Belgium

$260+ Cheap flights from Dulles Intl (IAD) to Belgium

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 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BRU
ago. 31 — sep. 71
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Cheap flight deals from Dulles Intl to Belgium

Keep the following information in mind while searching for Dulles Intl to Belgium flight deals. Data was last updated agosto 26, 2025.

Round-trip from

$487
(Kiwi.com)

One-way from

$260
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$645

Good round-trip deal

$700 or less

Good one-way deal

$606 or less
From Washington, D.C. Dulles Intl to Belgium
One-way flight from Washington, D.C. Dulles Intl to Belgium
Highest demand for flights based on searches. 6% potential increase in price ($57 potential increase over avg. RT price).
Cheapest flight prices on average. 5% potential price decrease ($45 potential savings vs. average RT price).
Average for round-trip flights in August 2025
Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Belgium.
Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Belgium.

Find flight deals from Dulles Intl to Belgium

Cheapest flights from Dulles Intl to Belgium
Explore the most affordable flight options available from Dulles Intl to Belgium. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agosto 26, 2025.

This FlightHub deal was found by Cheapflights users on 8/25. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/910:05 pmIAD - BRU
2 stops55h 10mScandinavian Airlines
lun. 10/279:40 pmBRU - IAD
2 stops49h 35mScandinavian Airlines
Deal found 8/25$487
This FlightHub deal was found by Cheapflights users on 8/26. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/910:05 pmIAD - BRU
2 stops55h 10mScandinavian Airlines
mar. 10/1412:40 pmBRU - IAD
2 stops37h 19mScandinavian Airlines
Deal found 8/26$488
This FlightHub deal was found by Cheapflights users on 8/25. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/310:05 pmIAD - BRU
1 stop29h 35mScandinavian Airlines
lun. 10/67:10 pmBRU - IAD
1 stop30h 49mScandinavian Airlines
Deal found 8/25$491
This oojo deal was found by Cheapflights users on 8/26. 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.
mar. 9/2310:05 pmIAD - BRU
1 stop11h 15mScandinavian Airlines
dom. 9/2811:55 amBRU - IAD
2 stops38h 04mScandinavian Airlines
Deal found 8/26$492
This CrystalTravel deal was found by Cheapflights users on 8/25. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/18:30 pmIAD - BRU
1 stop12h 00mScandinavian Airlines
lun. 12/810:20 amBRU - IAD
1 stop12h 55mScandinavian Airlines
Deal found 8/25$493
This oojo deal was found by Cheapflights users on 8/26. 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.
jue. 9/2510:05 pmIAD - BRU
1 stop11h 15mScandinavian Airlines
mar. 9/307:10 pmBRU - IAD
1 stop30h 49mScandinavian Airlines
Deal found 8/26$494
This oojo deal was found by Cheapflights users on 8/25. 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.
mar. 9/2310:05 pmIAD - BRU
1 stop11h 15mScandinavian Airlines
mar. 9/308:30 pmBRU - IAD
1 stop29h 29mScandinavian Airlines
Deal found 8/25$495
This FlightHub deal was found by Cheapflights users on 8/24. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/2010:05 pmIAD - BRU
2 stops30h 10mScandinavian Airlines
mié. 10/17:55 pmBRU - IAD
2 stops30h 04mScandinavian Airlines
Deal found 8/24$496
This Scandinavian Airlines deal was found by Cheapflights users on 8/25. 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.
lun. 9/1510:05 pmIAD - BRU
2 stops14h 10mScandinavian Airlines
jue. 10/167:00 pmBRU - IAD
2 stops30h 59mScandinavian Airlines
Deal found 8/25$498
This Scandinavian Airlines deal was found by Cheapflights users on 8/24. 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.
mar. 10/710:05 pmIAD - BRU
1 stop11h 15mScandinavian Airlines
lun. 10/2010:20 amBRU - IAD
1 stop15h 39mScandinavian Airlines
Deal found 8/24$499
This Flighttix deal was found by Cheapflights users on 8/24. 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.
dom. 10/1210:05 pmIAD - BRU
2 stops31h 55mScandinavian Airlines
mar. 10/2112:40 pmBRU - IAD
2 stops37h 19mScandinavian Airlines
Deal found 8/24$500
This Kiwi.com deal was found by Cheapflights users on 8/25. 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.
dom. 9/1410:20 pmIAD - BRU
2 stops31h 25mMultiple Airlines
dom. 9/2110:20 amBRU - IAD
1 stop14h 35mMultiple Airlines
Deal found 8/25$501

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Belgium 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 agosto 26, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Belgium that are best for you.

Fly from

Dulles Intl

Fly to

Belgium

Route

Depart

Return

Price

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

lun. 12/1

8:30 pm-6:40 pm

2 stops16h 10m

Brussels Bruxelles-National

lun. 12/15

10:20 am-5:15 pm

1 stop12h 55m

$487

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

jue. 10/9

10:05 pm-11:15 am

2 stops55h 10m

Brussels Bruxelles-National

mar. 10/14

12:40 pm-7:59 pm

2 stops37h 19m

$488

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

jue. 11/13

8:30 pm-8:55 pm

2 stops18h 25m

Brussels Bruxelles-National

mar. 12/2

7:20 pm-5:15 pm

2 stops27h 55m

$491

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

sáb. 10/11

10:05 pm-9:40 am

1 stop29h 35m

Brussels Bruxelles-National

mar. 10/14

7:10 pm-7:59 pm

1 stop30h 49m

$491

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

mar. 9/23

10:05 pm-3:20 pm

1 stop11h 15m

Brussels Bruxelles-National

dom. 9/28

11:55 am-7:59 pm

2 stops38h 04m

$492

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

lun. 12/1

8:30 pm-2:30 pm

1 stop12h 00m

Brussels Bruxelles-National

lun. 12/8

10:20 am-5:15 pm

1 stop12h 55m

$493

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

jue. 10/9

10:05 pm-11:15 am

2 stops55h 10m

Brussels Bruxelles-National

jue. 10/16

7:00 pm-7:59 pm

2 stops30h 59m

$494

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

jue. 9/25

10:05 pm-3:20 pm

1 stop11h 15m

Brussels Bruxelles-National

mar. 9/30

7:10 pm-7:59 pm

1 stop30h 49m

$494

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

jue. 9/11

10:05 pm-6:30 pm

1 stop14h 25m

Brussels Bruxelles-National

lun. 9/15

6:55 pm-7:59 pm

2 stops31h 04m

$495

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

dom. 9/14

10:05 pm-7:50 pm

1 stop15h 45m

Brussels Bruxelles-National

dom. 9/21

2:55 pm-7:59 pm

1 stop11h 04m

$495

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/25

Showing 1-10 of 44 results
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Best time to book a flight from Dulles Intl to Belgium

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

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

Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Belgium (average of $614). Flying from Washington, D.C. Dulles Intl Airport to Belgium in June is currently the most expensive (average of $1,077). 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 IAD to BE?

Find hourly flight availability from Dulles Intl to Belgium. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated agosto 26, 2025.

When flying from Washington, D.C. Dulles Intl Airport to Belgium, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

Explore weekly flight availability from Dulles Intl to Belgium. 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 agosto 26, 2025.

The most flights from IAD to BE0 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).

Reviews of airlines servicing Belgium

Get insights into the airlines that provide service to Belgium. 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 Belgium. Reviews last updated agosto 26, 2025.
Get a feel of what it's like to fly with Scandinavian Airlines, United Airlines, and Brussels Airlines from Washington, D.C. Dulles Intl Airport to Belgium by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

7.3

Overall

7.4

Crew

8.0

Entertainment

6.6

Boarding

7.6

Food

6.7

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

ATL - CPH

I asked for wheelchair assistance. When I got to Copenhagen, there was none. Luckily I found a robot type wheelchair that got me to my next gate. In Dusseldorf, there was no help at all. On the return trip, SAS bumped me and sent me to another airline without provision to get to my final destination. I had to make other arrangement to get home which was VERY expensive. I do not understand them, they treat Americans like trash.

Comfort

7.3

Overall

7.4

Crew

8.0

Entertainment

6.6

Boarding

7.6

Food

6.7

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

ATL - CPH

I asked for wheelchair assistance. When I got to Copenhagen, there was none. Luckily I found a robot type wheelchair that got me to my next gate. In Dusseldorf, there was no help at all. On the return trip, SAS bumped me and sent me to another airline without provision to get to my final destination. I had to make other arrangement to get home which was VERY expensive. I do not understand them, they treat Americans like trash.

Comfort

7.3

Overall

7.4

Crew

8.0

Entertainment

6.6

Boarding

7.6

Food

6.7

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

ATL - CPH

I asked for wheelchair assistance. When I got to Copenhagen, there was none. Luckily I found a robot type wheelchair that got me to my next gate. In Dusseldorf, there was no help at all. On the return trip, SAS bumped me and sent me to another airline without provision to get to my final destination. I had to make other arrangement to get home which was VERY expensive. I do not understand them, they treat Americans like trash.

Comfort

7.3

Overall

7.4

Crew

8.0

Entertainment

6.6

Boarding

7.6

Food

6.7

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

ATL - CPH

I asked for wheelchair assistance. When I got to Copenhagen, there was none. Luckily I found a robot type wheelchair that got me to my next gate. In Dusseldorf, there was no help at all. On the return trip, SAS bumped me and sent me to another airline without provision to get to my final destination. I had to make other arrangement to get home which was VERY expensive. I do not understand them, they treat Americans like trash.

Comfort

7.3

Overall

7.4

Crew

8.0

Entertainment

6.6

Boarding

7.6

Food

6.7

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

ATL - CPH

I asked for wheelchair assistance. When I got to Copenhagen, there was none. Luckily I found a robot type wheelchair that got me to my next gate. In Dusseldorf, there was no help at all. On the return trip, SAS bumped me and sent me to another airline without provision to get to my final destination. I had to make other arrangement to get home which was VERY expensive. I do not understand them, they treat Americans like trash.

Comfort

7.3

Overall

7.4

Crew

8.0

Entertainment

6.6

Boarding

7.6

Food

6.7

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

ATL - CPH

I asked for wheelchair assistance. When I got to Copenhagen, there was none. Luckily I found a robot type wheelchair that got me to my next gate. In Dusseldorf, there was no help at all. On the return trip, SAS bumped me and sent me to another airline without provision to get to my final destination. I had to make other arrangement to get home which was VERY expensive. I do not understand them, they treat Americans like trash.

Related info for your journey

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

    Scandinavian Airlines can get you from Washington, D.C. Dulles Intl Airport to Belgium in just under 16h 10m. Your travel time can differ by up to . There are 3879 mi between Washington, D.C. Dulles Intl Airport and Belgium.

  • What are the most popular routes from Washington, D.C. Dulles Intl Airport to Belgium?

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

    No one likes to see their flight delayed. When booking a flight from Washington, D.C. Dulles Intl Airport to Belgium consider choosing Brussels Airlines (52%), United Airlines (52%) or Air Canada (26%) as they are the most reliable in getting you off to your destination on time.

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

    The cheapest flight price from Washington, D.C. Dulles Intl Airport to Belgium is $412. On average you can expect to pay $1,182. The most popular route, (Washington, D.C. Dulles Intl - Brussels Bruxelles-National), can usually be booked for $432.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Belgium (average of $614). Flying from Washington, D.C. Dulles Intl Airport to Belgium in June is currently the most expensive (average of $1,077). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Dulles Intl to Belgium

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

Top 10 airlines flying from Dulles Intl to Belgium

Discover the top 10 airlines that operate flights from Dulles Intl to Belgium. 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 agosto 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$401Average$568FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$452Average$747FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$492Average$953FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$496Average$748FlexibilityNo cancel feeOn-time75%
Turkish AirlinesCheapest$552Average$650FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$557Average$771FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$559Average$800FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$598Average$1,003FlexibilityNo cancel feeOn-time69%
Brussels AirlinesCheapest$633Average$1,033FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$686Average$1,089FlexibilityNo cancel feeOn-time76%

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