HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Dulles Intl

$384+ Cheap flights from Brussels 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 4/27. Fares are subject to change and may not be available on all flights or dates of travel.
BRU — IAD
Apr 9 — Apr 161
Thu 4/9
Thu 4/16
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Brussels 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.
Cheapflights Tip: The best prices from Brussels to Washington, D.C. Dulles Intl are usually found in February or May, booked 51 days in advance, depart on a Friday or Tuesday and return on a Wednesday

Cheap flight deals from Brussels to Dulles Intl

Cheapest flights from Brussels to Dulles Intl
Explore the most affordable flight options available from Brussels to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 10, 2026.

This ITA Airways deal was found by Cheapflights users on 3/5. 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 ITA Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/46:55 pm
BRU
-
IAD
1 stop25h 45m
ITA Airways
Sun 11/84:45 pm
IAD
-
BRU
1 stop19h 15m
ITA Airways
Deal found 3/5$582
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 4/13:15 pm
BRU
-
IAD
1 stop31h 45m
Scandinavian Airlines
Mon 4/138:20 pm
IAD
-
BRU
1 stop16h 10m
Scandinavian Airlines
Deal found 3/9$583
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 4/210:20 am
BRU
-
IAD
1 stop12h 40m
Scandinavian Airlines
Mon 4/138:20 pm
IAD
-
BRU
1 stop16h 10m
Scandinavian Airlines
Deal found 3/9$584
This Icelandair deal was found by Cheapflights users on 3/7. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/161:50 pm
BRU
-
IAD
1 stop11h 30m
Icelandair
Sat 10/318:40 pm
IAD
-
BRU
1 stop10h 15m
Icelandair
Deal found 3/7$585
This Mytrip deal was found by Cheapflights users on 3/7. 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 4/910:20 am
BRU
-
IAD
1 stop12h 40m
Scandinavian Airlines
Sat 4/188:20 pm
IAD
-
BRU
1 stop20h 40m
Scandinavian Airlines
Deal found 3/7$589
This Mytrip deal was found by Cheapflights users on 3/6. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/210:20 am
BRU
-
IAD
1 stop12h 40m
Scandinavian Airlines
Wed 4/158:20 pm
IAD
-
BRU
2 stops15h 55m
Scandinavian Airlines
Deal found 3/6$590
This Gotogate deal was found by Cheapflights users on 3/8. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/1111:35 am
BRU
-
IAD
1 stop33h 05m
ITA Airways
Sun 3/155:45 pm
IAD
-
BRU
1 stop19h 15m
ITA Airways
Deal found 3/8$591
This Mytrip deal was found by Cheapflights users on 3/6. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/910:20 am
BRU
-
IAD
1 stop12h 40m
Scandinavian Airlines
Wed 4/228:20 pm
IAD
-
BRU
2 stops15h 55m
Scandinavian Airlines
Deal found 3/6$592
This Flightnetwork deal was found by Cheapflights users on 3/5. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/286:55 pm
BRU
-
IAD
1 stop24h 35m
ITA Airways
Sat 4/1112:59 pm
IAD
-
BRU
2 stops15h 46m
ITA Airways
Deal found 3/5$593
This Mytrip deal was found by Cheapflights users on 3/8. 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.
Wed 4/2210:20 am
BRU
-
IAD
1 stop12h 40m
Scandinavian Airlines
Wed 4/298:20 pm
IAD
-
BRU
2 stops15h 55m
Scandinavian Airlines
Deal found 3/8$595
This Icelandair deal was found by Cheapflights users on 3/10. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/201:50 pm
BRU
-
IAD
1 stop11h 30m
Icelandair
Wed 5/278:30 pm
IAD
-
BRU
1 stop10h 25m
Icelandair
Deal found 3/10$598
This Mytrip deal was found by Cheapflights users on 3/8. 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.
Mon 4/139:30 pm
CRL
-
IAD
2 stops23h 40m
Multiple Airlines
Sun 4/198:30 pm
IAD
-
CRL
2 stops20h 15m
Multiple Airlines
Deal found 3/8$658

Find flight deals from Brussels to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Brussels (BR1) 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 March 10, 2026.

Round-trip from

$583
(Kiwi.com)

One-way from

$384
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$640
From Brussels to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Brussels to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($22 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Brussels 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 10, 2026.
Use the filters below to find and compare flights from Brussels to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Wed 5/20

1:50 pm-7:20 pm

1 stop11h 30m

Washington, D.C. Dulles Intl

Wed 5/27

8:30 pm-12:55 pm

1 stop10h 25m

$600

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Fri 4/3

10:20 am-5:00 pm

1 stop12h 40m

Washington, D.C. Dulles Intl

Wed 4/29

8:20 pm-2:35 pm

1 stop12h 15m

$656

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Fri 4/17

10:20 am-5:00 pm

1 stop12h 40m

Washington, D.C. Dulles Intl

Tue 4/21

12:45 pm-10:40 am

2 stops15h 55m

$659
Quickest round-trip

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Wed 5/20

12:00 pm-2:20 pm

Nonstop8h 20m

Washington, D.C. Dulles Intl

Wed 5/27

5:40 pm-7:15 am

Nonstop7h 35m

$662

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Thu 4/9

6:20 am-3:35 pm

1 stop15h 15m

Washington, D.C. Dulles Intl

Wed 4/22

12:45 pm-7:35 am

2 stops12h 50m

$665

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Fri 4/17

9:30 pm-5:15 pm

1 stop25h 45m

Washington, D.C. Dulles Intl

Tue 4/21

5:45 pm-9:55 am

1 stop10h 10m

$665

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Mon 4/20

6:20 am-3:35 pm

1 stop15h 15m

Washington, D.C. Dulles Intl

Mon 4/27

12:45 pm-9:40 am

2 stops14h 55m

$665

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Thu 7/9

6:45 am-3:05 pm

1 stop14h 20m

Washington, D.C. Dulles Intl

Mon 8/3

5:40 pm-7:15 am

Nonstop7h 35m

$667

BrusselsWashington, D.C.

CRL - IAD

CRLIAD

Charleroi Brussels

Mon 5/4

4:10 pm-3:10 pm

2 stops29h 00m

Washington, D.C. Dulles Intl

Sun 5/10

8:30 pm-10:45 pm

2 stops20h 15m

$683

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Tue 4/7

6:55 pm-5:00 pm

2 stops28h 05m

Washington, D.C. Dulles Intl

Thu 4/30

8:20 pm-2:35 pm

1 stop12h 15m

$685

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/9

Showing 1-10 of 42 resultsSorted by cheapest first
1
2
3
...
5

Best time to book a flight from Brussels to Dulles Intl

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

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

Use this chart to determine the optimal time to book a round-trip flight from Brussels to Dulles Intl. Price data was last updated on March 6, 2026.

To ensure you get the cheapest price possible for a flight from Brussels to Washington, D.C. Dulles Intl Airport, you should look to book at least 50 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 month to book a flight from Brussels to Washington, D.C. Dulles Intl Airport?

Currently, February is the cheapest month in which you can book a flight from Brussels to Washington, D.C. Dulles Intl Airport (average of $437). Flying from Brussels to Washington, D.C. Dulles Intl Airport in December is currently the most expensive (average of $557). 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 Brussels 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 10, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Brussels to Washington, D.C. Dulles Intl Airport as you normally would.

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

Explore weekly flight availability from Brussels 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 March 10, 2026.

The most flights from BR1 to IAD are scheduled on a Monday (6 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (6 on average).

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

How often are flights from Brussels to Washington, D.C. delayed?

About 16% of weekly flights between Brussels and Washington, D.C. have experienced delays in the past year, with the average delay time being 139 minutes.

What is the most punctual flight time for Brussels to Washington, D.C. flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Sunday tends to have the lowest number of delays on this route, whereas Monday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Brussels to Washington, D.C. flights?

Over the last year, United Airlines have had the lowest number of delays on this route, with just 12% of flights being delayed.

The best insider tips for Brussels to Washington, D.C. Dulles Intl Airport flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Brussels to Washington, D.C. Dulles Intl Airport trip
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on United Airlines

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

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 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

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 10, 2026.
Peruse reviews from past customers who have flown with United Airlines,Brussels Airlines, andLufthansa from Brussels to Washington, D.C. Dulles Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,409 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Food

6.6

Boarding

7.7

Crew

8.1

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
United Airlines
7.4
Good
9,409 reviews
United Airlines
7.4
Good
9,409 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Food

6.6

Boarding

7.7

Crew

8.1

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
Brussels Airlines
7.2
Good
389 reviews
United Airlines
7.4
Good
9,409 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Food

6.6

Boarding

7.7

Crew

8.1

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
Lufthansa
6.8
Okay
7,840 reviews
United Airlines
7.4
Good
9,409 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Food

6.6

Boarding

7.7

Crew

8.1

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats

Related info for your journey

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

    Icelandair, Scandinavian Airlines, and United Airlines can get you from Brussels to Washington, D.C. Dulles Intl Airport in just under 8h 20m. Your travel time can differ by up to 4h 20m. There are 3879 mi between Brussels and Washington, D.C. Dulles Intl Airport. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Cheapflights users have booked flights from Brussels to Washington, D.C. Dulles Intl Airport round-trip from $496. Other airlines that can offer you cheap pricing are United Airlines, from $522, and Lufthansa, from $558. Brussels Airlines is currently priced 22% below the average price you’ll pay for this route.

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

    The cheapest airline one-way is Aer Lingus, with whom users have recently found tickets for as low as $434. However, be on the lookout for offers from Austrian Airlines and Brussels Airlines, as they are both options that can get you from Brussels to Washington, D.C. Dulles Intl Airport for a low price.

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

    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 Brussels to Washington, D.C. Dulles Intl Airport on time: SWISS (86%), Air Canada (85%), Austrian Airlines (85%).

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

    While on average a flight from Brussels to Washington, D.C. Dulles Intl Airport is generally $1,427, our data shows the cheapest flight currently is $685. When looking at the most popular route, (Brussels Bruxelles-National - Washington, D.C. Dulles Intl), you can expect to pay $491 for that flight.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Brussels to Washington, D.C. Dulles Intl Airport (average of $437). Flying from Brussels to Washington, D.C. Dulles Intl Airport in December is currently the most expensive (average of $557). 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
Herndon
Hyattsville
Hanover
Laurel
Rockville
Upper Marlboro
Linthicum Heights
Fredericksburg
Largo
Bowie
Clinton
Towson
College Park

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 Brussels to Dulles Intl

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

Top 3 airlines flying from Brussels to Dulles Intl

Discover the top 3 airlines that operate flights from Brussels 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 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
Brussels AirlinesCheapest$496Average$666FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$522Average$675FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$558Average$769FlexibilityNo cancel feeOn-time76%

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.
Site
©2026 Cheapflights