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Cheap Flights from Washington D.C. (IAD) to Brussels (BRU)

Compare Washington Dulles to Brussels International flight deals

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

Book the best Brussels International fare with no extra fees

Flight deals from Washington Dulles to Brussels International

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 $993. Find the lowest prices on one-way and return tickets right here.
Brussels.$705 per passenger.Departing Sat, 28 Nov, returning Tue, 8 Dec.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Washington Dulles on Sat, 28 Nov, arriving in Brussels International.Inbound indirect flight with Icelandair, departs from Brussels International on Tue, 8 Dec, arriving in Washington Dulles.Price includes taxes and charges.From $705, select.
Brussels.$706 per passenger.Departing Wed, 14 Oct, returning Mon, 19 Oct.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Washington Dulles on Wed, 14 Oct, arriving in Brussels International.Inbound indirect flight with Icelandair, departs from Brussels International on Mon, 19 Oct, arriving in Washington Dulles.Price includes taxes and charges.From $706, select.
Brussels.$714 per passenger.Departing Sat, 26 Sep, returning Fri, 16 Oct.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Washington Dulles on Sat, 26 Sep, arriving in Brussels International.Inbound indirect flight with Icelandair, departs from Brussels International on Fri, 16 Oct, arriving in Washington Dulles.Price includes taxes and charges.From $714, select.
Brussels.$766 per passenger.Departing Mon, 9 Nov, returning Tue, 17 Nov.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Washington Dulles on Mon, 9 Nov, arriving in Brussels International.Inbound indirect flight with Icelandair, departs from Brussels International on Tue, 17 Nov, arriving in Washington Dulles.Price includes taxes and charges.From $766, select.
Brussels.$775 per passenger.Departing Wed, 2 Dec, returning Sun, 6 Dec.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Washington Dulles on Wed, 2 Dec, arriving in Brussels International.Inbound indirect flight with Icelandair, departs from Brussels International on Sun, 6 Dec, arriving in Washington Dulles.Price includes taxes and charges.From $775, select.
Brussels.$849 per passenger.Departing Mon, 8 Feb, returning Thu, 18 Feb.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Washington Dulles on Mon, 8 Feb, arriving in Brussels International.Inbound indirect flight with Icelandair, departs from Brussels International on Thu, 18 Feb, arriving in Washington Dulles.Price includes taxes and charges.From $849, select.
Brussels.$875 per passenger.Departing Wed, 28 Oct, returning Thu, 5 Nov.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Washington Dulles on Wed, 28 Oct, arriving in Brussels International.Inbound indirect flight with Icelandair, departs from Brussels International on Thu, 5 Nov, arriving in Washington Dulles.Price includes taxes and charges.From $875, select.
Brussels.$940 per passenger.Departing Wed, 23 Sep, returning Wed, 30 Sep.Return flight with TAP Air Portugal and Ryanair.Outbound indirect flight with TAP Air Portugal, departs from Washington Dulles on Wed, 23 Sep, arriving in Brussels International.Inbound indirect flight with Ryanair, departs from Brussels International on Wed, 30 Sep, arriving in Washington Dulles.Price includes taxes and charges.From $940, select.
Brussels.$948 per passenger.Departing Tue, 18 Aug, returning Fri, 18 Dec.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Washington Dulles on Tue, 18 Aug, arriving in Brussels International.Inbound indirect flight with Icelandair, departs from Brussels International on Fri, 18 Dec, arriving in Washington Dulles.Price includes taxes and charges.From $948, select.
Brussels.$988 per passenger.Departing Sun, 16 Aug, returning Wed, 4 Nov.Return flight with Scandinavian Airlines.Outbound indirect flight with Scandinavian Airlines, departs from Washington Dulles on Sun, 16 Aug, arriving in Brussels International.Inbound indirect flight with Scandinavian Airlines, departs from Brussels International on Wed, 4 Nov, arriving in Washington Dulles.Price includes taxes and charges.From $988, select.
Brussels.$993 per passenger.Departing Fri, 21 Aug, returning Sun, 30 Aug.Return flight with Scandinavian Airlines.Outbound indirect flight with Scandinavian Airlines, departs from Washington Dulles on Fri, 21 Aug, arriving in Brussels International.Inbound indirect flight with Scandinavian Airlines, departs from Brussels International on Sun, 30 Aug, arriving in Washington Dulles.Price includes taxes and charges.From $993, select.
Brussels.$998 per passenger.Departing Wed, 10 Mar, returning Wed, 17 Mar.Return flight with TAP Air Portugal.Outbound indirect flight with TAP Air Portugal, departs from Washington Dulles on Wed, 10 Mar, arriving in Brussels International.Inbound indirect flight with TAP Air Portugal, departs from Brussels International on Wed, 17 Mar, arriving in Washington Dulles.Price includes taxes and charges.From $998, select.
Brussels.$1,000 per passenger.Departing Mon, 31 Aug, returning Mon, 7 Sep.Return flight with TAP Air Portugal.Outbound indirect flight with TAP Air Portugal, departs from Washington Dulles on Mon, 31 Aug, arriving in Brussels International.Inbound indirect flight with TAP Air Portugal, departs from Brussels International on Mon, 7 Sep, arriving in Washington Dulles.Price includes taxes and charges.From $1,000, select.
Brussels.$1,002 per passenger.Departing Thu, 14 Jan, returning Thu, 21 Jan.Return flight with TAP Air Portugal.Outbound indirect flight with TAP Air Portugal, departs from Washington Dulles on Thu, 14 Jan, arriving in Brussels International.Inbound indirect flight with TAP Air Portugal, departs from Brussels International on Thu, 21 Jan, arriving in Washington Dulles.Price includes taxes and charges.From $1,002, select.
Brussels.$1,003 per passenger.Departing Tue, 23 Feb, returning Tue, 2 Mar.Return flight with TAP Air Portugal.Outbound indirect flight with TAP Air Portugal, departs from Washington Dulles on Tue, 23 Feb, arriving in Brussels International.Inbound indirect flight with TAP Air Portugal, departs from Brussels International on Tue, 2 Mar, arriving in Washington Dulles.Price includes taxes and charges.From $1,003, select.
Brussels.$1,005 per passenger.Departing Wed, 27 Jan, returning Wed, 3 Feb.Return flight with TAP Air Portugal.Outbound indirect flight with TAP Air Portugal, departs from Washington Dulles on Wed, 27 Jan, arriving in Brussels International.Inbound indirect flight with TAP Air Portugal, departs from Brussels International on Wed, 3 Feb, arriving in Washington Dulles.Price includes taxes and charges.From $1,005, select.

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 October.
Jul
from $1,893
Aug
from $993
Sep
from $940
Oct
from $706
Nov
from $766
Dec
from $775
Jan
from $1,002
Feb
from $849
Mar
from $998
Apr
from $1,021
May
from $1,160
Jun
from $1,302

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.

Brussels International

11km from central Brussels
ClosestCheapest
from $705
Search flights

Antwerp Deurne

39km from central Brussels
from $1,845
Search flights

Brussels S. Charleroi

44km from central Brussels
from $1,078
Search flights

Liege

81km from central Brussels
Search flights

Washington D.C. to Brussels: Flight information

The things to know before you go.
Cheapest flight found$705
Cheapest month to flyNovember
Average flight time7 hrs, 37 mins
Most popular airlineLufthansa
Average flights per week54

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 $705. 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.
Lufthansa, Brussels Airlines and United fly direct from Washington Dulles to Brussels International.
As of July 2026, 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 November.
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 Saturday, 28 November 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, Icelandair and United offer the cheapest flight tickets to Brussels International.

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

  • Take a direct flight from Washington Dulles Airport to Brussels International Airport and you'll be travelling for an average of 7 hours 40 minutes.

  • Brussels is six hours ahead of Washington DC and observes the UTC+1 timezone.

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

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for hassle-free flying. Be at the airport with enough time to catch your IAD to BRU flight.

  • Flying during a peak month such as July? School holidays and other popular seasons can lead to longer lines at airport checkpoints. Be extra cautious and arrive up to four hours ahead of an international flight and two hours before a domestic departure.

  • Jetting into Brussels (and then discovering more of Belgium!) is a cinch with United. This popular carrier has direct flights from Washington Dulles Airport to Brussels International Airport.

  • The airline with the highest booking volume on this route is United.

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

  • Consider adding a stopover when booking your ticket from Washington Dulles Airport to Brussels International Airport. Just uncheck 'Direct flights only' to break up your trip, or visit a new city along the way. Here's where you can stop between IAD and BRU:

    • London Heathrow Airport

    • Amsterdam Schiphol Airport

    • Toronto Pearson International Airport

Handy information about Washington Dulles Airport (IAD)

  • The address for IAD is 1 Saarinen Circle.

  • 77% of flights leaving from Washington Dulles Airport arrive at their destination on schedule.

  • Washington Dulles Airport is around 40 kilometres from central Washington DC. If you're catching a taxi, ride-sharing or driving from the centre, it'll take you 45 minutes or so to arrive, depending on the traffic.

  • Planning to take public transport? You can expect a journey time of around 1 hour 10 minutes.

  • Get your trip off to a stress-free start by staying near IAD. Whether you're boarding an early flight from Washington Dulles Airport to Brussels International Airport or want to avoid feeling rushed, these hotels are the answer:

Arriving at Brussels International Airport (BRU)

  • If you're arriving on a late Washington Dulles Airport to Brussels International Airport flight, few things top the convenience of being close to the terminal. Grab your luggage from the carousel and then be tucked up in bed shortly after at one of these hotels near BRU:

  • Fast-track your adventure by picking up a Brussels International Airport rental car. Grab your wheels from Keddy By Europcar, Alamo or Europcar and explore beyond Brussels's usual tourist stops.

  • Get the best deal by reserving your ride from Brussels International Airport about three weeks ahead of your departure.

When to fly to Brussels International Airport (BRU)

  • It's time to work out your travel dates for your flight from Washington Dulles Airport to Brussels International Airport. September is the busiest month to head to Brussels. If you like a more laid-back vibe, go in March.

  • Lock in your flight from Washington Dulles Airport to Brussels International Airport for August if you want to go to Brussels during its warmest month. Expect temperatures of between 12ºC (54ºF) and 27ºC (81ºF).

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

Explore more of Belgium

  • Charleroi is just one of the many places in Belgium waiting to be discovered once you've seen the sights of Brussels. Around 48 kilometres away to the south, popular attractions include Musée de la Photographie, BPS22, Musee d'art de la Province de Hainaut and Le Bois du Cazier.

  • Liege is another must-experience destination in Belgium and is around 88 kilometres east of Brussels. No trip is complete without experiencing Cathedral de Liege (Liege Cathedral), Parc De La Citadelle and Parc de la Chartreuse.

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Prices shown on this page are estimated lowest prices only. Found in the last 12 days.