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Cheap flights from Brussels Bruxelles-National Airport to Washington, D.C. Dulles Intl Airport from £350

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 24/8. Fares are subject to change and may not be available on all flights or dates of travel.
BRU — IAD
27 Apr — 4 May1
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 February or May, booked 51 days in advance, depart on a Thursday or Wednesday and return on a Monday

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 28 March 2026.

Wed 20/505:45
BRU
-
IAD
1 stop17h 15m
Scandinavian Airlines
Wed 27/520:20
IAD
-
BRU
1 stop17h 30m
Scandinavian Airlines
Deal found 24/3£485
Fri 16/1010:20
BRU
-
IAD
1 stop12h 40m
Scandinavian Airlines
Sat 31/1021:30
IAD
-
BRU
1 stop12h 00m
Scandinavian Airlines
Deal found 24/3£498
Wed 8/420:30
BRU
-
IAD
1 stop26h 30m
Scandinavian Airlines
Mon 4/520:20
IAD
-
BRU
1 stop20h 40m
Scandinavian Airlines
Deal found 25/3£507
Wed 22/718:55
BRU
-
IAD
1 stop25h 35m
ITA Airways
Mon 31/816:30
IAD
-
BRU
1 stop12h 15m
ITA Airways
Deal found 28/3£513
Thu 9/418:55
BRU
-
IAD
1 stop25h 35m
ITA Airways
Tue 5/516:30
IAD
-
BRU
1 stop19h 30m
ITA Airways
Deal found 26/3£516

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 28 March 2026.

Round-trip from

£485

One-way from

£350

Popular in

December

Cheapest in

February

Average price

£480
Scandinavian Airlines
  • Scandinavian Airlines
  • 20/5-27/5
  • 2 total stops
  • 34h 45m total
  • Brussels to Washington, D.C.
Search Deals
British Airways
  • British Airways
  • 27/8
  • 1 total stop
  • 26h 10m total
  • Brussels to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (£12 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£5 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

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 28 March 2026.
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

Fly to

Route

Depart

Return

Price

Cheapest return flight

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Thu 21/5

13:50-19:20

1 stop11h 30m

Washington, D.C. Dulles Intl

Mon 25/5

20:30-12:55

1 stop10h 25m

£549

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Tue 7/4

09:30-19:55

1 stop16h 25m

Washington, D.C. Dulles Intl

Tue 28/4

22:10-20:00

1 stop15h 50m

£550

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Thu 9/4

09:30-15:05

1 stop11h 35m

Washington, D.C. Dulles Intl

Wed 22/4

17:30-07:15

Nonstop7h 45m

£552

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Wed 8/4

10:30-19:55

1 stop15h 25m

Washington, D.C. Dulles Intl

Thu 30/4

17:30-07:15

Nonstop7h 45m

£552

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Sat 23/5

09:30-15:15

1 stop11h 45m

Washington, D.C. Dulles Intl

Sat 6/6

06:33-07:10

2 stops18h 37m

£554
Fastest return journey

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Wed 20/5

12:00-14:20

Nonstop8h 20m

Washington, D.C. Dulles Intl

Wed 27/5

17:40-07:15

Nonstop7h 35m

£557

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Sat 9/5

08:05-15:35

1 stop13h 30m

Washington, D.C. Dulles Intl

Sat 23/5

19:33-14:40

2 stops13h 07m

£558

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Sat 18/4

06:20-15:35

1 stop15h 15m

Washington, D.C. Dulles Intl

Sat 2/5

17:40-14:40

1 stop15h 00m

£558

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Sat 11/4

06:45-15:00

1 stop14h 15m

Washington, D.C. Dulles Intl

Tue 28/4

17:35-07:25

Nonstop7h 50m

£560
Cheapest one-way

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Mon 24/8

20:50-19:40

1 stop28h 50m

£350

Flights are sorted by cheapest return flights first.

Deals found on 28/3

Showing 1-10 of 20 resultsSorted by cheapest first
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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 13 March 2026.

The best time to book flights from Brussels Bruxelles-National Airport to Washington, D.C. Dulles Intl Airport is 50 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, February 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 £328). Flying from Brussels Bruxelles-National Airport to Washington, D.C. Dulles Intl Airport in December is currently the most expensive (average of £419). 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 28 March 2026.

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 £549, Scandinavian Airlines can have you in Washington, D.C. Dulles Intl Airport from Brussels Bruxelles-National Airport in 11h 30m. Brussels Bruxelles-National Airport and Washington, D.C. Dulles Intl Airport are separated by a distance of 3879 mi. This flight may include one or multiple stops.

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

    Consider Lufthansa (88%), Air Canada (87%) or Austrian Airlines (87%) 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, February 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 £328). Flying from Brussels Bruxelles-National Airport to Washington, D.C. Dulles Intl Airport in December is currently the most expensive (average of £419). 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
Gaithersburg
Woodbridge
Arlington
Alexandria
Sterling

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