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$118+ Cheap flights from Dulles Intl (IAD) to Louisiana

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 8/10. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — MSY
Aug 21 — Aug 281
Fri 8/21
Fri 8/28
1 adult, Economy
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Cheap flight deals from Dulles Intl to Louisiana

Cheapest flights from Dulles Intl to Louisiana
Explore the most affordable flight options available from Dulles Intl to Louisiana. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 22, 2026.

This Kiwi.com deal was found by Cheapflights users on 7/18. 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 9/58:39 pm
IAD
-
MSY
2 stops20h 59m
Multiple Airlines
Mon 9/145:02 pm
MSY
-
IAD
1 stop6h 26m
Multiple Airlines
Deal found 7/18$251
This Kiwi.com deal was found by Cheapflights users on 7/18. 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 10/227:00 am
IAD
-
MSY
1 stop10h 07m
Frontier
Mon 10/265:02 pm
MSY
-
IAD
1 stop6h 26m
Frontier
Deal found 7/18$254
This Kiwi.com deal was found by Cheapflights users on 7/19. 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.
Mon 8/177:48 am
IAD
-
MSY
1 stop9h 36m
Frontier
Sat 8/227:11 pm
MSY
-
IAD
1 stop21h 03m
Frontier
Deal found 7/19$255
This eDestinos deal was found by Cheapflights users on 7/21. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/107:48 am
IAD
-
MSY
1 stop9h 36m
Frontier
Thu 8/135:02 pm
MSY
-
IAD
1 stop23h 12m
Frontier
Deal found 7/21$256
This Kiwi.com deal was found by Cheapflights users on 7/22. 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 8/2812:00 pm
IAD
-
MSY
2 stops7h 45m
Multiple Airlines
Sun 8/307:11 pm
MSY
-
IAD
1 stop21h 03m
Multiple Airlines
Deal found 7/22$257
This Frontier deal was found by Cheapflights users on 7/19. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/297:00 am
IAD
-
MSY
1 stop10h 03m
Frontier
Tue 11/34:58 pm
MSY
-
IAD
1 stop6h 30m
Frontier
Deal found 7/19$258
This Kiwi.com deal was found by Cheapflights users on 7/18. 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 8/288:59 am
IAD
-
MSY
1 stop21h 01m
Multiple Airlines
Sat 8/297:11 pm
MSY
-
IAD
1 stop21h 03m
Multiple Airlines
Deal found 7/18$259
This Kiwi.com deal was found by Cheapflights users on 7/22. 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 8/1412:00 pm
IAD
-
MSY
2 stops7h 45m
Multiple Airlines
Mon 8/175:09 pm
MSY
-
IAD
1 stop23h 05m
Multiple Airlines
Deal found 7/22$260
This Kiwi.com deal was found by Cheapflights users on 7/18. 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 8/134:03 pm
IAD
-
MSY
1 stop26h 05m
Multiple Airlines
Mon 8/1712:36 pm
MSY
-
IAD
2 stops9h 16m
Multiple Airlines
Deal found 7/18$261
This Kiwi.com deal was found by Cheapflights users on 7/22. 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 10/157:00 am
IAD
-
MSY
1 stop10h 07m
Multiple Airlines
Mon 10/196:03 pm
MSY
-
IAD
2 stops25h 18m
Multiple Airlines
Deal found 7/22$262
This United Airlines deal was found by Cheapflights users on 7/22. 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 8/266:00 pm
IAD
-
MSY
Nonstop2h 48m
United Airlines
Tue 9/112:00 pm
MSY
-
IAD
Nonstop2h 29m
United Airlines
Deal found 7/22$263
This Kiwi.com deal was found by Cheapflights users on 7/17. 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.
Sun 8/164:27 pm
IAD
-
MSY
1 stop25h 41m
Multiple Airlines
Sun 8/236:17 pm
MSY
-
IAD
2 stops16h 03m
Multiple Airlines
Deal found 7/17$264

Find flight deals from Dulles Intl to Louisiana

Keep the following information in mind while searching for Dulles Intl to Louisiana flight deals. Data was last updated July 22, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$251
(Kiwi.com)

One-way from

$118
(Kiwi.com)

Popular in

July

Cheapest in

September

Average price

$412

Good round-trip deal

$360 or less

Good one-way deal

$193 or less
Provider with most accurate pricing for Washington, D.C. (WAS)-New Orleans Louis Armstrong flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-New Orleans Louis Armstrong flights.
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From Washington, D.C. Dulles Intl to Louisiana
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Louisiana
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($13 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 Washington, D.C. Dulles Intl to Louisiana.
Search Deals
Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Louisiana.
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Louisiana 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 22, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Louisiana that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

Washington, D.C.New Orleans

IAD - MSY

IADMSY

Washington, D.C. Dulles Intl

Wed 8/26

6:00 pm-7:48 pm

Nonstop2h 48m

New Orleans Louis Armstrong

Sat 8/29

11:31 am-3:00 pm

Nonstop2h 29m

$291

Washington, D.C.New Orleans

IAD - MSY

IADMSY

Washington, D.C. Dulles Intl

Mon 8/10

8:02 pm-9:49 pm

Nonstop2h 47m

New Orleans Louis Armstrong

Mon 8/17

12:03 pm-6:59 pm

1 stop5h 56m

$301

Washington, D.C.New Orleans

IAD - MSY

IADMSY

Washington, D.C. Dulles Intl

Thu 9/24

6:00 pm-7:47 pm

Nonstop2h 47m

New Orleans Louis Armstrong

Tue 9/29

5:28 pm-12:30 am

1 stop6h 02m

$301

Washington, D.C.New Orleans

IAD - MSY

IADMSY

Washington, D.C. Dulles Intl

Sat 8/8

8:02 pm-9:49 pm

Nonstop2h 47m

New Orleans Louis Armstrong

Mon 8/10

3:43 pm-10:43 pm

1 stop6h 00m

$301

Washington, D.C.New Orleans

IAD - MSY

IADMSY

Washington, D.C. Dulles Intl

Mon 8/10

8:02 pm-9:49 pm

Nonstop2h 47m

New Orleans Louis Armstrong

Wed 8/12

10:24 am-5:37 pm

1 stop6h 13m

$301

Washington, D.C.New Orleans

IAD - MSY

IADMSY

Washington, D.C. Dulles Intl

Tue 8/11

3:03 pm-6:10 pm

1 stop4h 07m

New Orleans Louis Armstrong

Thu 8/13

10:20 am-6:33 pm

1 stop7h 13m

$311

Washington, D.C.Shreveport

IAD - SHV

IADSHV

Washington, D.C. Dulles Intl

Sat 8/22

8:28 am-1:00 pm

1 stop5h 32m

Shreveport

Sat 8/29

6:00 am-1:43 pm

1 stop6h 43m

$317

Washington, D.C.Shreveport

IAD - SHV

IADSHV

Washington, D.C. Dulles Intl

Sat 1/16

1:00 pm-5:25 pm

1 stop5h 25m

Shreveport

Sat 1/30

4:08 pm-10:36 pm

1 stop5h 28m

$317

Washington, D.C.Shreveport

IAD - SHV

IADSHV

Washington, D.C. Dulles Intl

Thu 9/17

6:00 am-9:45 am

1 stop4h 45m

Shreveport

Sat 9/19

8:10 am-2:11 pm

1 stop5h 01m

$318

Washington, D.C.Shreveport

IAD - SHV

IADSHV

Washington, D.C. Dulles Intl

Wed 8/26

12:30 pm-4:19 pm

1 stop4h 49m

Shreveport

Mon 8/31

4:00 pm-12:34 am

1 stop7h 34m

$318

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/21

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Dulles Intl to Louisiana

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

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

Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Louisiana (average of $328). Flying from Washington, D.C. Dulles Intl Airport to Louisiana in February is currently the most expensive (average of $476). 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 IAD to LA?

Find hourly flight availability from Dulles Intl to Louisiana. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 22, 2026.

A simple way to save on the total cost of your ticket is to fly from Washington, D.C. Dulles Intl Airport to Louisiana in the morning. If you’re flexible enough to do this you can expect to save up to 6% on your trip compared to booking a flight at noon.

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

Explore weekly flight availability from Dulles Intl to Louisiana. 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 22, 2026.

The most flights from IAD to USLA are scheduled on a Friday (9 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (5 on average).

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

How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to Louisiana?

To ensure you get the cheapest price possible for a flight from Washington, D.C. Dulles Intl Airport to Louisiana, you should look to book at least 53 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest day to fly from Washington, D.C. Dulles Intl Airport to Louisiana?

Use this chart to determine the cheapest time to fly round-trip from Dulles Intl to Louisiana. Price data was last updated on July 18, 2026.

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

Reviews of airlines servicing Louisiana

Get insights into the airlines that provide service to Louisiana. 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 Louisiana. Reviews last updated July 22, 2026.
Peruse reviews from past customers who have flown with Delta,United Airlines, andAmerican Airlines from Washington, D.C. Dulles Intl Airport to Louisiana to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.8
Good
8,479 reviews

Crew

8.5

Comfort

7.8

Overall

7.8

Boarding

8.1

Food

7.2

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Delta
7.8
Good
8,479 reviews
Delta
7.8
Good
8,479 reviews

Crew

8.5

Comfort

7.8

Overall

7.8

Boarding

8.1

Food

7.2

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
United Airlines
7.4
Good
10,024 reviews
Delta
7.8
Good
8,479 reviews

Crew

8.5

Comfort

7.8

Overall

7.8

Boarding

8.1

Food

7.2

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
American Airlines
7.1
Good
11,831 reviews
Delta
7.8
Good
8,479 reviews

Crew

8.5

Comfort

7.8

Overall

7.8

Boarding

8.1

Food

7.2

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Frontier
5.6
Fair
2,770 reviews
Delta
7.8
Good
8,479 reviews

Crew

8.5

Comfort

7.8

Overall

7.8

Boarding

8.1

Food

7.2

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Louisiana. 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 Washington, D.C. Dulles Intl Airport to Louisiana?

    Airlines like United Airlines, Delta, and American Airlines fly from Washington, D.C. Dulles Intl Airport to Louisiana in about 2h 48m. The time it takes to get you to your destination can typically vary by up to 10h 44m. Airlines will cover a distance of 954 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    One-way options have recently been found by users for as low as $80 on Frontier. Other airlines that offer cheap prices include United Airlines from $115 and American Airlines from $125 one-way.

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

    The most popular route from Washington, D.C. Dulles Intl Airport to Louisiana is Washington, D.C. Dulles Intl - New Orleans Louis Armstrong. You may also consider Washington, D.C. Dulles Intl - Baton Rouge Ryan or Washington, D.C. Dulles Intl - Lafayette Regional.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Washington, D.C. Dulles Intl Airport to Louisiana on time: Mesa Airlines (100%), Air Canada (87%), Copa Airlines (87%).

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

    The cheapest flight price from Washington, D.C. Dulles Intl Airport to Louisiana is $97. On average you can expect to pay $332. The most popular route, (Washington, D.C. Dulles Intl - New Orleans Louis Armstrong), can usually be booked for $176.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Dulles Intl to Louisiana 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. Dulles Intl Airport to Louisiana?

    Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Louisiana (average of $328). Flying from Washington, D.C. Dulles Intl Airport to Louisiana in February is currently the most expensive (average of $476). 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.

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Alternative routes for Dulles Intl to Louisiana

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to Seattle flights
Baltimore to Dallas/Fort Worth flights
Dulles Intl to Dallas/Fort Worth flights
Reagan-National to Seattle flights
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Baltimore to O'Hare Intl flights
Dulles Intl to Orlando flights
Reagan-National to Dallas/Fort Worth flights
Baltimore to Orlando flights
Baltimore to Los Angeles flights
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Reagan-National to Miami flights
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Reagan-National to Las Vegas flights
Baltimore to Miami flights
Reagan-National to Boston flights
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Dulles Intl to O'Hare Intl flights
Dulles Intl to Los Angeles flights
Baltimore to Denver flights
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Baltimore to Boston flights
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Reagan-National to San Francisco flights
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Baltimore to San Francisco flights
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Baltimore to Atlanta flights
Dulles Intl to Fort Lauderdale flights
Baltimore to George Bush Intcntl flights
Dulles Intl to Tampa flights
Dulles Intl to Midway flights
Reagan-National to Atlanta flights
Reagan-National to Hobby flights
Baltimore to Tampa flights
Reagan-National to Minneapolis flights
Dulles Intl to Hobby flights
Reagan-National to Nashville flights
Reagan-National to Tampa flights
Reagan-National to Fort Lauderdale flights
Dulles Intl to Minneapolis flights
Reagan-National to Denver flights
Dulles Intl to New Orleans flights
Baltimore to Detroit flights
Dulles Intl to Austin flights

Top 4 airlines flying from Dulles Intl to Louisiana

Discover the top 4 airlines that operate flights from Dulles Intl to Louisiana. 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 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$112Average$412FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$126Average$256FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$169Average$448FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$258Average$449FlexibilityNo cancel feeOn-time71%

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