Dulles Intl

$320+ 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
אפר' 5 — אפר' 121
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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 מרץ 31, 2025.

Round-trip from

$466
(Scandinavian Airlines)

One-way from

$320
(Mytrip)

Popular in

December

Cheapest in

February

Average price

$625

Good round-trip deal

$616 or less

Good one-way deal

$562 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. 5% potential increase in price ($33 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 March 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 מרץ 31, 2025.

This Scandinavian Airlines deal was found by Cheapflights users on 3/30. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ג' 5/610:20 amBRU - IAD
1 stop15h 39mScandinavian Airlines
א' 5/1810:05 pmIAD - BRU
2 stops16h 30mScandinavian Airlines
Deal found 3/30$466
This Cheapflightsfares deal was found by Cheapflights users on 3/31. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ה' 4/1010:50 amBRU - IAD
1 stop15h 20mMultiple Airlines
ד' 4/3010:40 pmIAD - BRU
1 stop10h 40mMultiple Airlines
Deal found 3/31$471
This Flightnetwork deal was found by Cheapflights users on 3/31. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ב' 4/1410:20 amBRU - IAD
1 stop11h 30mAer Lingus
ב' 4/285:20 pmIAD - BRU
1 stop10h 20mAer Lingus
Deal found 3/31$474
This Booking.com deal was found by Cheapflights users on 3/30. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ב' 4/143:00 pmBRU - IAD
1 stop11h 10mBritish Airways
ב' 4/288:14 pmIAD - BRU
2 stops14h 56mBritish Airways
Deal found 3/30$480
This American Airlines deal was found by Cheapflights users on 3/31. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ו' 5/27:05 amBRU - IAD
1 stop13h 55mAmerican Airlines
ו' 5/95:40 pmIAD - BRU
1 stop10h 15mAmerican Airlines
Deal found 3/31$485
This Icelandair deal was found by Cheapflights users on 3/31. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ב' 5/191:50 pmBRU - IAD
1 stop11h 30mIcelandair
ג' 5/278:30 pmIAD - BRU
1 stop10h 20mIcelandair
Deal found 3/31$500
This Mytrip deal was found by Cheapflights users on 3/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ד' 7/911:35 amBRU - IAD
1 stop33h 05mITA Airways
ו' 7/184:30 pmIAD - BRU
1 stop12h 10mITA Airways
Deal found 3/30$501
This SWISS deal was found by Cheapflights users on 3/31. 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.
ג' 8/128:05 pmBRU - IAD
1 stop26h 10mSWISS
ו' 8/298:45 pmIAD - BRU
1 stop16h 30mSWISS
Deal found 3/31$530
This United Airlines deal was found by Cheapflights users on 3/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ד' 5/147:00 amBRU - IAD
2 stops15h 19mUnited Airlines
ד' 5/2110:10 pmIAD - BRU
2 stops27h 55mUnited Airlines
Deal found 3/30$539
This KLM deal was found by Cheapflights users on 3/31. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ב' 4/1410:25 amBRU - IAD
1 stop11h 10mKLM
ב' 4/2812:11 pmIAD - BRU
1 stop14h 29mKLM
Deal found 3/31$558
This Delta deal was found by Cheapflights users on 3/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ב' 4/1410:25 amBRU - IAD
1 stop11h 10mDelta
ב' 4/2812:29 pmIAD - BRU
2 stops15h 11mDelta
Deal found 3/30$560
This Expedia deal was found by Cheapflights users on 3/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ש' 6/1410:45 amBRU - IAD
Nonstop8h 45mBrussels Airlines
ש' 7/55:35 pmIAD - BRU
Nonstop7h 50mBrussels Airlines
Deal found 3/30$561

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 מרץ 31, 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

ג' 5/6

10:20 am-7:59 pm

1 stop15h 39m

Washington, D.C. Dulles Intl

א' 5/18

10:05 pm-8:35 pm

2 stops16h 30m

$466

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

ה' 4/10

10:50 am-8:10 pm

1 stop15h 20m

Washington, D.C. Dulles Intl

ד' 4/30

10:40 pm-3:20 pm

1 stop10h 40m

$471

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

ב' 4/14

10:20 am-3:50 pm

1 stop11h 30m

Washington, D.C. Dulles Intl

ב' 4/28

5:20 pm-9:40 am

1 stop10h 20m

$474

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

ב' 4/14

3:00 pm-8:10 pm

1 stop11h 10m

Washington, D.C. Dulles Intl

ב' 4/28

8:14 pm-5:10 pm

2 stops14h 56m

$480

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

ו' 5/2

7:05 am-3:00 pm

1 stop13h 55m

Washington, D.C. Dulles Intl

ה' 5/15

10:40 pm-9:55 am

1 stop29h 15m

$485

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

ש' 5/10

1:50 pm-7:20 pm

1 stop11h 30m

Washington, D.C. Dulles Intl

ד' 5/14

8:30 pm-12:50 pm

1 stop10h 20m

$500

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

ד' 7/9

11:35 am-2:40 pm

1 stop33h 05m

Washington, D.C. Dulles Intl

ו' 7/18

4:30 pm-10:40 am

1 stop12h 10m

$501

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

ג' 8/12

8:05 pm-4:15 pm

1 stop26h 10m

Washington, D.C. Dulles Intl

ו' 8/29

8:45 pm-7:15 pm

1 stop16h 30m

$530

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

ד' 5/14

7:00 am-4:19 pm

2 stops15h 19m

Washington, D.C. Dulles Intl

ד' 5/21

10:10 pm-8:05 am

2 stops27h 55m

$539

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

ב' 4/14

6:10 am-3:35 pm

1 stop15h 25m

Washington, D.C. Dulles Intl

ב' 4/28

12:11 pm-8:40 am

1 stop14h 29m

$558

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/31

Showing 1-10 of 29 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 $385). 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 מרץ 31, 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 מרץ 31, 2025.

The most flights from BE0 to IAD are scheduled on a Monday (6 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 מרץ 31, 2025.
See what other customers who have flown with Delta, KLM 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

Entertainment

7.9

Comfort

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

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

Entertainment

7.9

Comfort

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

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

Entertainment

7.9

Comfort

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

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

Entertainment

7.9

Comfort

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

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

Entertainment

7.9

Comfort

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

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

Entertainment

7.9

Comfort

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

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?

    $339 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 Scandinavian Airlines, with prices starting from $471 and $479, 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 (90%), Austrian Airlines (90%), Brussels Airlines (90%).

  • 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 $1,742, our data indicates the cheapest price to be $437. The most popular route (Brussels Bruxelles-National - Washington, D.C. Dulles Intl), is priced around $434.

  • 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 $385). 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
Arlington
Alexandria
Fairfax
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Springfield
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Fredericksburg
Woodbridge
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Falls Church
Laurel
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Gettysburg
National Harbor
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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 7 airlines flying from Belgium to Dulles Intl

Discover the top 7 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 מרץ 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$381Average$630FlexibilityNo cancel feeOn-time76%
PLAYCheapest$405Average$690FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$456Average$628FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$468Average$619FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$499Average$672FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$518Average$674FlexibilityNo cancel feeOn-time76%
Brussels AirlinesCheapest$518Average$704FlexibilityNo cancel feeOn-timeN/A
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