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

Southwest is the most popular carrier operating from Washington, D.C. Reagan-National to Louisville Intl

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

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

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

As of June 2026, there are 2 operators available to choose from for flights from Washington, D.C. Reagan-National Airport to Louisville Intl Airport.

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

The travel and health documents required for your trip to Louisville Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Louisville Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$106 Cheap Flights from Washington, D.C. Reagan-National Airport to Louisville in 2026

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

17 flights are operational weekly from Washington, D.C. Reagan-National Airport to Louisville as of June 2026. The most popular departure day for this route is Mon, with 18% of flights per week taking off on this day.

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

The number of flights available between Washington, D.C. Reagan-National Airport and Louisville is 2 per day as of June 2026. The most frequent departure time is 7:00PM, with 57% of daily flights leaving in the evening.

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

Prices are currently low for flights on this route. Typical prices usually range from $259 to $464. The lowest price recently found on this route was $249.

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Washington, D.C. Reagan-National Airport to Louisville

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

12:59 pm - 2:51 pm

DCA

SDF

1h 52mnonstop

7:33 am - 9:27 am

SDF

DCA

1h 54mnonstop

$249American Airlines

Fri, Aug 7 - Sun, Aug 9

6:05 am - 11:20 am

DCA

SDF

5h 15m

1 stop

7:10 pm - 11:55 pm

SDF

DCA

4h 45m

1 stop

$250Southwest

Wed, Sep 16 - Mon, Sep 21

9:00 am - 2:18 pm

DCA

SDF

5h 18m

1 stop

5:25 pm - 10:59 pm

SDF

DCA

5h 34m

1 stop

$253Delta

Fri, Aug 21 - Mon, Aug 24

7:45 pm - 12:34 am

DCA

SDF

4h 49m

1 stop

1:17 pm - 6:33 pm

SDF

DCA

5h 16m

1 stop

$254Delta

Fri, Aug 14 - Thu, Aug 27

4:00 pm - 9:45 pm

DCA

SDF

5h 45m

1 stop

6:05 pm - 11:20 pm

SDF

DCA

5h 15m

1 stop

$255Southwest

Tue, Jul 28 - Fri, Jul 31

7:45 pm - 9:40 pm

DCA

SDF

1h 55mnonstop

6:48 am - 12:44 pm

SDF

DCA

5h 56m

1 stop

$259American Airlines

Fri, Jul 17 - Tue, Jul 21

1:00 pm - 8:30 pm

DCA

SDF

7h 30m

2 stops

6:40 am - 12:00 pm

SDF

DCA

5h 20m

1 stop

$260Southwest

Tue, Jul 28 - Fri, Jul 31

7:16 am - 9:12 am

DCA

SDF

1h 56mnonstop

2:16 pm - 3:59 pm

SDF

DCA

1h 43mnonstop

$264American Airlines

Mon, Jul 13 - Thu, Jul 30

7:37 pm - 12:26 am

DCA

SDF

4h 49m

1 stop

3:50 pm - 9:49 pm

SDF

DCA

5h 59m

1 stop

$265Delta

Fri, Jul 17 - Sat, Jul 18

3:25 pm - 9:38 pm

DCA

SDF

6h 13m

1 stop

6:37 pm - 8:14 pm

SDF

DCA

1h 37mnonstop

$268American Airlines

Sat, Oct 10 - Sat, Oct 17

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Southwest flights from Washington, D.C. Reagan-National Airport to Louisville

Our best Southwest deals on Washington, D.C. Reagan-National Airport to Louisville flight tickets

Southwest

Sep 16

DCA6:05 amWashington, D.C. Reagan-National

5h 15m

1 stop

SDF11:20 amLouisville Intl

Sep 21

SDF7:10 pmLouisville Intl

4h 45m

1 stop

DCA11:55 pmWashington, D.C. Reagan-National

$250

Southwest

Jul 28

DCA4:00 pmWashington, D.C. Reagan-National

5h 45m

1 stop

SDF9:45 pmLouisville Intl

Jul 31

SDF6:05 pmLouisville Intl

5h 15m

1 stop

DCA11:20 pmWashington, D.C. Reagan-National

$255

Southwest

Jul 28

DCA1:00 pmWashington, D.C. Reagan-National

7h 30m

2 stops

SDF8:30 pmLouisville Intl

Jul 31

SDF6:40 amLouisville Intl

5h 20m

1 stop

DCA12:00 pmWashington, D.C. Reagan-National

$260

Delta flights from Washington, D.C. Reagan-National Airport to Louisville

Our best Delta deals on Washington, D.C. Reagan-National Airport to Louisville flight tickets

Delta

Aug 21

DCA9:00 amWashington, D.C. Reagan-National

5h 18m

1 stop

SDF2:18 pmLouisville Intl

Aug 24

SDF5:25 pmLouisville Intl

5h 34m

1 stop

DCA10:59 pmWashington, D.C. Reagan-National

$253

Delta

Aug 14

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

4h 49m

1 stop

SDF12:34 amLouisville Intl

Aug 27

SDF1:17 pmLouisville Intl

5h 16m

1 stop

DCA6:33 pmWashington, D.C. Reagan-National

$254

Delta

Jul 17

DCA7:37 pmWashington, D.C. Reagan-National

4h 49m

1 stop

SDF12:26 amLouisville Intl

Jul 18

SDF3:50 pmLouisville Intl

5h 59m

1 stop

DCA9:49 pmWashington, D.C. Reagan-National

$265

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Louisville

DCA - SDF

DCASDF

Washington, D.C. Reagan-National

Fri 8/7

12:59 pm-2:51 pm

Nonstop1h 52m

Louisville Intl

Sun 8/9

7:33 am-9:27 am

Nonstop1h 54m

$249

Washington, D.C.Louisville

DCA - SDF

DCASDF

Washington, D.C. Reagan-National

Wed 9/16

6:05 am-11:20 am

1 stop5h 15m

Louisville Intl

Mon 9/21

7:10 pm-11:55 pm

1 stop4h 45m

$250

Washington, D.C.Louisville

DCA - SDF

DCASDF

Washington, D.C. Reagan-National

Fri 8/21

9:00 am-2:18 pm

1 stop5h 18m

Louisville Intl

Mon 8/24

5:25 pm-10:59 pm

1 stop5h 34m

$253

Washington, D.C.Louisville

DCA - SDF

DCASDF

Washington, D.C. Reagan-National

Fri 8/14

7:45 pm-12:34 am

1 stop4h 49m

Louisville Intl

Thu 8/27

1:17 pm-6:33 pm

1 stop5h 16m

$254

Washington, D.C.Louisville

DCA - SDF

DCASDF

Washington, D.C. Reagan-National

Tue 7/28

4:00 pm-9:45 pm

1 stop5h 45m

Louisville Intl

Fri 7/31

6:05 pm-11:20 pm

1 stop5h 15m

$255

Washington, D.C.Louisville

DCA - SDF

DCASDF

Washington, D.C. Reagan-National

Fri 7/17

7:45 pm-9:40 pm

Nonstop1h 55m

Louisville Intl

Tue 7/21

6:48 am-12:44 pm

1 stop5h 56m

$259

Washington, D.C.Louisville

DCA - SDF

DCASDF

Washington, D.C. Reagan-National

Tue 7/28

1:00 pm-8:30 pm

2 stops7h 30m

Louisville Intl

Fri 7/31

6:40 am-12:00 pm

1 stop5h 20m

$260

Quickest round-trip

Washington, D.C.Louisville

DCA - SDF

DCASDF

Washington, D.C. Reagan-National

Mon 7/13

7:16 am-9:12 am

Nonstop1h 56m

Louisville Intl

Thu 7/30

2:16 pm-3:59 pm

Nonstop1h 43m

$264

Washington, D.C.Louisville

DCA - SDF

DCASDF

Washington, D.C. Reagan-National

Fri 7/17

7:37 pm-12:26 am

1 stop4h 49m

Louisville Intl

Sat 7/18

3:50 pm-9:49 pm

1 stop5h 59m

$265

Washington, D.C.Louisville

DCA - SDF

DCASDF

Washington, D.C. Reagan-National

Sat 10/10

3:25 pm-9:38 pm

1 stop6h 13m

Louisville Intl

Sat 10/17

6:37 pm-8:14 pm

Nonstop1h 37m

$268

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. Reagan-National Airport 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. Reagan-National Airport and Louisville?

What is the cheapest month to fly to Louisville?

If you are unable to visit Louisville during the month of August, then departing from Washington, D.C. Reagan-National Airport during the month January is also very affordable. Most momondo users find prices during this month for around $249.

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. Reagan-National Airport is on a Saturday. momondo users have found tickets for Saturday departures for as low as $284. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Washington, D.C. Reagan-National Airport to Louisville on a Monday will generally be more expensive and average around $515. 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. Reagan-National Airport to Louisville flights are usually those with departure times in the afternoon. Our users have found flights to Louisville in the afternoon for as low as $318. At noon is when there is more demand to fly to Louisville, so prices are often more expensive at around $366 per ticket.

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

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

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

You are more likely to see cheaper flights to Louisville from Washington, D.C. Reagan-National Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Louisville for around $339 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. Reagan-National Airport for as low as $251 on momondo.

What cabin class options are available on Washington, D.C. Reagan-National Airport to Louisville flights?

There are 3 cabin classes available to choose from on Washington, D.C. Reagan-National Airport to Louisville 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 Washington, D.C. Reagan-National Airport to Louisville flights?

You could potentially save up to 3% on your flight if you consider stops on a Washington, D.C. Reagan-National Airport to Louisville flight.

How have Washington, D.C. Reagan-National Airport to Louisville flight prices changed over time?

As of June 2026, prices for Washington, D.C. Reagan-National Airport to Louisville flights are approximately 79% more expensive when compared to flights at the same time last year.

When to book flights from Washington, D.C. Reagan-National Airport to Louisville

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

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

Best Price Found	$243
Fastest flight time	1h 52m
Direct flights	Every day
Airports in Louisville	1 airport

The best one-way flight to Louisville from Washington, D.C. Reagan-National Airport in the past 72 hours is $243. The best round-trip flight deal from Washington, D.C. Reagan-National Airport to Louisville found on momondo in the last 72 hours is $283.

The fastest flight from Washington, D.C. Reagan-National Airport to Louisville takes 1h 52m

Direct flights go from Washington, D.C. Reagan-National Airport to Louisville every day.

There is 1 airport in Louisville. From Washington, D.C. Reagan-National Airport there are direct flights to Louisville Intl (SDF).

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Frequently asked questions about flying from Washington, D.C. Reagan-National Airport to Louisville

How far is Washington, D.C. Reagan-National to Louisville Intl by plane?
Louisville Intl is 472.4 mi away from Washington, D.C. Reagan-National. Flights usually cover this in 1h 52m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Washington, D.C. Reagan-National Airport to Louisville Intl Airport?
Prices for flights from Washington, D.C. Reagan-National Airport to Louisville Intl Airport were last updated today.
How many operators does momondo search for flights from Washington, D.C. Reagan-National Airport to Louisville Intl Airport?
As of June 2026, there are 2 operators available to choose from for flights from Washington, D.C. Reagan-National Airport to Louisville Intl Airport.
How old do you have to be to fly from Washington, D.C. Reagan-National Airport to Louisville Intl Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. Reagan-National Airport to Louisville Intl Airport.
What documentation or ID do you need to fly to Louisville Intl Airport?
The travel and health documents required for your trip to Louisville Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Louisville Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Washington, D.C. Reagan-National Airport to Louisville?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Washington, D.C. Reagan-National Airport to Louisville is Embraer 175 (25.13% of total bookings). The next most popular plane models are Embraer 175 (Enhanced Winglets) (19.74%), Canadair (Bombardier) Regional Jet 700 (18.82%), and Canadair (Bombardier) Regional Jet 900 (17.37%).
What is the most popular airline from Washington, D.C. Reagan-National Airport to Louisville?
Based on momondo bookings for flights between Washington, D.C. Reagan-National Airport and Louisville, the leading airline is American Airlines, making up 95% of the total bookings. Other popular airlines include Delta with 5%.

Best airlines flying from Washington, D.C. Reagan-National Airport to Louisville

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

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $189	Free Cancellation	Rating 7.1 11,779 reviews		Search American Airlines flights
Delta	PriceFrom $202	Free Cancellation	Rating 7.8 8,451 reviews		Search Delta flights

American Airlines Flights From Washington, D.C. Reagan-National Airport to Louisville
American Airlines operates around 11 flights from Washington, D.C. Reagan-National Airport to Louisville every week. The average price of these flights found in the last 72 hours has been $335, but momondo users have found American Airlines deals from Washington, D.C. Reagan-National Airport to Louisville from as low as $189 round-trip. American Airlines has been scored 7.1/10 in 11,779 reviews.

French Lick

Elizabethtown

Jeffersonville

West Baden Springs

Bardstown

Shepherdsville

New Albany

Elizabeth

Charlestown

Corydon

Brandenburg

Georgetown

Springfield

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Washington, D.C. to Louisville. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. All flights to Louisville from Washington, D.C. on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once all potential Washington, D.C. to Louisville flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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. Reagan-National Airport to Louisville from $106

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Southwest flights from Washington, D.C. Reagan-National Airport to Louisville

Our best Southwest deals on Washington, D.C. Reagan-National Airport to Louisville flight tickets

Delta flights from Washington, D.C. Reagan-National Airport to Louisville

Our best Delta deals on Washington, D.C. Reagan-National Airport to Louisville flight tickets

momondo Fare Finder

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

See travel insights to Louisville from

How to get the cheapest flight ticket from Washington, D.C. Reagan-National Airport to Louisville

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

What is the cheapest month to fly to Louisville?

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. Reagan-National to Louisville Intl flight route?

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

What cabin class options are available on Washington, D.C. Reagan-National Airport to Louisville flights?

Can stopping save me money on Washington, D.C. Reagan-National Airport to Louisville flights?

How have Washington, D.C. Reagan-National Airport to Louisville flight prices changed over time?

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

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

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

When to book flights from Washington, D.C. Reagan-National Airport to Louisville

Cheap Washington, D.C. Reagan-National Airport to Louisville (DCA to SDF) flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Louisville

Frequently asked questions about flying from Washington, D.C. Reagan-National Airport to Louisville

Best airlines flying from Washington, D.C. Reagan-National Airport to Louisville

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

American Airlines Flights From Washington, D.C. Reagan-National Airport to Louisville

Traveling to a place near Louisville?

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An easier way to manage your Louisville trip

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List of cabin classes available on flights landing in Louisville. Availability may vary depending on flight origin and airline.

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