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$230+ Cheap flights from Washington to Brussels

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 3/27. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BRU
Feb 27 — Mar 61
Fri 2/27
Fri 3/6
1 adult, Economy
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Cheap flight deals from Washington to Brussels

Cheapest flights from Washington to Brussels
Explore the most affordable flight options available from Washington to Brussels. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 28, 2026.

This Flightnetwork deal was found by Cheapflights users on 1/27. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/72:45 pm
PDX
-
BRU
1 stop12h 10m
Icelandair
Fri 3/2012:50 pm
BRU
-
PDX
1 stop13h 10m
Icelandair
Deal found 1/27$386
This oojo deal was found by Cheapflights users on 1/26. 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.
Fri 5/17:00 pm
SEA
-
BRU
1 stop32h 55m
Icelandair
Sun 5/101:50 pm
BRU
-
SEA
1 stop15h 50m
Icelandair
Deal found 1/26$407
This Cheapflightsfares deal was found by Cheapflights users on 1/27. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/223:40 pm
SEA
-
BRU
1 stop12h 15m
Icelandair
Thu 5/71:50 pm
BRU
-
SEA
1 stop15h 50m
Icelandair
Deal found 1/27$416
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/42:35 pm
SEA
-
BRU
1 stop12h 20m
Icelandair
Thu 2/1212:50 pm
BRU
-
SEA
1 stop13h 10m
Icelandair
Deal found 1/27$441
This oojo deal was found by Cheapflights users on 1/27. 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.
Sat 5/23:30 pm
PDX
-
BRU
1 stop12h 25m
Icelandair
Sun 5/101:50 pm
BRU
-
PDX
1 stop13h 10m
Icelandair
Deal found 1/27$444
This oojo deal was found by Cheapflights users on 1/27. 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 5/33:40 pm
SEA
-
BRU
1 stop12h 15m
Icelandair
Sat 5/161:50 pm
BRU
-
SEA
1 stop13h 05m
Icelandair
Deal found 1/27$447
This FlightHub deal was found by Cheapflights users on 1/26. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/53:40 pm
SEA
-
BRU
1 stop12h 15m
Icelandair
Wed 5/271:50 pm
BRU
-
SEA
1 stop15h 50m
Icelandair
Deal found 1/26$452
This FlightHub deal was found by Cheapflights users on 1/26. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/47:00 pm
SEA
-
BRU
1 stop32h 55m
Icelandair
Wed 5/271:50 pm
BRU
-
SEA
1 stop15h 50m
Icelandair
Deal found 1/26$453
This Gotogate deal was found by Cheapflights users on 1/26. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/283:40 pm
SEA
-
BRU
2 stops19h 20m
Multiple Airlines
Fri 5/159:25 am
BRU
-
SEA
1 stop19h 12m
Multiple Airlines
Deal found 1/26$468
This KAYAK deal was found by Cheapflights users on 1/26. 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.
Sat 5/23:40 pm
SEA
-
BRU
1 stop12h 15m
Icelandair
Mon 5/251:50 pm
BRU
-
SEA
1 stop15h 50m
Icelandair
Deal found 1/26$474
This KAYAK deal was found by Cheapflights users on 1/26. 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 5/47:00 pm
SEA
-
BRU
1 stop32h 55m
Icelandair
Mon 5/251:50 pm
BRU
-
SEA
1 stop15h 50m
Icelandair
Deal found 1/26$476
This oojo deal was found by Cheapflights users on 1/26. 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.
Tue 4/287:00 pm
SEA
-
BRU
1 stop32h 55m
Icelandair
Fri 5/151:50 pm
BRU
-
SEA
1 stop13h 05m
Icelandair
Deal found 1/26$478

Find flight deals from Washington to Brussels

Keep the following information in mind while searching for Washington to Brussels flight deals. Data was last updated January 28, 2026.

Round-trip from

$386
(Flightnetwork)

One-way from

$230
(oojo)

Popular in

December

Cheapest in

October

Average price

$516
From Washington to Brussels
Search Deals
One-way flight from Washington to Brussels
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($20 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington to Brussels 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 January 28, 2026.
Use the filters below to find and compare flights from Washington to Brussels that are best for you.

Fly from

Washington

Fly to

Brussels

Route

Depart

Return

Price

PortlandBrussels

PDX - BRU

PDXBRU

Portland

Sat 3/7

2:45 pm-11:55 am

1 stop12h 10m

Brussels Bruxelles-National

Fri 3/20

12:50 pm-6:00 pm

1 stop13h 10m

$386

PortlandBrussels

PDX - BRU

PDXBRU

Portland

Sat 5/2

3:30 pm-12:55 pm

1 stop12h 25m

Brussels Bruxelles-National

Sun 5/10

1:50 pm-6:00 pm

1 stop13h 10m

$444

SeattleBrussels

SEA - BRU

SEABRU

Seattle/Tacoma Intl

Sun 5/3

3:40 pm-12:55 pm

1 stop12h 15m

Brussels Bruxelles-National

Wed 5/27

1:50 pm-8:40 pm

1 stop15h 50m

$474

SeattleBrussels

SEA - BRU

SEABRU

Seattle/Tacoma Intl

Wed 3/25

3:35 pm-11:55 am

1 stop12h 20m

Brussels Bruxelles-National

Mon 3/30

1:50 pm-8:40 pm

1 stop15h 50m

$487

SeattleBrussels

SEA - BRU

SEABRU

Seattle/Tacoma Intl

Wed 4/22

8:00 am-8:00 pm

2 stops27h 00m

Brussels Bruxelles-National

Thu 5/7

9:25 am-7:37 pm

1 stop19h 12m

$497

SeattleBrussels

SEA - BRU

SEABRU

Seattle/Tacoma Intl

Tue 3/10

12:25 pm-1:15 pm

2 stops16h 50m

Brussels Bruxelles-National

Wed 4/15

8:30 am-12:20 pm

1 stop12h 50m

$502

PortlandBrussels

PDX - BRU

PDXBRU

Portland

Sat 3/7

11:00 am-1:15 pm

2 stops17h 15m

Brussels Bruxelles-National

Fri 3/20

10:15 am-9:52 pm

1 stop19h 37m

$502

PortlandBrussels

PDX - BRU

PDXBRU

Portland

Mon 2/23

5:35 am-1:15 pm

2 stops22h 40m

Brussels Bruxelles-National

Mon 3/2

10:10 am-6:49 pm

1 stop17h 39m

$505

PortlandBrussels

PDX - BRU

PDXBRU

Portland

Wed 4/22

10:50 am-9:00 am

1 stop13h 10m

Brussels Bruxelles-National

Wed 4/29

12:00 pm-8:42 pm

1 stop17h 42m

$508

PortlandBrussels

PDX - BRU

PDXBRU

Portland

Mon 2/23

5:45 pm-4:40 pm

1 stop13h 55m

Brussels Bruxelles-National

Mon 3/2

11:50 am-3:55 pm

1 stop13h 05m

$509

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 47 results
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Best time to book a flight from Washington to Brussels

Have a flexible travel schedule? Discover the best time to fly to Brussels from Washington 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 to Brussels

What is the cheapest month to book a flight from State of Washington to Brussels?

Currently, January is the cheapest month in which you can book a flight from State of Washington to Brussels (average of $378). Flying from State of Washington to Brussels in July is currently the most expensive (average of $505). 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.

How much does it cost to fly round-trip from State of Washington to Brussels?

Related info for your journey

Find useful and relevant information for your journey from Washington to Brussels. 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 State of Washington to Brussels?

    There are many flights that can get you from State of Washington to Brussels in 12h 10m. Fly via Icelandair or United Airlines to get the fastest option. The distance from State of Washington to Brussels is about 5057 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from State of Washington to Brussels one-way?

    The cheapest airlines for a one-way flight from State of Washington to Brussels are Icelandair ($175), United Airlines ($324), and KLM ($373).

  • What are the most popular routes from State of Washington to Brussels?

    The most popular route from State of Washington to Brussels is Seattle/Tacoma Intl - Brussels Bruxelles-National. You may also consider Portland - Brussels Bruxelles-National or Seattle/Tacoma Intl - Charleroi Brussels.

  • Can I find deals for flights from Washington to Brussels that include hotel bookings?

    Yes. In addition to deals on Washington to Brussels flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington to Brussels?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to Brussels.

  • Can I find deals for business class flights from Washington to Brussels?

    Yes. Cheapflights offers flight deals from Washington to Brussels 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 State of Washington to Brussels?

    Currently, January is the cheapest month in which you can book a flight from State of Washington to Brussels (average of $378). Flying from State of Washington to Brussels in July is currently the most expensive (average of $505). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Washington to Brussels

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Bruxelles-National flights
Newark to Bruxelles-National flights
Dulles Intl to Bruxelles-National flights
LaGuardia to Bruxelles-National flights
O'Hare Intl to Bruxelles-National flights
Baltimore to Bruxelles-National flights
Seattle to Bruxelles-National flights
Reagan-National to Bruxelles-National flights
Boston to Bruxelles-National flights
Los Angeles to Bruxelles-National flights
Atlanta to Bruxelles-National flights
John F Kennedy Intl to Charleroi Brussels flights
Dallas/Fort Worth to Bruxelles-National flights
Miami to Bruxelles-National flights
Hobby to Bruxelles-National flights
San Francisco to Bruxelles-National flights
Charlotte to Bruxelles-National flights
Austin to Bruxelles-National flights
Newark to Charleroi Brussels flights
Midway to Bruxelles-National flights
Dulles Intl to Charleroi Brussels flights
Sky Harbor Intl to Bruxelles-National flights
Orlando to Bruxelles-National flights
Philadelphia to Bruxelles-National flights
George Bush Intcntl to Bruxelles-National flights
Detroit to Bruxelles-National flights
Denver to Bruxelles-National flights
Columbus to Bruxelles-National flights
Tampa to Bruxelles-National flights
San Diego to Bruxelles-National flights
Love Field to Bruxelles-National flights
Minneapolis to Bruxelles-National flights
Cincinnati to Bruxelles-National flights
O'Hare Intl to Charleroi Brussels flights
Cleveland to Bruxelles-National flights
Santa Ana to Bruxelles-National flights
Boston to Charleroi Brussels flights
Tulsa to Bruxelles-National flights
Fort Lauderdale to Bruxelles-National flights
Portland to Bruxelles-National flights
Los Angeles to Charleroi Brussels flights
Ontario to Bruxelles-National flights
Raleigh to Bruxelles-National flights
Omaha to Bruxelles-National flights
Nashville to Bruxelles-National flights
Indianapolis to Bruxelles-National flights
Madison to Bruxelles-National flights
San Jose to Bruxelles-National flights
St. Louis to Bruxelles-National flights

Top 9 airlines flying from Washington to Brussels

Discover the top 9 airlines that operate flights from Washington to Brussels. 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 January 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$385Average$483FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$474Average$727FlexibilityNo cancel feeOn-time70%
DeltaCheapest$482Average$683FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$483Average$730FlexibilityNo cancel feeOn-time69%
Virgin AtlanticCheapest$488Average$491FlexibilityNo cancel feeOn-time72%
LufthansaCheapest$494Average$684FlexibilityNo cancel feeOn-time76%
KLMCheapest$508Average$696FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$518Average$808FlexibilityNo cancel feeOn-time67%
Aer LingusCheapest$536Average$592FlexibilityNo cancel feeOn-timeN/A

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