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Dulles Intl

$335+ 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 9/25. Fares are subject to change and may not be available on all flights or dates of travel.
BRU — IAD
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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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 29 days in advance, depart on a Thursday or Friday and return on a Wednesday

Cheap 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 31, 2025.

Round-trip from

$582
(United Airlines)

One-way from

$335
(Mytrip)

Popular in

April

Cheapest in

May

Average price

$690
From Brussels to Washington, D.C. Dulles Intl
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One-way flight from Brussels to Washington, D.C. Dulles Intl
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High demand for flights, 4% potential price rise
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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 2025
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Find 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 31, 2025.

This Icelandair deal was found by Cheapflights users on 7/29. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/71:50 pmBRU - IAD
1 stop14h 20mIcelandair
Sun 8/108:30 pmIAD - BRU
1 stop10h 20mIcelandair
Deal found 7/29$581
This United Airlines deal was found by Cheapflights users on 7/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/182:25 pmBRU - IAD
1 stop11h 40mUnited Airlines
Tue 8/265:45 pmIAD - BRU
Nonstop7h 30mUnited Airlines
Deal found 7/29$582
This Austrian Airlines deal was found by Cheapflights users on 7/31. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/116:50 amBRU - IAD
1 stop13h 45mAustrian Airlines
Fri 10/245:40 pmIAD - BRU
2 stops14h 25mAustrian Airlines
Deal found 7/31$585
This Air Canada deal was found by Cheapflights users on 7/30. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/67:00 amBRU - IAD
2 stops15h 21mAir Canada
Sun 11/912:35 pmIAD - BRU
2 stops13h 15mAir Canada
Deal found 7/30$593
This SWISS deal was found by Cheapflights users on 7/31. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/106:20 amBRU - IAD
2 stops15h 55mSWISS
Fri 10/248:45 pmIAD - BRU
2 stops15h 45mSWISS
Deal found 7/31$601
This Booking.com deal was found by Cheapflights users on 7/29. 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.
Fri 8/157:35 pmBRU - IAD
2 stops30h 14mBritish Airways
Sun 8/317:25 pmIAD - BRU
1 stop16h 35mBritish Airways
Deal found 7/29$605
This Mytrip deal was found by Cheapflights users on 7/31. 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 8/156:20 amBRU - IAD
2 stops15h 55mMultiple Airlines
Sun 8/319:45 amIAD - BRU
1 stop16h 15mMultiple Airlines
Deal found 7/31$609
This Cheapflightsfares deal was found by Cheapflights users on 7/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/197:20 pmBRU - IAD
2 stops27h 55mScandinavian Airlines
Sat 11/228:30 pmIAD - BRU
2 stops15h 45mScandinavian Airlines
Deal found 7/29$616
This Virgin Atlantic deal was found by Cheapflights users on 7/30. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1310:45 amBRU - IAD
2 stops18h 41mVirgin Atlantic
Sat 9/2012:08 pmIAD - BRU
2 stops14h 32mVirgin Atlantic
Deal found 7/30$621
This Lufthansa deal was found by Cheapflights users on 7/29. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/1712:00 pmBRU - IAD
Nonstop8h 25mLufthansa
Sat 8/2310:20 pmIAD - BRU
1 stop11h 55mLufthansa
Deal found 7/29$622
This Delta deal was found by Cheapflights users on 7/31. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1510:45 amBRU - IAD
1 stop19h 36mDelta
Wed 5/135:25 pmIAD - BRU
1 stop15h 10mDelta
Deal found 7/31$623
This Mytrip deal was found by Cheapflights users on 7/31. 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.
Thu 10/29:05 pmCRL - IAD
2 stops24h 15mMultiple Airlines
Wed 10/1510:20 pmIAD - CRL
2 stops18h 35mMultiple Airlines
Deal found 7/31$630

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 31, 2025.
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

Brussels

Fly to

Dulles Intl

Route

Depart

Return

Price

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Thu 8/7

1:50 pm-7:20 pm

1 stop11h 30m

Washington, D.C. Dulles Intl

Mon 8/11

8:30 pm-12:50 pm

1 stop10h 20m

$581

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Mon 8/18

9:30 am-3:15 pm

1 stop11h 45m

Washington, D.C. Dulles Intl

Mon 8/25

9:35 am-8:00 am

1 stop16h 25m

$582

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Sat 10/11

6:50 am-2:35 pm

1 stop13h 45m

Washington, D.C. Dulles Intl

Fri 10/24

5:40 pm-2:05 pm

2 stops14h 25m

$585

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Fri 10/10

6:20 am-4:15 pm

2 stops15h 55m

Washington, D.C. Dulles Intl

Fri 10/24

8:45 pm-6:30 pm

2 stops15h 45m

$601

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Sat 8/16

9:40 am-9:37 am

1 stop29h 57m

Washington, D.C. Dulles Intl

Tue 8/26

9:35 am-8:00 am

1 stop16h 25m

$604

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Fri 8/15

7:35 pm-7:49 pm

2 stops30h 14m

Washington, D.C. Dulles Intl

Sun 8/31

7:25 pm-6:00 pm

1 stop16h 35m

$605

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Fri 8/15

6:20 am-4:15 pm

2 stops15h 55m

Washington, D.C. Dulles Intl

Sun 8/31

9:45 am-8:00 am

1 stop16h 15m

$609

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Sat 9/13

10:45 am-11:26 pm

2 stops18h 41m

Washington, D.C. Dulles Intl

Sat 9/20

12:08 pm-8:40 am

2 stops14h 32m

$621

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Sun 8/17

12:00 pm-2:25 pm

Nonstop8h 25m

Washington, D.C. Dulles Intl

Sat 8/23

10:20 pm-4:15 pm

1 stop11h 55m

$622

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Fri 8/15

10:45 am-12:21 am

1 stop19h 36m

Washington, D.C. Dulles Intl

Wed 5/13

5:25 pm-2:35 pm

1 stop15h 10m

$623

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 19 results
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The best insider tips for Brussels to Washington, D.C. Dulles Intl Airport flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Brussels to Washington, D.C. Dulles Intl Airport trip
Airlines
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.

Read more about Brussels Airlinesby John Walton
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
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on United Airlines

Harriet Baskas

Harriet Baskas

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

John Walton

John Walton

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

Blane Bachelor

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

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

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 July 25, 2025.

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, July is the cheapest month in which you can book a flight from Brussels to Washington, D.C. Dulles Intl Airport (average of $306). 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 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 31, 2025.

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 15% on the cost of your flight, compared to a flight in the morning.

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 31, 2025.

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

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 31, 2025.
Peruse reviews from past customers who have flown with Delta, Austrian Airlines, and SWISS 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.
Delta
8.0
Very good
7,981 reviews

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Delta
8.0
Very good
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Austrian Airlines
7.6
Good
823 reviews
Delta
8.0
Very good
7,981 reviews

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
SWISS
7.5
Good
1,686 reviews
Delta
8.0
Very good
7,981 reviews

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
United Airlines
7.4
Good
8,900 reviews
Delta
8.0
Very good
7,981 reviews

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Virgin Atlantic
7.4
Good
655 reviews
Delta
8.0
Very good
7,981 reviews

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.

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.

  • 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 $582. Other airlines that can offer you cheap pricing are Austrian Airlines, from $585, and Icelandair, from $586. United Airlines is currently priced 3% 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 $363. However, be on the lookout for offers from Aer Lingus and Lufthansa, 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 (83%), Austrian Airlines (83%), SWISS (83%).

  • 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 $791, our data shows the cheapest flight currently is $577. When looking at the most popular route, (Brussels Bruxelles-National - Washington, D.C. Dulles Intl), you can expect to pay $458 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, July is the cheapest month in which you can book a flight from Brussels to Washington, D.C. Dulles Intl Airport (average of $306). 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.

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
Woodbridge
Arlington
Alexandria
Tysons
Silver Spring
Fredericksburg
Gaithersburg
Towson
Linthicum Heights
Easton
Fairfax
Manassas
Falls Church
Waldorf
Laurel
Rockville
Oxon Hill
National Harbor
Dundalk
Bowie

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Top 5 airlines flying from Brussels to Dulles Intl

Discover the top 5 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 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$456Average$558FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$468Average$619FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$470Average$637FlexibilityNo cancel feeOn-time69%
Brussels AirlinesCheapest$496Average$666FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$525Average$686FlexibilityNo cancel feeOn-time76%

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