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$429+ 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 2/10. Fares are subject to change and may not be available on all flights or dates of travel.
BRU — SEA
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap 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 January 29, 2026.

This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/29:40 am
BRU
-
SEA
1 stop17h 40m
Multiple Airlines
Mon 3/99:05 pm
SEA
-
BRU
1 stop12h 45m
Multiple Airlines
Deal found 1/27$582
This Finnair 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/167:55 pm
BRU
-
SEA
1 stop24h 40m
Multiple Airlines
Tue 7/78:20 pm
SEA
-
BRU
1 stop15h 05m
Multiple Airlines
Deal found 1/27$588
This lastminute.com deal was found by Cheapflights users on 1/28. 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.
Fri 8/283:15 pm
BRU
-
SEA
1 stop31h 30m
Scandinavian Airlines
Sat 9/123:55 pm
SEA
-
BRU
1 stop32h 45m
Scandinavian Airlines
Deal found 1/28$589
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/123:15 pm
BRU
-
SEA
1 stop31h 30m
Scandinavian Airlines
Sat 9/193:55 pm
SEA
-
BRU
1 stop32h 45m
Scandinavian Airlines
Deal found 1/27$594
This Booking.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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/148:40 pm
BRU
-
SEA
1 stop23h 55m
Multiple Airlines
Thu 7/21:35 pm
SEA
-
BRU
1 stop22h 05m
Multiple Airlines
Deal found 1/27$602
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/49:15 pm
BRU
-
SEA
1 stop23h 20m
Multiple Airlines
Tue 6/231:35 pm
SEA
-
BRU
1 stop21h 50m
Multiple Airlines
Deal found 1/27$605
This Booking.com deal was found by Cheapflights users on 1/28. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/59:30 pm
BRU
-
SEA
1 stop23h 05m
Multiple Airlines
Mon 6/151:35 pm
SEA
-
BRU
1 stop20h 35m
Multiple Airlines
Deal found 1/28$606
This Finnair 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/259:15 pm
BRU
-
SEA
1 stop23h 20m
Multiple Airlines
Fri 7/108:20 pm
SEA
-
BRU
1 stop15h 50m
Multiple Airlines
Deal found 1/27$612

Find 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 January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$582
(Mytrip)

One-way from

$429
(Kiwi.com)

Popular in

November

Cheapest in

December

Average price

$679
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.
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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. 3% potential increase in price ($25 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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 January 29, 2026.
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

Thu 6/25

9:15 pm-11:35 am

1 stop23h 20m

Seattle/Tacoma Intl

Fri 7/10

8:20 pm-9:10 pm

1 stop15h 50m

$612

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Sun 6/14

8:40 pm-11:35 am

1 stop23h 55m

Seattle/Tacoma Intl

Thu 7/2

1:35 pm-6:20 pm

2 stops19h 45m

$660

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Fri 5/8

11:20 am-10:26 pm

2 stops20h 06m

Seattle/Tacoma Intl

Sat 5/30

1:35 pm-2:20 pm

1 stop15h 45m

$693

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Wed 5/6

1:50 pm-8:40 pm

1 stop15h 50m

Seattle/Tacoma Intl

Thu 5/28

3:40 pm-12:55 pm

1 stop12h 15m

$699

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Tue 6/2

11:20 am-11:35 am

2 stops33h 15m

Seattle/Tacoma Intl

Thu 6/18

1:35 pm-9:20 am

2 stops34h 45m

$703

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Wed 5/6

8:05 am-4:30 pm

1 stop17h 25m

Seattle/Tacoma Intl

Thu 5/28

7:30 am-9:40 am

2 stops17h 10m

$706

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Sun 4/5

6:20 am-11:45 am

1 stop14h 25m

Seattle/Tacoma Intl

Sat 4/11

7:25 am-9:50 am

2 stops17h 25m

$706

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Tue 5/5

11:20 am-4:00 pm

1 stop13h 40m

Seattle/Tacoma Intl

Tue 6/16

1:35 pm-9:20 am

2 stops34h 45m

$706

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Sat 5/9

6:20 am-11:42 am

1 stop14h 22m

Seattle/Tacoma Intl

Sat 5/30

7:30 am-2:40 pm

2 stops22h 10m

$706

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Thu 5/7

6:20 am-11:42 am

1 stop14h 22m

Seattle/Tacoma Intl

Fri 5/29

9:30 am-2:40 pm

2 stops20h 10m

$706

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 19 results
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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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Brussels Bruxelles-National Airport-Seattle flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 January 23, 2026.

The best time to book flights from Brussels Bruxelles-National Airport to Seattle is 73 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 $517). Flying from Brussels Bruxelles-National Airport to Seattle in November is currently the most expensive (average of $743). 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 Brussels Bruxelles-National Airport to Seattle?

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 January 29, 2026.
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
8,126 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.8

Overall

7.9

Food

7.2

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
8,126 reviews
Delta
7.9
Good
8,126 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.8

Overall

7.9

Food

7.2

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
1,443 reviews
Delta
7.9
Good
8,126 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.8

Overall

7.9

Food

7.2

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
7.1
Good
606 reviews
Delta
7.9
Good
8,126 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.8

Overall

7.9

Food

7.2

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
7,756 reviews
Delta
7.9
Good
8,126 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.8

Overall

7.9

Food

7.2

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
7,705 reviews
Delta
7.9
Good
8,126 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.8

Overall

7.9

Food

7.2

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 6 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?

    United Airlines, at $584, was found to be the cheapest airline from Brussels Bruxelles-National Airport to Seattle.Alternate airlines to your destination round-trip include Icelandair and British Airways. You may be able to fly from Brussels Bruxelles-National Airport to Seattle for 18% 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 $529. Users have also found prices from $533 and $582 on Icelandair and Lufthansa, 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, September is the cheapest month in which you can book a flight from Brussels Bruxelles-National Airport to Seattle (average of $517). Flying from Brussels Bruxelles-National Airport to Seattle in November is currently the most expensive (average of $743). 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
Tacoma
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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 6 airlines flying from Bruxelles-National to Seattle

Discover the top 6 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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$584Average$744FlexibilityNo cancel feeOn-time69%
IcelandairCheapest$586Average$626FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$592Average$679FlexibilityNo cancel feeOn-time70%
KLMCheapest$605Average$686FlexibilityNo cancel feeOn-time75%
DeltaCheapest$616Average$931FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$687Average$881FlexibilityNo cancel feeOn-time76%

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