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Dulles Intl

$355+ 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 5/7. Fares are subject to change and may not be available on all flights or dates of travel.
BRU — IAD
May 5 — May 121
Mon 5/5
Mon 5/12
1 adult, Economy
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Cheapflights Tip: The best prices from Brussels to Washington, D.C. Dulles Intl are usually found in March or January, booked 78 days in advance, depart on a Friday or Thursday 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 April 30, 2025.

Round-trip from

$477
(Flighttix)

One-way from

$355
(Gotogate)

Popular in

December

Cheapest in

March

Average price

$717
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, 0% potential price rise
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Cheapest flight prices on average. 1% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 30, 2025.

This Flighttix deal was found by Cheapflights users on 4/28. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/129:40 amBRU - IAD
1 stop12h 28mMultiple Airlines
Mon 5/265:40 pmIAD - BRU
1 stop10h 40mMultiple Airlines
Deal found 4/28$477
This Mytrip deal was found by Cheapflights users on 4/28. 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 5/129:40 amBRU - IAD
2 stops17h 28mAir Canada
Mon 5/265:31 pmIAD - BRU
1 stop32h 34mAir Canada
Deal found 4/28$478
This Flighttix deal was found by Cheapflights users on 4/28. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1212:00 pmBRU - IAD
Nonstop8h 15mBrussels Airlines
Mon 5/265:45 pmIAD - BRU
Nonstop7h 30mBrussels Airlines
Deal found 4/28$483
This Flighttix deal was found by Cheapflights users on 4/29. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1512:00 pmBRU - IAD
Nonstop8h 15mLufthansa
Wed 5/285:45 pmIAD - BRU
Nonstop7h 30mLufthansa
Deal found 4/29$484
This United Airlines deal was found by Cheapflights users on 4/29. 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.
Tue 6/37:00 amBRU - IAD
2 stops20h 08mUnited Airlines
Sat 6/1410:20 pmIAD - BRU
1 stop28h 30mUnited Airlines
Deal found 4/29$485
This Expedia deal was found by Cheapflights users on 4/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/209:40 amBRU - IAD
1 stop12h 35mSWISS
Tue 5/278:45 pmIAD - BRU
1 stop11h 30mSWISS
Deal found 4/29$490
This American Airlines deal was found by Cheapflights users on 4/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/33:15 pmBRU - IAD
1 stop10h 55mAmerican Airlines
Thu 9/1110:40 pmIAD - BRU
1 stop29h 15mAmerican Airlines
Deal found 4/28$498
This Booking.com deal was found by Cheapflights users on 4/28. 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 5/129:15 pmBRU - IAD
2 stops25h 41mBritish Airways
Mon 5/268:02 pmIAD - BRU
2 stops17h 33mBritish Airways
Deal found 4/28$504
This Delta deal was found by Cheapflights users on 4/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1510:25 amBRU - IAD
2 stops15h 14mDelta
Wed 5/286:25 amIAD - BRU
2 stops21h 15mDelta
Deal found 4/29$510
This Scandinavian Airlines deal was found by Cheapflights users on 4/28. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/259:15 pmBRU - IAD
2 stops28h 44mScandinavian Airlines
Sun 9/710:05 pmIAD - BRU
2 stops16h 30mScandinavian Airlines
Deal found 4/28$525
This Virgin Atlantic deal was found by Cheapflights users on 4/29. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1310:45 amBRU - IAD
2 stops18h 10mVirgin Atlantic
Fri 6/206:00 amIAD - BRU
2 stops20h 40mVirgin Atlantic
Deal found 4/29$535
This Mytrip deal was found by Cheapflights users on 4/28. 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 5/141:50 pmBRU - IAD
1 stop11h 30mIcelandair
Tue 10/78:30 pmIAD - BRU
1 stop10h 20mIcelandair
Deal found 4/28$547

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 April 30, 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

Mon 5/12

9:40 am-4:08 pm

1 stop12h 28m

Washington, D.C. Dulles Intl

Mon 5/26

5:40 pm-10:20 am

1 stop10h 40m

$477

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Mon 5/12

9:40 am-9:08 pm

2 stops17h 28m

Washington, D.C. Dulles Intl

Mon 5/26

5:31 pm-8:05 am

1 stop32h 34m

$478

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Mon 5/12

12:00 pm-2:15 pm

Nonstop8h 15m

Washington, D.C. Dulles Intl

Mon 5/26

5:45 pm-7:15 am

Nonstop7h 30m

$483

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Tue 6/3

7:00 am-9:08 pm

2 stops20h 08m

Washington, D.C. Dulles Intl

Sat 6/14

10:20 pm-8:50 am

1 stop28h 30m

$485

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Tue 5/20

6:55 am-4:15 pm

1 stop15h 20m

Washington, D.C. Dulles Intl

Thu 5/29

8:45 pm-7:15 pm

1 stop16h 30m

$486

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Wed 9/3

3:15 pm-8:10 pm

1 stop10h 55m

Washington, D.C. Dulles Intl

Sun 9/14

8:19 pm-6:00 pm

2 stops15h 41m

$498

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Mon 5/12

9:15 pm-4:56 pm

2 stops25h 41m

Washington, D.C. Dulles Intl

Mon 5/26

8:02 pm-7:35 pm

2 stops17h 33m

$504

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Thu 5/15

10:25 am-7:39 pm

2 stops15h 14m

Washington, D.C. Dulles Intl

Wed 5/28

6:25 am-9:40 am

2 stops21h 15m

$510

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Mon 8/25

9:15 pm-7:59 pm

2 stops28h 44m

Washington, D.C. Dulles Intl

Sun 9/7

10:05 pm-8:35 pm

2 stops16h 30m

$525

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Fri 6/13

10:45 am-10:11 pm

1 stop17h 26m

Washington, D.C. Dulles Intl

Fri 6/20

6:00 am-8:40 am

2 stops20h 40m

$535

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 28 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 April 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 78 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 $309). Flying from Brussels to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $373). 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 April 30, 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 18% 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 April 30, 2025.

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

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

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.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

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).

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 April 30, 2025.
To help decide which airline to fly from Brussels to Washington, D.C., see what other customers have to say about Delta, Austrian Airlines and SWISS. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,929 reviews

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,929 reviews
Delta
8.0
Very good
7,929 reviews

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Austrian Airlines
7.6
Good
780 reviews
Delta
8.0
Very good
7,929 reviews

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
SWISS
7.5
Good
1,588 reviews
Delta
8.0
Very good
7,929 reviews

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very good
7,929 reviews

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Virgin Atlantic
7.4
Good
642 reviews
Delta
8.0
Very good
7,929 reviews

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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 $478. Other airlines that can offer you cheap pricing are Brussels Airlines, from $483, and Lufthansa, from $484. Air Canada is currently priced 22% 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 $355. 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 (85%), Austrian Airlines (85%), SWISS (85%).

  • 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 $1,290, our data shows the cheapest flight currently is $487. When looking at the most popular route, (Brussels Bruxelles-National - Washington, D.C. Dulles Intl), you can expect to pay $454 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, August is the cheapest month in which you can book a flight from Brussels to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Brussels to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $373). 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 Brussels?

Book flights to Brussels if you plan to visit one of these locations
Alexandria
Arlington
Woodbridge
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Falls Church
Laurel
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National Harbor
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Top 6 airlines flying from Brussels to Dulles Intl

Discover the top 6 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 April 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest$405Average$690FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$456Average$610FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$468Average$619FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$470Average$634FlexibilityNo cancel feeOn-time69%
Brussels AirlinesCheapest$487Average$696FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$518Average$686FlexibilityNo cancel feeOn-time76%

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