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Cheap flights from Brussels Bruxelles-National Airport to Washington, D.C. Dulles Intl Airport from £289

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 4/2. Fares are subject to change and may not be available on all flights or dates of travel.
BRU — IAD
4 Jan — 11 Jan1
1 adult
1 adult, Economy, 0 bags

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 Thursday or Wednesday and return on a Tuesday

Cheap flight deals from Bruxelles-National to Dulles Intl

Enter your travel dates to find the best prices.

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 5 December 2025.

Thu 18/1211:55BRU - IAD
Nonstop8h 40mUnited Airlines
Tue 30/1217:45IAD - BRU
Nonstop7h 30mUnited Airlines
Deal found 3/12£478
Fri 26/1211:55BRU - IAD
Nonstop8h 40mUnited Airlines
Sun 11/118:20IAD - BRU
1 stop12h 55mUnited Airlines
Deal found 4/12£480
Thu 25/1206:00BRU - IAD
1 stop15h 15mTAP AIR PORTUGAL
Tue 30/1217:30IAD - BRU
1 stop24h 20mTAP AIR PORTUGAL
Deal found 3/12£495
Wed 24/1211:55BRU - IAD
Nonstop8h 40mUnited Airlines
Sat 10/113:05IAD - BRU
2 stops18h 10mUnited Airlines
Deal found 4/12£497
Wed 24/1210:45BRU - IAD
1 stop11h 20mDelta
Sat 31/112:23IAD - BRU
2 stops15h 47mDelta
Deal found 3/12£499
Thu 25/1206:15BRU - IAD
1 stop15h 50mDelta
Tue 30/1218:05IAD - BRU
1 stop14h 10mDelta
Deal found 4/12£501

Find 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 5 December 2025.

Round-trip from

£434

One-way from

£289

Popular in

April

Cheapest in

May

Average price

£519

Good round-trip deal

£529 or less
United Airlines
  • United Airlines
  • 16/1-29/1
  • Nonstop
  • 16h 10m total
  • Brussels to Washington, D.C.
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4/2
  • 4/2
  • 1 total stop
  • 14h 05m total
  • Brussels to Washington, D.C.
Search Deals
High demand for flights, 5% potential price rise
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Cheapest flight prices on average. 1% potential price decrease (£6 potential savings vs. average return price).
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Average for round-trip flights in December 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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Cheapflights Fare Finder

 
Customise 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 858,174 searches. Data last updated 5 December 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

Fri 16/1

11:55-14:35

Nonstop8h 40m

Washington, D.C. Dulles Intl

Thu 29/1

17:45-07:15

Nonstop7h 30m

£434

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Fri 24/4

12:00-14:20

Nonstop8h 20m

Washington, D.C. Dulles Intl

Sun 3/5

17:35-07:25

Nonstop7h 50m

£434

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Wed 13/5

12:00-14:20

Nonstop8h 20m

Washington, D.C. Dulles Intl

Sun 17/5

17:35-07:25

Nonstop7h 50m

£434

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Fri 6/2

11:55-14:35

Nonstop8h 40m

Washington, D.C. Dulles Intl

Thu 12/2

18:20-13:15

1 stop12h 55m

£434

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Fri 24/4

12:00-14:20

Nonstop8h 20m

Washington, D.C. Dulles Intl

Sat 2/5

15:30-09:00

1 stop11h 30m

£434

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Thu 22/1

11:55-14:35

Nonstop8h 40m

Washington, D.C. Dulles Intl

Mon 26/1

17:45-07:15

Nonstop7h 30m

£434

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Fri 6/2

11:55-14:35

Nonstop8h 40m

Washington, D.C. Dulles Intl

Thu 12/2

17:40-13:10

1 stop13h 30m

£437

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Sun 15/2

11:55-14:35

Nonstop8h 40m

Washington, D.C. Dulles Intl

Mon 23/2

17:40-10:20

1 stop10h 40m

£437

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Sat 17/1

10:45-19:09

2 stops14h 24m

Washington, D.C. Dulles Intl

Sat 24/1

12:23-10:10

2 stops15h 47m

£441

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Thu 12/2

10:45-16:05

1 stop11h 20m

Washington, D.C. Dulles Intl

Thu 19/2

12:35-10:10

2 stops15h 35m

£455

Flights are sorted by cheapest return flights first.

Deals found on 3/12

Showing 1-10 of 22 results
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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 return 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 return flight from Bruxelles-National to Dulles Intl. Price data was last updated on 28 November 2025.

The best time to book flights from Brussels Bruxelles-National Airport to Washington, D.C. Dulles Intl Airport is 51 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, June 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 £314). Flying from Brussels Bruxelles-National Airport to Washington, D.C. Dulles Intl Airport in February is currently the most expensive (average of £396). 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 5 December 2025.

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

How much does it cost for a return flight from Brussels Bruxelles-National Airport to Washington, D.C. Dulles Intl Airport?

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?

    For as low as £434, United Airlines can have you in Washington, D.C. Dulles Intl Airport from Brussels Bruxelles-National Airport in 8h 40m. Brussels Bruxelles-National Airport and Washington, D.C. Dulles Intl Airport are separated by a distance of 3879 mi. All flights are typically direct.

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

    Consider Lufthansa (85%), Air Canada (83%) or Austrian Airlines (83%) 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?

    Looking for the cheapest flight from Brussels Bruxelles-National Airport to Washington, D.C. Dulles Intl Airport? While on average our users pay £544, our data indicates the cheapest price to be £483. The most popular route (Brussels Bruxelles-National - Washington, D.C. Dulles Intl), is priced around £611.

  • 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 holiday 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, June 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 £314). Flying from Brussels Bruxelles-National Airport to Washington, D.C. Dulles Intl Airport in February is currently the most expensive (average of £396). 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

Travelling 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
Silver Spring
Hanover
Oxon Hill
Woodbridge
Arlington
Alexandria
College Park

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