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$409+ 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 2/1. Fares are subject to change and may not be available on all flights or dates of travel.
BRU — SEA
Dec 21 — Dec 281
Sun 12/21
Sun 12/28
1 adult, Economy
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Brussels Bruxelles-National to Seattle/Tacoma Intl are usually found in December or January, booked 31 days in advance, depart on a Sunday or Friday and return on a Tuesday

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 November 21, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/19. 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.
Sun 12/1411:55 amBRU - SEA
1 stop17h 59mLufthansa
Thu 1/110:05 amSEA - BRU
2 stops22h 25mLufthansa
Deal found 11/19$756
This Gotogate deal was found by Cheapflights users on 11/19. 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.
Fri 12/57:00 amBRU - SEA
2 stops21h 16mAir Canada
Tue 12/98:10 amSEA - BRU
2 stops20h 05mAir Canada
Deal found 11/19$765
This Air Canada deal was found by Cheapflights users on 11/19. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/207:00 amBRU - SEA
2 stops21h 16mMultiple Airlines
Tue 2/33:40 pmSEA - BRU
2 stops19h 20mMultiple Airlines
Deal found 11/19$768
This United Airlines deal was found by Cheapflights users on 11/19. 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.
Thu 12/117:00 amBRU - SEA
1 stop14h 10mUnited Airlines
Wed 12/318:57 amSEA - BRU
2 stops19h 18mUnited Airlines
Deal found 11/19$769
This United Airlines deal was found by Cheapflights users on 11/19. 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.
Thu 12/117:00 amBRU - SEA
1 stop14h 10mUnited Airlines
Mon 12/2911:59 pmSEA - BRU
1 stop23h 56mUnited Airlines
Deal found 11/19$770
This United Airlines deal was found by Cheapflights users on 11/20. 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.
Thu 12/47:00 amBRU - SEA
2 stops24h 28mUnited Airlines
Sat 12/2011:59 pmSEA - BRU
1 stop23h 56mUnited Airlines
Deal found 11/20$773
This United Airlines deal was found by Cheapflights users on 11/19. 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.
Thu 12/119:00 amBRU - SEA
2 stops22h 38mUnited Airlines
Sun 1/411:59 pmSEA - BRU
1 stop23h 56mUnited Airlines
Deal found 11/19$775
This Flighttix deal was found by Cheapflights users on 11/19. 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.
Mon 12/1510:30 amBRU - SEA
2 stops20h 58mLufthansa
Mon 12/297:00 amSEA - BRU
1 stop16h 55mLufthansa
Deal found 11/19$776
This Flighttix deal was found by Cheapflights users on 11/19. 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.
Fri 12/511:55 amBRU - SEA
1 stop17h 59mMultiple Airlines
Tue 12/97:00 amSEA - BRU
2 stops18h 10mMultiple Airlines
Deal found 11/19$778
This Air Canada deal was found by Cheapflights users on 11/19. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/410:00 amBRU - SEA
2 stops32h 31mAir Canada
Sat 12/208:00 pmSEA - BRU
2 stops26h 50mAir Canada
Deal found 11/19$779

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 November 21, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$638
(FlightHub)

One-way from

$409
(Kiwi.com)

Popular in

November

Cheapest in

December

Average price

$913
Provider with most accurate pricing for Brussels Bruxelles-National-Seattle/Tacoma Intl flight deals.
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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. 5% potential increase in price ($42 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

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 November 21, 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

Fri 5/8

7:10 pm-12:22 am

2 stops38h 12m

Seattle/Tacoma Intl

Sat 5/30

3:55 pm-9:40 am

1 stop32h 45m

$638

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Thu 5/7

3:15 pm-12:22 am

2 stops42h 07m

Seattle/Tacoma Intl

Fri 5/29

3:55 pm-7:50 pm

1 stop18h 55m

$655

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Sat 5/9

8:30 pm-10:17 pm

2 stops34h 47m

Seattle/Tacoma Intl

Sat 5/30

3:55 pm-9:40 am

1 stop32h 45m

$678

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Thu 1/15

12:50 pm-5:00 pm

1 stop13h 10m

Seattle/Tacoma Intl

Thu 1/29

2:35 pm-11:55 am

1 stop12h 20m

$720

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Sat 5/9

9:30 am-12:22 am

2 stops23h 52m

Seattle/Tacoma Intl

Sat 5/30

3:55 pm-6:20 pm

2 stops17h 25m

$727

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Fri 4/3

3:15 pm-10:05 pm

2 stops39h 50m

Seattle/Tacoma Intl

Tue 4/14

12:00 pm-6:30 pm

2 stops21h 30m

$737

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Fri 4/3

3:15 pm-10:05 pm

2 stops39h 50m

Seattle/Tacoma Intl

Mon 4/13

7:20 am-7:50 pm

2 stops27h 30m

$737

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Sun 2/1

9:55 pm-10:34 am

2 stops45h 39m

$409

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Mon 1/12

8:45 pm-5:45 pm

2 stops30h 00m

$494

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Sun 2/1

5:30 pm-4:55 pm

1 stop32h 25m

$530

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/20

Showing 1-10 of 15 results
1
2

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 November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Brussels Bruxelles-National Airport-Seattle flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 November 14, 2025.

The best time to book flights from Brussels Bruxelles-National Airport to Seattle is 31 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, September is the cheapest month in which you can book a flight from Brussels Bruxelles-National Airport to Seattle (average of $520). Flying from Brussels Bruxelles-National Airport to Seattle in November is currently the most expensive (average of $737). 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 November 21, 2025.

It’s optimal to fly from Brussels Bruxelles-National Airport to Seattle in the evening. By choosing this option you can save up to 43% on the cost of your flight, compared to a flight at noon.

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 November 21, 2025.
Read reviews from past customers who have flown Delta, KLM, and Icelandair from Brussels Bruxelles-National Airport to Seattle. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,003 reviews

Boarding

8.1

Entertainment

7.9

Food

7.3

Comfort

7.9

Crew

8.5

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,003 reviews
Delta
7.9
Good
8,003 reviews

Boarding

8.1

Entertainment

7.9

Food

7.3

Comfort

7.9

Crew

8.5

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
KLM
7.7
Good
1,419 reviews
Delta
7.9
Good
8,003 reviews

Boarding

8.1

Entertainment

7.9

Food

7.3

Comfort

7.9

Crew

8.5

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Icelandair
7.0
Good
581 reviews
Delta
7.9
Good
8,003 reviews

Boarding

8.1

Entertainment

7.9

Food

7.3

Comfort

7.9

Crew

8.5

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Lufthansa
6.8
Okay
7,579 reviews
Delta
7.9
Good
8,003 reviews

Boarding

8.1

Entertainment

7.9

Food

7.3

Comfort

7.9

Crew

8.5

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
British Airways
6.7
Okay
7,534 reviews
Delta
7.9
Good
8,003 reviews

Boarding

8.1

Entertainment

7.9

Food

7.3

Comfort

7.9

Crew

8.5

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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.

  • How long is the flight from Brussels Bruxelles-National Airport to Seattle?

    Departing from Brussels Bruxelles-National Airport to Seattle will take you 38h 12m. There are 4941 mi between Brussels Bruxelles-National Airport and Seattle.

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

    Aer Lingus, at $524, was found to be the cheapest airline from Brussels Bruxelles-National Airport to Seattle.Alternate airlines to your destination round-trip include United Airlines and Icelandair. You may be able to fly from Brussels Bruxelles-National Airport to Seattle for 26% less than the average price by searching for these airlines.

  • 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, September is the cheapest month in which you can book a flight from Brussels Bruxelles-National Airport to Seattle (average of $520). Flying from Brussels Bruxelles-National Airport to Seattle in November is currently the most expensive (average of $737). 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 Seattle?

Book flights to Seattle if you plan to visit one of these locations
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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 November 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$524Average$700FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$584Average$723FlexibilityNo cancel feeOn-time69%
IcelandairCheapest$586Average$626FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$592Average$715FlexibilityNo cancel feeOn-time70%
KLMCheapest$605Average$684FlexibilityNo cancel feeOn-time75%
DeltaCheapest$616Average$764FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$651Average$723FlexibilityNo cancel feeOn-time76%
LufthansaCheapest$674Average$871FlexibilityNo cancel feeOn-time76%

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