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$264+ 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 11/30. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BRU
Nov 13 — Nov 201
Thu 11/13
Thu 11/20
1 adult, Economy
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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 October 14, 2025.

This Scandinavian Airlines deal was found by Cheapflights users on 10/12. 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.
Thu 11/1312:11 pmIAD - BRU
2 stops20h 19mScandinavian Airlines
Mon 11/179:40 pmBRU - IAD
2 stops49h 35mScandinavian Airlines
Deal found 10/12$482
This Scandinavian Airlines deal was found by Cheapflights users on 10/12. 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.
Thu 11/1312:11 pmIAD - BRU
2 stops15h 29mScandinavian Airlines
Wed 11/1910:20 amBRU - IAD
2 stops14h 48mScandinavian Airlines
Deal found 10/12$489
This Scandinavian Airlines deal was found by Cheapflights users on 10/14. 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.
Wed 11/127:49 pmIAD - BRU
2 stops42h 01mScandinavian Airlines
Sun 3/297:10 pmBRU - IAD
1 stop27h 40mScandinavian Airlines
Deal found 10/14$490
This Mytrip deal was found by Cheapflights users on 10/12. 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.
Fri 12/57:40 pmIAD - BRU
2 stops19h 30mMultiple Airlines
Sat 12/139:55 pmBRU - IAD
2 stops26h 35mMultiple Airlines
Deal found 10/12$496
This Scandinavian Airlines deal was found by Cheapflights users on 10/11. 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.
Wed 11/1912:11 pmIAD - BRU
2 stops15h 29mScandinavian Airlines
Sun 11/237:45 pmBRU - IAD
2 stops27h 30mScandinavian Airlines
Deal found 10/11$504
This CrystalTravel deal was found by Cheapflights users on 10/13. 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.
Wed 11/128:30 pmIAD - BRU
1 stop12h 00mScandinavian Airlines
Mon 11/1710:20 amBRU - IAD
1 stop12h 55mScandinavian Airlines
Deal found 10/13$513
This Scandinavian Airlines deal was found by Cheapflights users on 10/13. 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.
Thu 11/1312:11 pmIAD - BRU
2 stops15h 29mScandinavian Airlines
Tue 12/27:20 pmBRU - IAD
2 stops27h 55mScandinavian Airlines
Deal found 10/13$514
This Scandinavian Airlines deal was found by Cheapflights users on 10/14. 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.
Wed 11/1912:11 pmIAD - BRU
2 stops15h 29mScandinavian Airlines
Thu 11/2710:20 amBRU - IAD
2 stops14h 48mScandinavian Airlines
Deal found 10/14$518
This Scandinavian Airlines deal was found by Cheapflights users on 10/14. 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.
Wed 11/127:49 pmIAD - BRU
2 stops36h 41mScandinavian Airlines
Fri 4/310:20 amBRU - IAD
1 stop12h 30mScandinavian Airlines
Deal found 10/14$530
This Mytrip deal was found by Cheapflights users on 10/12. 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 11/139:45 amIAD - CRL
3 stops28h 40mMultiple Airlines
Thu 11/209:00 pmCRL - IAD
3 stops29h 26mMultiple Airlines
Deal found 10/12$570
This Mytrip deal was found by Cheapflights users on 10/13. 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.
Fri 11/149:45 amIAD - CRL
2 stops26h 35mMultiple Airlines
Fri 11/216:25 amCRL - IAD
2 stops20h 29mMultiple Airlines
Deal found 10/13$601
This Mytrip deal was found by Cheapflights users on 10/12. 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.
Sun 11/308:30 pmIAD - CRL
2 stops16h 50mMultiple Airlines
Sun 12/71:30 pmCRL - IAD
2 stops33h 35mMultiple Airlines
Deal found 10/12$605

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 October 14, 2025.

Round-trip from

$482
(Scandinavian Airlines)

One-way from

$264
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$655

Good round-trip deal

$973 or less

Good one-way deal

$666 or less
From Washington, D.C. Dulles Intl to Belgium
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One-way flight from Washington, D.C. Dulles Intl to Belgium
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($76 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($50 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Belgium.
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Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Belgium.
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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 October 14, 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

Wed 2/4

7:59 pm-9:40 am

2 stops31h 41m

Brussels Bruxelles-National

Sat 2/7

10:20 am-6:50 pm

1 stop14h 30m

$490

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Tue 2/3

12:30 pm-2:30 pm

2 stops20h 00m

Brussels Bruxelles-National

Sun 2/8

8:30 pm-5:15 pm

1 stop26h 45m

$509

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Wed 11/19

12:11 pm-9:40 am

2 stops15h 29m

Brussels Bruxelles-National

Thu 11/27

10:20 am-7:08 pm

2 stops14h 48m

$518

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Sun 3/15

12:30 pm-2:30 pm

2 stops21h 00m

Brussels Bruxelles-National

Sat 3/21

10:20 am-7:50 pm

1 stop14h 30m

$537

Washington, D.C.Brussels

IAD - CRL

IADCRL

Washington, D.C. Dulles Intl

Thu 11/13

9:45 am-8:25 pm

3 stops28h 40m

Charleroi Brussels

Thu 11/20

9:00 pm-8:26 pm

3 stops29h 26m

$570

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Tue 11/11

12:11 pm-1:45 pm

2 stops19h 34m

Brussels Bruxelles-National

Sun 11/23

7:45 pm-5:15 pm

2 stops27h 30m

$596

Washington, D.C.Brussels

IAD - CRL

IADCRL

Washington, D.C. Dulles Intl

Fri 11/14

9:45 am-6:20 pm

2 stops26h 35m

Charleroi Brussels

Fri 11/21

6:25 am-8:54 pm

2 stops20h 29m

$601

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Mon 11/10

8:30 pm-10:50 am

2 stops32h 20m

Brussels Bruxelles-National

Wed 11/19

10:20 am-7:08 pm

2 stops14h 48m

$616

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Sun 2/22

12:30 pm-9:40 am

2 stops15h 10m

Brussels Bruxelles-National

Thu 2/26

10:20 am-5:15 pm

1 stop12h 55m

$624

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Tue 12/2

12:19 pm-7:50 pm

2 stops25h 31m

Brussels Bruxelles-National

Tue 12/9

3:10 pm-5:15 pm

1 stop32h 05m

$634

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/13

Showing 1-10 of 47 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, April is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Belgium (average of $431). Flying from Washington, D.C. Dulles Intl Airport to Belgium in June is currently the most expensive (average of $684). 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 October 14, 2025.

When flying from Washington, D.C. Dulles Intl Airport to Belgium, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 33% versus a flight in the morning.

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 October 14, 2025.

The most flights from IAD to BE0 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).

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 October 14, 2025.
Get a feel of what it's like to fly with Scandinavian Airlines, United Airlines, and Aer Lingus 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.
Scandinavian Airlines
7.4
Good
1,532 reviews

Food

6.6

Overall

7.4

Boarding

7.6

Comfort

7.3

Crew

8.0

Entertainment

6.6

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.
Scandinavian Airlines
7.4
Good
1,532 reviews
Scandinavian Airlines
7.4
Good
1,532 reviews

Food

6.6

Overall

7.4

Boarding

7.6

Comfort

7.3

Crew

8.0

Entertainment

6.6

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.
United Airlines
7.4
Good
8,977 reviews
Scandinavian Airlines
7.4
Good
1,532 reviews

Food

6.6

Overall

7.4

Boarding

7.6

Comfort

7.3

Crew

8.0

Entertainment

6.6

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.
Aer Lingus
7.2
Good
1,337 reviews
Scandinavian Airlines
7.4
Good
1,532 reviews

Food

6.6

Overall

7.4

Boarding

7.6

Comfort

7.3

Crew

8.0

Entertainment

6.6

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.
Brussels Airlines
7.2
Good
365 reviews
Scandinavian Airlines
7.4
Good
1,532 reviews

Food

6.6

Overall

7.4

Boarding

7.6

Comfort

7.3

Crew

8.0

Entertainment

6.6

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.
Icelandair
7.0
Good
556 reviews
Scandinavian Airlines
7.4
Good
1,532 reviews

Food

6.6

Overall

7.4

Boarding

7.6

Comfort

7.3

Crew

8.0

Entertainment

6.6

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 31h 41m. 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?

    While some choose either Washington, D.C. Dulles Intl - Charleroi Brussels or Washington, D.C. Dulles Intl - Antwerp Deurne, Washington, D.C. Dulles Intl - Brussels Bruxelles-National is the most popular route 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 United Airlines (56%), Brussels Airlines (56%) or Air Canada (43%) 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 $452. On average you can expect to pay $1,216. The most popular route, (Washington, D.C. Dulles Intl - Brussels Bruxelles-National), can usually be booked for $427.

  • 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, April is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Belgium (average of $431). Flying from Washington, D.C. Dulles Intl Airport to Belgium in June is currently the most expensive (average of $684). 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

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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.
Dulles Intl to Heathrow flights
Dulles Intl to Charles de Gaulle flights
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Reagan-National to Madrid flights
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Baltimore to Madrid flights
Dulles Intl to Dublin flights
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Baltimore to Charles de Gaulle flights
Reagan-National to Charles de Gaulle flights
Reagan-National to Istanbul flights
Dulles Intl to Amsterdam flights
Dulles Intl to Munich flights
Reagan-National to Orly flights
Dulles Intl to Stansted flights
Dulles Intl to Edinburgh flights
Baltimore to Istanbul flights
Dulles Intl to Luton flights
Baltimore to Leonardo da Vinci/Fiumicino flights
Reagan-National to Leonardo da Vinci/Fiumicino flights
Dulles Intl to Keflavik Intl flights
Dulles Intl to Vicenza flights
Dulles Intl to Bruxelles-National flights
Dulles Intl to Zurich flights
Baltimore to Lisbon flights
Reagan-National to Lisbon flights
Dulles Intl to Vienna flights
Reagan-National to Barcelona-El Prat flights
Dulles Intl to Sabiha Gokcen flights
Reagan-National to Frankfurt flights
Baltimore to Luton flights
Dulles Intl to Malpensa flights
Reagan-National to Vicenza flights
Baltimore to Barcelona-El Prat flights
Baltimore to Frankfurt flights
Baltimore to Keflavik Intl flights
Dulles Intl to Linate flights
Dulles Intl to Beauvais-Tille flights
Reagan-National to Malpensa flights
Baltimore to Vicenza flights

Top 9 airlines flying from Dulles Intl to Belgium

Discover the top 9 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 October 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$408Average$557FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$441Average$747FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$480Average$929FlexibilityNo cancel feeOn-timeN/A
Aer LingusCheapest$539Average$779FlexibilityNo cancel feeOn-timeN/A
Turkish AirlinesCheapest$540Average$624FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$555Average$752FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$601Average$997FlexibilityNo cancel feeOn-time69%
Brussels AirlinesCheapest$633Average$1,049FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$686Average$1,089FlexibilityNo cancel feeOn-time76%

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