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Dulles Intl

$336+ 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 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
BRU — IAD
Aug 9 — Aug 161
Sun 8/9
Sun 8/16
1 adult, Economy
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Find cheap flights from Brussels to Dulles Intl with Cheapflights

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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 51 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

Cheap flight deals from Brussels to Dulles Intl

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 July 10, 2026.

This Mytrip deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1711:35 am
BRU
-
IAD
1 stop32h 55m
ITA Airways
Sun 8/304:30 pm
IAD
-
BRU
1 stop12h 15m
ITA Airways
Deal found 7/6$701
This FlightHub deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/191:50 pm
BRU
-
IAD
1 stop11h 30m
Icelandair
Tue 10/68:30 pm
IAD
-
BRU
1 stop10h 25m
Icelandair
Deal found 7/6$705
This Mytrip deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/226:55 pm
BRU
-
IAD
1 stop25h 35m
ITA Airways
Sun 7/264:30 pm
IAD
-
BRU
1 stop19h 25m
ITA Airways
Deal found 7/6$706
This ResecentrumGruppen deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure ResecentrumGruppen is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/239:40 am
BRU
-
IAD
1 stop13h 05m
Multiple Airlines
Wed 8/53:45 pm
IAD
-
BRU
1 stop9h 25m
Multiple Airlines
Deal found 7/7$708
This Gotogate deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/1611:35 am
BRU
-
IAD
1 stop32h 55m
ITA Airways
Sat 7/254:30 pm
IAD
-
BRU
2 stops20h 45m
ITA Airways
Deal found 7/5$709
This Booking.com deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/710:20 am
BRU
-
IAD
1 stop12h 40m
Scandinavian Airlines
Thu 9/178:20 pm
IAD
-
BRU
1 stop16h 10m
Scandinavian Airlines
Deal found 7/5$710
This lol.travel deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/229:30 am
BRU
-
IAD
1 stop11h 31m
Air Canada
Sat 8/298:15 am
IAD
-
BRU
2 stops16h 55m
Air Canada
Deal found 7/8$711
This lol.travel deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/3012:00 pm
BRU
-
IAD
Nonstop8h 20m
Multiple Airlines
Wed 8/128:20 pm
IAD
-
BRU
1 stop11h 55m
Multiple Airlines
Deal found 7/9$714
This oojo deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/187:15 am
BRU
-
IAD
1 stop13h 15m
ITA Airways
Sat 8/294:30 pm
IAD
-
BRU
1 stop12h 15m
ITA Airways
Deal found 7/7$716
This TAP AIR PORTUGAL deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/78:55 pm
BRU
-
IAD
1 stop24h 15m
TAP AIR PORTUGAL
Thu 9/1710:35 pm
IAD
-
BRU
1 stop15h 30m
TAP AIR PORTUGAL
Deal found 7/8$718
This Kiwi.com deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/77:45 am
CRL
-
IAD
1 stop13h 25m
Multiple Airlines
Tue 10/205:05 pm
IAD
-
CRL
1 stop14h 35m
Multiple Airlines
Deal found 7/8$727
This Mytrip deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/116:35 pm
CRL
-
IAD
2 stops26h 35m
Multiple Airlines
Thu 9/178:30 pm
IAD
-
CRL
2 stops20h 25m
Multiple Airlines
Deal found 7/8$780

Find flight deals from Brussels to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Brussels (BR1) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 10, 2026.

Round-trip from

$701
(Mytrip)

One-way from

$336
(Kiwi.com)

Popular in

May

Cheapest in

February

Average price

$748
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. 9% potential increase in price ($73 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in July 2026
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Brussels to Dulles Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 10, 2026.
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.

CRL - IAD

CRLIAD

Charleroi Brussels

Wed 10/7

7:45 am-3:10 pm

1 stop13h 25m

Washington, D.C. Dulles Intl

Tue 10/20

5:05 pm-1:40 pm

1 stop14h 35m

$727

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Fri 10/16

11:50 am-8:35 pm

1 stop14h 45m

Washington, D.C. Dulles Intl

Fri 10/30

11:30 pm-11:50 pm

1 stop19h 20m

$734

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Mon 8/10

8:35 am-3:15 pm

1 stop12h 40m

Washington, D.C. Dulles Intl

Mon 8/17

5:35 pm-7:25 am

Nonstop7h 50m

$749

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Wed 10/21

10:30 am-4:05 pm

1 stop11h 35m

Washington, D.C. Dulles Intl

Fri 10/30

6:45 pm-7:15 am

Nonstop7h 30m

$749

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Sat 12/12

2:25 pm-8:05 pm

1 stop11h 40m

Washington, D.C. Dulles Intl

Sat 1/2

12:35 pm-10:20 am

2 stops15h 45m

$753

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Thu 8/6

2:25 pm-8:00 pm

1 stop11h 35m

Washington, D.C. Dulles Intl

Thu 8/13

8:35 am-7:50 am

2 stops17h 15m

$753

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Wed 8/19

6:20 am-1:35 pm

1 stop13h 15m

Washington, D.C. Dulles Intl

Tue 10/6

5:45 pm-7:15 am

Nonstop7h 30m

$754
Quickest round-trip

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Fri 10/16

12:00 pm-2:15 pm

Nonstop8h 15m

Washington, D.C. Dulles Intl

Fri 10/30

6:45 pm-7:15 am

Nonstop7h 30m

$756

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Sat 8/8

2:25 pm-8:00 pm

1 stop11h 35m

Washington, D.C. Dulles Intl

Sun 8/16

8:35 am-7:10 am

2 stops16h 35m

$757

BrusselsWashington, D.C.

CRL - IAD

CRLIAD

Charleroi Brussels

Thu 8/27

7:05 am-7:20 pm

2 stops18h 15m

Washington, D.C. Dulles Intl

Thu 9/10

8:30 pm-9:30 pm

2 stops19h 00m

$888

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/9

Showing 1-10 of 39 resultsSorted by cheapest first
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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.
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

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

Currently, May is the cheapest month in which you can book a flight from Brussels to Washington, D.C. Dulles Intl Airport (average of $417). Flying from Brussels to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $591). 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?

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 July 10, 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

Explore weekly flight availability from Brussels to Dulles Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 10, 2026.

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?

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 138 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 14% 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 49 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

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
Our travel experts
Harriet Baskas

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.

Read more
John Walton

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.

Read more
Blane Bachelor

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.

Read more

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dulles Intl. Reviews last updated July 10, 2026.
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
9,963 reviews

Crew

8.1

Overall

7.4

Entertainment

7.1

Boarding

7.7

Food

6.7

Comfort

7.3

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
9,963 reviews
United Airlines
7.4
Good
9,963 reviews

Crew

8.1

Overall

7.4

Entertainment

7.1

Boarding

7.7

Food

6.7

Comfort

7.3

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
7.2
Good
420 reviews
United Airlines
7.4
Good
9,963 reviews

Crew

8.1

Overall

7.4

Entertainment

7.1

Boarding

7.7

Food

6.7

Comfort

7.3

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
8,127 reviews
United Airlines
7.4
Good
9,963 reviews

Crew

8.1

Overall

7.4

Entertainment

7.1

Boarding

7.7

Food

6.7

Comfort

7.3

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

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?

    ITA Airways, Icelandair, and Scandinavian Airlines can get you from Brussels to Washington, D.C. Dulles Intl Airport in just under 11h 30m. Your travel time can differ by up to 21h 25m. 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 $523. Other airlines that can offer you cheap pricing are United Airlines, from $580, and Lufthansa, from $584. Brussels Airlines is currently priced 25% 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 TAP AIR PORTUGAL, with whom users have recently found tickets for as low as $370. However, be on the lookout for offers from Aer Lingus 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: Lufthansa (85%), Air Canada (84%), Austrian Airlines (84%).

  • 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 $890, our data shows the cheapest flight currently is $736. When looking at the most popular route, (Brussels Bruxelles-National - Washington, D.C. Dulles Intl), you can expect to pay $603 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, May is the cheapest month in which you can book a flight from Brussels to Washington, D.C. Dulles Intl Airport (average of $417). Flying from Brussels to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $591). 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

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Arlington
Tysons
Owings Mills
Springfield
Lanham
Reston
Herndon
Rockville
Hyattsville
Manassas
Falls Church
Fredericksburg
Hanover
Chantilly
Laurel
Sterling
Silver Spring
Clinton
Hunt Valley

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Brussels to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
Bruxelles-National to Reagan-National flights

Top 3 airlines flying from Brussels to Dulles Intl

Discover the top 3 airlines that operate flights from Brussels to Dulles Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
Brussels AirlinesCheapest$523Average$668FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$580Average$761FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$584Average$747FlexibilityNo cancel feeOn-time76%

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