HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Belgium

$282+ 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 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BRU
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Dulles Intl to Belgium 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 Dulles Intl to Belgium

Keep the following information in mind while searching for Dulles Intl to Belgium flight deals. Data was last updated March 28, 2025.

Round-trip from

$521

One-way from

$282
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$708

Good round-trip deal

$980 or less

Good one-way deal

$613 or less
From Washington, D.C. Dulles Intl to Belgium
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Belgium
Search Deals
Highest demand for flights based on searches. 1% potential increase in price ($9 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2025
Search Deals
Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Belgium.
Search Deals
Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Belgium.
Search Deals

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 March 28, 2025.

This deal was found by Cheapflights users on 3/27. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2710:05 pmIAD - BRU
1 stop14h 25mScandinavian Airlines
Mon 9/110:20 amBRU - IAD
1 stop15h 39mScandinavian Airlines
Deal found 3/27$521
This Mytrip deal was found by Cheapflights users on 3/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1810:05 pmIAD - BRU
3 stops31h 55mMultiple Airlines
Tue 5/279:50 amBRU - IAD
2 stops16h 09mMultiple Airlines
Deal found 3/26$628
This Turkish Airlines deal was found by Cheapflights users on 3/25. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/301:30 pmIAD - BRU
1 stop25h 50mTurkish Airlines
Thu 5/2211:10 amBRU - IAD
1 stop38h 35mTurkish Airlines
Deal found 3/25$633
This Gurufare deal was found by Cheapflights users on 3/26. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/286:30 pmIAD - BRU
1 stop11h 30mTAP AIR PORTUGAL
Wed 11/56:00 amBRU - IAD
1 stop21h 00mTAP AIR PORTUGAL
Deal found 3/26$643
This Mytrip deal was found by Cheapflights users on 3/25. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/288:30 pmIAD - CRL
2 stops20h 25mMultiple Airlines
Thu 5/89:05 pmCRL - IAD
2 stops25h 15mMultiple Airlines
Deal found 3/25$666
This FlightHub deal was found by Cheapflights users on 3/27. 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.
Tue 11/254:45 pmIAD - BRU
1 stop13h 50mITA Airways
Tue 12/28:35 pmBRU - IAD
2 stops48h 05mITA Airways
Deal found 3/27$698
This United deal was found by Cheapflights users on 3/25. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/25:50 pmIAD - BRU
Nonstop7h 25mUnited Airlines
Tue 12/910:00 amBRU - IAD
1 stop11h 13mUnited Airlines
Deal found 3/25$747
This Mytrip deal was found by Cheapflights users on 3/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/126:10 pmIAD - ANR
3 stops22h 15mMultiple Airlines
Mon 6/232:00 pmANR - IAD
3 stops31h 20mMultiple Airlines
Deal found 3/26$1,598

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 March 28, 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 8/27

10:05 pm-6:30 pm

1 stop14h 25m

Brussels Bruxelles-National

Mon 9/1

10:20 am-7:59 pm

1 stop15h 39m

$521

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Sun 5/18

10:05 pm-12:00 pm

3 stops31h 55m

Brussels Bruxelles-National

Tue 5/27

9:50 am-7:59 pm

2 stops16h 09m

$628

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Wed 4/30

1:30 pm-9:20 pm

1 stop25h 50m

Brussels Bruxelles-National

Thu 5/22

11:10 am-7:45 pm

1 stop38h 35m

$633

Washington, D.C.Brussels

IAD - CRL

IADCRL

Washington, D.C. Dulles Intl

Mon 4/28

8:30 pm-10:55 pm

2 stops20h 25m

Charleroi Brussels

Thu 5/8

9:05 pm-4:20 pm

2 stops25h 15m

$666

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Tue 8/12

10:20 pm-11:55 pm

1 stop19h 35m

Brussels Bruxelles-National

Mon 8/25

8:55 pm-3:20 pm

1 stop24h 25m

$669

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Sun 4/20

8:30 pm-12:50 pm

1 stop10h 20m

Brussels Bruxelles-National

Thu 4/24

1:50 pm-7:20 pm

1 stop11h 30m

$763

Washington, D.C.Antwerp

IAD - ANR

IADANR

Washington, D.C. Dulles Intl

Thu 6/12

6:10 pm-10:25 pm

3 stops22h 15m

Antwerp Deurne

Mon 6/23

2:00 pm-3:20 pm

3 stops31h 20m

$1,598

Washington, D.C.Brussels

IAD - CRL

IADCRL

Washington, D.C. Dulles Intl

Tue 4/1

8:30 am-10:55 am

3 stops44h 25m

$282

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Mon 4/28

8:30 pm-10:15 am

3 stops31h 45m

$286

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Sun 7/13

5:45 pm-11:00 am

1 stop11h 15m

$335

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 21 results
1
2
3

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 $1,146). 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 March 28, 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.

Rainfall in Belgium by month

Plan your trip to Belgium by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Belgium ranges from 1.6 - 3.1 inches per month. January is typically the wettest month, when rainfall can reach 3.1 in. August is typically the driest time to visit Belgium when rainfall is around 1.6 in.

Temperature in Belgium by month

Plan your trip to Belgium by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Belgium, 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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 37.4 F).

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 March 28, 2025.
SWISS
7.5
Good
1,570 reviews

Boarding

7.6

Entertainment

6.7

Crew

8.2

Food

7.0

Comfort

7.3

Overall

7.5

Reviews

1 / 20
6.0
Good

Yvette,Nov 2024

BOS - ZRH

Food was not very good and the options were poor. The seat wasn't very comfortable. I would not choose to fly on this airline again. Their website was also difficult to navigate.
SWISS
7.5
Good
1,570 reviews
SWISS
7.5
Good
1,570 reviews

Boarding

7.6

Entertainment

6.7

Crew

8.2

Food

7.0

Comfort

7.3

Overall

7.5

Reviews

1 / 20
6.0
Good

Yvette,Nov 2024

BOS - ZRH

Food was not very good and the options were poor. The seat wasn't very comfortable. I would not choose to fly on this airline again. Their website was also difficult to navigate.
United Airlines
7.4
Good
8,603 reviews
SWISS
7.5
Good
1,570 reviews

Boarding

7.6

Entertainment

6.7

Crew

8.2

Food

7.0

Comfort

7.3

Overall

7.5

Reviews

1 / 20
6.0
Good

Yvette,Nov 2024

BOS - ZRH

Food was not very good and the options were poor. The seat wasn't very comfortable. I would not choose to fly on this airline again. Their website was also difficult to navigate.
Brussels Airlines
7.4
Good
344 reviews
SWISS
7.5
Good
1,570 reviews

Boarding

7.6

Entertainment

6.7

Crew

8.2

Food

7.0

Comfort

7.3

Overall

7.5

Reviews

1 / 20
6.0
Good

Yvette,Nov 2024

BOS - ZRH

Food was not very good and the options were poor. The seat wasn't very comfortable. I would not choose to fly on this airline again. Their website was also difficult to navigate.
Turkish Airlines
7.3
Good
3,744 reviews
SWISS
7.5
Good
1,570 reviews

Boarding

7.6

Entertainment

6.7

Crew

8.2

Food

7.0

Comfort

7.3

Overall

7.5

Reviews

1 / 20
6.0
Good

Yvette,Nov 2024

BOS - ZRH

Food was not very good and the options were poor. The seat wasn't very comfortable. I would not choose to fly on this airline again. Their website was also difficult to navigate.
Scandinavian Airlines
7.3
Good
1,325 reviews
SWISS
7.5
Good
1,570 reviews

Boarding

7.6

Entertainment

6.7

Crew

8.2

Food

7.0

Comfort

7.3

Overall

7.5

Reviews

1 / 20
6.0
Good

Yvette,Nov 2024

BOS - ZRH

Food was not very good and the options were poor. The seat wasn't very comfortable. I would not choose to fly on this airline again. Their website was also difficult to navigate.

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.

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

    One-way options have recently been found by users for as low as $369 on Scandinavian Airlines. Other airlines that offer cheap prices include Icelandair from $380 and TAP AIR PORTUGAL from $405 one-way.

  • 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 Air Canada (65%), Austrian Airlines (65%) or Brussels Airlines (65%) 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 $538. On average you can expect to pay $2,503. The most popular route, (Washington, D.C. Dulles Intl - Brussels Bruxelles-National), can usually be booked for $379.

  • 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 $1,146). 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

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

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
Baltimore to Heathrow flights
Dulles Intl to Charles de Gaulle flights
Dulles Intl to Leonardo da Vinci/Fiumicino flights
Dulles Intl to Athens flights
Reagan-National to Heathrow flights
Dulles Intl to Gatwick flights
Dulles Intl to London City flights
Dulles Intl to Madrid flights
Dulles Intl to Lisbon flights
Dulles Intl to Istanbul flights
Dulles Intl to Dublin flights
Baltimore to Gatwick flights
Dulles Intl to Frankfurt flights
Reagan-National to Gatwick flights
Dulles Intl to Barcelona-El Prat flights
Dulles Intl to Orly flights
Reagan-National to Charles de Gaulle flights
Baltimore to Charles de Gaulle flights
Reagan-National to Leonardo da Vinci/Fiumicino flights
Dulles Intl to Amsterdam flights
Baltimore to Leonardo da Vinci/Fiumicino flights
Reagan-National to Orly flights
Baltimore to Stansted flights
Dulles Intl to Edinburgh flights
Reagan-National to Athens flights
Reagan-National to Madrid flights
Dulles Intl to Zurich flights
Baltimore to Athens flights
Reagan-National to Lisbon flights
Dulles Intl to Vicenza flights
Dulles Intl to Bruxelles-National flights
Dulles Intl to Keflavik Intl flights
Baltimore to Madrid flights
Dulles Intl to Malpensa flights
Baltimore to Lisbon flights
Dulles Intl to Copenhagen flights
Dulles Intl to Linate flights
Baltimore to Frankfurt flights
Reagan-National to Istanbul flights
Reagan-National to Frankfurt flights
Baltimore to Dublin flights
Reagan-National to Dublin flights
Dulles Intl to Munich flights
Baltimore to Barcelona-El Prat flights
Reagan-National to Barcelona-El Prat flights
Reagan-National to Malpensa flights
Baltimore to Istanbul flights
Baltimore to Keflavik Intl flights
Baltimore to Malpensa 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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest$383Average$686FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$419Average$572FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$441Average$664FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$492Average$929FlexibilityNo cancel feeOn-timeN/A
Aer LingusCheapest$559Average$749FlexibilityNo cancel feeOn-timeN/A
Turkish AirlinesCheapest$591Average$770FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$724Average$1,126FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$725Average$1,183FlexibilityNo cancel feeOn-time76%
Brussels AirlinesCheapest$913Average$1,331FlexibilityNo cancel feeOn-timeN/A
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.