Cheap Flights from Washington Dulles (IAD) to Brussels International (BRU)

Compare Washington Dulles to Brussels International flight deals

Find the cheapest month or even day of the year to fly to Brussels International

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Flight deals from Washington Dulles Airport to Brussels International Airport

Looking for a cheap last-minute deal or the best return flight from Washington Dulles Airport to Brussels International Airport? If you want to travel next month, return fares start from 387 €. Find the lowest prices on one-way and return tickets right here.
Map with a flight path from Washington Dulles to Brussels International. A plane icon is halfway along the route with a label that says "Direct flight".
Direct flight

Your route at a glance

Cheapest deal368 €
Cheapest monthMarch
Average flight duration7 hours and 37 minutes
Most popular airlineUnited

Find the cheapest month to fly from Washington Dulles to Brussels International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Washington Dulles to Brussels International flights are currently cheapest in March.

Direct flights from Washington Dulles to Brussels International

Washington Dulles to Brussels International: Alternative routes

Compare routes from Washington Dulles to Brussels below. You may find an airport to fly into that's cheaper, faster, or easier than Brussels International.

Finding cheap flights from Washington Dulles to Brussels International: Frequently asked questions

The best price we found for a return flight from Washington Dulles to Brussels International is 368 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
7 hours and 37 minutes is the average flight time from Washington Dulles to Brussels International.
United, Brussels Airlines and Air Canada fly direct from Washington Dulles to Brussels International.
As of December 2025, there are 54 flights per week flying from Washington Dulles to Brussels International.
The cheapest month to fly from Washington Dulles to Brussels International is usually March.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Washington Dulles Airport to Brussels International Airport on Monday, 16 March 2026.
Yes – the average flight time is 7 hours and 37 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Brussels International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Brussels is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Scandinavian Airlines and Brussels Airlines offer the cheapest flight tickets to Brussels International.

Flying from Washington Dulles International Airport (IAD) to Brussels Airport (BRU): what you need to know

  • Around 7 hours 40 minutes is how long you can expect to be in the air on a direct flight from Washington Dulles International Airport to Brussels Airport.

  • Brussels is five hours ahead of Washington DC and is in the UTC+1 timezone.

  • Each week, there are 15 Washington Dulles International Airport to Brussels Airport flights. If you want to take off as soon as possible, pick the 17:35 United Airlines flight. If you'd rather make the most of your day before you fly, the last flight is at 18:50 with United Airlines.

  • For a stress-free journey, arrive at the airport two hours ahead of international flights and one hour before domestic departures. This ensures you have enough time to board your IAD to BRU flight.

  • Be prepared for longer queues in popular months such as April. Arriving up to four hours in advance for international flights and two hours for a domestic departure will help ensure a smooth travel experience.

  • Brussels Airlines is your gateway to discovering Brussels (and perhaps some other exciting corners of Belgium!). Check out the direct flights from Washington Dulles International Airport to Brussels Airport offered by this carrier.

  • Brussels Airlines is the top choice for travellers on this route.

  • Among carriers operating IAD to BRU flights, Brussels Airlines is the most consistent for on-time landings.

  • If you'd like to explore another city along the way, just deselect 'Direct flights only' when searching for your ticket from Washington Dulles International Airport to Brussels Airport. These are the top stopovers between IAD and BRU:

    • London Heathrow Airport

    • Amsterdam Airport Schiphol

    • Pearson International Airport

How to find the cheapest flights from Washington Dulles International Airport (IAD) to Brussels Airport (BRU)

  • 217 € is currently the best price for a one-way Washington Dulles International Airport to Brussels Airport flight. Return flights start at 368 €. These prices may change based on availability.

  • Score cheap tickets from IAD to BRU by booking at least ten months ahead. According to our research, that's the sweet spot for picking up a bargain.

  • September is the cheapest month for flights from Washington Dulles International Airport to Brussels Airport. If you want to fly at a different time of year, the 'Whole month' tool will give you the lowest airfares for each month.

  • Picking up cheap flights from IAD to BRU is a piece of cake with Price Alerts. Simply set up one of these automatic alerts and we'll let you know as soon as there's a better deal.

  • Tailor your flights using filters. Choose your ideal departure and arrival times, total journey duration and airlines. You can also sort results by 'Best,' 'Fastest' or 'Cheapest' flights from Washington Dulles International Airport to Brussels Airport.

Handy information about Washington Dulles International Airport (IAD)

  • IAD is located at 1 Saarinen Circle.

  • 74.39% of flights leaving from Washington Dulles International Airport touch down at their destination on time.

  • Washington Dulles International Airport is around 35 miles from central Washington DC. If you're ride-sharing, catching a cab or driving from the centre, it'll take you 50 minutes or so to get there, depending on the traffic.

  • Expect a journey time of about 3 hours 25 minutes when using public transport.

  • Need a convenient hotel close to IAD? If you've booked an early flight from Washington Dulles International Airport to Brussels Airport, these accommodation options will have you moments from your departure gate:

Arriving at Brussels Airport (BRU)

  • If you're getting in on a late Washington Dulles International Airport to Brussels Airport flight, nothing beats the convenience of staying near the terminal. Pick up your bags from the carousel and then be resting soon after at one of these options near BRU:

  • Explore without limits with a Brussels Airport rental car. Pick up a set of wheels from Keddy By Europcar, Alamo or Europcar and chase adventure across Brussels and beyond.

  • To get the best deal, reserve your vehicle from Brussels Airport about three weeks before your trip.

Getting from Brussels Airport (BRU) to central Brussels

  • Brussels Airport to the centre of Brussels has a drive time of about 20 minutes. It's approximately 9 miles away.

  • It takes around 40 minutes if you're using public transport.

When to fly to Brussels Airport (BRU)

  • The quietest month for a flight from Washington Dulles International Airport to Brussels Airport is January, while July is the busiest. Choose the best time to visit Brussels based on whether you prefer a more fast-paced or easygoing experience.

  • The warmest month in Brussels is August, with the temperature ranging between 12ºC (54ºF) and 27ºC (81ºF). Book your flights from Washington Dulles International Airport to Brussels Airport in this month if this is the kind of weather you like.

  • If you like cooler conditions, search for a cheap ticket from IAD to BRU in January. Average temperatures are between -2ºC (28ºF) and 8ºC (46ºF) then.

Explore more of Belgium

  • You've visited Brussels, now it's time to explore other parts of Belgium. Journey about 30 miles south to Charleroi to check off its leading sights. From Parc Gobbe to Maison Dermine (art déco — 1921) and Parc Ligny, you'll have a full itinerary ahead.

  • Around 55 miles east of Brussels, Liege is another favourite stop in Belgium. No visit is complete without checking out Gare de Liege-Guillemins, Curtius Museum and Montagne de Bueren.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.