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$319+ 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 7/18. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BRU
may. 4 — may. 111
dom. 5/4
dom. 5/11
1 adult, Economy
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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 abril 29, 2025.

Round-trip from

$576
(Scandinavian Airlines)

One-way from

$319
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$880

Good round-trip deal

$979 or less

Good one-way deal

$640 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
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High demand for flights, 0% potential price rise
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Cheapest flight prices on average. 4% potential price decrease ($36 potential savings vs. average RT price).
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Average for round-trip flights in April 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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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 abril 29, 2025.

This Scandinavian Airlines deal was found by Cheapflights users on 4/29. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/2110:05 pmIAD - BRU
1 stop29h 35mScandinavian Airlines
mié. 9/38:30 pmBRU - IAD
1 stop29h 29mScandinavian Airlines
Deal found 4/29$576
This Mytrip deal was found by Cheapflights users on 4/29. 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.
lun. 8/1810:20 pmIAD - CRL
2 stops15h 45mMultiple Airlines
lun. 8/256:30 pmCRL - IAD
2 stops32h 20mMultiple Airlines
Deal found 4/29$612
This Kiwi.com deal was found by Cheapflights users on 4/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 8/108:25 pmIAD - BRU
1 stop15h 40mMultiple Airlines
mar. 8/1910:00 amBRU - IAD
1 stop11h 50mMultiple Airlines
Deal found 4/29$613
This oojo deal was found by Cheapflights users on 4/29. 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.
dom. 8/108:30 pmIAD - BRU
1 stop10h 20mIcelandair
dom. 8/241:50 pmBRU - IAD
1 stop11h 30mIcelandair
Deal found 4/29$658
This Aer Lingus deal was found by Cheapflights users on 4/29. 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 Aer Lingus is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/135:20 pmIAD - BRU
1 stop10h 20mAer Lingus
mié. 8/2010:20 amBRU - IAD
1 stop11h 30mAer Lingus
Deal found 4/29$667
This oojo deal was found by Cheapflights users on 4/29. 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.
mié. 12/39:25 pmIAD - BRU
1 stop18h 35mTurkish Airlines
vie. 12/1911:40 amBRU - IAD
1 stop37h 50mTurkish Airlines
Deal found 4/29$681
This Justfly.com deal was found by Cheapflights users on 4/29. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/610:20 pmIAD - BRU
1 stop15h 45mTAP AIR PORTUGAL
mié. 5/148:55 pmBRU - IAD
1 stop24h 25mTAP AIR PORTUGAL
Deal found 4/29$699
This Cheapflightsfares deal was found by Cheapflights users on 4/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/135:35 pmIAD - BRU
Nonstop7h 50mBrussels Airlines
mié. 8/2010:45 amBRU - IAD
Nonstop8h 45mBrussels Airlines
Deal found 4/29$742
This United Airlines deal was found by Cheapflights users on 4/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 8/101:03 pmIAD - BRU
1 stop12h 57mUnited Airlines
vie. 8/2212:00 pmBRU - IAD
Nonstop8h 25mUnited Airlines
Deal found 4/29$749
This Air Canada deal was found by Cheapflights users on 4/29. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/121:03 pmIAD - BRU
2 stops18h 12mAir Canada
mar. 8/1910:00 amBRU - IAD
1 stop17h 01mAir Canada
Deal found 4/29$753
This FlightHub deal was found by Cheapflights users on 4/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 5/79:05 pmIAD - BRU
1 stop14h 30mRoyal Air Maroc
mar. 5/136:35 pmBRU - IAD
1 stop30h 30mRoyal Air Maroc
Deal found 4/29$801
This Austrian Airlines deal was found by Cheapflights users on 4/29. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/115:10 pmIAD - BRU
2 stops35h 55mAustrian Airlines
sáb. 8/237:55 pmBRU - IAD
1 stop24h 40mAustrian Airlines
Deal found 4/29$865

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 abril 29, 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

jue. 8/21

10:05 pm-9:40 am

1 stop29h 35m

Brussels Bruxelles-National

mié. 9/3

8:30 pm-7:59 pm

1 stop29h 29m

$576

Washington, D.C.Brussels

IAD - CRL

IADCRL

Washington, D.C. Dulles Intl

lun. 8/18

10:20 pm-8:05 pm

2 stops15h 45m

Charleroi Brussels

lun. 8/25

6:30 pm-8:50 pm

2 stops32h 20m

$612

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

dom. 8/10

8:25 pm-6:05 pm

1 stop15h 40m

Brussels Bruxelles-National

mar. 8/19

10:00 am-3:50 pm

1 stop11h 50m

$613

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

dom. 8/10

8:30 pm-12:50 pm

1 stop10h 20m

Brussels Bruxelles-National

dom. 8/24

1:50 pm-7:20 pm

1 stop11h 30m

$658

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

mié. 8/13

5:20 pm-9:40 am

1 stop10h 20m

Brussels Bruxelles-National

mié. 8/20

10:20 am-3:50 pm

1 stop11h 30m

$667

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

sáb. 5/10

1:30 pm-9:20 pm

1 stop25h 50m

Brussels Bruxelles-National

dom. 5/18

11:10 am-11:45 am

1 stop30h 35m

$730

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

mié. 8/13

5:35 pm-7:25 am

Nonstop7h 50m

Brussels Bruxelles-National

mié. 8/20

10:45 am-1:30 pm

Nonstop8h 45m

$742

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

dom. 8/10

1:03 pm-8:00 am

1 stop12h 57m

Brussels Bruxelles-National

vie. 8/22

12:00 pm-2:25 pm

Nonstop8h 25m

$749

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

mar. 8/12

1:03 pm-1:15 pm

2 stops18h 12m

Brussels Bruxelles-National

mar. 8/19

10:00 am-9:01 pm

1 stop17h 01m

$753

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

jue. 9/18

4:35 pm-11:25 am

1 stop12h 50m

Brussels Bruxelles-National

vie. 9/19

2:55 pm-8:10 pm

1 stop11h 15m

$840

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 25 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 $1,127). 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 abril 29, 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 abril 29, 2025.

The most flights from IAD to BE0 are scheduled on a Tuesday (8 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (6 on average).

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 abril 29, 2025.
Read through reviews of airlines operating flights from Washington, D.C. to Belgium, such as Austrian Airlines, SWISS and United Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Austrian Airlines
7.6
Good
780 reviews

Overall

7.6

Crew

8.1

Food

6.7

Boarding

7.6

Comfort

7.3

Entertainment

6.7

Reviews

1 / 20
8.0
Excellent

Ely,Mar 2025

VIE - PMI

Luggage at destination was not split into priorities. Had business and only got my bag after 20 minutes, almost towards the end and I was in a rush, so the "priority" was completely ignored.
Austrian Airlines
7.6
Good
780 reviews
Austrian Airlines
7.6
Good
780 reviews

Overall

7.6

Crew

8.1

Food

6.7

Boarding

7.6

Comfort

7.3

Entertainment

6.7

Reviews

1 / 20
8.0
Excellent

Ely,Mar 2025

VIE - PMI

Luggage at destination was not split into priorities. Had business and only got my bag after 20 minutes, almost towards the end and I was in a rush, so the "priority" was completely ignored.
SWISS
7.5
Good
1,588 reviews
Austrian Airlines
7.6
Good
780 reviews

Overall

7.6

Crew

8.1

Food

6.7

Boarding

7.6

Comfort

7.3

Entertainment

6.7

Reviews

1 / 20
8.0
Excellent

Ely,Mar 2025

VIE - PMI

Luggage at destination was not split into priorities. Had business and only got my bag after 20 minutes, almost towards the end and I was in a rush, so the "priority" was completely ignored.
United Airlines
7.4
Good
8,696 reviews
Austrian Airlines
7.6
Good
780 reviews

Overall

7.6

Crew

8.1

Food

6.7

Boarding

7.6

Comfort

7.3

Entertainment

6.7

Reviews

1 / 20
8.0
Excellent

Ely,Mar 2025

VIE - PMI

Luggage at destination was not split into priorities. Had business and only got my bag after 20 minutes, almost towards the end and I was in a rush, so the "priority" was completely ignored.
Turkish Airlines
7.3
Good
3,788 reviews
Austrian Airlines
7.6
Good
780 reviews

Overall

7.6

Crew

8.1

Food

6.7

Boarding

7.6

Comfort

7.3

Entertainment

6.7

Reviews

1 / 20
8.0
Excellent

Ely,Mar 2025

VIE - PMI

Luggage at destination was not split into priorities. Had business and only got my bag after 20 minutes, almost towards the end and I was in a rush, so the "priority" was completely ignored.
Scandinavian Airlines
7.3
Good
1,349 reviews
Austrian Airlines
7.6
Good
780 reviews

Overall

7.6

Crew

8.1

Food

6.7

Boarding

7.6

Comfort

7.3

Entertainment

6.7

Reviews

1 / 20
8.0
Excellent

Ely,Mar 2025

VIE - PMI

Luggage at destination was not split into priorities. Had business and only got my bag after 20 minutes, almost towards the end and I was in a rush, so the "priority" was completely ignored.

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 TAP AIR PORTUGAL. Other airlines that offer cheap prices include Icelandair from $414 and American Airlines from $582 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 SWISS (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 $550. On average you can expect to pay $1,546. The most popular route, (Washington, D.C. Dulles Intl - Brussels Bruxelles-National), can usually be booked for $373.

  • 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 $1,127). 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.

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

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 abril 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest$374Average$684FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$406Average$574FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$453Average$876FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$492Average$954FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$516Average$716FlexibilityNo cancel feeOn-time70%
Turkish AirlinesCheapest$552Average$650FlexibilityNo cancel feeOn-time77%
Aer LingusCheapest$564Average$808FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$694Average$1,147FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$724Average$1,105FlexibilityNo cancel feeOn-time69%
Brussels AirlinesCheapest$913Average$1,312FlexibilityNo cancel feeOn-timeN/A

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