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Dulles Intl

$327+ 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 8/24. Fares are subject to change and may not be available on all flights or dates of travel.
BRU — IAD
Jul 2 — Jul 91
Thu 7/2
Thu 7/9
1 adult, Economy
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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 June 2, 2026.

This Gotogate deal was found by Cheapflights users on 5/29. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:55 pm
BRU
-
IAD
1 stop25h 35m
ITA Airways
Thu 9/34:30 pm
IAD
-
BRU
1 stop12h 15m
ITA Airways
Deal found 5/29$610
This Gotogate deal was found by Cheapflights users on 5/30. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/36:55 pm
BRU
-
IAD
1 stop25h 35m
ITA Airways
Thu 9/244:30 pm
IAD
-
BRU
1 stop12h 15m
ITA Airways
Deal found 5/30$622
This Mytrip deal was found by Cheapflights users on 5/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/911:35 am
BRU
-
IAD
1 stop32h 55m
ITA Airways
Sat 7/254:30 pm
IAD
-
BRU
1 stop19h 25m
ITA Airways
Deal found 5/29$625
This Mytrip deal was found by Cheapflights users on 6/1. 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.
Thu 7/1611:35 am
BRU
-
IAD
1 stop32h 55m
ITA Airways
Sun 7/264:30 pm
IAD
-
BRU
1 stop12h 15m
ITA Airways
Deal found 6/1$627
This oojo deal was found by Cheapflights users on 6/1. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1011:35 am
BRU
-
IAD
1 stop32h 55m
ITA Airways
Tue 7/284:30 pm
IAD
-
BRU
1 stop12h 15m
ITA Airways
Deal found 6/1$631
This oojo deal was found by Cheapflights users on 5/29. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/1011:35 am
BRU
-
IAD
1 stop32h 55m
ITA Airways
Mon 8/314:30 pm
IAD
-
BRU
1 stop12h 15m
ITA Airways
Deal found 5/29$632
This ITA Airways deal was found by Cheapflights users on 5/29. 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 ITA Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/126:55 pm
BRU
-
IAD
1 stop25h 35m
ITA Airways
Thu 8/204:30 pm
IAD
-
BRU
1 stop19h 25m
ITA Airways
Deal found 5/29$641
This ITA Airways deal was found by Cheapflights users on 6/1. 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 ITA Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/266:55 pm
BRU
-
IAD
1 stop25h 35m
ITA Airways
Sun 8/304:30 pm
IAD
-
BRU
1 stop19h 25m
ITA Airways
Deal found 6/1$642
This ITA Airways deal was found by Cheapflights users on 6/1. 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 ITA Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/226:55 pm
BRU
-
IAD
1 stop25h 35m
ITA Airways
Fri 8/74:30 pm
IAD
-
BRU
1 stop19h 25m
ITA Airways
Deal found 6/1$643
This ITA Airways deal was found by Cheapflights users on 5/31. 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 ITA Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/286:55 pm
BRU
-
IAD
1 stop25h 35m
ITA Airways
Sun 9/134:30 pm
IAD
-
BRU
1 stop12h 15m
ITA Airways
Deal found 5/31$644
This Mytrip deal was found by Cheapflights users on 5/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/103:05 pm
CRL
-
IAD
2 stops35h 30m
Multiple Airlines
Mon 8/318:30 pm
IAD
-
CRL
2 stops18h 05m
Multiple Airlines
Deal found 5/29$822
This Kiwi.com deal was found by Cheapflights users on 6/1. 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.
Thu 9/39:05 pm
CRL
-
IAD
2 stops24h 05m
Multiple Airlines
Wed 9/168:55 pm
IAD
-
CRL
1 stop29h 45m
Multiple Airlines
Deal found 6/1$848

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 June 2, 2026.

Round-trip from

$610
(Gotogate)

One-way from

$327
(Kiwi.com)

Popular in

May

Cheapest in

September

Average price

$737

Good round-trip deal

$797 or less

Good one-way deal

$882 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. 6% potential increase in price ($48 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in June 2026
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

 
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 June 2, 2026.
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

Cheapest round-trip

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Fri 8/21

6:55 pm-2:30 pm

1 stop25h 35m

Washington, D.C. Dulles Intl

Tue 8/25

4:30 pm-10:45 am

1 stop12h 15m

$641

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Wed 8/26

6:55 pm-2:30 pm

1 stop25h 35m

Washington, D.C. Dulles Intl

Sun 8/30

4:30 pm-5:55 pm

1 stop19h 25m

$642

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Sat 8/29

6:55 pm-2:30 pm

1 stop25h 35m

Washington, D.C. Dulles Intl

Mon 9/14

4:30 pm-5:55 pm

1 stop19h 25m

$644

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Fri 10/16

3:55 pm-3:10 pm

1 stop29h 15m

Washington, D.C. Dulles Intl

Fri 10/30

11:30 pm-5:05 pm

1 stop12h 35m

$752
Quickest round-trip

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Tue 8/11

8:35 am-3:15 pm

1 stop12h 40m

Washington, D.C. Dulles Intl

Mon 8/24

5:40 pm-7:15 am

Nonstop7h 35m

$760

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Wed 7/29

10:30 am-4:05 pm

1 stop11h 35m

Washington, D.C. Dulles Intl

Wed 8/19

6:30 pm-1:15 pm

1 stop12h 45m

$760

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Tue 6/30

10:30 am-3:55 pm

1 stop11h 25m

Washington, D.C. Dulles Intl

Tue 7/7

8:20 pm-2:15 pm

1 stop11h 55m

$761

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Wed 10/21

8:35 am-4:05 pm

1 stop13h 30m

Washington, D.C. Dulles Intl

Fri 10/30

6:45 pm-7:15 am

Nonstop7h 30m

$762

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Mon 8/10

6:20 am-4:05 pm

1 stop15h 45m

Washington, D.C. Dulles Intl

Mon 8/17

5:35 pm-7:25 am

Nonstop7h 50m

$762

BrusselsWashington, D.C.

BRU - IAD

BRUIAD

Brussels Bruxelles-National

Fri 6/26

10:30 am-3:55 pm

1 stop11h 25m

Washington, D.C. Dulles Intl

Fri 7/3

6:33 am-7:10 am

2 stops18h 37m

$763

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/29

Showing 1-10 of 38 resultsSorted by cheapest first
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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, 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 July is currently the most expensive (average of $580). 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 June 2, 2026.

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 June 2, 2026.

The most flights from BE0 to IAD are scheduled on a Monday (8 on average). You will have fewer flight options on Tuesday, 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 18% of weekly flights between Belgium and Washington, D.C. have experienced delays in the past year, with the average delay time being 135 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 evening tend to experience delays more often.

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

Tuesday 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 13% of flights being delayed.

How far ahead should I book a flight from Belgium to Washington, D.C. Dulles Intl Airport?

To ensure you get the cheapest price possible for a flight from Belgium to Washington, D.C. Dulles Intl Airport, you should look to book at least 49 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.

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 June 2, 2026.
Get a feel of what it's like to fly with United Airlines,Brussels Airlines, andLufthansa 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
9,779 reviews

Comfort

7.3

Overall

7.4

Food

6.6

Crew

8.1

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
United Airlines
7.4
Good
9,779 reviews
United Airlines
7.4
Good
9,779 reviews

Comfort

7.3

Overall

7.4

Food

6.6

Crew

8.1

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
Brussels Airlines
7.2
Good
409 reviews
United Airlines
7.4
Good
9,779 reviews

Comfort

7.3

Overall

7.4

Food

6.6

Crew

8.1

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
Lufthansa
6.8
Okay
8,035 reviews
United Airlines
7.4
Good
9,779 reviews

Comfort

7.3

Overall

7.4

Food

6.6

Crew

8.1

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.

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 25h 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 cheapest airlines to fly from Belgium to Washington, D.C. Dulles Intl Airport one-way?

    $461 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 Brussels Airlines and SWISS, with prices starting from $567 and $582, 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 (80%), Air Canada (79%), Austrian Airlines (79%).

  • 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 $927, our data indicates the cheapest price to be $765. The most popular route (Brussels Bruxelles-National - Washington, D.C. Dulles Intl), is priced around $631.

  • 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 July is currently the most expensive (average of $580). 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
Alexandria
Tysons
Owings Mills
Springfield
Arlington
Reston
Herndon
Fredericksburg
Rockville
Hyattsville
Manassas
Hanover
Chantilly
Laurel
Falls Church
Waldorf
Silver Spring
Largo
Clinton
Hunt Valley

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Top 3 airlines flying from Belgium to Dulles Intl

Discover the top 3 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 June 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
Brussels AirlinesCheapest$523Average$670FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$580Average$739FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$584Average$716FlexibilityNo cancel feeOn-time76%

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