How long is the flight from Brussels to Washington, D.C. Dulles Intl Airport?

Lufthansa and United Airlines can get you from Brussels to Washington, D.C. Dulles Intl Airport in just under 11h. Your travel time can differ by up to 1h 45m. There are 3879 mi between Brussels and Washington, D.C. Dulles Intl Airport. Both multi-stop and nonstop flights can be found to your destination and back.

What are the cheapest airlines flying from Brussels to Washington, D.C. Dulles Intl Airport round-trip?

Cheapflights users have booked flights from Brussels to Washington, D.C. Dulles Intl Airport round-trip from $456. Other airlines that can offer you cheap pricing are United Airlines, from $470, and Brussels Airlines, from $496. British Airways is currently priced 24% below the average price you’ll pay for this route.

How far ahead should I book a flight from Brussels to Washington, D.C. Dulles Intl Airport?

To ensure you get the cheapest price possible for a flight from Brussels to Washington, D.C. Dulles Intl Airport, you should look to book at least 29 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Brussels to Washington, D.C. Dulles Intl Airport?

Currently, August is the cheapest month in which you can book a flight from Brussels to Washington, D.C. Dulles Intl Airport (average of $292). Flying from Brussels to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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 day to fly from Brussels to Washington, D.C. Dulles Intl Airport?

Travelers seeking maximum savings on their Brussels to Washington, D.C. Dulles Intl Airport flight should consider departing on Friday at noon when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Brussels to Washington, D.C. Dulles Intl Airport

The most flights from BR1 to IAD are scheduled on a Monday (8 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (6 on average).

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

What are the cheapest flights from Brussels to Washington, D.C. Dulles Intl Airport?

While on average a flight from Brussels to Washington, D.C. Dulles Intl Airport is generally $685, our data shows the cheapest flight currently is $503. When looking at the most popular route, (Brussels Bruxelles-National - Washington, D.C. Dulles Intl), you can expect to pay $435 for that flight.

What are the most reliable airlines from Brussels to Washington, D.C. Dulles Intl Airport?

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Brussels to Washington, D.C. Dulles Intl Airport on time: Air Canada (77%), Austrian Airlines (77%), SWISS (77%).

What are the most popular airlines that fly from Brussels to Washington, D.C. Dulles Intl Airport?

Before booking your flight from Brussels to Washington, D.C. Dulles Intl Airport check out the most popular airlines for this route: British Airways, Lufthansa or Brussels Airlines.

What is the cheapest day to fly round-trip from Brussels to Washington, D.C. Dulles Intl Airport?

Users have found that leaving on a Wednesday can be a cost-effective option. It’s possible to save up to 9% on your flight compared to booking on days when demand is much higher.

How far in advance should I book a flight from Brussels to Washington, D.C. Dulles Intl Airport?

To save up to 48% on this flight, we recommend booking at least 60 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Brussels to Washington, D.C. Dulles Intl Airport from $606 1-2 weeks out and tickets from $807 for flights departing within the next 72 hours.

What is the cheapest month to fly from Brussels to Washington, D.C. Dulles Intl Airport?

May is one of the best times of the year to fly to Washington, D.C. Dulles Intl Airport from Brussels. Prices for May average $597 per person but you can even find prices for as low as $446. The most expensive prices can be found in the month of December. Opting for a May flight can save you 18% on your journey compared to booking in December

What is the cheapest time of day to fly from BRU to IAD?

It’s optimal to fly from Brussels to Washington, D.C. Dulles Intl Airport in the afternoon. By choosing this option you can save up to 14% on the cost of your flight, compared to a flight in the morning.

Can I find deals for flights from Brussels to Dulles Intl that include hotel bookings?

Yes. In addition to deals on Brussels to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Brussels to Dulles Intl?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Brussels to Dulles Intl.

Can I find deals for business class flights from Brussels to Dulles Intl?

Yes. Cheapflights offers flight deals from Brussels 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.

$356+ Flights from Brussels to Washington, D.C. Dulles Intl Airport

Round-trip from	$519 (Lufthansa)
One-way from	$356 (Kiwi.com)
Popular in	April
Cheapest in	May
Average price	$615

United Airlines

United's Polaris Lounges at IAD offer showers, daybeds, and dining for long-haul passengers.

United's Premium Plus offers extra legroom, upgraded meals, and two checked bags on international flights.

Read more about United Airlinesby Harriet Baskas

Brussels Airlines

Brussels Airlines' Premium Economy offers larger seats and upgraded meals on long-haul flights.

Brussels Airlines' economy class includes meals, drinks, and seatback entertainment on long-haul flights.

Lufthansa

Lufthansa's Allegris cabins offer 31-inch pitch seats with adjustable headrests for long-haul comfort.

Lufthansa's Sleeper's Row offers extra space with a mattress and blanket for long-haul flights.

Read more about Lufthansaby Blane Bachelor

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest$456	Average$558	FlexibilityNo cancel fee	On-time70%
United Airlines	Cheapest$470	Average$636	FlexibilityNo cancel fee	On-time69%
Brussels Airlines	Cheapest$496	Average$668	FlexibilityNo cancel fee	On-timeN/A
Lufthansa	Cheapest$521	Average$698	FlexibilityNo cancel fee	On-time76%

$356+ Cheap flights from Brussels to Dulles Intl (IAD)

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 9/20. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheapflights Tip: The best prices from Brussels to Washington, D.C. Dulles Intl are usually found in May or March, booked 89 days in advance, depart on a Thursday or Friday and return on a Wednesday

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Cheapest flights from Brussels to Dulles IntlExplore the most affordable flight options available from Brussels to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

Explore the most affordable flight options available from Brussels to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

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The best insider tips for Brussels to Washington, D.C. Dulles Intl Airport flights

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Best time to book a flight from Brussels to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Brussels with our price prediction graph.

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Everything you need to know about your flight from Brussels to Washington, D.C. Dulles Intl Airport

How far ahead should I book a flight from Brussels to Washington, D.C. Dulles Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Brussels to Dulles Intl. Price data was last updated on August 29, 2025.

What is the cheapest month to book a flight from Brussels to Washington, D.C. Dulles Intl Airport?

What is the cheapest time of day to fly from BRU to IAD?

Find hourly flight availability from Brussels 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 September 11, 2025.

Weekly flight availability from Brussels to Washington, D.C. Dulles Intl Airport

Reviews of airlines servicing Dulles Intl

Related info for your journey

Find useful and relevant information for your journey from Brussels 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 to Washington, D.C. Dulles Intl Airport?

What are the cheapest airlines flying from Brussels to Washington, D.C. Dulles Intl Airport round-trip?

What are the most reliable airlines from Brussels to Washington, D.C. Dulles Intl Airport?

What are the cheapest flights from Brussels to Washington, D.C. Dulles Intl Airport?

Can I find deals for flights from Brussels to Dulles Intl that include hotel bookings?

How can I find direct flights from Brussels to Dulles Intl?

Can I find deals for business class flights from Brussels to Dulles Intl?

What is the cheapest month to book a flight from Brussels to Washington, D.C. Dulles Intl Airport?

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Cheapest flights from Brussels to Dulles Intl
Explore the most affordable flight options available from Brussels to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.