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

Southwest, Spirit Airlines, and Delta are the most popular carriers operating from Louisville Intl to Washington, D.C.

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

The number of flights available between Louisville and Washington, D.C. is 13 per day as of August 2025. The most frequent departure time is 9:00AM, with 53% of daily flights leaving at noon.

What airlines fly to Washington, D.C.?

American Airlines, Delta and United Airlines are the top three most popular airlines that fly to Washington, D.C. from Louisville according to our data. American Airlines is the first choice among our users, with 34% of people opting to fly with this airline when traveling to Washington, D.C.. Keep in mind that there are 5 different airlines that fly to Washington, D.C. on a routine basis, so you have a few additional options to choose from.

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

As of August 2025, there are 92 flights per week flying from Louisville to Washington, D.C.. The most common day of the week flights depart is Mon, with 16% of flights taking off on this day.

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

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

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

There are 4 operators available for flights from Louisville Intl Airport to Washington, D.C. as of August 2025.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Louisville Intl Airport to Washington, D.C..

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

The travel and health documents you'll need for your trip to Washington, D.C. may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington, D.C.. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$94 Cheap Flights from Louisville to Washington, D.C. in 2025

Q: What is the typical price of a round-trip flight between Louisville and Washington, D.C.?

Prices are currently low for flights on this route. Typical prices usually range from $228 to $351. The lowest price recently found on this route was $189.

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

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

6:00 am - 7:45 amSDF-DCA

1h 45mnonstop

8:30 pm - 10:22 pmDCA-SDF

1h 52mnonstop

$189American Airlines

Find Deal

Sat, Sep 13 - Sun, Sep 14

1:00 pm - 2:41 pmSDF-IAD

1h 41mnonstop

3:30 pm - 5:15 pmIAD-SDF

1h 45mnonstop

$189United Airlines

Find Deal

Sat, Sep 20 - Tue, Sep 23

11:15 am - 12:59 pmSDF-DCA

1h 44mnonstop

8:30 pm - 10:22 pmDCA-SDF

1h 52mnonstop

$194American Airlines

Find Deal

Fri, Sep 12 - Sat, Sep 13

1:00 pm - 2:41 pmSDF-IAD

1h 41mnonstop

1:05 pm - 2:50 pmIAD-SDF

1h 45mnonstop

$194United Airlines

Find Deal

Fri, Sep 12 - Sat, Sep 13

3:09 pm - 8:42 pmSDF-DCA

5h 33m1 stop

8:50 am - 4:18 pmDCA-SDF

7h 28m1 stop

$197Delta

Find Deal

Tue, Sep 23 - Wed, Oct 1

2:59 pm - 9:13 pmSDF-IAD

6h 14m1 stop

6:10 am - 9:57 amIAD-SDF

3h 47m1 stop

$197Delta

Find Deal

Tue, Feb 17 - Wed, Feb 18

6:25 am - 10:00 amSDF-DCA

3h 35m1 stop

7:25 am - 2:00 pmDCA-SDF

6h 35m1 stop

$198Southwest

Find Deal

Wed, Oct 15 - Sat, Oct 18

10:14 am - 3:32 pmSDF-BWI

5h 18m1 stop

4:00 pm - 10:04 pmBWI-SDF

6h 04m1 stop

$200Spirit Airlines

Find Deal

Thu, Sep 18 - Sat, Sep 20

3:20 pm - 4:55 pmSDF-BWI

1h 35mnonstop

11:25 am - 1:15 pmBWI-SDF

1h 50mnonstop

$217Southwest

Find Deal

Tue, Dec 2 - Wed, Dec 10

10:14 am - 3:32 pmSDF-BWI

5h 18m1 stop

1:17 pm - 9:19 amBWI-SDF

20h 02m1 stop

$219Spirit Airlines

Find Deal

Thu, Sep 25 - Mon, Sep 29

United Airlines flights from Louisville to Washington, D.C.

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

United Airlines

Sep 20

SDF1:00 pmLouisville Intl

1h 41m

IAD2:41 pmWashington, D.C. Dulles Intl

Sep 23

IAD3:30 pmWashington, D.C. Dulles Intl

1h 45m

SDF5:15 pmLouisville Intl

$189

Find similar

United Airlines

Sep 12

SDF1:00 pmLouisville Intl

1h 41m

IAD2:41 pmWashington, D.C. Dulles Intl

Sep 13

IAD1:05 pmWashington, D.C. Dulles Intl

1h 45m

SDF2:50 pmLouisville Intl

$194

Find similar

United Airlines

Dec 22

SDF9:55 amLouisville Intl

1h 41m

IAD11:36 amWashington, D.C. Dulles Intl

Dec 25

IAD5:15 pmWashington, D.C. Dulles Intl

1h 56m

SDF7:11 pmLouisville Intl

$199

Find similar

Delta flights from Louisville to Washington, D.C.

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

Delta

Feb 17

SDF2:59 pmLouisville Intl

6h 14m

1 stop

IAD9:13 pmWashington, D.C. Dulles Intl

Feb 18

IAD6:10 amWashington, D.C. Dulles Intl

3h 47m

1 stop

SDF9:57 amLouisville Intl

$197

Find similar

Delta

Sep 20

SDF10:32 amLouisville Intl

5h 55m

1 stop

IAD4:27 pmWashington, D.C. Dulles Intl

Sep 24

IAD10:07 amWashington, D.C. Dulles Intl

4h 17m

1 stop

SDF2:24 pmLouisville Intl

$203

Find similar

Delta

Sep 19

SDF6:33 pmLouisville Intl

4h 33m

1 stop

IAD11:06 pmWashington, D.C. Dulles Intl

Sep 22

IAD5:25 pmWashington, D.C. Dulles Intl

6h 27m

1 stop

SDF11:52 pmLouisville Intl

$209

Find similar

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

LouisvilleWashington, D.C.

SDF - DCA

SDFDCA

Louisville Intl

Sat 9/13

6:00 am-7:45 am

Nonstop1h 45m

Washington, D.C. Reagan-National

Sun 9/14

8:30 pm-10:22 pm

Nonstop1h 52m

$189

LouisvilleWashington, D.C.

SDF - IAD

SDFIAD

Louisville Intl

Sat 9/20

1:00 pm-2:41 pm

Nonstop1h 41m

Washington, D.C. Dulles Intl

Tue 9/23

3:30 pm-5:15 pm

Nonstop1h 45m

$189

LouisvilleWashington, D.C.

SDF - DCA

SDFDCA

Louisville Intl

Fri 9/12

11:15 am-12:59 pm

Nonstop1h 44m

Washington, D.C. Reagan-National

Sat 9/13

8:30 pm-10:22 pm

Nonstop1h 52m

$194

LouisvilleWashington, D.C.

SDF - IAD

SDFIAD

Louisville Intl

Fri 9/12

1:00 pm-2:41 pm

Nonstop1h 41m

Washington, D.C. Dulles Intl

Sat 9/13

1:05 pm-2:50 pm

Nonstop1h 45m

$194

LouisvilleWashington, D.C.

SDF - DCA

SDFDCA

Louisville Intl

Tue 9/23

3:09 pm-8:42 pm

1 stop5h 33m

Washington, D.C. Reagan-National

Wed 10/1

8:50 am-4:18 pm

1 stop7h 28m

$197

LouisvilleWashington, D.C.

SDF - IAD

SDFIAD

Louisville Intl

Tue 2/17

2:59 pm-9:13 pm

1 stop6h 14m

Washington, D.C. Dulles Intl

Wed 2/18

6:10 am-9:57 am

1 stop3h 47m

$197

LouisvilleWashington, D.C.

SDF - DCA

SDFDCA

Louisville Intl

Wed 10/15

6:25 am-10:00 am

1 stop3h 35m

Washington, D.C. Reagan-National

Sat 10/18

7:25 am-2:00 pm

1 stop6h 35m

$198

LouisvilleBaltimore

SDF - BWI

SDFBWI

Louisville Intl

Thu 9/18

10:14 am-3:32 pm

1 stop5h 18m

Baltimore/Washington

Sat 9/20

4:00 pm-10:04 pm

1 stop6h 04m

$200

LouisvilleBaltimore

SDF - BWI

SDFBWI

Louisville Intl

Tue 12/2

3:20 pm-4:55 pm

Nonstop1h 35m

Baltimore/Washington

Wed 12/10

11:25 am-1:15 pm

Nonstop1h 50m

$217

LouisvilleBaltimore

SDF - BWI

SDFBWI

Louisville Intl

Thu 9/25

10:14 am-3:32 pm

1 stop5h 18m

Baltimore/Washington

Mon 9/29

1:17 pm-9:19 am

1 stop20h 02m

$219

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.

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 typical price of a round-trip flight between Louisville and Washington, D.C.?

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

The month of June is, on average, the cheapest month to fly to Washington, D.C. from Louisville, with most prices found around $241. If you’re not able to fly to Washington, D.C. in June, then July is your next best option. Flight prices from Louisville to Washington, D.C. during July average around $244.

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

On average, the least expensive day to fly to Washington, D.C. from Louisville is on a Friday. momondo users have found tickets for Friday departures for as low as $376. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Louisville to Washington, D.C. for around $558.

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

In the evening is the cheapest time of day to fly from Louisville to Washington, D.C. when you can find flight prices for as low as $290. Flying to Washington, D.C. in the evening is an ideal time because this is during off-peak travel hours. Try not to purchase tickets at noon because they tend to be around $1,059. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

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

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

You are more likely to see cheaper flights to Washington, D.C. from Louisville when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. for around $301 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. from Louisville for as low as $233 on momondo.

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

There are 4 cabin classes available to choose from on Louisville Intl to Washington, D.C. 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. flights?

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

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

As of August 2025, prices for Louisville to Washington, D.C. flights are approximately 4% more expensive when compared to flights at the same time last year.

When to book flights from Louisville to Washington, D.C.

Are you open to changing your travel dates? Check out the ideal times to fly from Louisville to Washington, D.C. 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. (SDF to WAS) flight deals and tips

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

Best Price Found	$125
Fastest flight time	1h 30m
Direct flights	Every day
Airports in Washington, D.C.	3 airports

The best one-way flight to Washington, D.C. from Louisville in the past 72 hours is $125. The best round-trip flight deal from Louisville to Washington, D.C. found on momondo in the last 72 hours is $219.

The fastest flight from Louisville to Washington, D.C. takes 1h 30m

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

There are 3 airports near Washington, D.C.: Washington, D.C. Reagan-National (DCA), Baltimore/Washington (BWI), Washington, D.C. Dulles Intl (IAD)

Search flight deals

How far is Louisville Intl to Washington, D.C. by plane?
Louisville Intl and Washington, D.C. are 472.6 mi apart from one another. By plane, this route typically takes 1h 35m.
When did momondo last update prices for flights from Louisville Intl Airport to Washington, D.C.?
Prices for flights from Louisville Intl Airport to Washington, D.C. refresh daily.
How many operators does momondo search for flights from Louisville Intl Airport to Washington, D.C.?
There are 4 operators available for flights from Louisville Intl Airport to Washington, D.C. as of August 2025.
How old do you have to be to fly from Louisville Intl Airport to Washington, D.C.?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Louisville Intl Airport to Washington, D.C..
What documentation or ID do you need to fly to Washington, D.C.?
The travel and health documents you'll need for your trip to Washington, D.C. may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington, D.C.. It is always advisable to seek 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.?
Based on momondo bookings for flights between Louisville and Washington, D.C., the leading plane model is Embraer 175, making up 25.56% of the total bookings. Other popular models include Embraer 175 (Enhanced Winglets) with 19.08%, Canadair (Bombardier) Regional Jet 700 with 17.59%, and Boeing 737-700 Passenger/BBJ1 (winglets) with 9.54%.
What is the most popular airline from Louisville to Washington, D.C.?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Louisville to Washington, D.C. is American Airlines (52% of total bookings). The next most popular airlines are United Airlines (39%) and Southwest (9%).

Best airlines flying from Louisville to Washington, D.C.

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

Airline	Rating	Free Cancellation	Price
Southwest	PriceFrom $187	Free Cancellation	Rating 8.0 4,243 reviews	Search Southwest flights
American Airlines	PriceFrom $188	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
United Airlines	PriceFrom $189	Free Cancellation	Rating 7.4 8,940 reviews	Search United Airlines flights
Delta	PriceFrom $198	Free Cancellation	Rating 7.9 7,981 reviews	Search Delta flights

United Airlines Flights From Louisville to Washington, D.C.
Across 21 United Airlines flights from Louisville to Washington, D.C. this week, the average price was $291, with the best United Airlines deals starting from $189 round-trip. 8,940 users have rated United Airlines on momondo, with an average score of 7.4/10.
American Airlines Flights From Louisville to Washington, D.C.
The best American Airlines deal for Louisville to Washington, D.C. flight tickets found on momondo in the last 72 hours was $188, round-trip. It should be noted that an average American Airlines flight deal for this route in this time was higher, at $334 round-trip. American Airlines operates 20 flights out of Louisville into Washington, D.C. in an average week, so prices vary by time and availability. 10,000 American Airlines reviews by users on momondo have scored the airline at 7.2/10.

Alexandria

Gettysburg

Arlington

National Harbor

Woodbridge

Waldorf

Tysons

Laurel

Silver Spring

Colonial Beach

Fredericksburg

Towson

Manassas

Rockville

Gaithersburg

Reston

Fairfax

Glen Burnie

Springfield

Linthicum Heights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Louisville to Washington, D.C. for you.

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

momondo does allow users to show only those flights to Washington, D.C. from Louisville which offer a flexible booking policy as well as other useful filters and features.

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?

Yes momondo offers price alerts on flights to Washington, D.C. from Louisville. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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

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Cheap flights from Louisville to Washington, D.C. from $94

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 10/22. 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

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United Airlines flights from Louisville to Washington, D.C.

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

Delta flights from Louisville to Washington, D.C.

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

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

See travel insights to Washington, D.C. from

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

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 typical price of a round-trip flight between Louisville and Washington, D.C.?

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

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

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

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

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

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

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

There are 4 cabin classes available to choose from on Louisville Intl to Washington, D.C. 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. flights?

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

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

As of August 2025, prices for Louisville to Washington, D.C. flights are approximately 4% more expensive when compared to flights at the same time last year.

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

Southwest, Spirit Airlines, and Delta are the most popular carriers operating from Louisville Intl to Washington, D.C.

What airlines fly to Washington, D.C.?

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

The number of flights available between Louisville and Washington, D.C. is 13 per day as of August 2025. The most frequent departure time is 9:00AM, with 53% of daily flights leaving at noon.

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

As of August 2025, there are 92 flights per week flying from Louisville to Washington, D.C.. The most common day of the week flights depart is Mon, with 16% of flights taking off on this day.

When to book flights from Louisville to Washington, D.C.

Cheap Louisville to Washington, D.C. (SDF to WAS) flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Washington, D.C.

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

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

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

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

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

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

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

Best airlines flying from Louisville to Washington, D.C.

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

United Airlines Flights From Louisville to Washington, D.C.

American Airlines Flights From Louisville to Washington, D.C.

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. 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 the United States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.