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 12h 55m. Airlines will cover a distance of 3879 mi.

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

$425 is the cheapest one-way deal found within the past few days, from Aer Lingus. You may also be able to find cheap deals on Icelandair and Brussels Airlines, with prices starting from $441 and $526, respectively.

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.

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).

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 $952, our data indicates the cheapest price to be $639. The most popular route (Brussels Bruxelles-National - Washington, D.C. Dulles Intl), is priced around $506.

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: Lufthansa (85%), Air Canada (84%), Austrian Airlines (84%).

What are the most popular airlines that fly from Belgium to Washington, D.C. Dulles Intl Airport?

Consider United Airlines, Brussels Airlines or Lufthansa when booking your flight. These represent the most popular airlines when flying from Belgium to Washington, D.C. Dulles Intl Airport.

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.

$356+ Flights from Belgium to Washington, D.C. Dulles Intl Airport

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Belgium to Dulles Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 December 18, 2025.

Thu 12/256:00 amBRU - IAD

1 stop15h 15mTAP AIR PORTUGAL

Tue 12/305:30 pmIAD - BRU

1 stop11h 30mTAP AIR PORTUGAL

Deal found 12/17

$668

Wed 12/2411:50 amBRU - IAD

1 stop15h 10mTAP AIR PORTUGAL

Mon 12/295:30 pmIAD - BRU

1 stop17h 35mTAP AIR PORTUGAL

Deal found 12/16

$706

Wed 12/245:55 pmBRU - IAD

1 stop27h 20mTAP AIR PORTUGAL

Tue 12/305:30 pmIAD - BRU

1 stop24h 20mTAP AIR PORTUGAL

Deal found 12/17

$708

Tue 12/236:00 amBRU - IAD

1 stop14h 35mTAP AIR PORTUGAL

Mon 12/295:30 pmIAD - BRU

1 stop11h 30mTAP AIR PORTUGAL

Deal found 12/16

$712

Wed 12/2411:55 amBRU - IAD

Nonstop8h 40mBrussels Airlines

Tue 12/305:45 pmIAD - BRU

Nonstop7h 30mBrussels Airlines

Deal found 12/17

$730

Wed 12/242:25 pmBRU - IAD

1 stop11h 50mMultiple Airlines

Tue 12/305:45 pmIAD - BRU

Nonstop7h 30mMultiple Airlines

Deal found 12/17

$731

Wed 12/175:55 pmBRU - IAD

1 stop27h 20mTAP AIR PORTUGAL

Tue 12/305:30 pmIAD - BRU

1 stop24h 20mTAP AIR PORTUGAL

Deal found 12/16

$750

Tue 12/2310:30 amBRU - IAD

1 stop15h 45mUnited Airlines

Fri 1/26:30 amIAD - BRU

1 stop20h 25mUnited Airlines

Deal found 12/16

$753

Fri 12/267:00 amBRU - IAD

1 stop13h 35mUnited Airlines

Fri 1/28:15 amIAD - BRU

1 stop18h 40mUnited Airlines

Deal found 12/17

$754

Wed 12/242:25 pmBRU - IAD

1 stop11h 50mUnited Airlines

Tue 12/3012:45 pmIAD - BRU

2 stops15h 25mUnited Airlines

Deal found 12/17

$759

Wed 12/246:55 amCRL - IAD

2 stops20h 05mMultiple Airlines

Tue 12/306:00 pmIAD - CRL

2 stops21h 15mMultiple Airlines

Deal found 12/16

$1,044

Tue 12/239:25 pmCRL - IAD

2 stops29h 35mMultiple Airlines

Mon 12/2910:55 pmIAD - CRL

2 stops18h 00mMultiple Airlines

Deal found 12/15

$1,048

Best flights from Belgium to Dulles Intl
Discover carefully curated flight deals from Belgium to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2025.

Thu 1/2910:20 amBRU - IAD

1 stop12h 55mScandinavian Airlines

Mon 2/28:30 pmIAD - BRU

2 stops32h 20mScandinavian Airlines

Deal found 12/15

$569

Fri 1/1611:55 amBRU - IAD

Nonstop8h 40mLufthansa

Thu 1/295:45 pmIAD - BRU

Nonstop7h 30mLufthansa

Deal found 12/17

$631

Fri 1/1610:00 amBRU - IAD

2 stops17h 25mAir Canada

Thu 1/299:45 amIAD - BRU

1 stop16h 05mAir Canada

Deal found 12/17

$637

Mon 1/126:00 amBRU - IAD

1 stop15h 15mTAP AIR PORTUGAL

Wed 1/2810:30 pmIAD - BRU

1 stop12h 35mTAP AIR PORTUGAL

Deal found 12/16

$638

Sun 1/188:50 amCRL - IAD

2 stops18h 10mMultiple Airlines

Sun 1/2510:30 pmIAD - CRL

2 stops17h 45mMultiple Airlines

Deal found 12/17

$671

Thu 2/2610:20 amBRU - IAD

1 stop12h 55mScandinavian Airlines

Mon 3/28:30 pmIAD - BRU

1 stop31h 10mScandinavian Airlines

Deal found 12/17

$588

Fri 1/166:25 amCRL - IAD

2 stops20h 35mMultiple Airlines

Thu 1/295:30 pmIAD - CRL

2 stops15h 15mMultiple Airlines

Deal found 12/17

$685

Thu 5/289:10 pmBRU - IAD

2 stops25h 40mScandinavian Airlines

Thu 6/118:20 pmIAD - BRU

1 stop12h 15mScandinavian Airlines

Deal found 12/16

$634

Sat 1/1710:20 amBRU - IAD

1 stop14h 30mScandinavian Airlines

Sat 1/248:30 pmIAD - BRU

2 stops32h 20mScandinavian Airlines

Deal found 12/16

$634

Sat 3/285:15 pmCRL - IAD

2 stops26h 50mMultiple Airlines

Sun 4/55:40 pmIAD - CRL

2 stops16h 00mMultiple Airlines

Deal found 12/17

$712

Thu 1/157:25 amCRL - IAD

2 stops19h 01mMultiple Airlines

Thu 1/225:30 pmIAD - CRL

2 stops22h 55mMultiple Airlines

Deal found 12/16

$759

Sat 1/179:40 pmCRL - IAD

2 stops28h 46mMultiple Airlines

Sat 1/245:30 pmIAD - CRL

2 stops22h 35mMultiple Airlines

Deal found 12/16

$762

Fri 1/166:25 amCRL - IAD

2 stops20h 35mMultiple Airlines

Fri 1/2310:30 pmIAD - CRL

2 stops16h 15mMultiple Airlines

Deal found 12/16

$781

Tue 4/1412:25 pmCRL - IAD

1 stop33h 05mMultiple Airlines

Tue 4/285:05 pmIAD - CRL

2 stops15h 45mMultiple Airlines

Deal found 12/17

$802

Last-minute flights from Belgium to Dulles Intl
Discover last-minute flight deals from Belgium to Dulles Intl. Data last updated December 18, 2025 and is based on user searches.

Sun 1/118:30 pmBRU - IAD

2 stops28h 39mScandinavian Airlines

Sat 1/178:30 pmIAD - BRU

2 stops32h 20mScandinavian Airlines

Deal found 12/16

$633

Thu 1/157:25 amCRL - IAD

2 stops19h 01mMultiple Airlines

Thu 1/225:30 pmIAD - CRL

2 stops22h 55mMultiple Airlines

Deal found 12/16

$759

Fri 1/167:20 pmBRU - IAD

2 stops29h 30mScandinavian Airlines

Thu 1/298:30 pmIAD - BRU

1 stop17h 20mScandinavian Airlines

Deal found 12/17

$577

Fri 1/1611:55 amBRU - IAD

Nonstop8h 40mMultiple Airlines

Thu 1/295:25 pmIAD - BRU

1 stop10h 35mMultiple Airlines

Deal found 12/16

$630

Fri 1/166:25 amCRL - IAD

2 stops20h 35mMultiple Airlines

Thu 1/295:30 pmIAD - CRL

2 stops15h 15mMultiple Airlines

Deal found 12/17

$685

Fri 1/166:25 amCRL - IAD

2 stops20h 35mMultiple Airlines

Fri 1/2310:30 pmIAD - CRL

2 stops16h 15mMultiple Airlines

Deal found 12/16

$781

Sat 1/179:40 pmCRL - IAD

2 stops28h 46mMultiple Airlines

Sat 1/245:30 pmIAD - CRL

2 stops22h 35mMultiple Airlines

Deal found 12/16

$762

Sun 1/188:50 amCRL - IAD

2 stops18h 10mMultiple Airlines

Sun 1/2510:30 pmIAD - CRL

2 stops17h 45mMultiple Airlines

Deal found 12/17

$671

Thu 1/2910:20 amBRU - IAD

1 stop12h 55mScandinavian Airlines

Mon 2/28:30 pmIAD - BRU

1 stop17h 20mScandinavian Airlines

Deal found 12/16

$566

Fri 1/302:25 pmBRU - IAD

1 stop11h 50mLufthansa

Fri 2/65:45 pmIAD - BRU

Nonstop7h 30mLufthansa

Deal found 12/16

$619

Fri 1/302:25 pmBRU - IAD

1 stop11h 50mMultiple Airlines

Fri 2/612:55 pmIAD - BRU

2 stops12h 55mMultiple Airlines

Deal found 12/16

$628

One-way flights from Belgium to Dulles Intl
Search for one-way flight options from Belgium to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated December 18, 2025.

Wed 2/45:00 pmBRU - IAD

3 stops45h 40mMultiple Airlines

Deal found 12/16

$356

Wed 2/47:40 pmCRL - IAD

3 stops43h 00mMultiple Airlines

Deal found 12/16

$363

Wed 1/148:55 pmBRU - IAD

2 stops24h 20mMultiple Airlines

Deal found 12/16

$382

Wed 1/1410:25 amCRL - IAD

2 stops34h 50mMultiple Airlines

Deal found 12/16

$393

Sun 2/110:20 pmBRU - IAD

3 stops48h 10mMultiple Airlines

Deal found 12/17

$393

Tue 1/136:20 amCRL - IAD

2 stops44h 40mMultiple Airlines

Deal found 12/17

$395

Fri 1/307:10 pmBRU - IAD

2 stops26h 05mMultiple Airlines

Deal found 12/16

$407

Mon 6/83:00 pmBRU - IAD

1 stop11h 20mMultiple Airlines

Deal found 12/17

$408

Sun 2/17:15 amCRL - IAD

2 stops19h 45mMultiple Airlines

Deal found 12/17

$410

Tue 1/139:55 pmBRU - IAD

2 stops29h 05mMultiple Airlines

Deal found 12/17

$418

Fri 1/308:45 pmCRL - IAD

3 stops24h 30mMultiple Airlines

Deal found 12/16

$422

Mon 6/84:10 pmCRL - IAD

2 stops28h 55mMultiple Airlines

Deal found 12/17

$424

Find flight deals from Belgium to Dulles Intl

Round-trip from	$566 (Scandinavian Airlines)
One-way from	$356 (Kiwi.com)
Popular in	December
Cheapest in	September
Average price	$705
Good round-trip deal	$751 or less
Good one-way deal	$828 or less

From Belgium to Washington, D.C. Dulles Intl

Search Deals

One-way flight from Belgium to Washington, D.C. Dulles Intl

Search Deals

Highest demand for flights based on searches. 7% potential increase in price ($47 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($9 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Price to beat on a round-trip flight from Belgium to Washington, D.C. Dulles Intl.

Search Deals

Price to beat on a one-way flight from Belgium to Washington, D.C. Dulles Intl.

Search Deals

Cheapflights Fare Finder

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

Fly to

Route

Depart

Return

Price

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Thu 1/29

10:20 am-5:15 pm

1 stop12h 55m

Washington, D.C. Dulles Intl

Mon 2/2

8:30 pm-10:50 am

2 stops32h 20m

$569

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Thu 2/26

10:20 am-5:15 pm

1 stop12h 55m

Washington, D.C. Dulles Intl

Mon 3/2

8:30 pm-9:40 am

1 stop31h 10m

$588

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Fri 1/16

11:55 am-2:35 pm

Nonstop8h 40m

Washington, D.C. Dulles Intl

Thu 1/29

5:45 pm-7:15 am

Nonstop7h 30m

$631

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Thu 5/28

9:10 pm-4:50 pm

2 stops25h 40m

Washington, D.C. Dulles Intl

Thu 6/11

8:20 pm-2:35 pm

1 stop12h 15m

$634

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Sat 1/17

10:20 am-6:50 pm

1 stop14h 30m

Washington, D.C. Dulles Intl

Sat 1/24

8:30 pm-10:50 am

2 stops32h 20m

$634

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Fri 1/16

10:00 am-9:25 pm

2 stops17h 25m

Washington, D.C. Dulles Intl

Thu 1/29

9:45 am-7:50 am

1 stop16h 05m

$637

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Mon 1/12

6:00 am-3:15 pm

1 stop15h 15m

Washington, D.C. Dulles Intl

Wed 1/28

10:30 pm-5:05 pm

1 stop12h 35m

$638

BrusselsWashington, D.C.

CRL - IAD

CRLIAD

Charleroi Brussels

Sun 1/18

8:50 am-9:00 pm

2 stops18h 10m

Washington, D.C. Dulles Intl

Sun 1/25

10:30 pm-10:15 pm

2 stops17h 45m

$671

BrusselsWashington, D.C.

CRL - IAD

CRLIAD

Charleroi Brussels

Fri 1/16

6:25 am-9:00 pm

2 stops20h 35m

Washington, D.C. Dulles Intl

Thu 1/29

5:30 pm-2:45 pm

2 stops15h 15m

$685

BrusselsWashington, D.C.

CRL - IAD

CRLIAD

Charleroi Brussels

Sat 3/28

5:15 pm-3:05 pm

2 stops26h 50m

Washington, D.C. Dulles Intl

Sun 4/5

5:40 pm-3:40 pm

2 stops16h 00m

$712

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 30 results

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, May is the cheapest month in which you can book a flight from Belgium to Washington, D.C. Dulles Intl Airport (average of $417). Flying from Belgium to Washington, D.C. Dulles Intl Airport in December is currently the most expensive (average of $559). 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?

Unlike in the morning, when flights are generally more expensive, you can save up to 17% on flights from Belgium to Washington, D.C. Dulles Intl Airport by exploring options for tickets in the afternoon.

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

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).

How often are flights from Belgium to Washington, D.C. delayed?

About 17% of weekly flights between Belgium and Washington, D.C. have experienced delays in the past year, with the average delay time being 146 minutes.

What is the most punctual flight time for Belgium to Washington, D.C. flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Sunday tends to have the lowest number of delays on this route, whereas Monday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Belgium to Washington, D.C. flights?

Over the last year, United Airlines have had the lowest number of delays on this route, with just 12% of flights being delayed.

Reviews of airlines servicing Dulles Intl

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.

United Airlines

7.4

Good

9,093 reviews

Reviews

1 / 20

4.0

Okay

Kevin,Dec 2025

BOS - EWR

Seems like every United flight has a delay and it’s always someone else’s fault. Step up and take some accountability

United Airlines

7.4

Good

9,093 reviews

United Airlines

7.4

Good

9,093 reviews

Reviews

1 / 20

4.0

Okay

Kevin,Dec 2025

BOS - EWR

Seems like every United flight has a delay and it’s always someone else’s fault. Step up and take some accountability

Brussels Airlines

7.2

Good

375 reviews

United Airlines

7.4

Good

9,093 reviews

Reviews

1 / 20

4.0

Okay

Kevin,Dec 2025

BOS - EWR

Seems like every United flight has a delay and it’s always someone else’s fault. Step up and take some accountability

Lufthansa

6.8

Okay

7,635 reviews

United Airlines

7.4

Good

9,093 reviews

Reviews

1 / 20

4.0

Okay

Kevin,Dec 2025

BOS - EWR

Seems like every United flight has a delay and it’s always someone else’s fault. Step up and take some accountability

British Airways

6.7

Okay

7,585 reviews

United Airlines

7.4

Good

9,093 reviews

Reviews

1 / 20

4.0

Okay

Kevin,Dec 2025

BOS - EWR

Seems like every United flight has a delay and it’s always someone else’s fault. Step up and take some accountability

Related info for your journey

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 12h 55m. Airlines will cover a distance of 3879 mi.
What are the cheapest airlines to fly from Belgium to Washington, D.C. Dulles Intl Airport one-way?
$425 is the cheapest one-way deal found within the past few days, from Aer Lingus. You may also be able to find cheap deals on Icelandair and Brussels Airlines, with prices starting from $441 and $526, 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: Lufthansa (85%), Air Canada (84%), Austrian Airlines (84%).
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 $952, our data indicates the cheapest price to be $639. The most popular route (Brussels Bruxelles-National - Washington, D.C. Dulles Intl), is priced around $506.
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, May is the cheapest month in which you can book a flight from Belgium to Washington, D.C. Dulles Intl Airport (average of $417). Flying from Belgium to Washington, D.C. Dulles Intl Airport in December is currently the most expensive (average of $559). 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

Alexandria

Woodbridge

Tysons

Arlington

Owings Mills

Springfield

Hanover

Silver Spring

Fredericksburg

Linthicum Heights

Rockville

Laurel

Towson

Manassas

National Harbor

Bowie

Largo

McLean

Clinton

Cordova

Browse thousands of different options on Cheapflights for your next trip

Top 4 airlines flying from Belgium to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest$456	Average$556	FlexibilityNo cancel fee	On-time70%
Brussels Airlines	Cheapest$496	Average$653	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$522	Average$668	FlexibilityNo cancel fee	On-time69%
Lufthansa	Cheapest$528	Average$769	FlexibilityNo cancel fee	On-time76%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$356+ 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 2/4. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Belgium to Dulles Intl with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Belgium to Dulles Intl

Cheapest flights from Belgium to Dulles IntlExplore 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 December 18, 2025.

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 December 18, 2025.

Find 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 December 18, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Cheapflights Fare Finder

Use the filters below to find and compare flights from Belgium to Washington, D.C. Dulles Intl Airport that are best for you.

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.

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?

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 December 18, 2025.

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

How often are flights from Belgium to Washington, D.C. delayed?

What is the most punctual flight time for Belgium to Washington, D.C. flights?

What day of the week experiences the fewest flight delays on this route?

Which airline has the best punctuality record on Belgium to Washington, D.C. flights?

Reviews of airlines servicing Dulles Intl

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?

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

What are the most reliable airlines from Belgium to Washington, D.C. Dulles Intl Airport?

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

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

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

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

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

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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

100% Free

Book with Flexibility

Travel Smart

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 December 18, 2025.