HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
District of Columbia

$91+ Cheap flights from Louisville (SDF) to District of Columbia

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 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — IAD
Aug 6 — Aug 131
Thu 8/6
Thu 8/13
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Louisville to District of Columbia 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.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Louisville to District of Columbia

Cheapest flights from Louisville to District of Columbia
Explore the most affordable flight options available from Louisville to District of Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 7, 2026.

This Southwest deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/159:00 am
SDF
-
DCA
1 stop5h 05m
Southwest
Sat 8/2212:45 pm
DCA
-
SDF
2 stops8h 20m
Southwest
Deal found 7/3$242
This American Airlines deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/66:11 am
SDF
-
DCA
Nonstop1h 49m
American Airlines
Sun 8/95:00 am
DCA
-
SDF
1 stop6h 15m
American Airlines
Deal found 7/1$243
This American Airlines deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/66:11 am
SDF
-
DCA
Nonstop1h 49m
American Airlines
Mon 8/105:35 pm
DCA
-
SDF
1 stop3h 56m
American Airlines
Deal found 7/3$244
This American Airlines deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/249:42 am
SDF
-
DCA
Nonstop1h 48m
American Airlines
Mon 7/277:45 pm
DCA
-
SDF
Nonstop1h 55m
American Airlines
Deal found 7/2$249
This United Airlines deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/3010:05 am
SDF
-
IAD
Nonstop1h 40m
United Airlines
Sun 8/28:31 am
IAD
-
SDF
Nonstop1h 52m
United Airlines
Deal found 7/6$249
This American Airlines deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/306:00 am
SDF
-
DCA
Nonstop1h 50m
American Airlines
Sun 8/26:59 am
DCA
-
SDF
Nonstop1h 53m
American Airlines
Deal found 7/6$250
This Delta deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/147:00 am
SDF
-
IAD
1 stop4h 59m
Delta
Fri 11/205:30 pm
IAD
-
SDF
1 stop5h 05m
Delta
Deal found 7/3$253
This Southwest deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/286:50 am
SDF
-
DCA
1 stop5h 10m
Southwest
Fri 7/316:35 am
DCA
-
SDF
1 stop5h 25m
Southwest
Deal found 7/2$255
This American Airlines deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/143:21 pm
SDF
-
DCA
Nonstop1h 51m
American Airlines
Sun 8/1611:35 am
DCA
-
SDF
1 stop6h 25m
American Airlines
Deal found 7/6$259
This American Airlines deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/282:01 pm
SDF
-
DCA
Nonstop1h 43m
American Airlines
Wed 8/58:41 am
DCA
-
SDF
Nonstop1h 59m
American Airlines
Deal found 7/2$261
This United Airlines deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/315:50 am
SDF
-
IAD
Nonstop1h 38m
United Airlines
Wed 11/45:20 pm
IAD
-
SDF
Nonstop1h 55m
United Airlines
Deal found 7/2$261
This United Airlines deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/226:00 am
SDF
-
IAD
Nonstop1h 35m
United Airlines
Sat 9/1912:50 pm
IAD
-
SDF
Nonstop1h 47m
United Airlines
Deal found 7/6$264

Find flight deals from Louisville to District of Columbia

Keep the following information in mind while searching for Louisville to District of Columbia flight deals. Data was last updated July 7, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$242
(Southwest)

One-way from

$91
(Southwest)

Popular in

June

Cheapest in

November

Average price

$259

Good round-trip deal

$294 or less

Good one-way deal

$238 or less
Provider with most accurate pricing for Louisville Intl-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Louisville Intl-Washington, D.C. (WAS) flights.
Search Deals
From Louisville Intl to District of Columbia
Search Deals
One-way flight from Louisville Intl to District of Columbia
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($21 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from Louisville Intl to District of Columbia.
Search Deals
Price to beat on a one-way flight from Louisville Intl to District of Columbia.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Louisville to District of Columbia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 7, 2026.
Use the filters below to find and compare flights from Louisville to District of Columbia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LouisvilleWashington, D.C.

SDF - DCA

SDFDCA

Louisville Intl

Sat 8/15

9:00 am-2:05 pm

1 stop5h 05m

Washington, D.C. Reagan-National

Sat 8/22

12:45 pm-9:05 pm

2 stops8h 20m

$242

LouisvilleWashington, D.C.

SDF - IAD

SDFIAD

Louisville Intl

Sat 8/15

1:56 pm-3:34 pm

Nonstop1h 38m

Washington, D.C. Dulles Intl

Sat 8/22

5:25 pm-7:15 pm

Nonstop1h 50m

$249

LouisvilleWashington, D.C.

SDF - IAD

SDFIAD

Louisville Intl

Sat 11/7

10:00 am-11:38 am

Nonstop1h 38m

Washington, D.C. Dulles Intl

Fri 11/13

8:35 am-10:31 am

Nonstop1h 56m

$249

LouisvilleWashington, D.C.

SDF - DCA

SDFDCA

Louisville Intl

Wed 10/7

8:35 am-4:20 pm

2 stops7h 45m

Washington, D.C. Reagan-National

Mon 10/19

3:25 pm-10:30 pm

2 stops7h 05m

$254

LouisvilleWashington, D.C.

SDF - IAD

SDFIAD

Louisville Intl

Sat 10/31

5:50 am-7:28 am

Nonstop1h 38m

Washington, D.C. Dulles Intl

Wed 11/4

5:20 pm-7:15 pm

Nonstop1h 55m

$261

LouisvilleWashington, D.C.

SDF - DCA

SDFDCA

Louisville Intl

Tue 8/25

8:45 am-2:00 pm

1 stop5h 15m

Washington, D.C. Reagan-National

Fri 8/28

3:35 pm-8:25 pm

1 stop4h 50m

$268

LouisvilleWashington, D.C.

SDF - DCA

SDFDCA

Louisville Intl

Sat 8/1

3:50 pm-9:49 pm

1 stop5h 59m

Washington, D.C. Reagan-National

Tue 8/4

12:23 pm-5:19 pm

1 stop4h 56m

$269

LouisvilleWashington, D.C.

SDF - DCA

SDFDCA

Louisville Intl

Sat 8/15

3:25 pm-7:34 pm

1 stop4h 09m

Washington, D.C. Reagan-National

Sat 8/22

10:10 am-2:18 pm

1 stop4h 08m

$269

LouisvilleWashington, D.C.

SDF - DCA

SDFDCA

Louisville Intl

Fri 8/14

10:34 am-4:34 pm

1 stop6h 00m

Washington, D.C. Reagan-National

Sun 8/16

6:10 am-9:54 am

1 stop3h 44m

$269

LouisvilleWashington, D.C.

SDF - DCA

SDFDCA

Louisville Intl

Wed 10/7

8:20 am-2:54 pm

1 stop6h 34m

Washington, D.C. Reagan-National

Sun 10/18

6:00 am-9:54 am

1 stop3h 54m

$269

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/6

Showing 1-10 of 41 resultsSorted by cheapest first
1
2
3
...
5

Best time to book a flight from Louisville to District of Columbia

Have a flexible travel schedule? Discover the best time to fly to District of Columbia from Louisville 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 Louisville to District of Columbia

What is the cheapest month to book a flight from Louisville to District of Columbia?

Currently, June is the cheapest month in which you can book a flight from Louisville to District of Columbia (average of $126). Flying from Louisville to District of Columbia in February is currently the most expensive (average of $189). 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 SDF to DC?

Find hourly flight availability from Louisville to District of Columbia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 7, 2026.

It’s optimal to fly from Louisville to District of Columbia in the evening. By choosing this option you can save up to 44% on the cost of your flight, compared to a flight at noon.

Weekly flight availability from Louisville to District of Columbia

Explore weekly flight availability from Louisville to District of Columbia. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 7, 2026.

The most flights from SDF to USDC are scheduled on a Monday (7 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (7 on average).

How much does it cost to fly round-trip from Louisville to District of Columbia?

How far ahead should I book a flight from Louisville to District of Columbia?

The best time to book flights from Louisville to District of Columbia is 75 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 day to fly from Louisville to District of Columbia?

Use this chart to determine the cheapest time to fly round-trip from Louisville to District of Columbia. Price data was last updated on July 4, 2026.

Travelers seeking maximum savings on their Louisville to District of Columbia flight should consider departing on Wednesday at noon when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing District of Columbia

Get insights into the airlines that provide service to District of Columbia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to District of Columbia. Reviews last updated July 7, 2026.
Get a feel of what it's like to fly with Southwest,Delta, andUnited Airlines from Louisville to District of Columbia by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
7.9
Good
4,250 reviews

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Food

7.0

Crew

8.6

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.
Southwest
7.9
Good
4,250 reviews
Southwest
7.9
Good
4,250 reviews

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Food

7.0

Crew

8.6

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.
Delta
7.8
Good
8,450 reviews
Southwest
7.9
Good
4,250 reviews

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Food

7.0

Crew

8.6

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.
United Airlines
7.4
Good
9,944 reviews
Southwest
7.9
Good
4,250 reviews

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Food

7.0

Crew

8.6

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.
American Airlines
7.1
Good
11,782 reviews
Southwest
7.9
Good
4,250 reviews

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Food

7.0

Crew

8.6

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.

Related info for your journey

Find useful and relevant information for your journey from Louisville to District of Columbia. 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 from for flights from Louisville to District of Columbia?

    Located just 5.3 mi from the city center, Louisville Intl (SDF) is the airport most travelers will use when flying to District of Columbia from Louisville.

  • How long is the flight from Louisville to District of Columbia?

    There are many flights that can get you from Louisville to District of Columbia in 1h 38m. Fly via Southwest, United Airlines, or Delta to get the fastest option. The distance from Louisville to District of Columbia is about 450 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Louisville to District of Columbia one-way?

    To fly one-way, consider booking your trip with Southwest, which is currently one of the cheapest options available, starting at $104. American Airlines flights start at $118 while deals on United Airlines start at $154 one-way.

  • What are the most reliable airlines from Louisville to District of Columbia?

    No one likes to see their flight delayed. When booking a flight from Louisville to District of Columbia consider choosing Republic Airways (96%), Air Canada (95%) or Copa Airlines (94%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Louisville to District of Columbia?

    The cheapest flight price from Louisville to District of Columbia is $140. On average you can expect to pay $1,352. The most popular route, (Louisville Intl - Washington, D.C. Dulles Intl), can usually be booked for $249.

  • Can I find deals for flights from Louisville to District of Columbia that include hotel bookings?

    Yes. In addition to deals on Louisville to District of Columbia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Louisville to District of Columbia?

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

  • Can I find deals for business class flights from Louisville to District of Columbia?

    Yes. Cheapflights offers flight deals from Louisville to District of Columbia 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 Louisville to District of Columbia?

    Currently, June is the cheapest month in which you can book a flight from Louisville to District of Columbia (average of $126). Flying from Louisville to District of Columbia in February is currently the most expensive (average of $189). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Louisville to District of Columbia

See prices for flight routes from nearby airports that may be better suited for you.
Cincinnati to Seattle flights
Cincinnati to Orlando flights
Nashville to Seattle flights
Cincinnati to John F Kennedy Intl flights
Cincinnati to Boston flights
Cincinnati to Denver flights
Cincinnati to LaGuardia flights
Cincinnati to Las Vegas flights
Nashville to Newark flights
Nashville to John F Kennedy Intl flights
Nashville to Los Angeles flights
Cincinnati to Newark flights
Nashville to Las Vegas flights
Nashville to Miami flights
Cincinnati to Fort Lauderdale flights
Cincinnati to Miami flights
Nashville to Denver flights
Nashville to Boston flights
Nashville to LaGuardia flights
Louisville to Newark flights
Cincinnati to Tampa flights
Cincinnati to O'Hare Intl flights
Louisville to John F Kennedy Intl flights
Cincinnati to Dallas/Fort Worth flights
Cincinnati to Los Angeles flights
Nashville to Orlando flights
Nashville to San Francisco flights
Nashville to Hobby flights
Nashville to O'Hare Intl flights
Louisville to Orlando flights
Louisville to LaGuardia flights
Louisville to Las Vegas flights
Nashville to Fort Lauderdale flights
Cincinnati to Hobby flights
Cincinnati to Fort Myers flights
Cincinnati to Orlando Sanford Intl flights
Nashville to George Bush Intcntl flights
Cincinnati to Reagan-National flights
Cincinnati to Sky Harbor Intl flights
Nashville to Reagan-National flights
Cincinnati to George Bush Intcntl flights
Nashville to Dallas/Fort Worth flights
Louisville to Boston flights
Knoxville to LaGuardia flights
Louisville to Miami flights
Cincinnati to Atlanta flights
Cincinnati to Dulles Intl flights
Cincinnati to Salt Lake City flights
Nashville to San Diego flights
Nashville to Baltimore flights

Top 4 airlines flying from Louisville to District of Columbia

Discover the top 4 airlines that operate flights from Louisville to District of Columbia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 7, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$189Average$297FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$189Average$281FlexibilityNo cancel feeOn-time71%
DeltaCheapest$208Average$314FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$227Average$369FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.