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

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

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

As of September 2025, there are 82 flights per week flying from Washington, D.C. to Louisville. The most common day of the week flights depart is Mon, with 17% of flights taking off on this day.

How long does it take to fly to Louisville?

If you’re flying from a popular airport in Washington, D.C., such as Washington, D.C. or Baltimore, and flying into Louisville, then you can expect flight times to average 1h 33m and 1h 35m, respectively.

What airlines fly to Louisville?

American Airlines, United Airlines and Delta are the top three most popular airlines that fly to Louisville from Washington, D.C. according to our data. American Airlines is the first choice among our users, with 33% of people opting to fly with this airline when traveling to Louisville. Keep in mind that there are 5 different airlines that fly to Louisville on a routine basis, so you have a few additional options to choose from.

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

As of September 2025, 11 flights take off from Washington, D.C. and land in Louisville each day. The most common flight departure time for this route is 7:00PM, with 47% of daily flights taking off in the evening.

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

Prices for flights from Washington, D.C. to Louisville Intl Airport were last updated today.

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

The number of operators available for flights from Washington, D.C. to Louisville Intl Airport is 4 as of September 2025.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to Louisville Intl Airport.

What documentation or ID do you need to fly to Louisville Intl Airport?

The necessary travel and health documents for your Louisville 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.

$68 Cheap Flights from Washington, D.C. to Louisville in 2025/26

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

Prices are currently low for flights on this route. Typical prices usually range from $253 to $436. The lowest price recently found on this route was $159.

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

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

10:45 am - 3:05 pmBWI-SDF

4h 20m1 stop

9:22 am - 1:51 pmSDF-BWI

4h 29m1 stop

$159American Airlines

Find Deal

Sat, Nov 1 - Tue, Nov 4

7:45 pm - 12:01 amBWI-SDF

4h 16m1 stop

5:58 pm - 12:41 amSDF-BWI

6h 43m1 stop

$177Delta

Find Deal

Fri, Oct 24 - Tue, Oct 28

4:20 pm - 10:47 pmBWI-SDF

6h 27m1 stop

5:31 pm - 11:32 pmSDF-BWI

6h 01m1 stop

$185Spirit Airlines

Find Deal

Sat, Oct 25 - Wed, Oct 29

12:50 pm - 2:45 pmIAD-SDF

1h 55mnonstop

2:35 pm - 4:11 pmSDF-IAD

1h 36mnonstop

$194United Airlines

Find Deal

Wed, Nov 12 - Mon, Nov 17

9:41 pm - 10:47 pmBWI-SDF

25h 06m1 stop

6:00 am - 7:30 pmSDF-BWI

13h 30m1 stop

$194Spirit Airlines

Find Deal

Fri, Oct 31 - Fri, Nov 7

2:45 pm - 9:45 pmDCA-SDF

7h 00m1 stop

6:25 am - 10:00 amSDF-DCA

3h 35m1 stop

$198Southwest

Find Deal

Sat, Oct 25 - Wed, Oct 29

7:00 pm - 8:48 pmIAD-SDF

1h 48mnonstop

9:55 am - 11:34 amSDF-IAD

1h 39mnonstop

$199United Airlines

Find Deal

Fri, Oct 3 - Mon, Oct 6

7:30 am - 4:20 pmDCA-SDF

8h 50m2 stops

3:10 pm - 10:50 pmSDF-DCA

7h 40m1 stop

$202Southwest

Find Deal

Tue, Oct 14 - Wed, Oct 15

8:21 pm - 9:01 amBWI-SDF

12h 40m1 stop

6:58 pm - 11:54 amSDF-BWI

16h 56m1 stop

$218Multiple Airlines

Find Deal

Thu, Oct 23 - Sun, Oct 26

3:01 pm - 11:45 pmBWI-SDF

8h 44m1 stop

10:55 am - 7:17 pmSDF-BWI

8h 22m1 stop

$222Multiple Airlines

Find Deal

Thu, Dec 11 - Sun, Dec 14

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

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

Spirit Airlines

Oct 25

BWI4:20 pmBaltimore/Washington

6h 27m

1 stop

SDF10:47 pmLouisville Intl

Oct 29

SDF5:31 pmLouisville Intl

6h 01m

1 stop

BWI11:32 pmBaltimore/Washington

$185

Find similar

Spirit Airlines

Oct 31

BWI9:41 pmBaltimore/Washington

25h 06m

1 stop

SDF10:47 pmLouisville Intl

Nov 7

SDF6:00 amLouisville Intl

13h 30m

1 stop

BWI7:30 pmBaltimore/Washington

$194

Find similar

Spirit Airlines

Nov 12

BWI3:31 pmBaltimore/Washington

8h 14m

1 stop

SDF11:45 pmLouisville Intl

Nov 14

SDF6:00 amLouisville Intl

13h 30m

1 stop

BWI7:30 pmBaltimore/Washington

$201

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

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

American Airlines

Nov 1

BWI10:45 amBaltimore/Washington

4h 20m

1 stop

SDF3:05 pmLouisville Intl

Nov 4

SDF9:22 amLouisville Intl

4h 29m

1 stop

BWI1:51 pmBaltimore/Washington

$159

Find similar

American Airlines

Dec 11

DCA2:33 pmWashington, D.C. Reagan-National

1h 52m

SDF4:25 pmLouisville Intl

Dec 14

SDF6:08 amLouisville Intl

1h 41m

DCA7:49 amWashington, D.C. Reagan-National

$218

Find similar

American Airlines

Nov 7

DCA7:44 pmWashington, D.C. Reagan-National

1h 45m

SDF9:29 pmLouisville Intl

Nov 11

SDF6:01 amLouisville Intl

1h 44m

DCA7:45 amWashington, D.C. Reagan-National

$219

Find similar

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

BaltimoreLouisville

BWI - SDF

BWISDF

Baltimore/Washington

Sat 11/1

10:45 am-3:05 pm

1 stop4h 20m

Louisville Intl

Tue 11/4

9:22 am-1:51 pm

1 stop4h 29m

$159

BaltimoreLouisville

BWI - SDF

BWISDF

Baltimore/Washington

Fri 10/24

7:45 pm-12:01 am

1 stop4h 16m

Louisville Intl

Tue 10/28

5:58 pm-12:41 am

1 stop6h 43m

$177

BaltimoreLouisville

BWI - SDF

BWISDF

Baltimore/Washington

Sat 10/25

4:20 pm-10:47 pm

1 stop6h 27m

Louisville Intl

Wed 10/29

5:31 pm-11:32 pm

1 stop6h 01m

$185

Washington, D.C.Louisville

IAD - SDF

IADSDF

Washington, D.C. Dulles Intl

Wed 11/12

12:50 pm-2:45 pm

Nonstop1h 55m

Louisville Intl

Mon 11/17

2:35 pm-4:11 pm

Nonstop1h 36m

$194

BaltimoreLouisville

BWI - SDF

BWISDF

Baltimore/Washington

Fri 10/31

9:41 pm-10:47 pm

1 stop25h 06m

Louisville Intl

Fri 11/7

6:00 am-7:30 pm

1 stop13h 30m

$194

Washington, D.C.Louisville

DCA - SDF

DCASDF

Washington, D.C. Reagan-National

Sat 10/25

2:45 pm-9:45 pm

1 stop7h 00m

Louisville Intl

Wed 10/29

6:25 am-10:00 am

1 stop3h 35m

$198

Washington, D.C.Louisville

IAD - SDF

IADSDF

Washington, D.C. Dulles Intl

Fri 10/3

7:00 pm-8:48 pm

Nonstop1h 48m

Louisville Intl

Mon 10/6

9:55 am-11:34 am

Nonstop1h 39m

$199

Washington, D.C.Louisville

DCA - SDF

DCASDF

Washington, D.C. Reagan-National

Tue 10/14

7:30 am-4:20 pm

2 stops8h 50m

Louisville Intl

Wed 10/15

3:10 pm-10:50 pm

1 stop7h 40m

$202

BaltimoreLouisville

BWI - SDF

BWISDF

Baltimore/Washington

Thu 10/23

8:21 pm-9:01 am

1 stop12h 40m

Louisville Intl

Sun 10/26

6:58 pm-11:54 am

1 stop16h 56m

$218

BaltimoreLouisville

BWI - SDF

BWISDF

Baltimore/Washington

Thu 12/11

3:01 pm-11:45 pm

1 stop8h 44m

Louisville Intl

Sun 12/14

10:55 am-7:17 pm

1 stop8h 22m

$222

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 Washington, D.C. to Louisville

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 Washington, D.C. and Louisville?

What is the cheapest month to fly to Louisville?

If you are unable to visit Louisville during the month of January, then departing from Washington, D.C. during the month August is also very affordable. Most momondo users find prices during this month for around $259.

What is the cheapest day to depart on your flight to Louisville?

On average, the least expensive day to fly to Louisville from Washington, D.C. is on a Saturday. momondo users have found tickets for Saturday departures for as low as $260. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Washington, D.C. to Louisville on a Sunday will generally be more expensive and average around $382. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Louisville?

Our data shows that the cheapest Washington, D.C. to Louisville flights are usually those with departure times in the evening. Our users have found flights to Louisville in the evening for as low as $296. At noon is when there is more demand to fly to Louisville, so prices are often more expensive at around $351 per ticket.

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

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

How far in advance should I book a flight to Louisville?

You are more likely to see cheaper flights to Louisville from Washington, D.C. when booking weeks ahead of your departure date. In general, you can expect to find flights to Louisville for around $334 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Louisville from Washington, D.C. for as low as $212 on momondo.

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

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

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

As of September 2025, prices for Washington, D.C. to Louisville flights are approximately 29% more expensive when compared to flights at the same time last year.

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

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

Estimated round-trip price

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

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

Best Price Found	$165
Fastest flight time	1h 39m
Direct flights	Every day
Airports in Louisville	1 airport

The best one-way flight to Louisville from Washington, D.C. in the past 72 hours is $165. The best round-trip flight deal from Washington, D.C. to Louisville found on momondo in the last 72 hours is $254.

The fastest flight from Washington, D.C. to Louisville takes 1h 39m

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

There is 1 airport near Louisville: Louisville Intl (SDF)

Search flight deals

How far is Washington, D.C. to Louisville Intl by plane?
The straight-line distance from Washington, D.C. to Louisville Intl is 472.6 mi. In terms of flight time, this usually takes a little over 1h 45m.
When did momondo last update prices for flights from Washington, D.C. to Louisville Intl Airport?
Prices for flights from Washington, D.C. to Louisville Intl Airport were last updated today.
How many operators does momondo search for flights from Washington, D.C. to Louisville Intl Airport?
The number of operators available for flights from Washington, D.C. to Louisville Intl Airport is 4 as of September 2025.
How old do you have to be to fly from Washington, D.C. to Louisville Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to Louisville Intl Airport.
What documentation or ID do you need to fly to Louisville Intl Airport?
The necessary travel and health documents for your Louisville 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 Washington, D.C. to Louisville?
momondo data reveals that the most frequently booked plane model on the route from Washington, D.C. to Louisville is Embraer 175 (Enhanced Winglets), representing 21.71% of all bookings. The subsequent popular models are Embraer 175 at 18.96%, Canadair (Bombardier) Regional Jet 700 at 18.96%, and Boeing 737-700 Passenger/BBJ1 (winglets) at 11.26%.
What is the most popular airline from Washington, D.C. to Louisville?
Based on momondo bookings for flights between Washington, D.C. and Louisville, the leading airline is American Airlines, making up 44% of the total bookings. Other popular airlines include United Airlines with 40%, Southwest with 13%, and Delta with 3%.

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

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

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $186	Free Cancellation	Rating 7.9 7,961 reviews	Search Delta flights
United Airlines	PriceFrom $189	Free Cancellation	Rating 7.4 8,926 reviews	Search United Airlines flights
American Airlines	PriceFrom $189	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Southwest	PriceFrom $196	Free Cancellation	Rating 8.0 4,242 reviews	Search Southwest flights

United Airlines Flights From Washington, D.C. to Louisville
United Airlines is one of the most popular airlines flying from Washington, D.C. to Louisville, operating 18 flights/week on average for this route. A good United Airlines flight deal for Washington, D.C. to Louisville starts from $189 round-trip, up to an average price of $298. Our users have rated United Airlines at 7.4/10.
American Airlines Flights From Washington, D.C. to Louisville
Across 10,000 American Airlines reviews on momondo, the average score is 7.2/10. American Airlines flies from Washington, D.C. to Louisville about 20 times each week, with ticket deals ranging from $189 to $398. Price data is based on momondo searches in the last 72 hours.

French Lick

Elizabethtown

West Baden Springs

Bardstown

Jeffersonville

Shepherdsville

New Albany

Corydon

Elizabeth

Charlestown

Springfield

Georgetown

Brandenburg

Why use momondo?

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

It is quick and easy to find Washington, D.C. to Louisville flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Louisville that suits you.

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

All flight searches from Washington, D.C. to Louisville on momondo can be filtered to show those which offer flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Louisville from Washington, D.C.. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are simply researching potential flights to Louisville, momondo offers a useful price alert feature which will track prices for flights to Louisville from Washington, D.C. and alert you when they change.

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Cheap flights from Washington, D.C. to Louisville from $68

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Louisville departing on 10/20. 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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Spirit Airlines flights from Washington, D.C. to Louisville

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

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

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 Washington, D.C. and Louisville?

What is the cheapest month to fly to Louisville?

If you are unable to visit Louisville during the month of January, then departing from Washington, D.C. during the month August is also very affordable. Most momondo users find prices during this month for around $259.

What is the cheapest day to depart on your flight to Louisville?

What is the cheapest time of day to depart on your flight to Louisville?

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

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

How far in advance should I book a flight to Louisville?

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

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

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

As of September 2025, prices for Washington, D.C. to Louisville flights are approximately 29% more expensive when compared to flights at the same time last year.

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

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

What airlines fly to Louisville?

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

As of September 2025, 11 flights take off from Washington, D.C. and land in Louisville each day. The most common flight departure time for this route is 7:00PM, with 47% of daily flights taking off in the evening.

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

As of September 2025, there are 82 flights per week flying from Washington, D.C. to Louisville. The most common day of the week flights depart is Mon, with 17% of flights taking off on this day.

How long does it take to fly to Louisville?

If you’re flying from a popular airport in Washington, D.C., such as Washington, D.C. or Baltimore, and flying into Louisville, then you can expect flight times to average 1h 33m and 1h 35m, respectively.

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

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

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

Best Price Found

Fastest flight time

Direct flights

Airports in Louisville

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

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

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

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

What documentation or ID do you need to fly to Louisville Intl Airport?

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

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

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

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

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

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

Traveling to a place near Louisville?

Why use momondo?

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

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

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

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

An easier way to manage your Louisville 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

Airports servicing Kentucky