Find flights
Deals
When to book
FAQs

Cheap flights from Brussels Bruxelles-National Airport to Washington, D.C. Dulles Intl Airport from £343

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 8/9. Fares are subject to change and may not be available on all flights or dates of travel.
BRU — IAD
4 Jun — 11 Jun1
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 Wednesday 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 5 May 2026.

Wed 25/1118:55
BRU
-
IAD
1 stop25h 45m
ITA Airways
Sun 29/1116:45
IAD
-
BRU
1 stop19h 15m
ITA Airways
Deal found 30/4£476
Wed 12/818:55
BRU
-
IAD
1 stop25h 35m
ITA Airways
Mon 31/816:30
IAD
-
BRU
1 stop12h 15m
ITA Airways
Deal found 1/5£511
Mon 10/818:55
BRU
-
IAD
1 stop25h 35m
ITA Airways
Mon 7/916:30
IAD
-
BRU
1 stop13h 55m
ITA Airways
Deal found 3/5£512
Mon 10/818:55
BRU
-
IAD
1 stop25h 35m
ITA Airways
Sun 6/916:30
IAD
-
BRU
2 stops34h 05m
ITA Airways
Deal found 3/5£524
Fri 16/1015:55
BRU
-
IAD
1 stop29h 15m
TAP AIR PORTUGAL
Sat 31/1018:25
IAD
-
BRU
1 stop24h 25m
TAP AIR PORTUGAL
Deal found 1/5£535
Fri 16/1013:50
BRU
-
IAD
1 stop11h 30m
Icelandair
Sat 31/1020:40
IAD
-
BRU
1 stop10h 15m
Icelandair
Deal found 1/5£536

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 May 2026.

Round-trip from

£489

One-way from

£343

Popular in

December

Cheapest in

February

Average price

£483
ITA Airways
  • ITA Airways
  • 11/9-29/9
  • 3 total stops
  • 59h 40m total
  • Brussels to Washington, D.C.
Search Deals
8/9
  • 8/9
  • 1 total stop
  • 11h 05m total
  • Brussels to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (£7 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 May 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 5 May 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

10:30-16:05

1 stop11h 35m

Washington, D.C. Dulles Intl

Wed 16/9

17:45-07:15

Nonstop7h 30m

£564

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Wed 21/10

06:20-13:35

1 stop13h 15m

Washington, D.C. Dulles Intl

Fri 30/10

18:45-07:15

Nonstop7h 30m

£565

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Sun 16/8

06:20-15:15

1 stop14h 55m

Washington, D.C. Dulles Intl

Tue 25/8

18:30-13:15

1 stop12h 45m

£565

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Mon 6/7

06:20-15:15

1 stop14h 55m

Washington, D.C. Dulles Intl

Sun 12/7

17:40-07:15

Nonstop7h 35m

£566
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

Tue 15/9

17:45-07:15

Nonstop7h 30m

£570

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Sat 16/5

12:00-14:20

Nonstop8h 20m

Washington, D.C. Dulles Intl

Fri 29/5

17:40-07:15

Nonstop7h 35m

£572

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Thu 21/5

06:20-18:53

2 stops18h 33m

Washington, D.C. Dulles Intl

Fri 5/6

10:11-07:40

1 stop15h 29m

£575

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Sat 16/5

08:05-16:31

2 stops14h 26m

Washington, D.C. Dulles Intl

Fri 29/5

12:37-07:40

1 stop13h 03m

£577

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Mon 18/5

06:20-16:31

2 stops16h 11m

Washington, D.C. Dulles Intl

Sun 31/5

17:40-09:40

1 stop10h 00m

£577

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Fri 14/8

09:40-21:09

2 stops17h 29m

Washington, D.C. Dulles Intl

Tue 25/8

12:35-13:15

2 stops18h 40m

£577

Flights are sorted by cheapest return flights first.

Deals found on 3/5

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3

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 £433). Flying from Brussels Bruxelles-National Airport to Washington, D.C. Dulles Intl Airport in December is currently the most expensive (average of £547). 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 May 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, Lufthansa 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 (67%), Air Canada (66%) or Austrian Airlines (66%) 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 £433). Flying from Brussels Bruxelles-National Airport to Washington, D.C. Dulles Intl Airport in December is currently the most expensive (average of £547). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Bruxelles-National to Dulles Intl?

Cheapflights helps you search for flights from Bruxelles-National to Dulles Intl via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Bruxelles-National to Dulles Intl?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Bruxelles-National to Dulles Intl.

Can Cheapflights find flights from Bruxelles-National to Dulles Intl with no change fees?

Yes! Cheapflights helps users easily find flights from Bruxelles-National to Dulles Intl with no change fees.

Can Cheapflights notify me if prices for flights from Bruxelles-National to Dulles Intl become cheaper?

Of course! You can now track prices for flights from Bruxelles-National to Dulles Intl and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.