$390 Cheap Flights from Washington (IAD) to Brussels (BRU)

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Find available prices by choosing your travel dates.

Cheap Flights from Washington to Brussels (IAD-BRU)

Prices were available within the past 7 days and start at $390 for one-way flights and $487 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Scandinavian Airlines
Mon, Feb 24 - Sun, Mar 2
IAD
Washington
BRU
Brussels
$487 Roundtrip, just found
$487
Roundtrip
just found
Select Scandinavian Airlines flight, departing Mon, Feb 24 from Washington to Brussels, returning Sun, Mar 2, priced at $487 just found
Aer Lingus
Sun, Mar 2 - Thu, Mar 13
IAD
Washington
BRU
Brussels
$534 Roundtrip, found 6 days ago
$534
Roundtrip
found 6 days ago
Select Aer Lingus flight, departing Sun, Mar 2 from Washington to Brussels, returning Thu, Mar 13, priced at $534 found 6 days ago
Icelandair
Wed, Mar 12 - Thu, Apr 3
IAD
Washington
BRU
Brussels
$630 Roundtrip, found 1 hour ago
$630
Roundtrip
found 1 hour ago
Select Icelandair flight, departing Wed, Mar 12 from Washington to Brussels, returning Thu, Apr 3, priced at $630 found 1 hour ago
Turkish Airlines
Tue, Sep 23 - Tue, Oct 7
IAD
Washington
BRU
Brussels
$631 Roundtrip, found 5 days ago
$631
Roundtrip
found 5 days ago
Select Turkish Airlines flight, departing Tue, Sep 23 from Washington to Brussels, returning Tue, Oct 7, priced at $631 found 5 days ago
TAP Portugal
Tue, Mar 11 - Wed, Apr 2
IAD
Washington
BRU
Brussels
$644 Roundtrip, found 1 hour ago
$644
Roundtrip
found 1 hour ago
Select TAP Portugal flight, departing Tue, Mar 11 from Washington to Brussels, returning Wed, Apr 2, priced at $644 found 1 hour ago
Royal Air Maroc
Sun, Mar 16 - Sat, Mar 29
IAD
Washington
BRU
Brussels
$689 Roundtrip, found 1 hour ago
$689
Roundtrip
found 1 hour ago
Select Royal Air Maroc flight, departing Sun, Mar 16 from Washington to Brussels, returning Sat, Mar 29, priced at $689 found 1 hour ago
ITA Airways
Thu, Nov 27 - Mon, Dec 8
IAD
Washington
BRU
Brussels
$713 Roundtrip, found 2 days ago
$713
Roundtrip
found 2 days ago
Select ITA Airways flight, departing Thu, Nov 27 from Washington to Brussels, returning Mon, Dec 8, priced at $713 found 2 days ago
Brussels Airlines
Tue, Apr 1 - Tue, Apr 8
IAD
Washington
BRU
Brussels
$745 Roundtrip, found 6 hours ago
$745
Roundtrip
found 6 hours ago
Select Brussels Airlines flight, departing Tue, Apr 1 from Washington to Brussels, returning Tue, Apr 8, priced at $745 found 6 hours ago
Air Canada
Sun, Mar 30 - Tue, Apr 8
IAD
Washington
BRU
Brussels
$745 Roundtrip, found 3 hours ago
$745
Roundtrip
found 3 hours ago
Select Air Canada flight, departing Sun, Mar 30 from Washington to Brussels, returning Tue, Apr 8, priced at $745 found 3 hours ago
British Airways
Mon, Nov 10 - Mon, Nov 24
IAD
Washington
BRU
Brussels
$768 Roundtrip, found 2 days ago
$768
Roundtrip
found 2 days ago
Select British Airways flight, departing Mon, Nov 10 from Washington to Brussels, returning Mon, Nov 24, priced at $768 found 2 days ago
Flights from Washington (IAD) to Brussels (BRU)
Origin airport
Washington Dulles Intl.
Destination airport
Brussels - National
Airlines serving
Aer Lingus, Air Canada, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, ITA Airways, Iberia, Icelandair, KLM, Lufthansa, Royal Air Maroc, Scandinavian Airlines, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United, Virgin Atlantic
Roundtrip price
$487
Distance
3880 mi
Average flight time
7 hours 25 mins

Washington to Brussels Flights

The cheapest times to fly from Washington to Brussels

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Washington to Brussels are during the month of February. You can find some of the cheapest flights from Washington to Brussels with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Washington to Brussels

Sunday is one of the best days to book for cheap flights from Washington to Brussels: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Washington to Brussels

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Washington to Brussels in 2025. You can also book with separate airlines for your outbound and return journeys, from $390 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Washington to Brussels flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Washington to Brussels airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How long does it take to fly from Washington Dulles Intl. Airport (IAD) to BRU?
Book a seat with United Airlines and you can expect to be traveling for roughly 7 hours and 40 minutes. This well-known airline has a direct flight that sets off at 5:35PM from IAD and reaches Brussels Airport at 7:15AM. Expedia has some amazing flight deals, so take a peek at what’s on offer on this route today.
Is it cheaper to buy a plane ticket from Washington Dulles Intl. Airport (IAD) to Brussels - National Airport (BRU) last minute?
Being spontaneous is a rewarding way to travel, but it’s not always the ideal way to score a cheap plane ticket. It’s better to book your IAD to Brussels Airport journey well in advance rather than waiting until the last minute. Based on flight pricing and demand studies in 2022, we have found that the best time to book domestic flights is between 28 – 35 days ahead of the departure date, and international flights three to four months in advance. Leave your spontaneity for when you get to your destination!
What airline has the least delays from IAD to BRU?
Jet off with Brussels Airlines from IAD to Brussels - National Airport (BRU) and there’s a good chance you’ll land at the time listed on your boarding card. This airline takes first place on this route, with 75% of flights arriving on time. If there is a disruption to your flight, the Expedia App is the perfect way to stay in the loop. Download it and you’ll get immediate trip alerts, from flight delays to gate number changes and which carousel to collect your luggage.
What airports do you fly into for Brussels from Washington?
With Brussels - National Airport (BRU), Antwerp Intl. Airport (ANR) and Malle (OBL-Zoersel-Oostmalle Airfield) to pick from, journeying from Washington to Brussels is a cinch. The city’s main gateway, Brussels - National Airport (BRU), is around 7 mi northeast of the downtown area. As well as the price of fares, consider things like bus or train options from the airport and the distance to your hotel before making your choice. Get your Brussels trip off to a terrific start by exploring La Grand Place and Atomium.
What are the most popular departure times for flights from Washington Dulles Intl. Airport (IAD) to BRU?
For United Airlines flights making their way from Dulles Intl. Airport to Brussels Airport, the peak period is between 5:00 PM - 6:00 PM. If you’d like to avoid any holdups, book the earliest flight. This way you’re likely to dodge the air traffic that accumulates in the afternoon.
Can I change the date of my flight from IAD to BRU?
We know plans can change, so Expedia is here to help make things easy. First, access your IAD to BRU itinerary through the Expedia Trips portal and look up the fare rules to see if change fees apply. If you booked your plane ticket in the last 24 hours, some airlines will let you cancel without charge and organize new flights. If you bought your fare more than 24 hours ago, contact us through our Customer Service portal to learn more about your options.
Brussels nearby Airports

Antwerp

*Available to One Key members.