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Cheap flights from Washington, D.C. to Brussels from $269

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. to Brussels departing on 9/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Washington, D.C. to Brussels

Cheap round-trip flights

Logo
6:50 pm - 9:55 pmBWI-BRU
21h 05m2 stops
Logo
9:35 am - 5:40 pmBRU-BWI
14h 05m2 stops
$408
Find Deal
Sun, Sep 7 - Wed, Sep 10
Scandinavian Airlines Logo
10:05 pm - 11:15 amIAD-BRU
55h 10m2 stops
Scandinavian Airlines Logo
9:40 pm - 6:15 pmBRU-IAD
49h 35m2 stops
$487Scandinavian Airlines
Find Deal
Thu, Oct 9 - Mon, Oct 27
Aer Lingus Logo
6:05 pm - 9:35 amIAD-BRU
10h 30m1 stop
Aer Lingus Logo
10:15 am - 3:35 pmBRU-IAD
11h 20m1 stop
$551Aer Lingus
Find Deal
Tue, Oct 28 - Mon, Nov 3
Aer Lingus Logo
5:20 pm - 9:40 amIAD-BRU
10h 20m1 stop
Aer Lingus Logo
10:20 am - 7:30 pmBRU-IAD
15h 10m1 stop
$562Aer Lingus
Find Deal
Mon, Oct 13 - Tue, Oct 21
United Airlines Logo
6:00 am - 7:50 amDCA-BRU
19h 50m1 stop
United Airlines Logo
7:00 am - 3:31 pmBRU-DCA
14h 31m2 stops
$724United Airlines
Find Deal
Wed, Dec 24 - Fri, Jan 9
Icelandair Logo
8:40 pm - 11:55 amBWI-BRU
10h 15m1 stop
Icelandair Logo
12:50 pm - 6:40 pmBRU-BWI
11h 50m1 stop
$728Icelandair
Find Deal
Wed, Oct 29 - Sun, Nov 2
United Airlines Logo
6:15 am - 7:55 amBWI-BRU
20h 40m1 stop
United Airlines Logo
11:15 am - 9:24 pmBRU-BWI
16h 09m2 stops
$731United Airlines
Find Deal
Tue, Oct 28 - Tue, Nov 4
British Airways Logo
9:35 pm - 5:00 pmBWI-BRU
14h 25m1 stop
British Airways Logo
12:00 pm - 6:45 pmBRU-BWI
12h 45m1 stop
$744British Airways
Find Deal
Tue, Oct 28 - Tue, Nov 4
Icelandair Logo
7:40 pm - 11:55 amBWI-BRU
10h 15m1 stop
Icelandair Logo
12:50 pm - 6:40 pmBRU-BWI
11h 50m1 stop
$749Icelandair
Find Deal
Wed, Jan 7 - Sun, Jan 11
British Airways Logo
8:35 pm - 4:20 pmBWI-BRU
13h 45m1 stop
British Airways Logo
9:45 pm - 6:45 pmBRU-BWI
27h 00m1 stop
$768British Airways
Find Deal
Wed, Jan 21 - Tue, Jan 27

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

Our best Scandinavian Airlines deals on Washington, D.C. to Brussels Bruxelles-National Airport flight tickets
Scandinavian Airlines
Oct 9
IAD10:05 pmWashington, D.C. Dulles Intl
55h 10m
2 stops
BRU11:15 amBrussels Bruxelles-National
Oct 27
BRU9:40 pmBrussels Bruxelles-National
49h 35m
2 stops
IAD6:15 pmWashington, D.C. Dulles Intl
$487
Find similar
Scandinavian Airlines
Oct 7
IAD10:05 pmWashington, D.C. Dulles Intl
14h 15m
2 stops
BRU6:20 pmBrussels Bruxelles-National
Oct 15
BRU10:55 amBrussels Bruxelles-National
15h 04m
2 stops
IAD7:59 pmWashington, D.C. Dulles Intl
$490
Find similar
Scandinavian Airlines
Nov 13
IAD8:30 pmWashington, D.C. Dulles Intl
31h 10m
1 stop
BRU9:40 amBrussels Bruxelles-National
Dec 2
BRU8:30 pmBrussels Bruxelles-National
26h 45m
1 stop
IAD5:15 pmWashington, D.C. Dulles Intl
$491
Find similar

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

Our best Aer Lingus deals on Washington, D.C. to Brussels Bruxelles-National Airport flight tickets
Aer Lingus
Oct 28
IAD6:05 pmWashington, D.C. Dulles Intl
10h 30m
1 stop
BRU9:35 amBrussels Bruxelles-National
Nov 3
BRU10:15 amBrussels Bruxelles-National
11h 20m
1 stop
IAD3:35 pmWashington, D.C. Dulles Intl
$551
Find similar
Aer Lingus
Oct 13
IAD5:20 pmWashington, D.C. Dulles Intl
10h 20m
1 stop
BRU9:40 amBrussels Bruxelles-National
Oct 21
BRU10:20 amBrussels Bruxelles-National
15h 10m
1 stop
IAD7:30 pmWashington, D.C. Dulles Intl
$562
Find similar
Aer Lingus
Sep 3
IAD5:20 pmWashington, D.C. Dulles Intl
10h 20m
1 stop
BRU9:40 amBrussels Bruxelles-National
Sep 7
BRU10:20 amBrussels Bruxelles-National
14h 35m
1 stop
IAD6:55 pmWashington, D.C. Dulles Intl
$765
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. 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 August 25, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Brussels Bruxelles-National Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BaltimoreBrussels

BWI - BRU

BWIBRU

Baltimore/Washington

Sun 9/7

6:50 pm-9:55 pm

2 stops21h 05m

Brussels Bruxelles-National

Wed 9/10

9:35 am-5:40 pm

2 stops14h 05m

$408

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Thu 10/9

10:05 pm-11:15 am

2 stops55h 10m

Brussels Bruxelles-National

Mon 10/27

9:40 pm-6:15 pm

2 stops49h 35m

$487

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Tue 10/28

6:05 pm-9:35 am

1 stop10h 30m

Brussels Bruxelles-National

Mon 11/3

10:15 am-3:35 pm

1 stop11h 20m

$551

Washington, D.C.Brussels

IAD - BRU

IADBRU

Washington, D.C. Dulles Intl

Mon 10/13

5:20 pm-9:40 am

1 stop10h 20m

Brussels Bruxelles-National

Tue 10/21

10:20 am-7:30 pm

1 stop15h 10m

$562

Washington, D.C.Brussels

DCA - BRU

DCABRU

Washington, D.C. Reagan-National

Wed 12/24

6:00 am-7:50 am

1 stop19h 50m

Brussels Bruxelles-National

Fri 1/9

7:00 am-3:31 pm

2 stops14h 31m

$724

BaltimoreBrussels

BWI - BRU

BWIBRU

Baltimore/Washington

Wed 10/29

8:40 pm-11:55 am

1 stop10h 15m

Brussels Bruxelles-National

Sun 11/2

12:50 pm-6:40 pm

1 stop11h 50m

$728

BaltimoreBrussels

BWI - BRU

BWIBRU

Baltimore/Washington

Tue 10/28

6:15 am-7:55 am

1 stop20h 40m

Brussels Bruxelles-National

Tue 11/4

11:15 am-9:24 pm

2 stops16h 09m

$731

BaltimoreBrussels

BWI - BRU

BWIBRU

Baltimore/Washington

Tue 10/28

9:35 pm-5:00 pm

1 stop14h 25m

Brussels Bruxelles-National

Tue 11/4

12:00 pm-6:45 pm

1 stop12h 45m

$744

BaltimoreBrussels

BWI - BRU

BWIBRU

Baltimore/Washington

Wed 1/7

7:40 pm-11:55 am

1 stop10h 15m

Brussels Bruxelles-National

Sun 1/11

12:50 pm-6:40 pm

1 stop11h 50m

$749

BaltimoreBrussels

BWI - BRU

BWIBRU

Baltimore/Washington

Wed 1/21

8:35 pm-4:20 pm

1 stop13h 45m

Brussels Bruxelles-National

Tue 1/27

9:45 pm-6:45 pm

1 stop27h 00m

$768

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. 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 cheapest month to fly to Brussels Bruxelles-National Airport?

The cheapest month to fly to Brussels Bruxelles-National Airport from Washington, D.C. is in January. Flight prices, which tend to average around $582, 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. during August instead. Flights to Brussels Bruxelles-National Airport in August, while not as cheap as those in January, still average around $645.

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

The cheapest day to depart from Washington, D.C. 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 $1,052. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Washington, D.C. to Brussels Bruxelles-National Airport for around $1,248.

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

Our most recent data shows that the best time of day to fly to Brussels Bruxelles-National Airport is at noon. Flights from Washington, D.C. to Brussels Bruxelles-National Airport during this time can be as low as $668. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $1,160 on average. Flights to Brussels Bruxelles-National Airport from Washington, D.C. in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

Fly from Washington, D.C. Dulles Intl to Brussels Bruxelles-National for the best Washington, D.C. - 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. when booking weeks ahead of your departure date. In general, you can expect to find flights to Brussels Bruxelles-National Airport for around $830 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. for as low as $659 on momondo.

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

There are 3 cabin classes available to choose from on Washington, D.C. 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.

Can stopping save me money on Washington, D.C. to Brussels Bruxelles-National Airport flights?

You could potentially save up to 20% on your flight if you consider stops on a Washington, D.C. to Brussels Bruxelles-National Airport flight.

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

As of August 2025, prices for Washington, D.C. to Brussels Bruxelles-National Airport flights are approximately 10% more expensive when compared to flights at the same time last year.

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

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. 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. to Brussels Bruxelles-National Airport (WAS to BRU) flight deals and tips

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

Best Price Found

$606

Fastest flight time

7h 30m

Direct flights

Every day
The best one-way flight to Brussels Bruxelles-National Airport from Washington, D.C. in the past 72 hours is $606. The best round-trip flight deal from Washington, D.C. to Brussels Bruxelles-National Airport found on momondo in the last 72 hours is $700.
The fastest flight from Washington, D.C. to Brussels Bruxelles-National Airport takes 7h 30m
Direct flights go from Washington, D.C. to Brussels Bruxelles-National Airport every day.
Search flight deals

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

    A flight from Washington, D.C. to Brussels Bruxelles-National will travel around 3863.7 mi. By plane, this route typically takes 9h 40m.

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

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

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

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

    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. to Brussels Bruxelles-National Airport.

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

    The travel and health documents you'll need for your trip to Brussels Bruxelles-National Airport 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 Brussels Bruxelles-National Airport. 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. to Brussels Bruxelles-National Airport?

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

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

Compare and see reviews for airlines that fly from Washington, D.C. to Brussels Bruxelles-National Airport with momondo
Airline
Rating
Free Cancellation
Price
Scandinavian AirlinesPriceFrom $401Free CancellationRating
7.4
1,473 reviews
Search Scandinavian Airlines flights
PLAYPriceFrom $415Free CancellationRating
7.0
103 reviews
Search PLAY flights
IcelandairPriceFrom $452Free CancellationRating
7.0
533 reviews
Search Icelandair flights
TAP AIR PORTUGALPriceFrom $492Free CancellationRating
7.1
1,962 reviews
Search TAP AIR PORTUGAL flights
KLMPriceFrom $496Free CancellationRating
7.8
1,388 reviews
Search KLM flights
Turkish AirlinesPriceFrom $552Free CancellationRating
7.3
3,953 reviews
Search Turkish Airlines flights
British AirwaysPriceFrom $557Free CancellationRating
6.7
7,305 reviews
Search British Airways flights
Aer LingusPriceFrom $559Free CancellationRating
7.2
1,230 reviews
Search Aer Lingus flights
United AirlinesPriceFrom $598Free CancellationRating
7.4
8,940 reviews
Search United Airlines flights
Brussels AirlinesPriceFrom $633Free CancellationRating
7.2
351 reviews
Search Brussels Airlines flights

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

    Across 12 United Airlines flights from Washington, D.C. to Brussels Bruxelles-National Airport this week, the average price was $1,003, with the best United Airlines deals starting from $598 round-trip. 8,940 users have rated United Airlines on momondo, with an average score of 7.4/10.

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

    Across 351 Brussels Airlines reviews on momondo, the average score is 7.2/10. Brussels Airlines flies from Washington, D.C. to Brussels Bruxelles-National Airport about 10 times each week, with ticket deals ranging from $633 to $1,033. Price data is based on momondo searches in the last 72 hours.

Traveling to a place near Brussels?

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

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Washington, D.C. to Brussels. Millions of users trust and use momondo every year so you are in good hands.

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

All flight searches from Washington, D.C. to Brussels 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 Brussels?

Once all potential Washington, D.C. to Brussels 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 Brussels right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Washington, D.C. to Brussels flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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