What is the cheapest airline that flies from Washington, D.C. Dulles Intl to Belgium?

Scandinavian Airlines is the most popular carrier operating from Washington, D.C. Dulles Intl to Belgium

How many flights depart from Washington, D.C. Dulles Intl Airport to Belgium on average per day?

6 flights are operational daily from Washington, D.C. Dulles Intl Airport to Belgium as of November 2025. The most popular departure time for this route is 5:00PM, with 100% of flights per day taking off in the afternoon.

What airlines fly to Belgium?

United Airlines, Aer Lingus and Scandinavian Airlines are the top three most popular airlines that fly to Belgium from Washington, D.C. Dulles Intl Airport according to our data. United Airlines is the first choice among our users, with 43% of people opting to fly with this airline when traveling to Belgium. Keep in mind that there are 11 different airlines that fly to Belgium on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Belgium?

Prices for flights from Washington, D.C. Dulles Intl Airport to Belgium are refreshed on a daily basis.

How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Belgium?

As of November 2025, there are 11 operators available to choose from for flights from Washington, D.C. Dulles Intl Airport to Belgium.

How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Belgium?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. Dulles Intl Airport to Belgium.

What documentation or ID do you need to fly to Belgium?

The travel and health documents you'll need for your trip to Belgium may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Belgium. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$264 Cheap Flights from Washington, D.C. Dulles Intl Airport to Belgium in 2025/26

Q: How many flights depart from Washington, D.C. Dulles Intl Airport to Belgium on average per week?

The number of flights available between Washington, D.C. Dulles Intl Airport and Belgium is 42 per week as of November 2025. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.

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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Belgium

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Cheap round-trip flights

Enter your travel dates to find the best prices.

8:30 pm - 7:50 pmIAD-BRU

17h 20m1 stop

3:10 pm - 7:09 pmBRU-IAD

33h 59m2 stops

$511Scandinavian Airlines

Find Deal

Wed, Jan 21 - Tue, Jan 27

8:30 pm - 2:30 pmIAD-BRU

12h 00m1 stop

10:20 am - 5:15 pmBRU-IAD

12h 55m1 stop

$513Scandinavian Airlines

Find Deal

Thu, Feb 12 - Mon, Feb 16

12:23 pm - 9:40 amIAD-BRU

15h 17m2 stops

10:20 am - 11:43 amBRU-IAD

31h 23m2 stops

$514Scandinavian Airlines

Find Deal

Sun, Jan 18 - Sun, Feb 1

7:59 pm - 10:40 amIAD-BRU

32h 41m2 stops

3:15 pm - 4:50 pmBRU-IAD

31h 35m1 stop

$515Scandinavian Airlines

Find Deal

Wed, Apr 1 - Sat, Apr 25

8:30 pm - 9:40 amIAD-BRU

31h 10m1 stop

8:30 pm - 11:41 amBRU-IAD

45h 11m2 stops

$516Scandinavian Airlines

Find Deal

Thu, Feb 12 - Mon, Feb 16

12:23 pm - 9:40 amIAD-BRU

15h 17m2 stops

3:10 pm - 6:50 pmBRU-IAD

33h 40m1 stop

$518Scandinavian Airlines

Find Deal

Mon, Jan 12 - Fri, Jan 16

8:30 pm - 2:30 pmIAD-BRU

12h 00m1 stop

10:20 am - 4:50 pmBRU-IAD

12h 30m1 stop

$519Scandinavian Airlines

Find Deal

Thu, Jan 8 - Fri, May 15

8:30 pm - 2:30 pmIAD-BRU

12h 00m1 stop

10:20 am - 5:15 pmBRU-IAD

12h 55m1 stop

$522Scandinavian Airlines

Find Deal

Wed, Feb 11 - Mon, Feb 16

8:30 pm - 6:10 pmIAD-CRL

15h 40m2 stops

7:25 am - 5:15 pmCRL-IAD

15h 50m2 stops

$535Multiple Airlines

Find Deal

Thu, Feb 12 - Mon, Feb 16

7:40 pm - 10:15 pmIAD-CRL

20h 35m2 stops

8:40 am - 6:30 pmCRL-IAD

15h 50m2 stops

$587Multiple Airlines

Find Deal

Sun, Jan 18 - Tue, Jan 27

Scandinavian Airlines flights from Washington, D.C. Dulles Intl Airport to Belgium

Our best Scandinavian Airlines deals on Washington, D.C. Dulles Intl Airport to Belgium flight tickets

Scandinavian Airlines

Jan 21

IAD8:30 pmWashington, D.C. Dulles Intl

17h 20m

1 stop

BRU7:50 pmBrussels Bruxelles-National

Jan 27

BRU3:10 pmBrussels Bruxelles-National

33h 59m

2 stops

IAD7:09 pmWashington, D.C. Dulles Intl

$511

Find similar

Scandinavian Airlines

Feb 12

IAD8:30 pmWashington, D.C. Dulles Intl

12h 00m

1 stop

BRU2:30 pmBrussels Bruxelles-National

Feb 16

BRU10:20 amBrussels Bruxelles-National

12h 55m

1 stop

IAD5:15 pmWashington, D.C. Dulles Intl

$513

Find similar

Scandinavian Airlines

Feb 12

IAD8:30 pmWashington, D.C. Dulles Intl

57h 25m

2 stops

BRU11:55 amBrussels Bruxelles-National

Feb 16

BRU8:30 pmBrussels Bruxelles-National

45h 11m

2 stops

IAD11:41 amWashington, D.C. Dulles Intl

$514

Find similar

Aer Lingus flights from Washington, D.C. Dulles Intl Airport to Belgium

Our best Aer Lingus deals on Washington, D.C. Dulles Intl Airport to Belgium flight tickets

Aer Lingus

Apr 21

IAD5:20 pmWashington, D.C. Dulles Intl

10h 20m

1 stop

BRU9:40 amBrussels Bruxelles-National

May 12

BRU10:20 amBrussels Bruxelles-National

11h 30m

1 stop

IAD3:50 pmWashington, D.C. Dulles Intl

$562

Find similar

Aer Lingus

Jan 12

IAD5:05 pmWashington, D.C. Dulles Intl

10h 30m

1 stop

BRU9:35 amBrussels Bruxelles-National

Jan 19

BRU10:15 amBrussels Bruxelles-National

11h 20m

1 stop

IAD3:35 pmWashington, D.C. Dulles Intl

$596

Find similar

Aer Lingus

Dec 9

IAD5:05 pmWashington, D.C. Dulles Intl

19h 10m

1 stop

BRU6:15 pmBrussels Bruxelles-National

Dec 16

BRU10:15 amBrussels Bruxelles-National

11h 20m

1 stop

IAD3:35 pmWashington, D.C. Dulles Intl

$603

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Belgium that are best for you.

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Route

Depart

Return

Price

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Wed 1/21

8:30 pm-7:50 pm

1 stop17h 20m

Brussels Bruxelles-National

Tue 1/27

3:10 pm-7:09 pm

2 stops33h 59m

$511

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Thu 2/12

8:30 pm-2:30 pm

1 stop12h 00m

Brussels Bruxelles-National

Mon 2/16

10:20 am-5:15 pm

1 stop12h 55m

$513

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Sun 1/18

12:23 pm-9:40 am

2 stops15h 17m

Brussels Bruxelles-National

Sun 2/1

10:20 am-11:43 am

2 stops31h 23m

$514

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Wed 4/1

7:59 pm-10:40 am

2 stops32h 41m

Brussels Bruxelles-National

Sat 4/25

3:15 pm-4:50 pm

1 stop31h 35m

$515

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Thu 2/12

8:30 pm-9:40 am

1 stop31h 10m

Brussels Bruxelles-National

Mon 2/16

8:30 pm-11:41 am

2 stops45h 11m

$516

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Mon 1/12

12:23 pm-9:40 am

2 stops15h 17m

Brussels Bruxelles-National

Fri 1/16

3:10 pm-6:50 pm

1 stop33h 40m

$518

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Thu 1/8

8:30 pm-2:30 pm

1 stop12h 00m

Brussels Bruxelles-National

Fri 5/15

10:20 am-4:50 pm

1 stop12h 30m

$519

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Wed 2/11

8:30 pm-2:30 pm

1 stop12h 00m

Brussels Bruxelles-National

Mon 2/16

10:20 am-5:15 pm

1 stop12h 55m

$522

Washington, D.C.Brussels

IAD - CRL

IADCRL

Washington, D.C. Dulles Intl

Thu 2/12

8:30 pm-6:10 pm

2 stops15h 40m

Charleroi Brussels

Mon 2/16

7:25 am-5:15 pm

2 stops15h 50m

$535

Washington, D.C.Brussels

IAD - CRL

IADCRL

Washington, D.C. Dulles Intl

Sun 1/18

7:40 pm-10:15 pm

2 stops20h 35m

Charleroi Brussels

Tue 1/27

8:40 am-6:30 pm

2 stops15h 50m

$587

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Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to Belgium

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Belgium?

In general, September is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Belgium. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $622. If you are unable to visit Belgium during the month of September, then departing from Washington, D.C. Dulles Intl Airport during the month August is also very affordable. Most momondo users find prices during this month for around $674.

What is the cheapest day to depart on your flight to Belgium?

Our data shows that Wednesday is the least expensive day to fly to Belgium. Tickets to fly out on this day can be as low as $1,046. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $1,262. These prices are subject to change though, so be sure to set up a Price Alert for flights to Belgium.

What is the cheapest time of day to depart on your flight to Belgium?

Our most recent data shows that the best time of day to fly to Belgium is in the evening. Flights from Washington, D.C. Dulles Intl Airport to Belgium during this time can be as low as $714. Flights to Belgium are more costly in the morning, with an average ticket price of $1,396. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Washington, D.C. Dulles Intl to Belgium flight route?

Fly from Washington, D.C. Dulles Intl to Brussels Bruxelles-National for the best Washington, D.C. Dulles Intl - Belgium flight prices

How far in advance should I book a flight to Belgium?

You are more likely to see cheaper flights to Belgium from Washington, D.C. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Belgium for around $819 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Belgium from Washington, D.C. Dulles Intl Airport for as low as $681 on momondo.

What cabin class options are available on Washington, D.C. Dulles Intl to Belgium flights?

There are 3 cabin classes available to choose from on Washington, D.C. Dulles Intl to Belgium flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Washington, D.C. Dulles Intl Airport to Belgium flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Belgium

Best Price Found	$624
Fastest flight time	7h 30m
Direct flights	Every day
Airports in Belgium	1 airport

The best one-way flight to Belgium from Washington, D.C. Dulles Intl Airport in the past 72 hours is $624. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to Belgium found on momondo in the last 72 hours is $913.

The fastest flight from Washington, D.C. Dulles Intl Airport to Belgium takes 7h 30m

Direct flights go from Washington, D.C. Dulles Intl Airport to Belgium every day.

There is 1 airport near Belgium: Brussels Bruxelles-National (BRU)

Search flight deals

When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Belgium?
Prices for flights from Washington, D.C. Dulles Intl Airport to Belgium are refreshed on a daily basis.
How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Belgium?
As of November 2025, there are 11 operators available to choose from for flights from Washington, D.C. Dulles Intl Airport to Belgium.
How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Belgium?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. Dulles Intl Airport to Belgium.
What documentation or ID do you need to fly to Belgium?
The travel and health documents you'll need for your trip to Belgium may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Belgium. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Washington, D.C. Dulles Intl Airport to Belgium?
Based on momondo bookings for flights between Washington, D.C. Dulles Intl Airport and Belgium, the leading plane model is Boeing 777-300ER, making up 58.70% of the total bookings. Other popular models include Boeing 777 with 5.43%, Boeing 787-8 Dreamliner with 5.43%, and Airbus A321neo with 5.28%.

Best airlines flying from Washington, D.C. Dulles Intl Airport to Belgium

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Belgium with momondo

Airline	Rating	Free Cancellation	Price
Scandinavian Airlines	PriceFrom $419	Free Cancellation	Rating 7.4 1,590 reviews	Search Scandinavian Airlines flights
Icelandair	PriceFrom $441	Free Cancellation	Rating 7.0 582 reviews	Search Icelandair flights
KLM	PriceFrom $480	Free Cancellation	Rating 7.7 1,423 reviews	Search KLM flights
TAP AIR PORTUGAL	PriceFrom $480	Free Cancellation	Rating 7.1 2,075 reviews	Search TAP AIR PORTUGAL flights
Delta	PriceFrom $511	Free Cancellation	Rating 7.9 8,011 reviews	Search Delta flights
Aer Lingus	PriceFrom $539	Free Cancellation	Rating 7.2 1,382 reviews	Search Aer Lingus flights
Turkish Airlines	PriceFrom $540	Free Cancellation	Rating 7.3 4,069 reviews	Search Turkish Airlines flights
British Airways	PriceFrom $555	Free Cancellation	Rating 6.7 7,544 reviews	Search British Airways flights
United Airlines	PriceFrom $596	Free Cancellation	Rating 7.4 9,059 reviews	Search United Airlines flights
Brussels Airlines	PriceFrom $633	Free Cancellation	Rating 7.2 371 reviews	Search Brussels Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Belgium?

It is quick and easy to find Washington, D.C. to Belgium flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Belgium that suits you.

Can I find flights from Washington, D.C. to Belgium with flexible booking policies on momondo?

All flight searches from Washington, D.C. to Belgium on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Washington, D.C. to Belgium?

Once all potential Washington, D.C. to Belgium flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Washington, D.C. to Belgium right now. Can momondo alert me if prices change?

Price alerts on flights to Belgium from Washington, D.C. are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Belgium trip

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Cheap flights from Washington, D.C. Dulles Intl Airport to Belgium from $264

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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Belgium

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Scandinavian Airlines flights from Washington, D.C. Dulles Intl Airport to Belgium

Our best Scandinavian Airlines deals on Washington, D.C. Dulles Intl Airport to Belgium flight tickets

Aer Lingus flights from Washington, D.C. Dulles Intl Airport to Belgium

Our best Aer Lingus deals on Washington, D.C. Dulles Intl Airport to Belgium flight tickets

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Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Belgium that are best for you.

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How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to Belgium

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Belgium?

What is the cheapest day to depart on your flight to Belgium?

What is the cheapest time of day to depart on your flight to Belgium?

What is the cheapest Washington, D.C. Dulles Intl to Belgium flight route?

Fly from Washington, D.C. Dulles Intl to Brussels Bruxelles-National for the best Washington, D.C. Dulles Intl - Belgium flight prices

How far in advance should I book a flight to Belgium?

What cabin class options are available on Washington, D.C. Dulles Intl to Belgium flights?

There are 3 cabin classes available to choose from on Washington, D.C. Dulles Intl to Belgium flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

What is the cheapest airline that flies from Washington, D.C. Dulles Intl to Belgium?

Scandinavian Airlines is the most popular carrier operating from Washington, D.C. Dulles Intl to Belgium

What airlines fly to Belgium?

How many flights depart from Washington, D.C. Dulles Intl Airport to Belgium on average per day?

6 flights are operational daily from Washington, D.C. Dulles Intl Airport to Belgium as of November 2025. The most popular departure time for this route is 5:00PM, with 100% of flights per day taking off in the afternoon.

How many flights depart from Washington, D.C. Dulles Intl Airport to Belgium on average per week?

The number of flights available between Washington, D.C. Dulles Intl Airport and Belgium is 42 per week as of November 2025. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.

Cheap Washington, D.C. Dulles Intl Airport to Belgium flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Belgium

Best Price Found

Fastest flight time

Direct flights

Airports in Belgium

When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Belgium?

How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Belgium?

How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Belgium?

What documentation or ID do you need to fly to Belgium?

What is the most popular plane model from Washington, D.C. Dulles Intl Airport to Belgium?

Best airlines flying from Washington, D.C. Dulles Intl Airport to Belgium

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Belgium with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Belgium?

Can I find flights from Washington, D.C. to Belgium with flexible booking policies on momondo?

How can momondo help me find flights from Washington, D.C. to Belgium?

I’m not ready to book a flight from Washington, D.C. to Belgium right now. Can momondo alert me if prices change?

An easier way to manage your Belgium trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Belgium

Popular cities in Belgium

Popular flights according to clicks in the last 7 days on momondo