HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Dulles Intl

$116+ Cheap flights from Louisiana to Dulles Intl (IAD)

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 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
MSY — IAD
Feb 13 — Feb 201
Fri 2/13
Fri 2/20
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Louisiana to Dulles Intl 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 Louisiana to Dulles Intl

Keep the following information in mind while searching for Louisiana to Dulles Intl flight deals. Data was last updated January 14, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$217
(Kiwi.com)

One-way from

$116
(United Airlines)

Popular in

January

Cheapest in

August

Average price

$374

Good round-trip deal

$420 or less

Good one-way deal

$188 or less
Provider with most accurate pricing for New Orleans Louis Armstrong-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for New Orleans Louis Armstrong-Washington, D.C. (WAS) flights.
Search Deals
From Louisiana to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Louisiana to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($62 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from Louisiana to Washington, D.C. Dulles Intl.
Search Deals
Price to beat on a one-way flight from Louisiana to Washington, D.C. Dulles Intl.
Search Deals

Find flight deals from Louisiana to Dulles Intl

Cheapest flights from Louisiana to Dulles Intl
Explore the most affordable flight options available from Louisiana to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 14, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/268:58 pm
MSY
-
IAD
2 stops18h 26m
Multiple Airlines
Sun 3/12:04 pm
IAD
-
MSY
1 stop5h 27m
Multiple Airlines
Deal found 1/14$217
This Priceline deal was found by Cheapflights users on 1/14. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/208:31 am
MSY
-
IAD
Nonstop2h 30m
Frontier
Sun 2/2211:43 am
IAD
-
MSY
1 stop6h 23m
Frontier
Deal found 1/14$220
This Kiwi.com deal was found by Cheapflights users on 1/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/1411:48 am
MSY
-
IAD
1 stop11h 43m
Frontier
Sun 3/226:20 am
IAD
-
MSY
1 stop5h 33m
Frontier
Deal found 1/12$221
This Kiwi.com deal was found by Cheapflights users on 1/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/228:36 pm
MSY
-
IAD
1 stop11h 04m
Multiple Airlines
Thu 1/2911:37 am
IAD
-
MSY
1 stop11h 17m
Multiple Airlines
Deal found 1/11$222
This Kiwi.com deal was found by Cheapflights users on 1/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/228:36 pm
MSY
-
IAD
1 stop11h 04m
Multiple Airlines
Mon 1/261:31 pm
IAD
-
MSY
1 stop7h 10m
Multiple Airlines
Deal found 1/11$223
This Kiwi.com deal was found by Cheapflights users on 1/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/149:19 pm
MSY
-
IAD
2 stops20h 06m
Frontier
Fri 2/206:08 pm
IAD
-
MSY
1 stop5h 20m
Frontier
Deal found 1/12$225
This Kiwi.com deal was found by Cheapflights users on 1/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/611:45 am
MSY
-
IAD
1 stop11h 46m
Multiple Airlines
Thu 3/126:20 am
IAD
-
MSY
2 stops17h 59m
Multiple Airlines
Deal found 1/13$227
This Kiwi.com deal was found by Cheapflights users on 1/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/148:20 am
MSY
-
IAD
2 stops15h 11m
Multiple Airlines
Sun 3/226:20 am
IAD
-
MSY
1 stop5h 33m
Multiple Airlines
Deal found 1/12$228
This Kiwi.com deal was found by Cheapflights users on 1/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/611:45 am
MSY
-
IAD
1 stop11h 46m
Frontier
Fri 3/136:20 am
IAD
-
MSY
1 stop5h 33m
Frontier
Deal found 1/13$230
This United Airlines deal was found by Cheapflights users on 1/13. 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.
Tue 2/2412:48 pm
MSY
-
IAD
Nonstop2h 24m
United Airlines
Sat 2/285:50 pm
IAD
-
MSY
Nonstop2h 59m
United Airlines
Deal found 1/13$231
This Priceline deal was found by Cheapflights users on 1/12. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/73:37 pm
MSY
-
IAD
1 stop7h 54m
Frontier
Sun 3/156:20 am
IAD
-
MSY
1 stop5h 33m
Frontier
Deal found 1/12$235
This Kiwi.com deal was found by Cheapflights users on 1/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/186:24 am
MSY
-
IAD
2 stops23h 56m
Multiple Airlines
Sun 3/226:20 am
IAD
-
MSY
1 stop5h 33m
Multiple Airlines
Deal found 1/12$238

Cheapflights Fare Finder

 
Customize your flight search to find flights from Louisiana to Dulles Intl 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 January 14, 2026.
Use the filters below to find and compare flights from Louisiana to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Louisiana

Fly to

Dulles Intl

Route

Depart

Return

Price

New OrleansWashington, D.C.

MSY - IAD

MSYIAD

New Orleans Louis Armstrong

Thu 2/5

8:36 pm-8:40 am

1 stop11h 04m

Washington, D.C. Dulles Intl

Sat 2/7

11:39 am-7:41 pm

2 stops9h 02m

$241

New OrleansWashington, D.C.

MSY - IAD

MSYIAD

New Orleans Louis Armstrong

Tue 2/10

5:00 am-11:23 am

1 stop5h 23m

Washington, D.C. Dulles Intl

Tue 2/10

5:38 pm-11:44 pm

1 stop7h 06m

$247

AlexandriaWashington, D.C.

AEX - IAD

AEXIAD

Alexandria

Wed 1/28

2:23 pm-9:17 pm

1 stop5h 54m

Washington, D.C. Dulles Intl

Sun 2/1

5:26 pm-10:59 pm

1 stop6h 33m

$248

AlexandriaWashington, D.C.

AEX - IAD

AEXIAD

Alexandria

Thu 2/5

2:23 pm-9:17 pm

1 stop5h 54m

Washington, D.C. Dulles Intl

Mon 2/9

6:00 am-1:53 pm

1 stop8h 53m

$248

New OrleansWashington, D.C.

MSY - IAD

MSYIAD

New Orleans Louis Armstrong

Tue 2/10

5:00 am-11:23 am

1 stop5h 23m

Washington, D.C. Dulles Intl

Tue 2/17

6:03 am-10:59 am

1 stop5h 56m

$251

New OrleansWashington, D.C.

MSY - IAD

MSYIAD

New Orleans Louis Armstrong

Sat 2/14

9:00 am-4:05 pm

1 stop6h 05m

Washington, D.C. Dulles Intl

Wed 2/18

6:03 am-1:10 pm

1 stop8h 07m

$251

AlexandriaWashington, D.C.

AEX - IAD

AEXIAD

Alexandria

Mon 2/2

2:23 pm-11:12 pm

2 stops7h 49m

Washington, D.C. Dulles Intl

Mon 2/9

5:26 pm-10:59 pm

1 stop6h 33m

$254

New OrleansWashington, D.C.

MSY - IAD

MSYIAD

New Orleans Louis Armstrong

Sat 2/7

12:25 pm-7:09 pm

1 stop5h 44m

Washington, D.C. Dulles Intl

Tue 2/17

12:35 pm-4:30 pm

1 stop4h 55m

$271

AlexandriaWashington, D.C.

AEX - IAD

AEXIAD

Alexandria

Thu 2/12

10:03 am-4:50 pm

1 stop5h 47m

Washington, D.C. Dulles Intl

Sun 2/15

2:03 pm-11:14 pm

2 stops10h 11m

$274

LafayetteWashington, D.C.

LFT - IAD

LFTIAD

Lafayette Regional

Thu 2/19

5:21 pm-12:21 am

1 stop6h 00m

Washington, D.C. Dulles Intl

Sun 2/22

6:00 am-10:39 am

1 stop5h 39m

$279

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/12

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from Louisiana to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Louisiana 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 Louisiana to Washington, D.C. Dulles Intl Airport

What is the cheapest month to book a flight from Louisiana to Washington, D.C. Dulles Intl Airport?

Currently, May is the cheapest month in which you can book a flight from Louisiana to Washington, D.C. Dulles Intl Airport (average of $113). Flying from Louisiana to Washington, D.C. Dulles Intl Airport in November is currently the most expensive (average of $252). 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 LA to IAD?

Find hourly flight availability from Louisiana to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 14, 2026.

When flying from Louisiana to Washington, D.C. Dulles Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Louisiana to Washington, D.C. Dulles Intl Airport

Explore weekly flight availability from Louisiana to Dulles Intl. 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 January 14, 2026.

The most flights from USLA to IAD are scheduled on a Monday (9 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 on average).

How much does it cost to fly round-trip from Louisiana to Washington, D.C. Dulles Intl Airport?

Related info for your journey

Find useful and relevant information for your journey from Louisiana to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Louisiana to Washington, D.C. Dulles Intl Airport?

    For as low as $247, United Airlines can have you in Washington, D.C. Dulles Intl Airport from Louisiana in 5h 23m. There are 954 mi between Louisiana and Washington, D.C. Dulles Intl Airport. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Louisiana to Washington, D.C. Dulles Intl Airport one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $69. Users have also found prices from $118 and $118 on Delta and United Airlines, respectively.

  • What are the most popular routes from Louisiana to Washington, D.C. Dulles Intl Airport?

    When deciding which route to take from Louisiana to Washington, D.C. Dulles Intl Airport consider New Orleans Louis Armstrong - Washington, D.C. Dulles Intl, Baton Rouge Ryan - Washington, D.C. Dulles Intl or Lafayette Regional - Washington, D.C. Dulles Intl as they are the most popular.

  • What are the most reliable airlines from Louisiana to Washington, D.C. Dulles Intl Airport?

    Consider Republic Airways (100%), United Airlines (95%) or Austrian Airlines (95%) when booking your flight. These represent the most reliable airlines when flying from Louisiana to Washington, D.C. Dulles Intl Airport.

  • What are the cheapest flights from Louisiana to Washington, D.C. Dulles Intl Airport?

    On average you can expect to pay $581 for a flight from Louisiana to Washington, D.C. Dulles Intl Airport. The cheapest flight overall is $118 while the most popular route, (New Orleans Louis Armstrong - Washington, D.C. Dulles Intl) is currently priced at $147.

  • Can I find deals for flights from Louisiana to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on Louisiana to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Louisiana to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Louisiana to Dulles Intl.

  • Can I find deals for business class flights from Louisiana to Dulles Intl?

    Yes. Cheapflights offers flight deals from Louisiana to Dulles Intl 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 Louisiana to Washington, D.C. Dulles Intl Airport?

    Currently, May is the cheapest month in which you can book a flight from Louisiana to Washington, D.C. Dulles Intl Airport (average of $113). Flying from Louisiana to Washington, D.C. Dulles Intl Airport in November is currently the most expensive (average of $252). 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

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Silver Spring
Hanover
Fredericksburg
Linthicum Heights
Rockville
Laurel
Towson
Manassas
National Harbor
Largo
Bowie
McLean
Clinton
Herndon

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 Louisiana to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
Dallas/Fort Worth to Dulles Intl flights
Boston to Baltimore flights
Los Angeles to Reagan-National flights
Dallas/Fort Worth to Baltimore flights
Dallas/Fort Worth to Reagan-National flights
Los Angeles to Baltimore flights
Los Angeles to Dulles Intl flights
Boston to Reagan-National flights
Boston to Dulles Intl flights
O'Hare Intl to Reagan-National flights
Atlanta to Reagan-National flights
O'Hare Intl to Baltimore flights
Atlanta to Dulles Intl flights
O'Hare Intl to Dulles Intl flights
Seattle to Reagan-National flights
San Francisco to Reagan-National flights
Atlanta to Baltimore flights
Orlando to Dulles Intl flights
Seattle to Dulles Intl flights
Hobby to Reagan-National flights
Hobby to Baltimore flights
San Francisco to Baltimore flights
Hobby to Dulles Intl flights
Orlando to Reagan-National flights
Denver to Baltimore flights
San Francisco to Dulles Intl flights
Tampa to Dulles Intl flights
Denver to Dulles Intl flights
Tampa to Reagan-National flights
Seattle to Baltimore flights
Orlando to Baltimore flights
Fort Lauderdale to Baltimore flights
Charlotte to Dulles Intl flights
George Bush Intcntl to Dulles Intl flights
George Bush Intcntl to Reagan-National flights
Detroit to Dulles Intl flights
LaGuardia to Reagan-National flights
Tampa to Baltimore flights
Miami to Dulles Intl flights
Minneapolis to Reagan-National flights
Detroit to Baltimore flights
Denver to Reagan-National flights
John F Kennedy Intl to Dulles Intl flights
Detroit to Reagan-National flights
Sky Harbor Intl to Dulles Intl flights
Miami to Reagan-National flights
Fort Lauderdale to Reagan-National flights
Minneapolis to Dulles Intl flights
Nashville to Reagan-National flights
Minneapolis to Baltimore flights

Top 3 airlines flying from Louisiana to Dulles Intl

Discover the top 3 airlines that operate flights from Louisiana to Dulles Intl. 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 January 14, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$128Average$366FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$198Average$450FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$209Average$428FlexibilityNo cancel feeOn-time69%

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.