Dulles Intl

$105+ 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 4/29. Fares are subject to change and may not be available on all flights or dates of travel.
MSY — IAD
Apr 2 — Apr 91
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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 March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$189
(United Airlines)

One-way from

$105
(United Airlines)

Popular in

March

Cheapest in

August

Average price

$315

Good round-trip deal

$545 or less

Good one-way deal

$233 or less
Provider with most accurate pricing for New Orleans Louis Armstrong-Washington, D.C. (WAS) flight deals.
Provider most trusted by Cheapflights users for New Orleans Louis Armstrong-Washington, D.C. (WAS) flights.
From Louisiana to Washington, D.C. Dulles Intl
One-way flight from Louisiana to Washington, D.C. Dulles Intl
Highest demand for flights based on searches. 9% potential increase in price ($27 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Average for round-trip flights in March 2025
Price to beat on a round-trip flight from Louisiana to Washington, D.C. Dulles Intl.
Price to beat on a one-way flight from Louisiana to Washington, D.C. Dulles Intl.

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 March 28, 2025.

This United Airlines deal was found by Cheapflights users on 3/27. 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 5/88:00 amMSY - IAD
Nonstop2h 28mUnited Airlines
Mon 5/128:35 amIAD - MSY
Nonstop2h 49mUnited Airlines
Deal found 3/27$189
This Delta deal was found by Cheapflights users on 3/27. 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.
Mon 6/25:11 pmMSY - IAD
1 stop4h 43mDelta
Thu 6/56:00 amIAD - MSY
1 stop5h 18mDelta
Deal found 3/27$217
This Southwest deal was found by Cheapflights users on 3/27. 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.
Thu 4/245:30 amMSY - IAD
1 stop11h 25mSouthwest
Mon 4/287:25 amIAD - MSY
1 stop11h 05mSouthwest
Deal found 3/27$220
This United Airlines deal was found by Cheapflights users on 3/27. 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.
Mon 5/52:20 pmLCH - IAD
1 stop6h 53mUnited Airlines
Fri 5/94:00 pmIAD - LCH
1 stop6h 41mUnited Airlines
Deal found 3/27$237
This CheapOair deal was found by Cheapflights users on 3/27. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/34:58 pmMSY - IAD
1 stop23h 07mFrontier
Mon 4/75:54 pmIAD - MSY
1 stop19h 48mFrontier
Deal found 3/27$240
This American Airlines deal was found by Cheapflights users on 3/27. 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 4/1512:16 pmLCH - IAD
2 stops10h 40mAmerican Airlines
Wed 4/165:13 pmIAD - LCH
1 stop6h 26mAmerican Airlines
Deal found 3/27$242
This Mytrip deal was found by Cheapflights users on 3/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/812:10 pmMSY - IAD
1 stop23h 13mMultiple Airlines
Mon 5/128:25 amIAD - MSY
3 stops13h 54mMultiple Airlines
Deal found 3/27$270
This American Airlines deal was found by Cheapflights users on 3/27. 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.
Wed 4/307:00 amMSY - IAD
2 stops8h 22mAmerican Airlines
Fri 5/95:02 amIAD - MSY
1 stop5h 54mAmerican Airlines
Deal found 3/27$274
This Delta deal was found by Cheapflights users on 3/27. 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.
Wed 5/215:27 pmBTR - IAD
1 stop5h 08mDelta
Tue 6/312:53 pmIAD - BTR
1 stop4h 49mDelta
Deal found 3/27$305
This American Airlines deal was found by Cheapflights users on 3/28. 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.
Wed 5/74:31 pmBTR - IAD
1 stop5h 26mAmerican Airlines
Sat 5/109:11 amIAD - BTR
2 stops9h 41mAmerican Airlines
Deal found 3/28$310
This United Airlines deal was found by Cheapflights users on 3/27. 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 4/265:00 amBTR - IAD
1 stop5h 30mUnited Airlines
Sun 4/276:09 amIAD - BTR
1 stop6h 03mUnited Airlines
Deal found 3/27$320
This Kiwi.com deal was found by Cheapflights users on 3/26. 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 4/246:40 pmMSY - IAD
1 stop16h 43mSun Country Air
Mon 4/2811:37 amIAD - MSY
1 stop7h 11mSun Country Air
Deal found 3/26$357

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 March 28, 2025.
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 5/8

8:00 am-11:28 am

Nonstop2h 28m

Washington, D.C. Dulles Intl

Mon 5/12

8:35 am-10:24 am

Nonstop2h 49m

$189

New OrleansWashington, D.C.

MSY - IAD

MSYIAD

New Orleans Louis Armstrong

Mon 6/2

5:11 pm-10:54 pm

1 stop4h 43m

Washington, D.C. Dulles Intl

Thu 6/5

6:00 am-10:18 am

1 stop5h 18m

$217

New OrleansWashington, D.C.

MSY - IAD

MSYIAD

New Orleans Louis Armstrong

Thu 4/24

5:30 am-5:55 pm

1 stop11h 25m

Washington, D.C. Dulles Intl

Mon 4/28

7:25 am-5:30 pm

1 stop11h 05m

$220

Lake CharlesWashington, D.C.

LCH - IAD

LCHIAD

Lake Charles

Mon 5/5

2:20 pm-10:13 pm

1 stop6h 53m

Washington, D.C. Dulles Intl

Fri 5/9

4:00 pm-9:41 pm

1 stop6h 41m

$237

Lake CharlesWashington, D.C.

LCH - IAD

LCHIAD

Lake Charles

Tue 4/15

12:16 pm-11:56 pm

2 stops10h 40m

Washington, D.C. Dulles Intl

Wed 4/16

5:13 pm-10:39 pm

1 stop6h 26m

$242

New OrleansWashington, D.C.

MSY - IAD

MSYIAD

New Orleans Louis Armstrong

Thu 5/8

12:10 pm-12:23 pm

1 stop23h 13m

Washington, D.C. Dulles Intl

Mon 5/12

8:25 am-9:19 pm

3 stops13h 54m

$270

New OrleansWashington, D.C.

MSY - IAD

MSYIAD

New Orleans Louis Armstrong

Wed 4/30

7:00 am-4:22 pm

2 stops8h 22m

Washington, D.C. Dulles Intl

Fri 5/9

5:02 am-9:56 am

1 stop5h 54m

$274

Baton RougeWashington, D.C.

BTR - IAD

BTRIAD

Baton Rouge Ryan

Wed 5/21

5:27 pm-11:35 pm

1 stop5h 08m

Washington, D.C. Dulles Intl

Tue 6/3

12:53 pm-4:42 pm

1 stop4h 49m

$305

Baton RougeWashington, D.C.

BTR - IAD

BTRIAD

Baton Rouge Ryan

Wed 5/7

4:31 pm-10:57 pm

1 stop5h 26m

Washington, D.C. Dulles Intl

Sat 5/10

9:11 am-5:52 pm

2 stops9h 41m

$310

New OrleansWashington, D.C.

MSY - IAD

MSYIAD

New Orleans Louis Armstrong

Fri 4/18

3:14 pm-11:58 am

1 stop19h 44m

Washington, D.C. Dulles Intl

Sat 4/26

5:35 pm-11:32 am

1 stop18h 57m

$320

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 47 results
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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, August is the cheapest month in which you can book a flight from Louisiana to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Louisiana to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $385). 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 March 28, 2025.

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.

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated March 28, 2025.
See what other customers who have flown with Southwest, Alaska Airlines and Delta from Louisiana to Washington, D.C. have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Entertainment

7.6

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Comfort

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Entertainment

7.6

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Comfort

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Entertainment

7.6

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
8.0
Very good

Comfort

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Entertainment

7.6

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Comfort

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Entertainment

7.6

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Comfort

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Entertainment

7.6

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

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.
  • 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 United Airlines. According to our data, you can fly for as low as $105. Users have also found prices from $109 and $110 on Delta and Southwest, respectively.

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

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

    Consider United Airlines (93%), Mesa Airlines (92%) or Copa Airlines (90%) 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 $2,176 for a flight from Louisiana to Washington, D.C. Dulles Intl Airport. The cheapest flight overall is $145 while the most popular route, (New Orleans Louis Armstrong - Washington, D.C. Dulles Intl) is currently priced at $189.

  • 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, August is the cheapest month in which you can book a flight from Louisiana to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Louisiana to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $385). 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 Louisiana?

Book flights to Louisiana if you plan to visit one of these locations
Arlington
Alexandria
Fairfax
Tysons
Springfield
Rockville
Woodbridge
Gaithersburg
Fredericksburg
Linthicum Heights
Silver Spring
Falls Church
Laurel
Easton
Herndon
Sterling
Bowie
Gettysburg
National Harbor
Oxon Hill

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Alternative routes for Louisiana to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.

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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$177Average$401FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$189Average$327FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$198Average$388FlexibilityNo cancel feeOn-time71%
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