Dulles Intl

$351+ Cheap flights from Belgium 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 11/5. Fares are subject to change and may not be available on all flights or dates of travel.
BRU — IAD
out 17 — out 241
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Cheap flight deals from Belgium to Dulles Intl

Keep the following information in mind while searching for Belgium to Dulles Intl flight deals. Data was last updated setembro 17, 2025.

Round-trip from

$512
(Flighttix)

One-way from

$351
(Mytrip)

Popular in

December

Cheapest in

February

Average price

$560

Good round-trip deal

$531 or less

Good one-way deal

$582 or less
From Belgium to Washington, D.C. Dulles Intl
One-way flight from Belgium to Washington, D.C. Dulles Intl
Highest demand for flights based on searches. 6% potential increase in price ($40 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($9 potential savings vs. average RT price).
Average for round-trip flights in September 2025
Price to beat on a round-trip flight from Belgium to Washington, D.C. Dulles Intl.
Price to beat on a one-way flight from Belgium to Washington, D.C. Dulles Intl.

Find flight deals from Belgium to Dulles Intl

Cheapest flights from Belgium to Dulles Intl
Explore the most affordable flight options available from Belgium to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on setembro 17, 2025.

This Flighttix deal was found by Cheapflights users on 9/17. 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.
qui 10/309:00 amBRU - IAD
1 stop12h 50mUnited Airlines
dom 11/95:40 pmIAD - BRU
1 stop10h 40mUnited Airlines
Deal found 9/17$512
This Flighttix deal was found by Cheapflights users on 9/16. 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.
qui 9/2512:00 pmBRU - IAD
Nonstop8h 25mLufthansa
qua 10/85:45 pmIAD - BRU
Nonstop7h 30mLufthansa
Deal found 9/16$513
This Flighttix deal was found by Cheapflights users on 9/16. 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.
qui 9/2510:45 amBRU - IAD
Nonstop8h 45mMultiple Airlines
qua 10/85:45 pmIAD - BRU
Nonstop7h 30mMultiple Airlines
Deal found 9/16$514
This Flighttix deal was found by Cheapflights users on 9/15. 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.
qui 9/2510:30 amBRU - IAD
1 stop11h 20mLufthansa
dom 9/283:25 pmIAD - BRU
1 stop10h 20mLufthansa
Deal found 9/15$515
This Flighttix deal was found by Cheapflights users on 9/16. 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.
qui 9/2512:00 pmBRU - IAD
Nonstop8h 25mUnited Airlines
qua 10/85:45 pmIAD - BRU
Nonstop7h 30mUnited Airlines
Deal found 9/16$518
This United Airlines deal was found by Cheapflights users on 9/16. 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.
qua 10/87:00 amBRU - IAD
1 stop14h 50mUnited Airlines
ter 10/286:30 amIAD - BRU
1 stop20h 25mUnited Airlines
Deal found 9/16$519
This United Airlines deal was found by Cheapflights users on 9/15. 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.
seg 9/227:00 amBRU - IAD
1 stop12h 30mUnited Airlines
dom 10/59:35 amIAD - BRU
1 stop16h 30mUnited Airlines
Deal found 9/15$520
This United Airlines deal was found by Cheapflights users on 9/17. 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.
sex 10/172:25 pmBRU - IAD
1 stop11h 35mMultiple Airlines
seg 11/105:25 pmIAD - BRU
1 stop10h 35mMultiple Airlines
Deal found 9/17$521
This United Airlines deal was found by Cheapflights users on 9/17. 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.
ter 10/77:00 amBRU - IAD
1 stop14h 15mUnited Airlines
qua 10/296:45 pmIAD - BRU
Nonstop7h 30mUnited Airlines
Deal found 9/17$522
This American Airlines deal was found by Cheapflights users on 9/16. 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.
ter 10/710:55 amBRU - IAD
1 stop11h 00mAmerican Airlines
dom 11/29:12 amIAD - BRU
2 stops28h 43mAmerican Airlines
Deal found 9/16$523
This Mytrip deal was found by Cheapflights users on 9/17. 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.
qui 10/3010:30 amCRL - IAD
2 stops34h 10mMultiple Airlines
dom 11/98:30 pmIAD - CRL
2 stops20h 00mMultiple Airlines
Deal found 9/17$543
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
seg 10/271:10 pmCRL - IAD
1 stop12h 20mMultiple Airlines
dom 11/25:05 pmIAD - CRL
1 stop13h 40mMultiple Airlines
Deal found 9/15$619

Cheapflights Fare Finder

 
Customize your flight search to find flights from Belgium 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 setembro 17, 2025.
Use the filters below to find and compare flights from Belgium to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Belgium

Fly to

Dulles Intl

Route

Depart

Return

Price

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

sex 11/7

9:00 am-2:35 pm

1 stop11h 35m

Washington, D.C. Dulles Intl

qui 11/20

9:45 am-7:50 am

1 stop16h 05m

$519

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

qui 10/9

8:30 am-3:50 pm

1 stop13h 20m

Washington, D.C. Dulles Intl

dom 10/12

5:45 pm-7:15 am

Nonstop7h 30m

$519

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

qua 11/12

7:00 am-4:21 pm

2 stops15h 21m

Washington, D.C. Dulles Intl

qui 11/20

9:45 am-7:50 am

1 stop16h 05m

$519

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

ter 11/11

7:00 am-8:15 pm

1 stop19h 15m

Washington, D.C. Dulles Intl

qui 11/20

9:45 am-7:50 am

1 stop16h 05m

$519

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

qui 11/13

2:25 pm-8:15 pm

1 stop11h 50m

Washington, D.C. Dulles Intl

qui 11/20

5:45 pm-7:15 am

Nonstop7h 30m

$519

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

sex 10/17

2:25 pm-8:00 pm

1 stop11h 35m

Washington, D.C. Dulles Intl

seg 11/10

5:45 pm-7:15 am

Nonstop7h 30m

$519

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

sáb 11/8

7:00 am-3:50 pm

1 stop14h 50m

Washington, D.C. Dulles Intl

qui 11/20

5:45 pm-7:15 am

Nonstop7h 30m

$519

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

sex 10/17

2:25 pm-8:00 pm

1 stop11h 35m

Washington, D.C. Dulles Intl

ter 11/11

5:45 pm-7:15 am

Nonstop7h 30m

$519

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

sex 3/13

9:00 am-3:35 pm

1 stop11h 35m

Washington, D.C. Dulles Intl

seg 3/23

6:45 pm-7:15 am

Nonstop7h 30m

$519

BrusselsWashington, D.C.

CRL - IAD

CRLIAD

Charleroi Brussels

qui 10/30

10:30 am-3:40 pm

2 stops34h 10m

Washington, D.C. Dulles Intl

dom 11/9

8:30 pm-10:30 pm

2 stops20h 00m

$543

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 35 results
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Best time to book a flight from Belgium to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Belgium 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 Belgium to Washington, D.C. Dulles Intl Airport

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

Currently, August is the cheapest month in which you can book a flight from Belgium to Washington, D.C. Dulles Intl Airport (average of $292). Flying from Belgium 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 BE to IAD?

Find hourly flight availability from Belgium 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 setembro 17, 2025.

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

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

Explore weekly flight availability from Belgium 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 setembro 17, 2025.

The most flights from BE0 to IAD are scheduled on a Monday (7 on average). You will have fewer flight options on Tuesday, 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 setembro 17, 2025.
Get a feel of what it's like to fly with United Airlines, Brussels Airlines, and Lufthansa from Belgium to Washington, D.C. Dulles Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

7.1

Food

6.6

Comfort

7.3

Overall

7.4

Boarding

7.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.

Entertainment

7.1

Food

6.6

Comfort

7.3

Overall

7.4

Boarding

7.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.

Entertainment

7.1

Food

6.6

Comfort

7.3

Overall

7.4

Boarding

7.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.

Entertainment

7.1

Food

6.6

Comfort

7.3

Overall

7.4

Boarding

7.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.

Entertainment

7.1

Food

6.6

Comfort

7.3

Overall

7.4

Boarding

7.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.

Related info for your journey

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

    Departing from Belgium to Washington, D.C. Dulles Intl Airport will take you 11h 35m. Airlines will cover a distance of 3879 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most reliable airlines from Belgium 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 Belgium to Washington, D.C. Dulles Intl Airport on time: Air Canada (80%), Austrian Airlines (80%), SWISS (80%).

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

    Looking for the cheapest flight from Belgium to Washington, D.C. Dulles Intl Airport? While on average our users pay $673, our data indicates the cheapest price to be $515. The most popular route (Brussels Bruxelles-National - Washington, D.C. Dulles Intl), is priced around $427.

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

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

  • How can I find direct flights from Belgium to Dulles Intl?

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

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

    Yes. Cheapflights offers flight deals from Belgium 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 Belgium to Washington, D.C. Dulles Intl Airport?

    Currently, August is the cheapest month in which you can book a flight from Belgium to Washington, D.C. Dulles Intl Airport (average of $292). Flying from Belgium 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
Springfield
Gaithersburg
Fredericksburg
Linthicum Heights
Fairfax
Falls Church
Owings Mills
Manassas
Rockville
Hanover
Oxon Hill
Laurel
Towson
National Harbor
Dundalk

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Belgium to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.

Top 4 airlines flying from Belgium to Dulles Intl

Discover the top 4 airlines that operate flights from Belgium 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 setembro 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$456Average$558FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$470Average$636FlexibilityNo cancel feeOn-time69%
Brussels AirlinesCheapest$496Average$668FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$521Average$698FlexibilityNo cancel feeOn-time76%

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