HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Brussels

$327+ 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 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BRU
ene. 15 — ene. 221
jue. 1/15
jue. 1/22
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Washington to Brussels with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 diciembre 16, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 12/15. 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.
mié. 12/313:10 pmSEA - BRU
1 stop13h 00mLufthansa
mié. 1/710:00 amBRU - SEA
2 stops18h 16mLufthansa
Deal found 12/15$750
This KLM deal was found by Cheapflights users on 12/16. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/267:10 amSEA - BRU
1 stop16h 50mKLM
mar. 1/132:45 pmBRU - SEA
1 stop30h 05mKLM
Deal found 12/16$758
This United Airlines deal was found by Cheapflights users on 12/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/2611:59 pmSEA - BRU
2 stops28h 11mUnited Airlines
mar. 1/1310:00 amBRU - SEA
2 stops32h 55mUnited Airlines
Deal found 12/16$768
This FlightHub deal was found by Cheapflights users on 12/16. 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.
mié. 12/313:10 pmSEA - BRU
1 stop19h 45mMultiple Airlines
mié. 1/710:00 amBRU - SEA
2 stops21h 16mMultiple Airlines
Deal found 12/16$800
This United Airlines deal was found by Cheapflights users on 12/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/2412:35 pmSEA - BRU
2 stops39h 40mUnited Airlines
mar. 12/304:55 pmBRU - SEA
2 stops34h 51mUnited Airlines
Deal found 12/14$907
This United Airlines deal was found by Cheapflights users on 12/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/2412:35 pmSEA - BRU
2 stops39h 40mUnited Airlines
mié. 12/3110:10 amBRU - SEA
1 stop34h 53mUnited Airlines
Deal found 12/14$1,075
This Expedia deal was found by Cheapflights users on 12/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/2110:11 pmPDX - BRU
2 stops50h 24mMultiple Airlines
dom. 1/1810:15 amBRU - PDX
2 stops22h 17mMultiple Airlines
Deal found 12/16$1,380
This Cheapflightsfares deal was found by Cheapflights users on 12/16. 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.
mié. 12/171:14 pmPDX - BRU
2 stops24h 26mLufthansa
mar. 12/2310:10 amBRU - PDX
1 stop21h 30mLufthansa
Deal found 12/16$1,489
This KLM deal was found by Cheapflights users on 12/16. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/177:05 amPDX - BRU
1 stop16h 55mKLM
mar. 12/232:45 pmBRU - PDX
1 stop29h 40mKLM
Deal found 12/16$1,597
This United Airlines deal was found by Cheapflights users on 12/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/206:40 pmPDX - BRU
2 stops37h 50mUnited Airlines
dom. 1/1810:00 amBRU - PDX
2 stops41h 56mUnited Airlines
Deal found 12/16$1,659
This United Airlines deal was found by Cheapflights users on 12/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/1411:59 pmPDX - BRU
2 stops28h 16mUnited Airlines
dom. 12/2110:10 amBRU - PDX
2 stops21h 49mUnited Airlines
Deal found 12/14$1,783
This SmartFares deal was found by Cheapflights users on 12/16. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/197:10 amPDX - BRU
1 stop16h 45mLufthansa
vie. 1/1610:10 amBRU - PDX
1 stop17h 46mLufthansa
Deal found 12/16$1,799

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 diciembre 16, 2025.

Round-trip from

$382
(Gotogate)

One-way from

$327
(Gurufare)

Popular in

June

Cheapest in

October

Average price

$790
From Washington to Brussels
Search Deals
One-way flight from Washington to Brussels
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($97 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 diciembre 16, 2025.
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

lun. 1/12

7:00 am-8:55 am

1 stop16h 55m

Brussels Bruxelles-National

dom. 1/25

10:10 am-6:56 pm

1 stop17h 46m

$454

SeattleBrussels

SEA - BRU

SEABRU

Seattle/Tacoma Intl

vie. 1/30

10:05 am-8:55 am

2 stops37h 50m

Brussels Bruxelles-National

vie. 2/6

10:00 am-8:57 pm

2 stops43h 57m

$480

SeattleBrussels

SEA - BRU

SEABRU

Seattle/Tacoma Intl

vie. 2/6

8:40 am-1:15 pm

3 stops19h 35m

Brussels Bruxelles-National

vie. 2/20

10:00 am-8:56 pm

2 stops43h 56m

$485

SeattleBrussels

SEA - BRU

SEABRU

Seattle/Tacoma Intl

mar. 2/10

7:00 am-1:15 pm

2 stops21h 15m

Brussels Bruxelles-National

mar. 3/10

10:00 am-11:49 am

2 stops33h 49m

$485

PortlandBrussels

PDX - BRU

PDXBRU

Portland

lun. 1/12

11:59 pm-1:15 pm

2 stops28h 16m

Brussels Bruxelles-National

dom. 1/25

10:00 am-6:56 pm

2 stops41h 56m

$485

PortlandBrussels

PDX - BRU

PDXBRU

Portland

mié. 3/4

10:56 am-8:55 am

1 stop12h 59m

Brussels Bruxelles-National

mar. 3/10

10:10 am-7:14 pm

1 stop17h 04m

$487

PortlandBrussels

PDX - BRU

PDXBRU

Portland

dom. 2/15

7:00 am-8:55 am

1 stop16h 55m

Brussels Bruxelles-National

sáb. 2/28

10:10 am-10:56 pm

1 stop21h 46m

$487

PortlandBrussels

PDX - BRU

PDXBRU

Portland

mié. 3/4

10:56 am-8:55 am

1 stop12h 59m

Brussels Bruxelles-National

mar. 3/10

10:00 am-11:00 pm

3 stops45h 00m

$488

PortlandBrussels

PDX - BRU

PDXBRU

Portland

lun. 1/12

9:50 am-7:50 am

2 stops37h 00m

Brussels Bruxelles-National

lun. 1/19

10:00 am-9:15 am

2 stops56h 15m

$491

PortlandBrussels

PDX - BRU

PDXBRU

Portland

mié. 1/14

9:50 am-8:00 pm

2 stops25h 10m

Brussels Bruxelles-National

dom. 1/18

10:00 am-2:40 pm

2 stops37h 40m

$493

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 57 results
1
2
3
...
6

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 $380). Flying from State of Washington to Brussels in July is currently the most expensive (average of $507). 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.

What is the cheapest time of day to fly from WA to BRU?

Find hourly flight availability from Washington to Brussels. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated diciembre 16, 2025.

A simple way to save on the total cost of your ticket is to fly from State of Washington to Brussels in the afternoon. If you’re flexible enough to do this you can expect to save up to 12% on your trip compared to booking a flight at noon.

What is the cheapest day to fly from State of Washington to Brussels?

Use this chart to determine the cheapest time to fly round-trip from Washington to Brussels. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their State of Washington to Brussels flight should consider departing on Tuesday mornings when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 16h 55m. Fly via Lufthansa 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 ($348), and KLM ($412).

  • 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 $380). Flying from State of Washington to Brussels in July is currently the most expensive (average of $507). 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
LaGuardia to Bruxelles-National flights
Dulles Intl to Bruxelles-National flights
O'Hare Intl to Bruxelles-National flights
Boston to Bruxelles-National flights
Seattle to Bruxelles-National flights
Hobby to Bruxelles-National flights
Reagan-National to Bruxelles-National flights
Dallas/Fort Worth to Bruxelles-National flights
John F Kennedy Intl to Charleroi Brussels flights
Atlanta to Bruxelles-National flights
Baltimore to Bruxelles-National flights
Los Angeles to Bruxelles-National flights
Newark to Charleroi Brussels flights
San Francisco to Bruxelles-National flights
Miami to Bruxelles-National flights
Orlando to Bruxelles-National flights
Raleigh to Bruxelles-National flights
Philadelphia to Bruxelles-National flights
George Bush Intcntl to Bruxelles-National flights
Minneapolis to Bruxelles-National flights
Boston to Charleroi Brussels flights
Cincinnati to Bruxelles-National flights
Midway to Bruxelles-National flights
Love Field to Bruxelles-National flights
Denver to Bruxelles-National flights
Tampa to Bruxelles-National flights
Cleveland to Bruxelles-National flights
Fort Lauderdale to Bruxelles-National flights
Dulles Intl to Charleroi Brussels flights
Portland to Bruxelles-National flights
Charlotte to Bruxelles-National flights
Ontario to Bruxelles-National flights
Richmond to Bruxelles-National flights
Austin to Bruxelles-National flights
O'Hare Intl to Charleroi Brussels flights
Santa Ana to Bruxelles-National flights
West Palm Beach to Bruxelles-National flights
St. Louis to Bruxelles-National flights
Columbus to Bruxelles-National flights
Madison to Bruxelles-National flights
Los Angeles to Charleroi Brussels flights
Sky Harbor Intl to Bruxelles-National flights
Indianapolis to Bruxelles-National flights
Miami to Charleroi Brussels flights
San Diego to Bruxelles-National flights
San Jose to Bruxelles-National flights
Kansas City to Bruxelles-National flights
Detroit to Bruxelles-National flights

Top 10 airlines flying from Washington to Brussels

Discover the top 10 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 diciembre 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$387Average$492FlexibilityNo cancel feeOn-time76%
DeltaCheapest$482Average$714FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$486Average$753FlexibilityNo cancel feeOn-time70%
Virgin AtlanticCheapest$488Average$491FlexibilityNo cancel feeOn-time72%
LufthansaCheapest$501Average$709FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$502Average$736FlexibilityNo cancel feeOn-time69%
Air FranceCheapest$506Average$581FlexibilityNo cancel feeOn-time77%
KLMCheapest$511Average$681FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$518Average$808FlexibilityNo cancel feeOn-time67%
Aer LingusCheapest$532Average$556FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.