Dulles Intl

$355+ 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 5/7. Fares are subject to change and may not be available on all flights or dates of travel.
BRU — IAD
May 4 — May 111
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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 April 29, 2025.

Round-trip from

$477
(Flighttix)

One-way from

$355
(Gotogate)

Popular in

December

Cheapest in

September

Average price

$594

Good round-trip deal

$587 or less

Good one-way deal

$616 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. 7% potential increase in price ($48 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($10 potential savings vs. average RT price).
Average for round-trip flights in April 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 April 29, 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 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 April 29, 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

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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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 $309). Flying from Belgium 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 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 April 29, 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 April 29, 2025.

The most flights from BE0 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 29, 2025.
See what other customers who have flown with Delta, Austrian Airlines and SWISS from Belgium to Washington, D.C. have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

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
8.0
Very good
8.0
Very good

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

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
8.0
Very good

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

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
8.0
Very good

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

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
8.0
Very good

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

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
8.0
Very good

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

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

    $355 is the cheapest one-way deal found within the past few days, from TAP AIR PORTUGAL. You may also be able to find cheap deals on Aer Lingus and Lufthansa, with prices starting from $453 and $529, respectively.

  • 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 (85%), Austrian Airlines (85%), SWISS (85%).

  • 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 $1,290, our data indicates the cheapest price to be $487. The most popular route (Brussels Bruxelles-National - Washington, D.C. Dulles Intl), is priced around $454.

  • 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 $309). Flying from Belgium 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 Belgium?

Book flights to Belgium if you plan to visit one of these locations
Alexandria
Arlington
Woodbridge
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Fairfax
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Fredericksburg
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Falls Church
Laurel
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National Harbor
Oxon Hill

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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 6 airlines flying from Belgium to Dulles Intl

Discover the top 6 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 April 29, 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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