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

TAP AIR PORTUGAL, Lufthansa, and United Airlines can get you from Brussels to Washington, D.C. Dulles Intl Airport in just under 11h 35m. Your travel time can differ by up to 3h 55m. 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 $581. Other airlines that can offer you cheap pricing are Lufthansa, from $584, and Brussels Airlines, from $584. United Airlines is currently priced 20% below the average price you’ll pay for this route.

What are the cheapest airlines to fly from Brussels to Washington, D.C. Dulles Intl Airport one-way?

The cheapest airline one-way is Aer Lingus, with whom users have recently found tickets for as low as $461. However, be on the lookout for offers from British Airways and Brussels Airlines, as they are both options that can get you from Brussels to Washington, D.C. Dulles Intl Airport for a low price.

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 $2,094, our data shows the cheapest flight currently is $748. When looking at the most popular route, (Brussels Bruxelles-National - Washington, D.C. Dulles Intl), you can expect to pay $596 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 (79%), Austrian Airlines (79%), SWISS (79%).

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: United Airlines, Brussels Airlines or Lufthansa.

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.

$398+ Cheap Flights from Brussels to Washington, D.C. Dulles Intl Airport

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Cheapflights Tip: The best prices from Brussels to Washington, D.C. Dulles Intl are usually found in February or November, booked 79 days in advance, depart on a Tuesday or Monday and return on a Thursday

Cheap flight deals from Brussels to Dulles Intl

Cheapest

Best

Last-minute

One-way

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 1, 2026.

Wed 10/2111:00 am -

1 stop12h 25m

Fri 10/3010:45 pm -

1 stop13h 35m

Deal found 8/30

$726

Sun 10/188:55 pm -

1 stop24h 15m

Sun 11/110:30 pm -

1 stop19h 20m

Deal found 9/1

$727

Wed 10/2111:00 am -

1 stop12h 25m

Fri 10/3010:45 pm -

1 stop13h 35m

Deal found 8/29

$729

Tue 9/151:50 pm -

1 stop11h 30m

Sat 10/248:40 pm -

1 stop10h 15m

Deal found 8/28

$730

Fri 9/117:05 am -

1 stop14h 25m

Thu 9/248:30 pm -

1 stop20h 05m

Deal found 8/28

$732

Thu 10/89:10 pm -

2 stops25h 50m

Thu 10/228:20 pm -

1 stop16h 10m

Deal found 8/31

$733

Thu 9/1710:20 am -

1 stop12h 40m

Wed 9/308:20 pm -

1 stop16h 10m

Deal found 9/1

$734

Thu 9/1012:00 pm -

Nonstop8h 20m

Wed 9/235:45 pm -

Nonstop7h 30m

Deal found 8/27

$735

Tue 10/1311:50 am -

1 stop14h 45m

Tue 10/2010:35 pm -

1 stop19h 20m

Deal found 8/29

$737

Tue 10/1310:30 am -

1 stop11h 35m

Tue 10/205:45 pm -

Nonstop7h 30m

Deal found 8/29

$738

Thu 9/172:30 pm -

2 stops31h 35m

Sat 10/35:30 pm -

2 stops23h 05m

Deal found 8/29

$780

Tue 11/246:20 am -

2 stops44h 15m

Mon 11/305:50 pm -

1 stop11h 50m

Deal found 8/28

$805

Best flights from Brussels to Dulles Intl
Discover carefully curated flight deals from Brussels to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 1, 2026.

Fri 1/1511:50 am -

1 stop14h 45m

Sun 1/1710:30 pm -

1 stop19h 20m

Deal found 8/29

$734

Tue 10/1311:20 am -

2 stops32h 15m

Tue 10/203:25 pm -

2 stops23h 05m

Deal found 8/27

$748

Tue 10/1310:30 am -

1 stop11h 35m

Tue 10/205:45 pm -

Nonstop7h 30m

Deal found 8/27

$764

Wed 10/2110:30 am -

1 stop15h 30m

Fri 10/306:45 pm -

Nonstop7h 30m

Deal found 8/30

$774

Tue 10/136:20 am -

1 stop15h 15m

Tue 10/2010:57 am -

2 stops14h 38m

Deal found 8/27

$790

Fri 10/166:20 am -

1 stop13h 15m

Fri 10/307:20 pm -

1 stop12h 55m

Deal found 8/29

$776

Tue 11/246:20 am -

2 stops44h 15m

Mon 11/305:50 pm -

1 stop11h 50m

Deal found 8/28

$805

Sat 9/192:25 pm -

1 stop11h 30m

Thu 10/226:35 pm -

1 stop12h 40m

Deal found 8/28

$778

Tue 1/268:05 pm -

2 stops26h 15m

Mon 2/15:50 pm -

1 stop11h 50m

Deal found 8/30

$823

Fri 9/182:25 pm -

1 stop11h 30m

Fri 10/235:45 pm -

Nonstop7h 30m

Deal found 8/28

$778

Wed 9/162:25 pm -

1 stop11h 30m

Wed 10/148:50 am -

2 stops18h 00m

Deal found 8/27

$779

Sat 11/218:55 am -

2 stops41h 40m

Sat 12/55:50 pm -

1 stop16h 40m

Deal found 8/29

$885

Mon 1/257:00 am -

1 stop13h 35m

Tue 2/25:45 pm -

Nonstop7h 30m

Deal found 8/30

$780

Tue 11/248:00 am -

2 stops38h 20m

Sat 12/55:50 pm -

1 stop16h 40m

Deal found 8/29

$900

Fri 9/182:25 pm -

1 stop11h 30m

Sun 10/1810:20 pm -

1 stop11h 55m

Deal found 8/28

$782

Thu 10/226:35 am -

2 stops20h 00m

Thu 10/298:40 pm -

2 stops17h 45m

Deal found 8/28

$913

Sat 9/268:10 am -

2 stops17h 00m

Sat 10/38:40 pm -

2 stops12h 40m

Deal found 8/29

$916

Wed 1/206:20 am -

1 stop20h 15m

Sat 1/305:25 pm -

1 stop14h 20m

Deal found 8/30

$920

Wed 9/169:20 am -

1 stop12h 25m

Tue 10/208:30 pm -

2 stops13h 00m

Deal found 8/28

$961

Tue 12/296:20 am -

1 stop16h 00m

Wed 1/65:50 pm -

1 stop11h 50m

Deal found 9/1

$1,001

Tue 10/66:55 am -

2 stops19h 40m

Thu 10/228:30 pm -

1 stop11h 40m

Deal found 8/29

$1,004

Last-minute flights from Brussels to Dulles Intl
Discover last-minute flight deals from Brussels to Dulles Intl. Data last updated September 1, 2026 and is based on user searches.

Thu 9/1012:00 pm -

Nonstop8h 20m

Wed 9/235:45 pm -

Nonstop7h 30m

Deal found 8/27

$735

Fri 9/117:05 am -

1 stop14h 25m

Thu 9/248:30 pm -

1 stop20h 05m

Deal found 8/28

$732

Tue 9/151:50 pm -

1 stop11h 30m

Sat 10/248:40 pm -

1 stop10h 15m

Deal found 8/28

$730

Tue 9/156:15 pm -

2 stops26h 55m

Mon 10/195:00 pm -

1 stop12h 55m

Deal found 8/28

$894

Thu 9/1710:20 am -

1 stop12h 40m

Wed 9/308:20 pm -

1 stop16h 10m

Deal found 9/1

$734

Thu 9/172:30 pm -

2 stops31h 35m

Sat 10/35:30 pm -

2 stops23h 05m

Deal found 8/29

$780

Thu 10/89:10 pm -

2 stops25h 50m

Thu 10/228:20 pm -

1 stop16h 10m

Deal found 8/31

$733

Tue 10/1311:50 am -

1 stop14h 45m

Tue 10/2010:35 pm -

1 stop19h 20m

Deal found 8/29

$737

Tue 10/1310:30 am -

1 stop11h 35m

Tue 10/205:45 pm -

Nonstop7h 30m

Deal found 8/29

$738

Sun 10/188:55 pm -

1 stop24h 15m

Sun 11/110:30 pm -

1 stop19h 20m

Deal found 9/1

$727

Wed 10/2111:00 am -

1 stop12h 25m

Fri 10/3010:45 pm -

1 stop13h 35m

Deal found 8/30

$726

Wed 10/2111:00 am -

1 stop12h 25m

Fri 10/3010:45 pm -

1 stop13h 35m

Deal found 8/29

$729

One-way flights from Brussels to Dulles Intl
Search for one-way flight options from Brussels to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated September 1, 2026.

Thu 1/710:15 am -

1 stop11h 30m

Deal found 8/29

$398

Sun 10/2510:15 am -

1 stop11h 30m

Deal found 8/29

$439

Thu 12/177:00 am -

1 stop15h 20m

Deal found 8/29

$443

Sun 11/299:15 pm -

3 stops46h 35m

Deal found 8/28

$447

Tue 9/156:30 pm -

3 stops50h 40m

Deal found 8/31

$449

Wed 9/95:20 pm -

3 stops51h 05m

Deal found 8/29

$450

Sat 10/317:35 pm -

3 stops50h 45m

Deal found 9/1

$455

Fri 12/189:50 am -

1 stop16h 05m

Deal found 8/29

$460

Wed 12/3012:00 pm -

1 stop13h 55m

Deal found 8/28

$462

Wed 9/165:15 pm -

3 stops27h 55m

Deal found 8/31

$463

Fri 11/139:55 pm -

2 stops24h 25m

Deal found 8/29

$466

Sun 11/2210:00 am -

3 stops57h 50m

Deal found 8/31

$467

Find flight deals from Brussels to Dulles Intl

Round-trip from	$725 (Icelandair)
One-way from	$398 (eDestinos)
Popular in	August
Cheapest in	February
Average price	$776

From Brussels to Washington, D.C. Dulles Intl

Search Deals

One-way flight from Brussels to Washington, D.C. Dulles Intl

Search Deals

Highest demand for flights based on searches. 11% potential increase in price ($92 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($13 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Brussels to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BrusselsWashington, D.C.

BRU Brussels Bruxelles-National - IAD Washington, D.C. Dulles Intl

BRUIAD

Brussels Bruxelles-National

Fri 1/15

11:50 am-8:35 pm

1 stop14h 45m

Washington, D.C. Dulles Intl

Sun 1/17

10:30 pm-11:50 pm

1 stop19h 20m

$734

BrusselsWashington, D.C.

BRU Brussels Bruxelles-National - IAD Washington, D.C. Dulles Intl

BRUIAD

Brussels Bruxelles-National

Tue 10/13

11:20 am-1:35 pm

2 stops32h 15m

Washington, D.C. Dulles Intl

Tue 10/20

3:25 pm-8:30 pm

2 stops23h 05m

$748

BrusselsWashington, D.C.

BRU Brussels Bruxelles-National - IAD Washington, D.C. Dulles Intl

BRUIAD

Brussels Bruxelles-National

Tue 10/13

10:30 am-4:05 pm

1 stop11h 35m

Washington, D.C. Dulles Intl

Tue 10/20

5:45 pm-7:15 am

Nonstop7h 30m

$764

BrusselsWashington, D.C.

BRU Brussels Bruxelles-National - IAD Washington, D.C. Dulles Intl

BRUIAD

Brussels Bruxelles-National

Wed 10/21

10:30 am-8:00 pm

1 stop15h 30m

Washington, D.C. Dulles Intl

Fri 10/30

6:45 pm-7:15 am

Nonstop7h 30m

$774

BrusselsWashington, D.C.

BRU Brussels Bruxelles-National - IAD Washington, D.C. Dulles Intl

BRUIAD

Brussels Bruxelles-National

Fri 10/16

6:20 am-1:35 pm

1 stop13h 15m

Washington, D.C. Dulles Intl

Fri 10/30

7:20 pm-1:15 pm

1 stop12h 55m

$776

BrusselsWashington, D.C.

BRU Brussels Bruxelles-National - IAD Washington, D.C. Dulles Intl

BRUIAD

Brussels Bruxelles-National

Sat 9/19

2:25 pm-7:55 pm

1 stop11h 30m

Washington, D.C. Dulles Intl

Thu 10/22

6:35 pm-1:15 pm

1 stop12h 40m

$778

Quickest round-trip

BrusselsWashington, D.C.

BRU Brussels Bruxelles-National - IAD Washington, D.C. Dulles Intl

BRUIAD

Brussels Bruxelles-National

Fri 9/18

2:25 pm-7:55 pm

1 stop11h 30m

Washington, D.C. Dulles Intl

Fri 10/23

5:45 pm-7:15 am

Nonstop7h 30m

$778

BrusselsWashington, D.C.

BRU Brussels Bruxelles-National - IAD Washington, D.C. Dulles Intl

BRUIAD

Brussels Bruxelles-National

Wed 9/16

2:25 pm-7:55 pm

1 stop11h 30m

Washington, D.C. Dulles Intl

Wed 10/14

8:50 am-8:50 am

2 stops18h 00m

$779

BrusselsWashington, D.C.

BRU Brussels Bruxelles-National - IAD Washington, D.C. Dulles Intl

BRUIAD

Brussels Bruxelles-National

Mon 1/25

7:00 am-2:35 pm

1 stop13h 35m

Washington, D.C. Dulles Intl

Tue 2/2

5:45 pm-7:15 am

Nonstop7h 30m

$780

BrusselsWashington, D.C.

BRU Brussels Bruxelles-National - IAD Washington, D.C. Dulles Intl

BRUIAD

Brussels Bruxelles-National

Fri 9/18

2:25 pm-7:55 pm

1 stop11h 30m

Washington, D.C. Dulles Intl

Sun 10/18

10:20 pm-4:15 pm

1 stop11h 55m

$782

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/28

Showing 1-10 of 39 resultsSorted by cheapest first

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.

BR1-IAD

BRU-IAD

CRL-IAD

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

BR1-IAD

BRU-IAD

CRL-IAD

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

Currently, February is the cheapest month in which you can book a flight from Brussels to Washington, D.C. Dulles Intl Airport (average of $597). Flying from Brussels to Washington, D.C. Dulles Intl Airport in August is currently the most expensive (average of $876). 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 time of day to fly from BRU to IAD?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Brussels to Washington, D.C. Dulles Intl Airport as you normally would.

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).

How much does it cost to fly round-trip from Brussels to Washington, D.C. Dulles Intl Airport?

Airfare is typical for this route at the moment.

Brussels to Washington, D.C. Dulles Intl Airport flights typically cost between $654 and $921 in January.
The cheapest round-trip price found within the last 5 days was $725 on Icelandair (Jan 24-Feb 1).

How often are flights from Brussels to Washington, D.C. delayed?

About 19% of weekly flights between Brussels and Washington, D.C. have experienced delays in the past year, with the average delay time being 132 minutes.

What is the most punctual flight time for Brussels to Washington, D.C. flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Monday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Brussels to Washington, D.C. flights?

Over the last year, United Airlines have had the lowest number of delays on this route, with just 15% of flights being delayed.

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 71 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.

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

Cheapflights partnered with top experts to bring you the best recommendations for your Brussels to Washington, D.C. Dulles Intl Airport trip

Our travel experts

Harriet Baskas

Expert on United Airlines

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

John Walton

Expert on Brussels Airlines

Independent aviation journalist John Walton took his first flight at eight weeks old and hasn’t stopped travelling since. A world-renowned expert in airlines and the passenger experience, he writes in depth on aviation, is a resident expert on travel in Japan and France, and offers a uniquely queer perspective on travelling the world.

Blane Bachelor

Expert on Lufthansa

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Peruse reviews from past customers who have flown with United Airlines,Brussels Airlines, andLufthansa from Brussels to Washington, D.C. Dulles Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

10,157 reviews

Reviews

1 / 20

10.0

Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

United Airlines

7.4

Good

10,157 reviews

United Airlines

7.4

Good

10,157 reviews

Reviews

1 / 20

10.0

Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Brussels Airlines

7.3

Good

431 reviews

United Airlines

7.4

Good

10,157 reviews

Reviews

1 / 20

10.0

Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Lufthansa

6.8

Okay

8,232 reviews

United Airlines

7.4

Good

10,157 reviews

Reviews

1 / 20

10.0

Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

How long is the flight from Brussels to Washington, D.C. Dulles Intl Airport?
TAP AIR PORTUGAL, Lufthansa, and United Airlines can get you from Brussels to Washington, D.C. Dulles Intl Airport in just under 11h 35m. Your travel time can differ by up to 3h 55m. 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 $581. Other airlines that can offer you cheap pricing are Lufthansa, from $584, and Brussels Airlines, from $584. United Airlines is currently priced 20% below the average price you’ll pay for this route.
What are the cheapest airlines to fly from Brussels to Washington, D.C. Dulles Intl Airport one-way?
The cheapest airline one-way is Aer Lingus, with whom users have recently found tickets for as low as $461. However, be on the lookout for offers from British Airways and Brussels Airlines, as they are both options that can get you from Brussels to Washington, D.C. Dulles Intl Airport for a low price.
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 (79%), Austrian Airlines (79%), SWISS (79%).
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 $2,094, our data shows the cheapest flight currently is $748. When looking at the most popular route, (Brussels Bruxelles-National - Washington, D.C. Dulles Intl), you can expect to pay $596 for that flight.
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.
What is the cheapest month to book a flight from Brussels to Washington, D.C. Dulles Intl Airport?
Currently, February is the cheapest month in which you can book a flight from Brussels to Washington, D.C. Dulles Intl Airport (average of $597). Flying from Brussels to Washington, D.C. Dulles Intl Airport in August is currently the most expensive (average of $876). 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.

See more FAQs

Alexandria

Owings Mills

Arlington

Tysons

Lanham

Reston

Herndon

Rockville

Chantilly

Hyattsville

Fredericksburg

Woodbridge

Falls Church

Sterling

Hanover

Laurel

Oxon Hill

Clinton

Hunt Valley

Silver Spring

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

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Dulles Intl flight routes

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Other flight options

Popular flights

Alternative routes for Brussels to Dulles Intl

Bruxelles-National to Reagan-National flights

Top 3 airlines flying from Brussels to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$581	Average$814	FlexibilityNo cancel fee	On-time69%
Lufthansa	Cheapest$584	Average$842	FlexibilityNo cancel fee	On-time76%
Brussels Airlines	Cheapest$584	Average$813	FlexibilityNo cancel fee	On-timeN/A

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$398+ 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 1/7. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap flight deals from Brussels to Dulles Intl

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 1, 2026.

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 1, 2026.

Best flights from Brussels to Dulles IntlDiscover carefully curated flight deals from Brussels to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 1, 2026.

Discover carefully curated flight deals from Brussels to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 1, 2026.

Last-minute flights from Brussels to Dulles IntlDiscover last-minute flight deals from Brussels to Dulles Intl. Data last updated September 1, 2026 and is based on user searches.

Discover last-minute flight deals from Brussels to Dulles Intl. Data last updated September 1, 2026 and is based on user searches.

One-way flights from Brussels to Dulles IntlSearch for one-way flight options from Brussels to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated September 1, 2026.

Search for one-way flight options from Brussels to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated September 1, 2026.

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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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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 1, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Brussels to Washington, D.C. Dulles Intl Airport as you normally would.

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).

How much does it cost to fly round-trip from Brussels to Washington, D.C. Dulles Intl Airport?

Airfare is typical for this route at the moment.

Brussels to Washington, D.C. Dulles Intl Airport flights typically cost between $654 and $921 in January.The cheapest round-trip price found within the last 5 days was $725 on Icelandair (Jan 24-Feb 1).

How often are flights from Brussels to Washington, D.C. delayed?

About 19% of weekly flights between Brussels and Washington, D.C. have experienced delays in the past year, with the average delay time being 132 minutes.

What is the most punctual flight time for Brussels to Washington, D.C. flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Monday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Brussels to Washington, D.C. flights?

Over the last year, United Airlines have had the lowest number of delays on this route, with just 15% of flights being delayed.

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

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

AI-powered summary based on content written by travel experts. AI can make mistakes.

Cheapflights partnered with top experts to bring you the best recommendations for your Brussels to Washington, D.C. Dulles Intl Airport trip

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

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

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

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

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Alternative routes for Brussels to Dulles Intl

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Other flights to Dulles Intl

Explore flights to Dulles Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 1, 2026.

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Brussels and Dulles Intl flights

Browse other Brussels and Dulles Intl flight options. Last updated on September 1, 2026.

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Top 3 airlines flying from Brussels to Dulles Intl

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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 1, 2026.

Best flights from Brussels to Dulles Intl
Discover carefully curated flight deals from Brussels to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 1, 2026.

Last-minute flights from Brussels to Dulles Intl
Discover last-minute flight deals from Brussels to Dulles Intl. Data last updated September 1, 2026 and is based on user searches.

One-way flights from Brussels to Dulles Intl
Search for one-way flight options from Brussels to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated September 1, 2026.

Brussels to Washington, D.C. Dulles Intl Airport flights typically cost between $654 and $921 in January.
The cheapest round-trip price found within the last 5 days was $725 on Icelandair (Jan 24-Feb 1).