HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Seattle

$622+ Cheap flights from Bruxelles-National (BRU) to Seattle (SEA)

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 6/21. Fares are subject to change and may not be available on all flights or dates of travel.
BRU — SEA
May 4 — May 111
Sun 5/4
Sun 5/11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Bruxelles-National to Seattle 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.

Cheapflights Tip: The best prices from Brussels Bruxelles-National to Seattle/Tacoma Intl are usually found in January or March, booked 41 days in advance, depart on a Sunday or Friday and return on a Tuesday

Cheap flight deals from Bruxelles-National to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Bruxelles-National (BRU) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 29, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$635
(lastminute.com)

One-way from

$622
(Kiwi.com)

Popular in

July

Cheapest in

January

Average price

$764
Provider with most accurate pricing for Brussels Bruxelles-National-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Brussels Bruxelles-National-Seattle/Tacoma Intl flights.
Search Deals
From Brussels Bruxelles-National to Seattle/Tacoma Intl
Search Deals
One-way flight from Brussels Bruxelles-National to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($55 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

Find flight deals from Bruxelles-National to Seattle

Cheapest flights from Bruxelles-National to Seattle
Explore the most affordable flight options available from Bruxelles-National to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2025.

This lastminute.com deal was found by Cheapflights users on 4/28. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/1610:20 amBRU - SEA
1 stop16h 30mAer Lingus
Sun 6/297:35 pmSEA - BRU
1 stop16h 05mAer Lingus
Deal found 4/28$635
This Mytrip deal was found by Cheapflights users on 4/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/210:20 amBRU - SEA
1 stop12h 30mScandinavian Airlines
Mon 6/164:00 pmSEA - BRU
1 stop14h 20mScandinavian Airlines
Deal found 4/28$644
This Gotogate deal was found by Cheapflights users on 4/28. 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.
Wed 5/141:50 pmBRU - SEA
1 stop15h 50mIcelandair
Sun 5/183:45 pmSEA - BRU
1 stop12h 05mIcelandair
Deal found 4/28$652
This American Airlines deal was found by Cheapflights users on 4/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/153:00 pmBRU - SEA
1 stop29h 10mAmerican Airlines
Sat 10/48:20 pmSEA - BRU
1 stop28h 35mAmerican Airlines
Deal found 4/28$659
This British Airways deal was found by Cheapflights users on 4/28. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/109:10 pmBRU - SEA
1 stop23h 25mBritish Airways
Wed 9/241:30 pmSEA - BRU
1 stop21h 55mBritish Airways
Deal found 4/28$661
This Delta deal was found by Cheapflights users on 4/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/148:00 amBRU - SEA
2 stops21h 19mDelta
Sun 5/187:10 amSEA - BRU
2 stops22h 25mDelta
Deal found 4/28$671
This Virgin Atlantic deal was found by Cheapflights users on 4/28. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/510:45 amBRU - SEA
2 stops22h 04mVirgin Atlantic
Thu 6/195:30 amSEA - BRU
2 stops18h 10mVirgin Atlantic
Deal found 4/28$695
This Gotogate deal was found by Cheapflights users on 4/28. 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.
Thu 6/198:30 amBRU - SEA
2 stops21h 11mAir Canada
Sat 7/57:20 amSEA - BRU
2 stops17h 25mAir Canada
Deal found 4/28$710
This Gotogate deal was found by Cheapflights users on 4/28. 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.
Thu 6/1910:30 amBRU - SEA
2 stops19h 11mMultiple Airlines
Sat 7/57:20 amSEA - BRU
2 stops20h 55mMultiple Airlines
Deal found 4/28$718
This Lufthansa deal was found by Cheapflights users on 4/28. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/1712:00 pmBRU - SEA
1 stop17h 41mLufthansa
Wed 8/276:50 pmSEA - BRU
1 stop16h 00mLufthansa
Deal found 4/28$727
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Tue 8/512:00 pmBRU - SEA
1 stop21h 56mUnited Airlines
Mon 8/1111:20 pmSEA - BRU
1 stop22h 55mUnited Airlines
Deal found 4/28$746
This Flighttix deal was found by Cheapflights users on 4/28. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/36:10 amBRU - SEA
1 stop14h 25mKLM
Sat 8/95:40 pmSEA - BRU
1 stop11h 55mKLM
Deal found 4/28$847

Cheapflights Fare Finder

Customize your flight search to find flights from Bruxelles-National to Seattle 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 April 29, 2025.
Use the filters below to find and compare flights from Brussels Bruxelles-National Airport to Seattle that are best for you.

Fly from

Bruxelles-National

Fly to

Seattle

Route

Depart

Return

Price

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Mon 6/16

10:20 am-5:50 pm

1 stop16h 30m

Seattle/Tacoma Intl

Sun 6/29

7:35 pm-8:40 pm

1 stop16h 05m

$635

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Mon 6/2

10:20 am-1:50 pm

1 stop12h 30m

Seattle/Tacoma Intl

Mon 6/16

4:00 pm-3:20 pm

1 stop14h 20m

$644

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Wed 5/14

1:50 pm-8:40 pm

1 stop15h 50m

Seattle/Tacoma Intl

Sun 5/18

3:45 pm-12:50 pm

1 stop12h 05m

$652

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Mon 9/15

3:00 pm-11:10 am

1 stop29h 10m

Seattle/Tacoma Intl

Sat 10/4

8:20 pm-9:55 am

1 stop28h 35m

$659

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Wed 9/10

9:10 pm-11:35 am

1 stop23h 25m

Seattle/Tacoma Intl

Wed 9/24

1:30 pm-8:25 pm

1 stop21h 55m

$661

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Wed 5/14

8:00 am-8:19 pm

2 stops21h 19m

Seattle/Tacoma Intl

Sun 5/18

7:10 am-2:35 pm

2 stops22h 25m

$671

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Thu 6/5

10:45 am-11:49 pm

2 stops22h 04m

Seattle/Tacoma Intl

Thu 6/19

5:30 am-8:40 am

2 stops18h 10m

$695

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Thu 6/19

8:30 am-8:41 pm

2 stops21h 11m

Seattle/Tacoma Intl

Sat 7/5

7:20 am-9:45 am

2 stops17h 25m

$710

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Thu 6/19

10:30 am-8:41 pm

2 stops19h 11m

Seattle/Tacoma Intl

Sat 7/5

7:20 am-1:15 pm

2 stops20h 55m

$718

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Tue 6/17

12:00 pm-8:41 pm

1 stop17h 41m

Seattle/Tacoma Intl

Wed 8/27

6:50 pm-7:50 pm

1 stop16h 00m

$727

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 26 results
1
2
3

Compare providers for flights from Bruxelles-National to Seattle

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Bruxelles-National to Seattle in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Brussels Bruxelles-National Airport-Seattle flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Brussels Bruxelles-National Airport-Seattle flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Brussels Bruxelles-National Airport-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Brussels Bruxelles-National Airport-Seattle flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Brussels Bruxelles-National Airport-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Bruxelles-National to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Bruxelles-National 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 Brussels Bruxelles-National Airport to Seattle

How far ahead should I book a flight from Brussels Bruxelles-National Airport to Seattle?

Use this chart to determine the optimal time to book a round-trip flight from Bruxelles-National to Seattle. Price data was last updated on April 25, 2025.

The best time to book flights from Brussels Bruxelles-National Airport to Seattle is 39 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Brussels Bruxelles-National Airport to Seattle?

Currently, January is the cheapest month in which you can book a flight from Brussels Bruxelles-National Airport to Seattle (average of $238). Flying from Brussels Bruxelles-National Airport to Seattle in July is currently the most expensive (average of $405). 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 BRU to SEA?

Find hourly flight availability from Bruxelles-National to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 29, 2025.

It’s optimal to fly from Brussels Bruxelles-National Airport to Seattle in the morning. By choosing this option you can save up to 16% on the cost of your flight, compared to a flight at noon.

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated April 29, 2025.
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,929 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
KLM
7.8
Good
1,334 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
airBaltic
7.8
Good
178 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Finnair
7.6
Good
1,275 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Austrian Airlines
7.6
Good
780 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Bruxelles-National to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Seattle from Brussels Bruxelles-National?

    Most people fly into Seattle/Tacoma Intl (SEA) if they book a flight to Seattle from Brussels Bruxelles-National. On average, Seattle/Tacoma Intl has 0 inbound flights from Brussels Bruxelles-National per day from 8 airlines. Seattle/Tacoma Intl is conveniently located just 11.4 mi from Seattle’s city center.

  • What are the cheapest airlines flying from Brussels Bruxelles-National Airport to Seattle round-trip?

    Aer Lingus, at $635, was found to be the cheapest airline from Brussels Bruxelles-National Airport to Seattle.Alternate airlines to your destination round-trip include Scandinavian Airlines and Icelandair. You may be able to fly from Brussels Bruxelles-National Airport to Seattle for 15% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Brussels Bruxelles-National Airport to Seattle one-way?

    For one-way options, check prices for Aer Lingus. According to our data, you can fly for as low as $627. Users have also found prices from $742 and $748 on British Airways and airBaltic, respectively.

  • Can I find deals for flights from Bruxelles-National to Seattle that include hotel bookings?

    Yes. In addition to deals on Bruxelles-National to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Bruxelles-National to Seattle?

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

  • Can I find deals for business class flights from Bruxelles-National to Seattle?

    Yes. Cheapflights offers flight deals from Bruxelles-National to Seattle 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 Brussels Bruxelles-National Airport to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Brussels Bruxelles-National Airport to Seattle (average of $238). Flying from Brussels Bruxelles-National Airport to Seattle in July is currently the most expensive (average of $405). 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

Traveling to a place near Brussels Bruxelles-National Airport?

Book flights to Brussels Bruxelles-National Airport if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Lakewood
Renton
Ocean Shores
Lacey
Leavenworth
Federal Way
Olympia
Shoreline
Cle Elum
Centralia
Kent
Lynnwood
Aberdeen
Shelton
Silverdale
Redmond
Issaquah

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 Bruxelles-National to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
Bruxelles-National to Portland flights

Top 8 airlines flying from Bruxelles-National to Seattle

Discover the top 8 airlines that operate flights from Bruxelles-National to Seattle. 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 April 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$524Average$700FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$586Average$662FlexibilityNo cancel feeOn-time76%
KLMCheapest$605Average$699FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$611Average$941FlexibilityNo cancel feeOn-time70%
DeltaCheapest$616Average$764FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$651Average$723FlexibilityNo cancel feeOn-time76%
LufthansaCheapest$670Average$780FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$694Average$847FlexibilityNo cancel feeOn-time69%

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.