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Cheap flights from Brussels Bruxelles-National Airport to Washington, D.C. Dulles Intl Airport from £278

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 1/3. Fares are subject to change and may not be available on all flights or dates of travel.
BRU — IAD
14 Nov — 21 Nov1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from Brussels Bruxelles-National to Washington, D.C. Dulles Intl are usually found in May or January, booked 51 days in advance, depart on a Friday or Thursday and return on a Tuesday

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 15 October 2025.

Round-trip from

£386

One-way from

£278

Popular in

December

Cheapest in

May

Average price

£466
Scandinavian Airlines
  • Scandinavian Airlines
  • 12/3-16/3
  • 2 total stops
  • 24h 55m total
  • Brussels to Washington, D.C.
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1/3
  • 1/3
  • 1 total stop
  • 24h 00m total
  • Brussels to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 0% potential increase in price (£1 potential increase over avg. return price).
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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 October 2025
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Find 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 15 October 2025.

Sun 14/1220:30BRU - IAD
1 stop26h 45mScandinavian Airlines
Mon 12/120:30IAD - BRU
1 stop31h 10mScandinavian Airlines
Deal found 14/10£433
Sun 9/1117:55BRU - IAD
1 stop27h 20mTAP AIR PORTUGAL
Sat 15/1117:30IAD - BRU
1 stop11h 30mTAP AIR PORTUGAL
Deal found 14/10£445
Sun 14/1211:50BRU - IAD
1 stop15h 10mTAP AIR PORTUGAL
Thu 8/117:30IAD - BRU
1 stop17h 35mTAP AIR PORTUGAL
Deal found 14/10£448
Thu 25/1206:00BRU - IAD
1 stop15h 15mTAP AIR PORTUGAL
Tue 30/1217:30IAD - BRU
1 stop24h 20mTAP AIR PORTUGAL
Deal found 13/10£449
Mon 15/1210:20BRU - IAD
1 stop12h 55mScandinavian Airlines
Mon 12/120:30IAD - BRU
2 stops16h 10mScandinavian Airlines
Deal found 14/10£451
Thu 30/1010:45BRU - IAD
1 stop11h 20mDelta
Wed 12/1112:11IAD - BRU
1 stop14h 49mDelta
Deal found 14/10£454
Thu 30/1008:05BRU - IAD
1 stop14h 00mKLM
Wed 12/1112:37IAD - BRU
2 stops12h 58mKLM
Deal found 14/10£455
Sat 8/1111:00BRU - IAD
1 stop14h 18mDelta
Sat 15/1112:11IAD - BRU
2 stops13h 24mDelta
Deal found 15/10£458

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 15 October 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

Thu 12/3

10:20-18:15

1 stop12h 55m

Washington, D.C. Dulles Intl

Mon 16/3

21:30-18:35

1 stop16h 05m

£394

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Tue 10/3

19:20-18:15

2 stops27h 55m

Washington, D.C. Dulles Intl

Thu 19/3

21:30-18:40

2 stops16h 10m

£410

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Sun 9/11

17:55-15:15

1 stop27h 20m

Washington, D.C. Dulles Intl

Sat 15/11

17:30-11:00

1 stop11h 30m

£445

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Sun 14/12

06:00-21:00

1 stop21h 00m

Washington, D.C. Dulles Intl

Fri 9/1

22:30-17:05

1 stop12h 35m

£448

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Sun 14/12

11:50-21:00

1 stop15h 10m

Washington, D.C. Dulles Intl

Thu 8/1

17:30-17:05

1 stop17h 35m

£448

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Mon 15/12

06:00-15:15

1 stop15h 15m

Washington, D.C. Dulles Intl

Sun 11/1

22:30-23:50

1 stop19h 20m

£448

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Sun 14/12

06:00-21:00

1 stop21h 00m

Washington, D.C. Dulles Intl

Sun 11/1

22:30-17:05

1 stop12h 35m

£448

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Mon 15/12

06:00-15:15

1 stop15h 15m

Washington, D.C. Dulles Intl

Thu 8/1

17:30-17:05

1 stop17h 35m

£448

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Mon 15/12

10:20-17:15

1 stop12h 55m

Washington, D.C. Dulles Intl

Mon 12/1

20:30-18:40

2 stops16h 10m

£451

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Fri 7/11

06:15-16:05

1 stop15h 50m

Washington, D.C. Dulles Intl

Sun 9/11

12:11-09:00

1 stop14h 49m

£454

Flights are sorted by cheapest return flights first.

Deals found on 14/10

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 10 October 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 £315). Flying from Brussels Bruxelles-National Airport to Washington, D.C. Dulles Intl Airport in February is currently the most expensive (average of £397). 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 15 October 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 £394, Scandinavian Airlines can have you in Washington, D.C. Dulles Intl Airport from Brussels Bruxelles-National Airport in 12h 55m. Brussels Bruxelles-National Airport and Washington, D.C. Dulles Intl Airport are separated by a distance of 3879 mi.

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

    Consider Air Canada (84%), Austrian Airlines (84%) or SWISS (84%) when booking your flight. These represent the most reliable airlines when flying from Brussels Bruxelles-National Airport to Washington, D.C. Dulles Intl Airport.

  • 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 £315). Flying from Brussels Bruxelles-National Airport to Washington, D.C. Dulles Intl Airport in February is currently the most expensive (average of £397). 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
Tysons

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