Belgium

$286+ 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 4/12. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BRU
Apr 16 — Apr 231
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Cheap 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 17, 2026.

This KAYAK deal was found by Cheapflights users on 3/12. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/228:20 pm
IAD
-
BRU
1 stop16h 10m
Scandinavian Airlines
Mon 10/267:00 pm
BRU
-
IAD
2 stops52h 15m
Scandinavian Airlines
Deal found 3/12$514
This Flighttix deal was found by Cheapflights users on 3/13. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/278:20 pm
IAD
-
BRU
2 stops18h 10m
Scandinavian Airlines
Mon 5/49:10 pm
BRU
-
IAD
2 stops49h 50m
Scandinavian Airlines
Deal found 3/13$517
This KAYAK deal was found by Cheapflights users on 3/12. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/238:20 pm
IAD
-
BRU
2 stops40h 55m
Scandinavian Airlines
Tue 10/277:20 pm
BRU
-
IAD
2 stops27h 55m
Scandinavian Airlines
Deal found 3/12$521
This oojo deal was found by Cheapflights users on 3/15. 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.
Sun 4/198:20 pm
IAD
-
BRU
2 stops18h 10m
Scandinavian Airlines
Wed 4/226:55 pm
BRU
-
IAD
2 stops28h 05m
Scandinavian Airlines
Deal found 3/15$522
This Scandinavian Airlines deal was found by Cheapflights users on 3/14. 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.
Mon 11/308:30 pm
IAD
-
BRU
1 stop31h 10m
Scandinavian Airlines
Wed 12/910:20 am
BRU
-
IAD
1 stop12h 55m
Scandinavian Airlines
Deal found 3/14$525
This Scandinavian Airlines deal was found by Cheapflights users on 3/12. 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.
Sun 4/198:20 pm
IAD
-
BRU
1 stop16h 10m
Scandinavian Airlines
Thu 4/237:10 pm
BRU
-
IAD
1 stop27h 50m
Scandinavian Airlines
Deal found 3/12$526
This oojo deal was found by Cheapflights users on 3/15. 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.
Mon 4/208:20 pm
IAD
-
BRU
1 stop12h 15m
Scandinavian Airlines
Sat 5/210:20 am
BRU
-
IAD
1 stop12h 40m
Scandinavian Airlines
Deal found 3/15$527
This oojo deal was found by Cheapflights users on 3/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/98:20 pm
IAD
-
BRU
1 stop16h 10m
Scandinavian Airlines
Wed 9/238:30 pm
BRU
-
IAD
1 stop26h 30m
Scandinavian Airlines
Deal found 3/14$528
This KAYAK deal was found by Cheapflights users on 3/14. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/308:30 pm
IAD
-
BRU
2 stops39h 50m
Scandinavian Airlines
Thu 12/1010:20 am
BRU
-
IAD
1 stop12h 55m
Scandinavian Airlines
Deal found 3/14$529
This Mytrip deal was found by Cheapflights users on 3/16. 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.
Tue 4/145:05 pm
IAD
-
CRL
2 stops23h 50m
Multiple Airlines
Wed 4/225:35 pm
CRL
-
IAD
2 stops27h 35m
Multiple Airlines
Deal found 3/16$655
This Mytrip deal was found by Cheapflights users on 3/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/31:20 pm
IAD
-
CRL
2 stops18h 00m
Multiple Airlines
Tue 5/129:40 am
CRL
-
IAD
2 stops31h 55m
Multiple Airlines
Deal found 3/14$658
This Mytrip deal was found by Cheapflights users on 3/15. 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 4/121:20 pm
IAD
-
CRL
2 stops27h 10m
Multiple Airlines
Mon 4/208:15 pm
CRL
-
IAD
2 stops29h 35m
Multiple Airlines
Deal found 3/15$662

Find 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 17, 2026.

Round-trip from

$517
(Flighttix)

One-way from

$286
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$711

Good round-trip deal

$1,016 or less

Good one-way deal

$481 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. 19% potential increase in price ($182 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($27 potential savings vs. average RT price).
Average for round-trip flights in March 2026
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.

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 17, 2026.
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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Sun 4/19

8:20 pm-6:30 pm

1 stop16h 10m

Brussels Bruxelles-National

Thu 4/23

7:10 pm-5:00 pm

1 stop27h 50m

$526

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Sun 5/3

8:20 pm-2:35 pm

1 stop12h 15m

Brussels Bruxelles-National

Sun 5/10

10:20 am-5:00 pm

1 stop12h 40m

$675

Washington, D.C.Brussels

IAD - CRL

IADCRL

Washington, D.C. Dulles Intl

Sun 4/19

8:30 pm-10:45 pm

2 stops20h 15m

Charleroi Brussels

Thu 4/23

9:05 pm-3:10 pm

2 stops24h 05m

$698

Washington, D.C.Brussels

IAD - CRL

IADCRL

Washington, D.C. Dulles Intl

Mon 5/4

1:20 pm-6:40 pm

2 stops23h 20m

Charleroi Brussels

Tue 5/12

6:55 am-11:35 am

2 stops34h 40m

$708

Washington, D.C.Brussels

IAD - CRL

IADCRL

Washington, D.C. Dulles Intl

Sat 4/18

8:30 pm-10:55 pm

2 stops20h 25m

Charleroi Brussels

Fri 5/15

9:05 am-7:00 pm

2 stops15h 55m

$747

Washington, D.C.Brussels

IAD - CRL

IADCRL

Washington, D.C. Dulles Intl

Sun 5/31

8:30 pm-10:55 pm

2 stops20h 25m

Charleroi Brussels

Sun 6/7

11:40 am-3:10 pm

2 stops33h 30m

$789

Washington, D.C.Brussels

IAD - CRL

IADCRL

Washington, D.C. Dulles Intl

Sun 5/17

8:30 pm-10:45 pm

2 stops20h 15m

Charleroi Brussels

Sun 6/14

11:40 am-3:10 pm

2 stops33h 30m

$837

Washington, D.C.Brussels

IAD - CRL

IADCRL

Washington, D.C. Dulles Intl

Thu 5/14

8:30 pm-3:30 pm

2 stops13h 00m

Charleroi Brussels

Wed 5/20

5:35 pm-3:10 pm

2 stops27h 35m

$853

Washington, D.C.Brussels

IAD - CRL

IADCRL

Washington, D.C. Dulles Intl

Thu 5/14

8:30 pm-10:55 pm

2 stops20h 25m

Charleroi Brussels

Sat 5/23

5:35 pm-3:10 pm

2 stops27h 35m

$898

Washington, D.C.Brussels

IAD - CRL

IADCRL

Washington, D.C. Dulles Intl

Wed 4/29

8:55 pm-8:40 am

1 stop29h 45m

Charleroi Brussels

Sat 5/16

5:50 pm-3:45 pm

2 stops27h 55m

$958

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/12

Showing 1-10 of 54 resultsSorted by cheapest first
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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, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Belgium (average of $393). Flying from Washington, D.C. Dulles Intl Airport to Belgium in June is currently the most expensive (average of $744). 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 17, 2026.

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 March 17, 2026.

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 March 17, 2026.
Get a feel of what it's like to fly with United Airlines,Scandinavian Airlines, andAer 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.

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Overall

7.4

Food

6.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Overall

7.4

Food

6.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Overall

7.4

Food

6.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Overall

7.4

Food

6.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Overall

7.4

Food

6.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Overall

7.4

Food

6.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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 and United 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 10h 52m. There are 3879 mi between Washington, D.C. Dulles Intl Airport and Belgium. This flight may include one or multiple stops.

  • 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 $188 on Icelandair. Other airlines that offer cheap prices include Scandinavian Airlines from $285 and Brussels Airlines from $439 one-way.

  • 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 Lufthansa (66%), Air Canada (65%) or Austrian 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 $263. On average you can expect to pay $1,342. The most popular route, (Washington, D.C. Dulles Intl - Brussels Bruxelles-National), can usually be booked for $497.

  • 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, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Belgium (average of $393). Flying from Washington, D.C. Dulles Intl Airport to Belgium in June is currently the most expensive (average of $744). 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.

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 March 17, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$345Average$771FlexibilityNo cancel feeOn-time70%
IcelandairCheapest$393Average$691FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$440Average$730FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$446Average$571FlexibilityNo cancel feeOn-time77%
DeltaCheapest$511Average$656FlexibilityNo cancel feeOn-timeN/A
Turkish AirlinesCheapest$540Average$631FlexibilityNo cancel feeOn-time77%
Aer LingusCheapest$552Average$792FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$592Average$938FlexibilityNo cancel feeOn-time69%
Brussels AirlinesCheapest$633Average$1,029FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$775Average$1,254FlexibilityNo cancel feeOn-time76%

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