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Dulles Intl

$368+ Cheap flights from Bruxelles-National (BRU) 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 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
BRU — IAD
oct. 15 — oct. 221
mié. 10/15
mié. 10/22
1 adult, Economy
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Cheapflights Tip: The best prices from Brussels Bruxelles-National to Washington, D.C. Dulles Intl are usually found in May or March, booked 51 days in advance, depart on a Wednesday or Thursday and return on a Wednesday

Cheap flight deals from Bruxelles-National to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Bruxelles-National (BRU) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated septiembre 15, 2025.

Round-trip from

$515
(Flighttix)

One-way from

$368
(Cheapflightsfares)

Popular in

April

Cheapest in

May

Average price

$659

Good round-trip deal

$531 or less

Good one-way deal

$582 or less
From Brussels Bruxelles-National to Washington, D.C. Dulles Intl
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One-way flight from Brussels Bruxelles-National to Washington, D.C. Dulles Intl
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High demand for flights, 3% potential price rise
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Cheapest flight prices on average. 1% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Brussels Bruxelles-National to Washington, D.C. Dulles Intl.
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Price to beat on a one-way flight from Brussels Bruxelles-National to Washington, D.C. Dulles Intl.
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Find flight deals from Bruxelles-National to Dulles Intl

Cheapest flights from Bruxelles-National to Dulles Intl
Explore the most affordable flight options available from Bruxelles-National to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 15, 2025.

This United Airlines deal was found by Cheapflights users on 9/13. 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.
mié. 10/810:30 amBRU - IAD
1 stop11h 20mUnited Airlines
sáb. 10/1812:40 pmIAD - BRU
2 stops13h 25mUnited Airlines
Deal found 9/13$519
This lol.travel deal was found by Cheapflights users on 9/13. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/2012:00 pmBRU - IAD
Nonstop8h 25mUnited Airlines
vie. 10/35:45 pmIAD - BRU
Nonstop7h 30mUnited Airlines
Deal found 9/13$520
This United Airlines deal was found by Cheapflights users on 9/13. 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.
mar. 10/78:30 amBRU - IAD
1 stop12h 45mUnited Airlines
lun. 11/36:20 pmIAD - BRU
1 stop12h 55mUnited Airlines
Deal found 9/13$521
This American Airlines deal was found by Cheapflights users on 9/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/910:50 amBRU - IAD
1 stop11h 05mAmerican Airlines
dom. 11/26:20 pmIAD - BRU
1 stop19h 35mAmerican Airlines
Deal found 9/13$522
This United Airlines deal was found by Cheapflights users on 9/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/3012:00 pmBRU - IAD
Nonstop8h 25mUnited Airlines
dom. 11/235:45 pmIAD - BRU
Nonstop7h 30mUnited Airlines
Deal found 9/14$525
This United Airlines deal was found by Cheapflights users on 9/15. 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.
jue. 9/2510:45 amBRU - IAD
Nonstop8h 45mUnited Airlines
jue. 10/165:45 pmIAD - BRU
Nonstop7h 30mUnited Airlines
Deal found 9/15$526
This Flighttix deal was found by Cheapflights users on 9/13. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/109:30 amBRU - IAD
1 stop12h 20mMultiple Airlines
vie. 10/316:25 pmIAD - BRU
1 stop11h 45mMultiple Airlines
Deal found 9/13$527
This American Airlines deal was found by Cheapflights users on 9/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/1210:40 amBRU - IAD
2 stops39h 05mAmerican Airlines
mar. 10/285:06 amIAD - BRU
2 stops30h 54mAmerican Airlines
Deal found 9/13$528
This United Airlines deal was found by Cheapflights users on 9/13. 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.
vie. 10/1012:00 pmBRU - IAD
Nonstop8h 25mUnited Airlines
dom. 11/210:55 pmIAD - BRU
1 stop11h 20mUnited Airlines
Deal found 9/13$530
This United Airlines deal was found by Cheapflights users on 9/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/2710:00 amBRU - IAD
2 stops17h 01mUnited Airlines
sáb. 10/41:20 pmIAD - BRU
1 stop13h 40mUnited Airlines
Deal found 9/14$531
This Air Canada deal was found by Cheapflights users on 9/13. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/2010:00 amBRU - IAD
1 stop12h 18mAir Canada
vie. 10/38:28 amIAD - BRU
2 stops17h 37mAir Canada
Deal found 9/13$532

Cheapflights Fare Finder

 
Customize your flight search to find flights from Bruxelles-National 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 septiembre 15, 2025.
Use the filters below to find and compare flights from Brussels Bruxelles-National Airport to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Bruxelles-National

Fly to

Dulles Intl

Route

Depart

Return

Price

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

dom. 11/9

9:30 am-3:50 pm

1 stop12h 20m

Washington, D.C. Dulles Intl

jue. 11/20

5:45 pm-7:15 am

Nonstop7h 30m

$519

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

jue. 9/25

8:30 am-1:30 pm

1 stop11h 00m

Washington, D.C. Dulles Intl

jue. 10/16

9:35 am-8:05 am

1 stop16h 30m

$519

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

jue. 10/9

9:30 am-3:50 pm

1 stop12h 20m

Washington, D.C. Dulles Intl

dom. 10/12

5:45 pm-7:15 am

Nonstop7h 30m

$519

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

jue. 10/30

10:30 am-4:50 pm

1 stop11h 20m

Washington, D.C. Dulles Intl

jue. 11/6

8:30 am-7:50 am

2 stops17h 20m

$519

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

mié. 10/29

9:00 am-9:15 pm

1 stop17h 15m

Washington, D.C. Dulles Intl

mié. 11/5

5:45 pm-7:15 am

Nonstop7h 30m

$519

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

jue. 11/13

2:25 pm-8:15 pm

1 stop11h 50m

Washington, D.C. Dulles Intl

jue. 11/20

5:45 pm-7:15 am

Nonstop7h 30m

$519

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

sáb. 11/8

7:00 am-3:50 pm

1 stop14h 50m

Washington, D.C. Dulles Intl

jue. 11/20

5:45 pm-7:15 am

Nonstop7h 30m

$519

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

mié. 10/8

10:30 am-3:50 pm

1 stop11h 20m

Washington, D.C. Dulles Intl

sáb. 10/18

12:40 pm-8:05 am

2 stops13h 25m

$519

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

mié. 10/15

11:50 am-8:50 pm

1 stop15h 00m

$368

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

dom. 12/28

10:15 am-3:35 pm

1 stop11h 20m

$374

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 17 results
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The best insider tips for Brussels Bruxelles-National Airport to Washington, D.C. Dulles Intl Airport flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Brussels Bruxelles-National Airport to Washington, D.C. Dulles Intl Airport trip
Airlines
United Airlines

United's Polaris offers lie-flat seats and Saks Fifth Avenue bedding for ultimate comfort.


Premium Plus includes extra legroom seats, upgraded meals, and priority check-in on international flights.

Read more about United Airlinesby Harriet Baskas
Brussels Airlines

Business class offers lie-flat beds and access to the largest beer selection in the sky.


Economy class includes seatback entertainment and a free meal on long-haul flights.

Read more about Brussels Airlinesby John Walton
Lufthansa

Lufthansa's Allegris economy offers 31-inch pitch seats with adjustable headrests for added comfort.


Premium economy features hard-shell seats with generous recline and upgraded meals.

Read more about Lufthansaby Blane Bachelor
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on United Airlines

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
John Walton

John Walton

Expert on Brussels Airlines

John Walton

John Walton

Independent aviation journalist John Walton took his first flight at eight weeks old and hasn’t stopped travelling since. A world-renowned expert in airlines and the passenger experience, he writes in depth on aviation, is a resident expert on travel in Japan and France, and offers a uniquely queer perspective on travelling the world.

Read more
Blane Bachelor

Blane Bachelor

Expert on Lufthansa

Blane Bachelor

Blane Bachelor

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Read more

Best time to book a flight from Bruxelles-National to Dulles Intl

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

How far ahead should I book a flight from Brussels Bruxelles-National Airport to Washington, D.C. Dulles Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Bruxelles-National to Dulles Intl. Price data was last updated on September 12, 2025.

Booking 51 days in advance of your planned departure date is, on average, the best time to get cheap flights from Brussels Bruxelles-National Airport to Washington, D.C. Dulles Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Brussels Bruxelles-National Airport to Washington, D.C. Dulles Intl Airport?

Currently, August is the cheapest month in which you can book a flight from Brussels Bruxelles-National Airport to Washington, D.C. Dulles Intl Airport (average of $292). Flying from Brussels Bruxelles-National Airport to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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 BRU to IAD?

Find hourly flight availability from Bruxelles-National 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 septiembre 15, 2025.

It’s optimal to fly from Brussels Bruxelles-National Airport to Washington, D.C. Dulles Intl Airport in the afternoon. By choosing this option you can save up to 14% on the cost of your flight, compared to a flight in the morning.

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

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 septiembre 15, 2025.
Read through reviews of airlines operating flights from Brussels Bruxelles-National Airport to Washington, D.C. Dulles Intl Airport, such as United Airlines, Brussels Airlines, and Lufthansa. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,929 reviews

Entertainment

7.1

Boarding

7.7

Crew

8.1

Food

6.6

Overall

7.4

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
United Airlines
7.4
Good
8,929 reviews
United Airlines
7.4
Good
8,929 reviews

Entertainment

7.1

Boarding

7.7

Crew

8.1

Food

6.6

Overall

7.4

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
Brussels Airlines
7.3
Good
359 reviews
United Airlines
7.4
Good
8,929 reviews

Entertainment

7.1

Boarding

7.7

Crew

8.1

Food

6.6

Overall

7.4

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
Lufthansa
6.8
Okay
7,407 reviews
United Airlines
7.4
Good
8,929 reviews

Entertainment

7.1

Boarding

7.7

Crew

8.1

Food

6.6

Overall

7.4

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
British Airways
6.7
Okay
7,361 reviews
United Airlines
7.4
Good
8,929 reviews

Entertainment

7.1

Boarding

7.7

Crew

8.1

Food

6.6

Overall

7.4

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

Related info for your journey

Find useful and relevant information for your journey from Bruxelles-National 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 Brussels Bruxelles-National Airport to Washington, D.C. Dulles Intl Airport?

    A quick flight from Brussels Bruxelles-National Airport to Washington, D.C. Dulles Intl Airport can take about 11h. Lufthansa provides one of the quickest options available for as low as $519. There are 3879 mi between Brussels Bruxelles-National Airport and Washington, D.C. Dulles Intl Airport. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Brussels Bruxelles-National Airport to Washington, D.C. Dulles Intl Airport round-trip?

    British Airways, at $456, was found to be the cheapest airline from Brussels Bruxelles-National Airport to Washington, D.C. Dulles Intl Airport.Alternate airlines to your destination round-trip include United Airlines and Brussels Airlines. British Airways is currently priced 24% below the average price you’ll pay for this route.

  • What are the most reliable airlines from Brussels Bruxelles-National Airport to Washington, D.C. Dulles Intl Airport?

    Consider Air Canada (77%), Austrian Airlines (77%) or SWISS (77%) when booking your flight. These represent the most reliable airlines when flying from Brussels Bruxelles-National Airport to Washington, D.C. Dulles Intl Airport.

  • What are the cheapest flights from Brussels Bruxelles-National Airport to Washington, D.C. Dulles Intl Airport?

    On average you can expect to pay $673 for a flight from Brussels Bruxelles-National Airport to Washington, D.C. Dulles Intl Airport. The cheapest flight overall is $515 while the most popular route, (Brussels Bruxelles-National - Washington, D.C. Dulles Intl) is currently priced at $438.

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

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

  • How can I find direct flights from Bruxelles-National to Dulles Intl?

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

  • Can I find deals for business class flights from Bruxelles-National to Dulles Intl?

    Yes. Cheapflights offers flight deals from Bruxelles-National 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 Brussels Bruxelles-National Airport to Washington, D.C. Dulles Intl Airport?

    Currently, August is the cheapest month in which you can book a flight from Brussels Bruxelles-National Airport to Washington, D.C. Dulles Intl Airport (average of $292). Flying from Brussels Bruxelles-National Airport to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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
Woodbridge
Arlington
Alexandria
Tysons
Silver Spring
Springfield
Gaithersburg
Fredericksburg
Linthicum Heights
Fairfax
Falls Church
Owings Mills
Manassas
Rockville
Hanover
Oxon Hill
Laurel
Towson
National Harbor
Dundalk

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Alternative routes for Bruxelles-National to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
Bruxelles-National to Baltimore flights
Bruxelles-National to Reagan-National flights
Charleroi Brussels to Dulles Intl flights
Charleroi Brussels to Baltimore flights

Top 4 airlines flying from Bruxelles-National to Dulles Intl

Discover the top 4 airlines that operate flights from Bruxelles-National 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 septiembre 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$456Average$558FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$470Average$636FlexibilityNo cancel feeOn-time69%
Brussels AirlinesCheapest$496Average$668FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$521Average$698FlexibilityNo cancel feeOn-time76%

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