Cheap flights from Washington Dulles to Brussels International

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Compare Washington Dulles to Brussels International flight deals

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Flight deals from Washington Dulles to Brussels International

Looking for a cheap last-minute deal or the best round-trip flight from Washington Dulles Airport to Brussels International Airport? If you want to travel next month, round-trip fares start from $670. Find the lowest prices on one-way and round-trip tickets right here.

Brussels.$539 per passenger.Departing Sat, Nov 28, returning Sun, Dec 6.Round-trip flight with Icelandair.Outbound indirect flight with Icelandair, departing from Washington Dulles on Sat, Nov 28, arriving in Brussels International.Inbound indirect flight with Icelandair, departing from Brussels International on Sun, Dec 6, arriving in Washington Dulles.Price includes taxes and charges.From $539, select.

Brussels.$539 per passenger.Departing Wed, Nov 4, returning Tue, Nov 10.Round-trip flight with Icelandair.Outbound indirect flight with Icelandair, departing from Washington Dulles on Wed, Nov 4, arriving in Brussels International.Inbound indirect flight with Icelandair, departing from Brussels International on Tue, Nov 10, arriving in Washington Dulles.Price includes taxes and charges.From $539, select.

Brussels.$540 per passenger.Departing Wed, Dec 2, returning Sun, Dec 6.Round-trip flight with Icelandair.Outbound indirect flight with Icelandair, departing from Washington Dulles on Wed, Dec 2, arriving in Brussels International.Inbound indirect flight with Icelandair, departing from Brussels International on Sun, Dec 6, arriving in Washington Dulles.Price includes taxes and charges.From $540, select.

Brussels.$544 per passenger.Departing Mon, Jan 11, returning Sun, Jan 31.Round-trip flight with Icelandair.Outbound indirect flight with Icelandair, departing from Washington Dulles on Mon, Jan 11, arriving in Brussels International.Inbound indirect flight with Icelandair, departing from Brussels International on Sun, Jan 31, arriving in Washington Dulles.Price includes taxes and charges.From $544, select.

Brussels.$545 per passenger.Departing Sat, Jan 30, returning Thu, Feb 4.Round-trip flight with Icelandair.Outbound indirect flight with Icelandair, departing from Washington Dulles on Sat, Jan 30, arriving in Brussels International.Inbound indirect flight with Icelandair, departing from Brussels International on Thu, Feb 4, arriving in Washington Dulles.Price includes taxes and charges.From $545, select.

Brussels.$547 per passenger.Departing Wed, Feb 24, returning Tue, Mar 2.Round-trip flight with Icelandair.Outbound indirect flight with Icelandair, departing from Washington Dulles on Wed, Feb 24, arriving in Brussels International.Inbound indirect flight with Icelandair, departing from Brussels International on Tue, Mar 2, arriving in Washington Dulles.Price includes taxes and charges.From $547, select.

Brussels.$608 per passenger.Departing Thu, Oct 22, returning Tue, Nov 3.Round-trip flight with Icelandair.Outbound indirect flight with Icelandair, departing from Washington Dulles on Thu, Oct 22, arriving in Brussels International.Inbound indirect flight with Icelandair, departing from Brussels International on Tue, Nov 3, arriving in Washington Dulles.Price includes taxes and charges.From $608, select.

Brussels.$670 per passenger.Departing Mon, Sep 21, returning Tue, Sep 29.Round-trip flight with TAP Air Portugal and Ryanair.Outbound indirect flight with TAP Air Portugal, departing from Washington Dulles on Mon, Sep 21, arriving in Brussels International.Inbound indirect flight with Ryanair, departing from Brussels International on Tue, Sep 29, arriving in Washington Dulles.Price includes taxes and charges.From $670, select.

Brussels.$673 per passenger.Departing Thu, Oct 15, returning Sat, Oct 24.Round-trip flight with Icelandair.Outbound indirect flight with Icelandair, departing from Washington Dulles on Thu, Oct 15, arriving in Brussels International.Inbound indirect flight with Icelandair, departing from Brussels International on Sat, Oct 24, arriving in Washington Dulles.Price includes taxes and charges.From $673, select.

Brussels.$682 per passenger.Departing Tue, Sep 22, returning Fri, Oct 9.Round-trip flight with Icelandair.Outbound indirect flight with Icelandair, departing from Washington Dulles on Tue, Sep 22, arriving in Brussels International.Inbound indirect flight with Icelandair, departing from Brussels International on Fri, Oct 9, arriving in Washington Dulles.Price includes taxes and charges.From $682, select.

Brussels.$705 per passenger.Departing Mon, Aug 31, returning Tue, Sep 29.Round-trip flight with Icelandair and Ryanair.Outbound indirect flight with Icelandair, departing from Washington Dulles on Mon, Aug 31, arriving in Brussels International.Inbound indirect flight with Ryanair, departing from Brussels International on Tue, Sep 29, arriving in Washington Dulles.Price includes taxes and charges.From $705, select.

Brussels.$715 per passenger.Departing Mon, Sep 21, returning Fri, Nov 6.Round-trip flight with Scandinavian Airlines.Outbound indirect flight with Scandinavian Airlines, departing from Washington Dulles on Mon, Sep 21, arriving in Brussels International.Inbound indirect flight with Scandinavian Airlines, departing from Brussels International on Fri, Nov 6, arriving in Washington Dulles.Price includes taxes and charges.From $715, select.

Brussels.$716 per passenger.Departing Wed, Feb 3, returning Wed, Feb 24.Round-trip flight with Scandinavian Airlines.Outbound indirect flight with Scandinavian Airlines, departing from Washington Dulles on Wed, Feb 3, arriving in Brussels International.Inbound indirect flight with Scandinavian Airlines, departing from Brussels International on Wed, Feb 24, arriving in Washington Dulles.Price includes taxes and charges.From $716, select.

Brussels.$718 per passenger.Departing Mon, Mar 8, returning Thu, Mar 18.Round-trip flight with Scandinavian Airlines.Outbound indirect flight with Scandinavian Airlines, departing from Washington Dulles on Mon, Mar 8, arriving in Brussels International.Inbound indirect flight with Scandinavian Airlines, departing from Brussels International on Thu, Mar 18, arriving in Washington Dulles.Price includes taxes and charges.From $718, select.

Brussels.$720 per passenger.Departing Sun, Apr 11, returning Tue, Apr 20.Round-trip flight with Scandinavian Airlines.Outbound indirect flight with Scandinavian Airlines, departing from Washington Dulles on Sun, Apr 11, arriving in Brussels International.Inbound indirect flight with Scandinavian Airlines, departing from Brussels International on Tue, Apr 20, arriving in Washington Dulles.Price includes taxes and charges.From $720, select.

Brussels.$723 per passenger.Departing Tue, Apr 27, returning Tue, May 11.Round-trip flight with Scandinavian Airlines.Outbound indirect flight with Scandinavian Airlines, departing from Washington Dulles on Tue, Apr 27, arriving in Brussels International.Inbound indirect flight with Scandinavian Airlines, departing from Brussels International on Tue, May 11, arriving in Washington Dulles.Price includes taxes and charges.From $723, 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 November.

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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.

Washington, D.C. to Brussels: Flight information

The things to know before you go.

Cheapest flight found	$539
Cheapest month to fly	November
Average flight time	7 hrs, 37 mins
Most popular airline	Lufthansa
Average flights per week	54

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

How much are round-trip flights from Washington Dulles to Brussels International?

The best price we found for a round-trip flight from Washington Dulles to Brussels International is $539. 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.

How long does it take to fly from Washington Dulles to Brussels International?

7 hours and 37 minutes is the average flight time from Washington Dulles to Brussels International.

Which airlines fly direct from Washington Dulles to Brussels International?

Lufthansa, United and Brussels Airlines fly direct from Washington Dulles to Brussels International.

How many flights are there a week from Washington Dulles to Brussels International?

There are 54 flights per week flying from Washington Dulles to Brussels International, as of August 2026.

When is the cheapest time to fly from Washington Dulles to Brussels International?

The cheapest month to fly from Washington Dulles to Brussels International is usually November.

Which upcoming date is cheapest to fly from Washington Dulles Airport to Brussels International Airport on?

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 Wednesday, November 4, 2026.

Can I get a direct flight from Washington Dulles Airport to Brussels International Airport?

Yes – the average flight time is 7 hours and 37 minutes.

How can I find the best flight deal to Brussels International?

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.

When is the best time to book flights to Brussels?

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.

Which is the cheapest airline to fly with from Washington Dulles Airport to Brussels International?

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 traveling 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 kilometers from central Washington DC. If you're catching a cab, ride-sharing or driving from the center, 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 kilometers 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 kilometers east of Brussels. No trip is complete without experiencing Cathedral de Liege (Liege Cathedral), Parc De La Citadelle and Parc de la Chartreuse.