flight from Louisville to Washington, D.C. Dulles Intl Airport takes 1h 35m
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 35m 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?

  • 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?

  • 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
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $189Free CancellationRating
7.4
9,431 reviews
Search United Airlines flights
DeltaPriceFrom $208Free CancellationRating
7.9
8,288 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 14 flights on this route every week with an average price of $287. United Airlines is rated 7.4/10 by our users.

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

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Gettysburg
Arlington
Winchester
Waldorf
Woodbridge
Colonial Beach
Laurel
Towson
Gaithersburg
Silver Spring
Fredericksburg
Rockville
Tysons
Manassas
Springfield
Linthicum Heights
Bethesda
Sterling

Why use momondo?

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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