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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 6/12. Fares are subject to change and may not be available on all flights or dates of travel.
BRU — IAD
26 Jul — 2 Aug1
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 November, booked 51 days in advance, depart on a Tuesday or Thursday 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 26 June 2026.

Sun 20/906:20
BRU
-
IAD
1 stop15h 15m
Delta
Wed 30/912:25
IAD
-
BRU
2 stops13h 10m
Delta
Deal found 25/6£533
Sat 3/1006:20
BRU
-
IAD
1 stop15h 15m
Delta
Sat 10/1012:30
IAD
-
BRU
2 stops13h 05m
Delta
Deal found 24/6£535
Thu 24/910:25
BRU
-
IAD
1 stop11h 10m
Delta
Thu 5/1119:59
IAD
-
BRU
2 stops12h 16m
Delta
Deal found 22/6£537
Fri 28/818:55
BRU
-
IAD
2 stops28h 05m
Scandinavian Airlines
Wed 2/920:20
IAD
-
BRU
2 stops18h 10m
Scandinavian Airlines
Deal found 25/6£538
Wed 16/908:05
BRU
-
IAD
2 stops15h 07m
Delta
Thu 24/912:25
IAD
-
BRU
2 stops15h 15m
Delta
Deal found 24/6£539
Sun 5/720:15
BRU
-
IAD
2 stops24h 15m
ITA Airways
Sat 18/716:30
IAD
-
BRU
2 stops34h 05m
ITA Airways
Deal found 22/6£540
Wed 26/815:15
BRU
-
IAD
1 stop31h 45m
Scandinavian Airlines
Wed 2/920:20
IAD
-
BRU
1 stop20h 40m
Scandinavian Airlines
Deal found 22/6£543
Thu 9/706:20
BRU
-
IAD
1 stop14h 55m
Lufthansa
Wed 22/717:40
IAD
-
BRU
Nonstop7h 35m
Lufthansa
Deal found 25/6£544
Fri 11/918:55
BRU
-
IAD
1 stop25h 35m
ITA Airways
Sun 13/916:30
IAD
-
BRU
1 stop12h 15m
ITA Airways
Deal found 26/6£546
Tue 8/913:50
BRU
-
IAD
1 stop14h 25m
Icelandair
Tue 15/920:30
IAD
-
BRU
1 stop10h 25m
Icelandair
Deal found 26/6£547

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 26 June 2026.

Round-trip from

£533

One-way from

£350

Popular in

May

Cheapest in

February

Average price

£581
Delta
  • Delta
  • 20/9-30/9
  • 3 total stops
  • 28h 25m total
  • Brussels to Washington, D.C.
Search Deals
British Airways
  • British Airways
  • 6/12
  • 1 total stop
  • 24h 00m total
  • Brussels to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£40 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 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 26 June 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

Sun 20/9

06:20-15:35

1 stop15h 15m

Washington, D.C. Dulles Intl

Wed 30/9

12:25-07:35

2 stops13h 10m

£533

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Fri 28/8

18:55-17:00

2 stops28h 05m

Washington, D.C. Dulles Intl

Wed 2/9

20:20-20:30

2 stops18h 10m

£538

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Mon 10/8

18:55-14:30

1 stop25h 35m

Washington, D.C. Dulles Intl

Mon 17/8

16:30-10:45

1 stop12h 15m

£549

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Fri 16/10

15:55-15:10

1 stop29h 15m

Washington, D.C. Dulles Intl

Fri 30/10

23:30-23:50

1 stop19h 20m

£556

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Mon 7/9

14:25-20:00

1 stop11h 35m

Washington, D.C. Dulles Intl

Mon 14/9

15:40-09:00

1 stop11h 20m

£564
Fastest return journey

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Fri 16/10

14:25-20:00

1 stop11h 35m

Washington, D.C. Dulles Intl

Fri 30/10

18:45-07:15

Nonstop7h 30m

£566

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Wed 21/10

10:30-16:05

1 stop11h 35m

Washington, D.C. Dulles Intl

Fri 30/10

18:45-07:15

Nonstop7h 30m

£568

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Fri 7/8

10:30-16:05

1 stop11h 35m

Washington, D.C. Dulles Intl

Thu 20/8

15:40-13:15

2 stops15h 35m

£569

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Sat 25/7

14:25-20:00

1 stop11h 35m

Washington, D.C. Dulles Intl

Fri 31/7

17:40-07:15

Nonstop7h 35m

£569

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Sat 15/8

10:45-13:30

Nonstop8h 45m

Washington, D.C. Dulles Intl

Sat 29/8

22:15-20:00

1 stop15h 45m

£571

Flights are sorted by cheapest return flights first.

Deals found on 25/6

Showing 1-10 of 22 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?

The best time to book flights from Brussels Bruxelles-National Airport to Washington, D.C. Dulles Intl Airport is 49 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 £445). Flying from Brussels Bruxelles-National Airport to Washington, D.C. Dulles Intl Airport in May is currently the most expensive (average of £614). 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 26 June 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 £564, Delta can have you in Washington, D.C. Dulles Intl Airport from Brussels Bruxelles-National Airport in 11h 35m. 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 (85%), Brussels Airlines (84%) or United Airlines (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, 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 £445). Flying from Brussels Bruxelles-National Airport to Washington, D.C. Dulles Intl Airport in May is currently the most expensive (average of £614). 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
Oxon Hill
Gaithersburg
Hanover
Woodbridge
Alexandria
Sterling

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