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Cheap flights from Washington, D.C. Dulles Intl Airport to Brussels from $329

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Dulles Intl Airport to Brussels departing on 4/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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

Cheap round-trip flights

Enter your travel dates to find the best prices.
Scandinavian Airlines Logo
8:20 pm - 6:30 pm
IAD
-
BRU
16h 10m
1 stop
Scandinavian Airlines Logo
10:20 am - 5:00 pm
BRU
-
IAD
12h 40m
1 stop
$578Scandinavian Airlines
Sun, Apr 26 - Wed, Apr 29
Scandinavian Airlines Logo
8:20 pm - 8:30 pm
IAD
-
BRU
18h 10m
2 stops
Scandinavian Airlines Logo
7:00 pm - 5:00 pm
BRU
-
IAD
28h 00m
2 stops
$579Scandinavian Airlines
Sun, Sep 20 - Sun, Sep 27
Scandinavian Airlines Logo
8:20 pm - 10:40 am
IAD
-
BRU
32h 20m
2 stops
Scandinavian Airlines Logo
8:30 pm - 5:00 pm
BRU
-
IAD
26h 30m
1 stop
$581Scandinavian Airlines
Sun, Apr 26 - Sun, May 3
Scandinavian Airlines Logo
8:20 pm - 10:40 am
IAD
-
BRU
32h 20m
2 stops
Scandinavian Airlines Logo
9:20 pm - 5:00 pm
BRU
-
IAD
25h 40m
2 stops
$583Scandinavian Airlines
Sun, May 3 - Sun, May 10
Scandinavian Airlines Logo
8:20 pm - 8:30 pm
IAD
-
BRU
18h 10m
2 stops
Scandinavian Airlines Logo
8:30 pm - 5:00 pm
BRU
-
IAD
26h 30m
1 stop
$584Scandinavian Airlines
Sun, Apr 26 - Tue, May 12
Scandinavian Airlines Logo
8:20 pm - 8:30 pm
IAD
-
BRU
18h 10m
2 stops
Scandinavian Airlines Logo
3:15 pm - 5:00 pm
BRU
-
IAD
31h 45m
1 stop
$585Scandinavian Airlines
Sun, Apr 26 - Tue, May 5
Scandinavian Airlines Logo
8:20 pm - 10:40 am
IAD
-
BRU
32h 20m
2 stops
Scandinavian Airlines Logo
11:20 am - 5:00 pm
BRU
-
IAD
35h 40m
2 stops
$586Scandinavian Airlines
Sun, May 3 - Tue, May 12
Scandinavian Airlines Logo
8:20 pm - 8:30 pm
IAD
-
BRU
18h 10m
2 stops
Scandinavian Airlines Logo
8:30 pm - 5:00 pm
BRU
-
IAD
26h 30m
1 stop
$588Scandinavian Airlines
Sun, Apr 26 - Tue, May 5
Scandinavian Airlines Logo
8:20 pm - 10:40 am
IAD
-
BRU
32h 20m
2 stops
Scandinavian Airlines Logo
8:30 pm - 5:00 pm
BRU
-
IAD
26h 30m
1 stop
$590Scandinavian Airlines
Sun, May 3 - Tue, May 12
Scandinavian Airlines Logo
8:20 pm - 6:30 pm
IAD
-
BRU
16h 10m
1 stop
Scandinavian Airlines Logo
10:20 am - 5:00 pm
BRU
-
IAD
12h 40m
1 stop
$594Scandinavian Airlines
Wed, Sep 9 - Wed, Sep 23

Aer Lingus flights from Washington, D.C. Dulles Intl Airport to Brussels Bruxelles-National Airport

Our best Aer Lingus deals on Washington, D.C. Dulles Intl Airport to Brussels Bruxelles-National Airport flight tickets
Aer Lingus
May 14
IAD8:40 pmWashington, D.C. Dulles Intl
18h 05m
1 stop
BRU8:45 pmBrussels Bruxelles-National
May 18
BRU10:20 amBrussels Bruxelles-National
15h 05m
1 stop
IAD7:25 pmWashington, D.C. Dulles Intl
$673
Aer Lingus
Mar 31
IAD5:15 pmWashington, D.C. Dulles Intl
10h 25m
1 stop
BRU9:40 amBrussels Bruxelles-National
Apr 9
BRU10:20 amBrussels Bruxelles-National
11h 25m
1 stop
IAD3:45 pmWashington, D.C. Dulles Intl
$975

Scandinavian Airlines flights from Washington, D.C. Dulles Intl Airport to Brussels Bruxelles-National Airport

Our best Scandinavian Airlines deals on Washington, D.C. Dulles Intl Airport to Brussels Bruxelles-National Airport flight tickets
Scandinavian Airlines
Apr 26
IAD8:20 pmWashington, D.C. Dulles Intl
16h 10m
1 stop
BRU6:30 pmBrussels Bruxelles-National
Apr 29
BRU10:20 amBrussels Bruxelles-National
12h 40m
1 stop
IAD5:00 pmWashington, D.C. Dulles Intl
$578
Scandinavian Airlines
Sep 20
IAD8:20 pmWashington, D.C. Dulles Intl
18h 10m
2 stops
BRU8:30 pmBrussels Bruxelles-National
Sep 27
BRU7:00 pmBrussels Bruxelles-National
28h 00m
2 stops
IAD5:00 pmWashington, D.C. Dulles Intl
$579
Scandinavian Airlines
Apr 26
IAD8:20 pmWashington, D.C. Dulles Intl
32h 20m
2 stops
BRU10:40 amBrussels Bruxelles-National
May 3
BRU8:30 pmBrussels Bruxelles-National
26h 30m
1 stop
IAD5:00 pmWashington, D.C. Dulles Intl
$581

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport to Brussels Bruxelles-National Airport 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, momondo users made 832,500 searches. Data last updated March 29, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Brussels Bruxelles-National Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Sun 4/26

8:20 pm-6:30 pm

1 stop16h 10m

Brussels Bruxelles-National

Wed 4/29

10:20 am-5:00 pm

1 stop12h 40m

$578

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Sun 9/20

8:20 pm-8:30 pm

2 stops18h 10m

Brussels Bruxelles-National

Sun 9/27

7:00 pm-5:00 pm

2 stops28h 00m

$579

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Sun 4/26

8:20 pm-10:40 am

2 stops32h 20m

Brussels Bruxelles-National

Sun 5/3

8:30 pm-5:00 pm

1 stop26h 30m

$581

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Sun 5/3

8:20 pm-10:40 am

2 stops32h 20m

Brussels Bruxelles-National

Sun 5/10

9:20 pm-5:00 pm

2 stops25h 40m

$583

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Sun 4/26

8:20 pm-8:30 pm

2 stops18h 10m

Brussels Bruxelles-National

Tue 5/12

8:30 pm-5:00 pm

1 stop26h 30m

$584

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Sun 4/26

8:20 pm-8:30 pm

2 stops18h 10m

Brussels Bruxelles-National

Tue 5/5

3:15 pm-5:00 pm

1 stop31h 45m

$585

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Sun 5/3

8:20 pm-10:40 am

2 stops32h 20m

Brussels Bruxelles-National

Tue 5/12

11:20 am-5:00 pm

2 stops35h 40m

$586

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Sun 4/26

8:20 pm-8:30 pm

2 stops18h 10m

Brussels Bruxelles-National

Tue 5/5

8:30 pm-5:00 pm

1 stop26h 30m

$588

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Sun 5/3

8:20 pm-10:40 am

2 stops32h 20m

Brussels Bruxelles-National

Tue 5/12

8:30 pm-5:00 pm

1 stop26h 30m

$590

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Wed 9/9

8:20 pm-6:30 pm

1 stop16h 10m

Brussels Bruxelles-National

Wed 9/23

10:20 am-5:00 pm

1 stop12h 40m

$594

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Brussels from

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to Brussels Bruxelles-National Airport

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 typical price of a round-trip flight between Washington, D.C. Dulles Intl Airport and Brussels Bruxelles-National Airport?

What is the cheapest month to fly to Brussels Bruxelles-National Airport?

The cheapest month to fly to Brussels Bruxelles-National Airport from Washington, D.C. Dulles Intl Airport is in January. Flight prices, which tend to average around $600, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of January, then book flights to Brussels Bruxelles-National Airport from Washington, D.C. Dulles Intl Airport during September instead. Flights to Brussels Bruxelles-National Airport in September, while not as cheap as those in January, still average around $620.

What is the cheapest day to depart on your flight to Brussels Bruxelles-National Airport?

The cheapest day to depart from Washington, D.C. Dulles Intl Airport to Brussels Bruxelles-National Airport is on a Wednesday. Travelers who choose to depart for Brussels Bruxelles-National Airport on a Wednesday will often find tickets for as low as $1,057. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Washington, D.C. Dulles Intl Airport to Brussels Bruxelles-National Airport for around $1,273.

What is the cheapest Washington, D.C. Dulles Intl to Brussels Bruxelles-National flight route?

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

How far in advance should I book a flight to Brussels Bruxelles-National Airport?

You are more likely to see cheaper flights to Brussels Bruxelles-National Airport from Washington, D.C. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Brussels Bruxelles-National Airport for around $800 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Brussels Bruxelles-National Airport from Washington, D.C. Dulles Intl Airport for as low as $601 on momondo.

What cabin class options are available on Washington, D.C. Dulles Intl to Brussels Bruxelles-National flights?

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

How have Washington, D.C. Dulles Intl Airport to Brussels Bruxelles-National Airport flight prices changed over time?

As of March 2026, prices for Washington, D.C. Dulles Intl Airport to Brussels Bruxelles-National Airport flights are approximately 8% more expensive when compared to flights at the same time last year.

When to book flights from Washington, D.C. Dulles Intl Airport to Brussels Bruxelles-National Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Dulles Intl Airport to Brussels Bruxelles-National Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. Dulles Intl Airport to Brussels Bruxelles-National Airport (IAD to BRU) flight deals and tips

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

Best Price Found

$516

Fastest flight time

7h 45m

Direct flights

Every day
The best one-way flight to Brussels Bruxelles-National Airport from Washington, D.C. Dulles Intl Airport in the past 72 hours is $516. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to Brussels Bruxelles-National Airport found on momondo in the last 72 hours is $1,193.
The fastest flight from Washington, D.C. Dulles Intl Airport to Brussels Bruxelles-National Airport takes 7h 45m
Direct flights go from Washington, D.C. Dulles Intl Airport to Brussels Bruxelles-National Airport every day.
Search flight deals

  • How far is Washington, D.C. Dulles Intl to Brussels Bruxelles-National by plane?

    The straight-line distance from Washington, D.C. Dulles Intl to Brussels Bruxelles-National is 3878.5 mi. Flights usually cover this in 7h 45m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Brussels Bruxelles-National Airport?

    Prices for flights from Washington, D.C. Dulles Intl Airport to Brussels Bruxelles-National Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Brussels Bruxelles-National Airport?

  • How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Brussels Bruxelles-National Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. Dulles Intl Airport to Brussels Bruxelles-National Airport.

  • What documentation or ID do you need to fly to Brussels Bruxelles-National Airport?

    The necessary travel and health documents for your Brussels Bruxelles-National Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking 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 Brussels Bruxelles-National Airport?

  • What is the most popular airline from Washington, D.C. Dulles Intl Airport to Brussels Bruxelles-National Airport?

Best airlines flying from Washington, D.C. Dulles Intl Airport to Brussels Bruxelles-National Airport

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Brussels Bruxelles-National Airport with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $345Free CancellationRating
6.7
7,830 reviews
Search British Airways flights
IcelandairPriceFrom $393Free CancellationRating
7.0
627 reviews
Search Icelandair flights
TAP AIR PORTUGALPriceFrom $440Free CancellationRating
7.1
2,184 reviews
Search TAP AIR PORTUGAL flights
Scandinavian AirlinesPriceFrom $446Free CancellationRating
7.3
1,727 reviews
Search Scandinavian Airlines flights
DeltaPriceFrom $511Free CancellationRating
7.9
8,358 reviews
Search Delta flights
Aer LingusPriceFrom $539Free CancellationRating
7.2
1,491 reviews
Search Aer Lingus flights
Turkish AirlinesPriceFrom $540Free CancellationRating
7.4
4,286 reviews
Search Turkish Airlines flights
United AirlinesPriceFrom $592Free CancellationRating
7.4
9,509 reviews
Search United Airlines flights
Brussels AirlinesPriceFrom $633Free CancellationRating
7.2
396 reviews
Search Brussels Airlines flights
LufthansaPriceFrom $775Free CancellationRating
6.8
7,872 reviews
Search Lufthansa flights

  • United Airlines Flights From Washington, D.C. Dulles Intl Airport to Brussels Bruxelles-National Airport

    Across 1 United Airlines flight from Washington, D.C. Dulles Intl Airport to Brussels Bruxelles-National Airport this week, the average price was $932, with the best United Airlines deals starting from $592 round-trip. 9,508 users have rated United Airlines on momondo, with an average score of 7.4/10.

  • Brussels Airlines Flights From Washington, D.C. Dulles Intl Airport to Brussels Bruxelles-National Airport

    $633 is the best Brussels Airlines flight deal from Washington, D.C. Dulles Intl Airport to Brussels Bruxelles-National Airport found on momondo over the last 72 hours. The average Brussels Airlines ticket price found was closer to $1,064, however, with flight time and availability significantly affecting the price. Brussels Airlines (7.2/10 from 396 user reviews) flies into Brussels Bruxelles-National Airport from Washington, D.C. Dulles Intl Airport 1 time in an average week so prices can vary.

Traveling to a place near Brussels?

Book flights to Brussels if you plan to visit one of these locations
Ghent
Bruges
Leuven
Charleroi
Zaventem
Hasselt
Genk
Namur
Dinant
Waterloo
Durbuy
Mons
Aalst
Spa
Knokke-Heist
Mechelen
Francorchamps
Tournai
Oostkamp
Halle

Why use momondo?

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

Finding the right flight to Brussels from Washington, D.C. is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Brussels quick and easy, saving you time and money.

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

momondo does allow users to show only those flights to Brussels from Washington, D.C. which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search for Washington, D.C. to Brussels flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Price alerts on flights to Brussels 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.

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