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Cheap flights from Brussels Bruxelles-National Airport to Washington, D.C. Dulles Intl Airport from £246

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 25/5. Fares are subject to change and may not be available on all flights or dates of travel.
BRU — IAD
23 Feb — 2 Mar1
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 June, 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 24 January 2026.

Wed 28/111:50
BRU
-
IAD
1 stop33h 25m
TAP AIR PORTUGAL
Sun 1/222:30
IAD
-
BRU
1 stop12h 35m
TAP AIR PORTUGAL
Deal found 24/1£415
Fri 27/211:55
BRU
-
IAD
Nonstop8h 40m
Multiple Airlines
Wed 4/317:45
IAD
-
BRU
Nonstop7h 30m
Multiple Airlines
Deal found 22/1£419
Fri 28/810:45
BRU
-
IAD
1 stop15h 35m
Multiple Airlines
Wed 30/917:40
IAD
-
BRU
2 stops22h 55m
Multiple Airlines
Deal found 22/1£421
Mon 20/406:20
BRU
-
IAD
1 stop15h 15m
Delta
Mon 27/413:19
IAD
-
BRU
2 stops14h 21m
Delta
Deal found 22/1£422
Tue 24/210:45
BRU
-
IAD
1 stop11h 20m
Multiple Airlines
Mon 16/315:35
IAD
-
BRU
1 stop11h 25m
Multiple Airlines
Deal found 23/1£423
Wed 25/210:25
BRU
-
IAD
1 stop15h 30m
British Airways
Thu 19/319:20
IAD
-
BRU
1 stop10h 30m
British Airways
Deal found 23/1£424
Mon 9/310:45
BRU
-
IAD
1 stop11h 20m
Delta
Mon 16/319:59
IAD
-
BRU
2 stops13h 16m
Delta
Deal found 23/1£424
Fri 24/417:00
BRU
-
IAD
1 stop33h 20m
British Airways
Sat 9/522:25
IAD
-
BRU
1 stop29h 30m
British Airways
Deal found 24/1£425
Fri 6/1110:30
BRU
-
IAD
1 stop11h 20m
United Airlines
Mon 9/1117:45
IAD
-
BRU
Nonstop7h 30m
United Airlines
Deal found 21/1£426
Wed 25/210:30
BRU
-
IAD
1 stop11h 20m
United Airlines
Wed 18/318:45
IAD
-
BRU
Nonstop7h 30m
United Airlines
Deal found 23/1£427
Sat 18/410:30
BRU
-
IAD
1 stop11h 35m
United Airlines
Sat 2/515:15
IAD
-
BRU
2 stops16h 00m
United Airlines
Deal found 24/1£427
Sat 31/107:00
BRU
-
IAD
1 stop13h 35m
United Airlines
Mon 27/417:41
IAD
-
BRU
2 stops13h 34m
United Airlines
Deal found 24/1£428

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 24 January 2026.

Round-trip from

£419

One-way from

£246

Popular in

December

Cheapest in

May

Average price

£481

Good round-trip deal

£624 or less
Brussels Airlines
  • Brussels Airlines
  • 9/3-16/3
  • 1 total stop
  • 19h 20m total
  • Brussels to Washington, D.C.
Search Deals
25/5
  • 25/5
  • 1 total stop
  • 15h 30m total
  • Brussels to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (£16 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 January 2026
Search Deals
Price to beat on a round-trip flight from Brussels Bruxelles-National to Washington, D.C. Dulles Intl.
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 24 January 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

Bruxelles-National

Fly to

Dulles Intl

Route

Depart

Return

Price

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Fri 24/4

17:00-20:20

1 stop33h 20m

Washington, D.C. Dulles Intl

Sat 9/5

17:40-09:50

1 stop10h 10m

£423

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Wed 25/2

10:45-16:05

1 stop11h 20m

Washington, D.C. Dulles Intl

Sun 15/3

15:35-08:00

1 stop11h 25m

£423

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Wed 25/2

10:45-16:05

1 stop11h 20m

Washington, D.C. Dulles Intl

Mon 16/3

15:35-08:00

1 stop11h 25m

£423

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Wed 25/2

10:25-19:55

1 stop15h 30m

Washington, D.C. Dulles Intl

Sat 14/3

19:20-10:30

1 stop10h 10m

£424

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Wed 25/2

14:35-19:55

1 stop11h 20m

Washington, D.C. Dulles Intl

Wed 18/3

19:20-13:50

1 stop13h 30m

£424

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Tue 24/2

17:30-15:35

1 stop28h 05m

Washington, D.C. Dulles Intl

Sat 14/3

19:20-10:30

1 stop10h 10m

£424

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Wed 25/2

10:25-15:35

1 stop11h 10m

Washington, D.C. Dulles Intl

Mon 16/3

19:20-13:55

1 stop13h 35m

£424

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Tue 24/2

17:30-15:35

1 stop28h 05m

Washington, D.C. Dulles Intl

Fri 20/3

19:20-13:40

1 stop13h 20m

£424

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Wed 25/2

11:50-19:55

1 stop14h 05m

Washington, D.C. Dulles Intl

Tue 17/3

22:45-17:05

1 stop13h 20m

£424

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Tue 24/2

12:00-19:55

1 stop13h 55m

Washington, D.C. Dulles Intl

Wed 18/3

22:45-13:50

1 stop10h 05m

£424

Flights are sorted by cheapest return flights first.

Deals found on 22/1

Showing 1-10 of 20 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 16 January 2026.

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, May 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 £307). Flying from Brussels Bruxelles-National Airport to Washington, D.C. Dulles Intl Airport in December is currently the most expensive (average of £411). 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 24 January 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 £423, British Airways can have you in Washington, D.C. Dulles Intl Airport from Brussels Bruxelles-National Airport in 33h 20m. 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 SWISS (74%), Lufthansa (73%) or Air Canada (72%) 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 £660, our data indicates the cheapest price to be £547. The most popular route (Brussels Bruxelles-National - Washington, D.C. Dulles Intl), is priced around £489.

  • 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, May 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 £307). Flying from Brussels Bruxelles-National Airport to Washington, D.C. Dulles Intl Airport in December is currently the most expensive (average of £411). 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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