How does KAYAK find such low prices on flights from Washington to Brussels?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington to Brussels. Visit our flight page for the latest deals!>/a>

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington to Brussels?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Brussels from Washington is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from Washington to Brussels?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Brussels with an airline and back to Washington with another airline. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington to Brussels?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Brussels from Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

$219 CHEAP FLIGHTS from Washington to Brussels

KAYAK searches hundreds of travel sites at once for deals on flights to Brussels

...and more

Travelers love KAYAK

41.299.237 searches in the past 7 days on KAYAK

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Filter your dealsChoose cabin class, free Wi-Fi and more.

Cheapest round-trip

$411

Typical prices: $520-$705

Icelandair

Thu 3/5Thu 3/19

SEA - BRU • 1 stop

Cheapest one-way

$219

Typical prices: $444-$547

Icelandair

Wed 5/13

SEA - BRU • 1 stop

Start a new search

KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to Brussels!

Flight Deals

Cheap Flights from Washington to Brussels

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Washington to Brussels

Thu, Mar 5 - Thu, Mar 19

2:35 pm - 11:55 am

SEA

BRU

12h 20m

1 stop

12:50 pm - 6:00 pm

BRU

SEA

13h 10m

1 stop

$411Icelandair

Wed, Mar 25 - Mon, Mar 30

3:35 pm - 11:55 am

SEA

BRU

12h 20m

1 stop

1:50 pm - 8:40 pm

BRU

SEA

15h 50m

1 stop

$447Icelandair

Mon, May 4 - Mon, May 11

7:00 pm - 12:55 pm

SEA

BRU

32h 55m

1 stop

1:50 pm - 5:55 pm

BRU

SEA

13h 05m

1 stop

$461Icelandair

Thu, Apr 2 - Fri, Apr 17

3:30 pm - 12:55 pm

PDX

BRU

12h 25m

1 stop

1:50 pm - 6:00 pm

BRU

PDX

13h 10m

1 stop

$461Icelandair

Mon, Mar 9 - Mon, Mar 23

9:50 am - 8:55 am

PDX

BRU

39h 05m

2 stops

1:50 pm - 12:35 am

BRU

PDX

18h 45m

2 stops

$475Multiple Airlines

Tue, Apr 7 - Tue, Apr 21

3:40 pm - 4:15 pm

SEA

BRU

15h 35m

2 stops

9:25 am - 10:50 pm

BRU

SEA

22h 25m

2 stops

$476Multiple Airlines

Wed, Apr 8 - Tue, Apr 21

3:48 pm - 8:00 pm

SEA

BRU

19h 12m

2 stops

9:25 am - 4:37 pm

BRU

SEA

40h 12m

2 stops

$485United Airlines

Fri, Mar 6 - Fri, Mar 13

7:15 am - 1:15 pm

SEA

BRU

21h 00m

2 stops

10:00 am - 7:03 pm

BRU

SEA

41h 03m

2 stops

$486United Airlines

Wed, Mar 4 - Wed, Mar 11

3:10 pm - 1:10 pm

SEA

BRU

13h 00m

1 stop

9:05 am - 2:20 pm

BRU

SEA

13h 15m

1 stop

$487Lufthansa

Mon, Mar 9 - Mon, Mar 23

6:45 pm - 10:50 am

PDX

BRU

32h 05m

1 stop

11:50 am - 4:55 pm

BRU

PDX

13h 05m

1 stop

$512British Airways

Useful Info

Cheapest flight	$219

Flight from Seattle to Brussels Airport

How does KAYAK find such low prices on flights from Washington to Brussels?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington to Brussels.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington to Brussels?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Brussels from Washington is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Washington to Brussels?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Brussels with an airline and back to Washington with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington to Brussels?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Brussels from Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight to Brussels

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

Cabin class types available on flights to Washington

First Class flights to Brussels

Business Class flights to Brussels

Premium Economy Class flights to Brussels

Economy Class flights to Brussels

$219 Find Cheap Flights from Washington to Brussels

KAYAK searches hundreds of travel sites at once for deals on flights to Brussels

Everything you should know

Cheap Flights from Washington to Brussels

Recent round-trip flight deals from Washington to Brussels

Recent one-way flight deals from Washington to Brussels

Recent last minute flight deals from Washington to Brussels

Good to know

FAQs for booking flights from Washington to Brussels

How does KAYAK find such low prices on flights from Washington to Brussels?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington to Brussels.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington to Brussels?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Brussels from Washington is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Washington to Brussels?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Brussels with an airline and back to Washington with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington to Brussels?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Brussels from Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight to Brussels

Cabin class types available on flights to Washington

Complete your trip to Brussels with a hotel stay or car rental

Find direct flights for Brussels

Flights to other popular destinations

Flights from domestic origins to Brussels

Choose which airport to fly into in Brussels

Find deals for your return flight