How popular is this Washington, D.C. to Louisville flight route?

This flight path from Washington, D.C. to Louisville Intl was viewed by 8 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

How long is the flight from Washington, D.C. to Louisville?

Departing from Washington, D.C. to Louisville will take you 1h 55m. The distance between Washington, D.C. and Louisville is about 450 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

According to our current data, American Airlines ($189), United Airlines ($189), and Delta ($198) offers the cheapest pricing from Washington, D.C. to Louisville. You may be able to fly from Washington, D.C. to Louisville for 39% less than the average price by searching for these airlines.

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

One-way options have recently been found by users for as low as $85 on Allegiant Air. Other airlines that offer cheap prices include Spirit Airlines from $98 and Southwest from $99 one-way.

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.

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).

What are the most popular routes from Washington, D.C. to Louisville?

The most popular flight routes from Washington, D.C. to Louisville are Washington, D.C. Dulles Intl - Louisville Intl, Washington, D.C. Reagan-National - Louisville Intl and Baltimore/Washington - Louisville Intl.

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

While on average a flight from Washington, D.C. to Louisville is generally $235, our data shows the cheapest flight currently is $88. When looking at the most popular route, (Washington, D.C. Dulles Intl - Louisville Intl), you can expect to pay $189 for that flight.

What are the most popular airlines that fly from Washington, D.C. to Louisville?

Consider American Airlines, Delta or United Airlines when booking your flight. These represent the most popular airlines when flying from Washington, D.C. to Louisville.

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

Users have found that leaving on a Friday can be a cost-effective option. It’s possible to save up to 37% on your flight compared to booking on days when demand is much higher.

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

To save on the cost of your flight from Washington, D.C. to Louisville, book at least 58 days before your planned departure. Booking around this time can save you about 56% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $268 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $460.

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

Due to multiple factors, expect to potentially pay more when booking in April. For low rates, January can be a great choice for travel to Louisville. Flights to Louisville from Washington, D.C. in January are about $313 on average during January, but can be found for as low as $191.

What airport do you fly into for flights to Louisville from Washington, D.C.?

Louisville Intl (SDF) is the airport you will fly into if you book a flight from Washington, D.C. to Louisville. You should not have trouble finding flights to Louisville Intl from Washington, D.C.; the airport handles an average of 10 inbound flights from Washington, D.C. per day. You should also have plenty of airline options to choose from since 4 airlines have flights to the Louisville airport from Washington, D.C.. It is only a 5.3 mi journey from Louisville Intl (SDF) to Louisville’s city center.

Can I find deals for flights from Washington, D.C. to Louisville that include hotel bookings?

Yes. In addition to deals on Washington, D.C. to Louisville flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Washington, D.C. to Louisville?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Louisville.

Can I find deals for business class flights from Washington, D.C. to Louisville?

Yes. Cheapflights offers flight deals from Washington, D.C. 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.

$85+ Flights from Washington, D.C. to Louisville

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Find cheap flights from Washington, D.C. to Louisville with Cheapflights

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”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

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Cheapflights Tip: The best prices from Washington, D.C. to Louisville Intl are usually found in January or July, booked 90 days in advance, depart on a Saturday or Wednesday and return on a Friday

Cheap flight deals from Washington, D.C. to Louisville

Round-trip from	$189 (American Airlines)
One-way from	$85 (Mytrip)
Popular in	April
Cheapest in	January
Average price	$300
Good round-trip deal	$224 or less
Good one-way deal	$123 or less

From Washington, D.C. (WAS) to Louisville Intl

Search Deals

One-way flight from Washington, D.C. (WAS) to Louisville Intl

Search Deals

Highest demand for flights based on searches. 7% potential increase in price ($25 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).

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Average for round-trip flights in September 2025

Search Deals

Price to beat on a round-trip flight from Washington, D.C. (WAS) to Louisville Intl.

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Price to beat on a one-way flight from Washington, D.C. (WAS) to Louisville Intl.

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Find flight deals from Washington, D.C. to Louisville

Cheapest flights from Washington, D.C. to Louisville
Explore the most affordable flight options available from Washington, D.C. to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 3, 2025.

Sat 10/258:32 amDCA - SDF

Nonstop2h 11mAmerican Airlines

Tue 10/2811:13 amSDF - DCA

Nonstop1h 42mAmerican Airlines

Deal found 9/1

$189

Tue 9/301:05 pmIAD - SDF

Nonstop1h 46mUnited Airlines

Tue 10/72:03 pmSDF - IAD

Nonstop1h 42mUnited Airlines

Deal found 9/2

$189

Thu 11/2012:50 pmIAD - SDF

Nonstop1h 55mUnited Airlines

Sat 11/222:35 pmSDF - IAD

Nonstop1h 36mUnited Airlines

Deal found 8/31

$194

Fri 10/244:31 pmBWI - SDF

1 stop6h 16mSpirit Airlines

Mon 10/277:49 amSDF - BWI

1 stop5h 25mSpirit Airlines

Deal found 9/1

$196

Wed 9/248:29 amDCA - SDF

Nonstop2h 12mAmerican Airlines

Mon 9/297:35 pmSDF - DCA

Nonstop1h 44mAmerican Airlines

Deal found 9/1

$203

Fri 10/179:28 pmIAD - SDF

1 stop25h 19mMultiple Airlines

Sat 11/17:49 amSDF - IAD

1 stop12h 02mMultiple Airlines

Deal found 9/2

$203

Sat 10/2511:00 amBWI - SDF

Nonstop1h 50mSouthwest

Tue 10/285:30 amSDF - BWI

Nonstop1h 35mSouthwest

Deal found 9/1

$204

Sat 10/252:45 pmDCA - SDF

1 stop7h 00mSouthwest

Tue 10/286:25 amSDF - DCA

1 stop3h 35mSouthwest

Deal found 9/2

$204

Tue 9/305:20 pmBWI - SDF

1 stop5h 10mUnited Airlines

Tue 10/710:55 amSDF - BWI

1 stop6h 31mUnited Airlines

Deal found 9/2

$207

Sat 9/208:29 amDCA - SDF

Nonstop2h 12mAmerican Airlines

Tue 9/237:35 pmSDF - DCA

Nonstop1h 44mAmerican Airlines

Deal found 8/31

$208

Sun 11/237:59 amDCA - SDF

1 stop6h 05mDelta

Wed 12/32:29 pmSDF - DCA

1 stop4h 30mDelta

Deal found 9/2

$209

Sat 10/256:05 amIAD - SDF

1 stop3h 45mDelta

Tue 10/288:17 amSDF - IAD

1 stop6h 21mDelta

Deal found 9/2

$209

Best flights from Washington, D.C. to Louisville
Discover carefully curated flight deals from Washington, D.C. to Louisville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 3, 2025.

Sat 11/82:54 pmDCA - SDF

Nonstop2h 01mAmerican Airlines

Tue 11/116:01 amSDF - DCA

Nonstop1h 44mAmerican Airlines

Deal found 9/1

$189

Thu 11/2012:50 pmIAD - SDF

Nonstop1h 55mUnited Airlines

Sun 11/239:55 amSDF - IAD

Nonstop1h 38mUnited Airlines

Deal found 8/31

$189

Fri 10/244:31 pmBWI - SDF

1 stop6h 16mSpirit Airlines

Mon 10/277:49 amSDF - BWI

1 stop5h 25mSpirit Airlines

Deal found 9/1

$196

Fri 10/179:28 pmIAD - SDF

1 stop25h 19mMultiple Airlines

Sat 11/17:49 amSDF - IAD

1 stop12h 02mMultiple Airlines

Deal found 9/2

$203

Sat 10/255:45 pmBWI - SDF

Nonstop1h 45mSouthwest

Wed 10/295:30 amSDF - BWI

Nonstop1h 35mSouthwest

Deal found 9/2

$204

Wed 11/56:05 amIAD - SDF

1 stop3h 45mDelta

Sat 11/85:58 pmSDF - IAD

1 stop5h 22mDelta

Deal found 9/2

$209

Fri 12/127:45 pmDCA - SDF

Nonstop1h 53mAmerican Airlines

Sun 1/117:45 pmSDF - DCA

Nonstop1h 45mAmerican Airlines

Deal found 9/2

$189

Tue 9/301:05 pmIAD - SDF

Nonstop1h 46mUnited Airlines

Tue 10/72:03 pmSDF - IAD

Nonstop1h 42mUnited Airlines

Deal found 9/2

$189

Sat 10/254:20 pmBWI - SDF

1 stop6h 27mSpirit Airlines

Mon 10/277:49 amSDF - BWI

1 stop5h 25mSpirit Airlines

Deal found 9/1

$196

Tue 10/74:20 pmBWI - SDF

Nonstop1h 45mSouthwest

Mon 10/135:40 amSDF - BWI

Nonstop1h 35mSouthwest

Deal found 9/1

$204

Sat 10/258:32 amDCA - SDF

Nonstop2h 11mAmerican Airlines

Tue 10/2811:13 amSDF - DCA

Nonstop1h 42mAmerican Airlines

Deal found 9/1

$189

Sat 11/85:10 pmIAD - SDF

1 stop4h 05mDelta

Tue 11/113:09 pmSDF - IAD

1 stop4h 18mDelta

Deal found 9/2

$209

Last-minute flights from Washington, D.C. to Louisville
Discover last-minute flight deals from Washington, D.C. to Louisville. Data last updated September 3, 2025 and is based on user searches.

Sat 9/208:29 amDCA - SDF

Nonstop2h 12mAmerican Airlines

Tue 9/237:35 pmSDF - DCA

Nonstop1h 44mAmerican Airlines

Deal found 8/31

$208

Wed 9/248:29 amDCA - SDF

Nonstop2h 12mAmerican Airlines

Mon 9/297:35 pmSDF - DCA

Nonstop1h 44mAmerican Airlines

Deal found 9/1

$203

Thu 9/256:00 amDCA - SDF

1 stop3h 46mDelta

Sat 9/275:56 pmSDF - DCA

1 stop5h 46mDelta

Deal found 9/2

$209

Thu 9/259:38 amBWI - SDF

1 stop12h 26mSpirit Airlines

Mon 9/298:23 amSDF - BWI

1 stop8h 28mSpirit Airlines

Deal found 9/1

$210

Tue 9/301:05 pmIAD - SDF

Nonstop1h 46mUnited Airlines

Tue 10/72:03 pmSDF - IAD

Nonstop1h 42mUnited Airlines

Deal found 9/2

$189

Tue 9/305:20 pmBWI - SDF

1 stop5h 10mUnited Airlines

Tue 10/710:55 amSDF - BWI

1 stop6h 31mUnited Airlines

Deal found 9/2

$207

Fri 10/179:28 pmIAD - SDF

1 stop25h 19mMultiple Airlines

Sat 11/17:49 amSDF - IAD

1 stop12h 02mMultiple Airlines

Deal found 9/2

$203

Fri 10/244:31 pmBWI - SDF

1 stop6h 16mSpirit Airlines

Mon 10/277:49 amSDF - BWI

1 stop5h 25mSpirit Airlines

Deal found 9/1

$196

Sat 10/2511:30 amDCA - SDF

Nonstop1h 50mAmerican Airlines

Tue 10/286:48 pmSDF - DCA

Nonstop1h 37mAmerican Airlines

Deal found 9/2

$189

Sat 10/2511:00 amBWI - SDF

Nonstop1h 50mSouthwest

Tue 10/285:30 amSDF - BWI

Nonstop1h 35mSouthwest

Deal found 9/1

$204

Sat 10/252:45 pmDCA - SDF

1 stop7h 00mSouthwest

Tue 10/286:25 amSDF - DCA

1 stop3h 35mSouthwest

Deal found 9/2

$204

Sat 10/256:05 amIAD - SDF

1 stop3h 45mDelta

Tue 10/288:17 amSDF - IAD

1 stop6h 21mDelta

Deal found 9/2

$209

One-way flights from Washington, D.C. to Louisville
Search for one-way flight options from Washington, D.C. to Louisville. Find affordable one-way fares based on user searches. Data last updated September 3, 2025.

Fri 10/318:57 pmIAD - SDF

1 stop12h 17mAllegiant Air

Deal found 9/2

$85

Mon 9/226:50 amBWI - SDF

1 stop15h 14mSpirit Airlines

Deal found 9/2

$95

Sat 9/274:00 pmBWI - SDF

1 stop6h 04mSpirit Airlines

Deal found 9/1

$96

Sat 11/14:20 pmBWI - SDF

1 stop6h 27mSpirit Airlines

Deal found 9/2

$98

Wed 10/16:10 pmBWI - SDF

Nonstop1h 45mSouthwest

Deal found 9/1

$99

Thu 11/205:35 pmBWI - SDF

1 stop15h 13mMultiple Airlines

Deal found 9/1

$100

Thu 12/45:35 pmBWI - SDF

1 stop16h 24mMultiple Airlines

Deal found 9/1

$102

Tue 9/305:20 pmBWI - SDF

1 stop5h 10mUnited Airlines

Deal found 9/1

$104

Thu 10/26:00 amDCA - SDF

1 stop6h 05mSouthwest

Deal found 9/2

$105

Thu 12/119:00 pmBWI - SDF

Nonstop1h 50mSouthwest

Deal found 9/1

$106

Sun 9/218:52 pmBWI - SDF

1 stop12h 27mSpirit Airlines

Deal found 9/1

$107

Fri 10/244:31 pmBWI - SDF

1 stop6h 16mSpirit Airlines

Deal found 9/2

$108

Cheapflights 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

Washington, D.C.Louisville

DCA - SDF

DCASDF

Washington, D.C. Reagan-National

Sat 11/8

2:54 pm-4:55 pm

Nonstop2h 01m

Louisville Intl

Tue 11/11

6:01 am-7:45 am

Nonstop1h 44m

$189

Washington, D.C.Louisville

IAD - SDF

IADSDF

Washington, D.C. Dulles Intl

Thu 11/20

12:50 pm-2:45 pm

Nonstop1h 55m

Louisville Intl

Sun 11/23

9:55 am-11:33 am

Nonstop1h 38m

$189

Washington, D.C.Louisville

DCA - SDF

DCASDF

Washington, D.C. Reagan-National

Fri 12/12

7:45 pm-9:38 pm

Nonstop1h 53m

Louisville Intl

Sun 1/11

7:45 pm-9:30 pm

Nonstop1h 45m

$189

Washington, D.C.Louisville

IAD - SDF

IADSDF

Washington, D.C. Dulles Intl

Tue 9/30

1:05 pm-2:51 pm

Nonstop1h 46m

Louisville Intl

Tue 10/7

2:03 pm-3:45 pm

Nonstop1h 42m

$189

Washington, D.C.Louisville

DCA - SDF

DCASDF

Washington, D.C. Reagan-National

Sat 10/25

8:32 am-10:43 am

Nonstop2h 11m

Louisville Intl

Tue 10/28

11:13 am-12:55 pm

Nonstop1h 42m

$189

Washington, D.C.Louisville

DCA - SDF

DCASDF

Washington, D.C. Reagan-National

Sat 10/25

11:30 am-1:20 pm

Nonstop1h 50m

Louisville Intl

Wed 10/29

6:05 am-7:45 am

Nonstop1h 40m

$189

Washington, D.C.Louisville

DCA - SDF

DCASDF

Washington, D.C. Reagan-National

Tue 9/30

8:29 am-10:41 am

Nonstop2h 12m

Louisville Intl

Tue 10/7

6:23 pm-8:00 pm

Nonstop1h 37m

$189

Washington, D.C.Louisville

DCA - SDF

DCASDF

Washington, D.C. Reagan-National

Wed 11/5

8:31 am-10:39 am

Nonstop2h 08m

Louisville Intl

Sat 11/8

5:25 pm-7:15 pm

Nonstop1h 50m

$189

Washington, D.C.Louisville

DCA - SDF

DCASDF

Washington, D.C. Reagan-National

Thu 12/11

8:28 am-10:40 am

Nonstop2h 12m

Louisville Intl

Sun 1/11

7:45 pm-9:30 pm

Nonstop1h 45m

$189

Washington, D.C.Louisville

IAD - SDF

IADSDF

Washington, D.C. Dulles Intl

Thu 11/20

12:50 pm-2:45 pm

Nonstop1h 55m

Louisville Intl

Sat 11/22

2:35 pm-4:11 pm

Nonstop1h 36m

$194

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/1

Showing 1-10 of 51 results

...

Best time to book a flight from Washington, D.C. to Louisville

Have a flexible travel schedule? Discover the best time to fly to Louisville from Washington, D.C. 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.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. to Louisville

How far ahead should I book a flight from Washington, D.C. to Louisville?

The best time to book flights from Washington, D.C. to Louisville is 90 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. to Louisville (average of $299). Flying from Washington, D.C. 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 WAS to SDF?

Unlike at noon, when flights are generally more expensive, you can save up to 17% on flights from Washington, D.C. to Louisville by exploring options for tickets in the evening.

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

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

Weekly flight availability from Washington, D.C. to Louisville

The most flights from WAS to SDF are scheduled on a Monday (11 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (9 on average).

Reviews of airlines servicing Louisville

Read through reviews of airlines operating flights from Washington, D.C. to Louisville, such as Southwest, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.0

Very good

4,238 reviews

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Southwest

8.0

Very good

4,238 reviews

Southwest

8.0

Very good

4,238 reviews

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Delta

8.0

Very good

7,973 reviews

Southwest

8.0

Very good

4,238 reviews

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

United Airlines

7.4

Good

8,937 reviews

Southwest

8.0

Very good

4,238 reviews

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

American Airlines

7.2

Good

10,000 reviews

Southwest

8.0

Very good

4,238 reviews

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

What airport do you fly into for flights to Louisville from Washington, D.C.?
Louisville Intl (SDF) is the airport you will fly into if you book a flight from Washington, D.C. to Louisville. You should not have trouble finding flights to Louisville Intl from Washington, D.C.; the airport handles an average of 10 inbound flights from Washington, D.C. per day. You should also have plenty of airline options to choose from since 4 airlines have flights to the Louisville airport from Washington, D.C.. It is only a 5.3 mi journey from Louisville Intl (SDF) to Louisville’s city center.
How popular is this Washington, D.C. to Louisville flight route?
This flight path from Washington, D.C. to Louisville Intl was viewed by 8 users in the past month. Keep an eye out for changes in search interest prior to high and low season.
How long is the flight from Washington, D.C. to Louisville?
Departing from Washington, D.C. to Louisville will take you 1h 55m. The distance between Washington, D.C. and Louisville is about 450 mi. Both multi-stop and nonstop flights can be found to your destination and back.
What are the cheapest airlines flying from Washington, D.C. to Louisville round-trip?
According to our current data, American Airlines ($189), United Airlines ($189), and Delta ($198) offers the cheapest pricing from Washington, D.C. to Louisville. You may be able to fly from Washington, D.C. to Louisville for 39% less than the average price by searching for these airlines.
What are the cheapest airlines to fly from Washington, D.C. to Louisville one-way?
One-way options have recently been found by users for as low as $85 on Allegiant Air. Other airlines that offer cheap prices include Spirit Airlines from $98 and Southwest from $99 one-way.
What are the most popular routes from Washington, D.C. to Louisville?
The most popular flight routes from Washington, D.C. to Louisville are Washington, D.C. Dulles Intl - Louisville Intl, Washington, D.C. Reagan-National - Louisville Intl and Baltimore/Washington - Louisville Intl.
What are the cheapest flights from Washington, D.C. to Louisville?
While on average a flight from Washington, D.C. to Louisville is generally $235, our data shows the cheapest flight currently is $88. When looking at the most popular route, (Washington, D.C. Dulles Intl - Louisville Intl), you can expect to pay $189 for that flight.
Can I find deals for flights from Washington, D.C. to Louisville that include hotel bookings?
Yes. In addition to deals on Washington, D.C. to Louisville flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Washington, D.C. to Louisville?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Louisville.
Can I find deals for business class flights from Washington, D.C. to Louisville?
Yes. Cheapflights offers flight deals from Washington, D.C. 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. to Louisville?
Currently, January is the cheapest month in which you can book a flight from Washington, D.C. to Louisville (average of $299). Flying from Washington, D.C. 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

Shepherdsville

Jeffersonville

Elizabethtown

Corydon

Bardstown

Browse thousands of different options on Cheapflights for your next trip

Top 4 airlines flying from Washington, D.C. to Louisville

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$189	Average$300	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$189	Average$403	FlexibilityNo cancel fee	On-time71%
Southwest	Cheapest$196	Average$310	FlexibilityNo cancel fee	On-time63%
Delta	Cheapest$198	Average$307	FlexibilityNo cancel fee	On-timeN/A

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$85+ Cheap flights from Washington, D.C. (WAS) 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 10/31. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Washington, D.C. to Louisville with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Washington, D.C. to Louisville Intl are usually found in January or July, booked 90 days in advance, depart on a Saturday or Wednesday and return on a Friday

Cheap flight deals from Washington, D.C. to Louisville

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Washington, D.C. to Louisville

Cheapest flights from Washington, D.C. to LouisvilleExplore the most affordable flight options available from Washington, D.C. to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 3, 2025.

Explore the most affordable flight options available from Washington, D.C. to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 3, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Washington, D.C. to Louisville

Have a flexible travel schedule? Discover the best time to fly to Louisville from Washington, D.C. with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. to Louisville

How far ahead should I book a flight from Washington, D.C. to Louisville?

Use this chart to determine the optimal time to book a round-trip flight from Washington, D.C. to Louisville. Price data was last updated on August 29, 2025.

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

What is the cheapest time of day to fly from WAS to SDF?

Find hourly flight availability from Washington, D.C. 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 September 3, 2025.

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

Use this chart to determine the cheapest time to fly round-trip from Washington, D.C. to Louisville. Price data was last updated on August 31, 2025.

Weekly flight availability from Washington, D.C. to Louisville

Reviews of airlines servicing Louisville

Read through reviews of airlines operating flights from Washington, D.C. to Louisville, such as Southwest, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. 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.?

How popular is this Washington, D.C. to Louisville flight route?

How long is the flight from Washington, D.C. to Louisville?

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

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

What are the most popular routes from Washington, D.C. to Louisville?

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

Can I find deals for flights from Washington, D.C. to Louisville that include hotel bookings?

How can I find direct flights from Washington, D.C. to Louisville?

Can I find deals for business class flights from Washington, D.C. to Louisville?

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

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Alternative routes for Washington, D.C. to Louisville

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Top 4 airlines flying from Washington, D.C. to Louisville

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Cheapest flights from Washington, D.C. to Louisville
Explore the most affordable flight options available from Washington, D.C. to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 3, 2025.