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$411+ 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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
BRU — SEA
Apr 9 — Apr 161
Thu 4/9
Thu 4/16
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 March 10, 2026.

This Kiwi.com deal was found by Cheapflights users on 3/8. 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.
Thu 4/3010:20 am
BRU
-
SEA
1 stop15h 50m
Aer Lingus
Wed 5/137:10 pm
SEA
-
BRU
1 stop16h 35m
Aer Lingus
Deal found 3/8$598
This Kiwi.com deal was found by Cheapflights users on 3/7. 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.
Tue 4/2110:00 am
BRU
-
SEA
1 stop16h 10m
Multiple Airlines
Tue 4/287:10 pm
SEA
-
BRU
1 stop13h 15m
Multiple Airlines
Deal found 3/7$633
This Kiwi.com deal was found by Cheapflights users on 3/8. 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.
Thu 4/307:25 pm
BRU
-
SEA
2 stops47h 15m
Multiple Airlines
Wed 5/137:00 pm
SEA
-
BRU
1 stop32h 55m
Multiple Airlines
Deal found 3/8$650
This FlightHub deal was found by Cheapflights users on 3/6. 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 3/6$660
This Mytrip deal was found by Cheapflights users on 3/8. 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.
Wed 4/2210:30 am
BRU
-
SEA
1 stop15h 40m
Multiple Airlines
Wed 4/297:10 pm
SEA
-
BRU
1 stop13h 45m
Multiple Airlines
Deal found 3/8$684
This Scandinavian Airlines deal was found by Cheapflights users on 3/9. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/37:10 pm
BRU
-
SEA
1 stop27h 35m
Scandinavian Airlines
Sun 9/203:55 pm
SEA
-
BRU
1 stop32h 45m
Scandinavian Airlines
Deal found 3/9$688

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 March 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$598
(Kiwi.com)

One-way from

$411
(Kiwi.com)

Popular in

January

Cheapest in

December

Average price

$823
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. 11% potential increase in price ($106 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($40 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
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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 March 10, 2026.
Use the filters below to find and compare flights from Brussels Bruxelles-National Airport to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Sat 5/23

8:30 pm-1:45 pm

1 stop26h 15m

Seattle/Tacoma Intl

Fri 5/29

3:55 pm-9:40 am

1 stop32h 45m

$720

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Sat 9/5

3:15 pm-1:45 pm

1 stop31h 30m

Seattle/Tacoma Intl

Sat 9/19

3:55 pm-10:40 am

2 stops33h 45m

$747

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Sun 8/9

10:20 am-1:45 pm

1 stop12h 25m

Seattle/Tacoma Intl

Sun 8/30

3:55 pm-9:40 am

1 stop32h 45m

$799

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Sat 5/23

6:20 am-11:42 am

1 stop14h 22m

Seattle/Tacoma Intl

Fri 5/29

7:15 am-9:40 am

2 stops17h 25m

$806

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Tue 6/2

1:50 pm-8:40 pm

1 stop15h 50m

Seattle/Tacoma Intl

Thu 6/18

11:25 pm-12:55 pm

1 stop28h 30m

$814

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Tue 5/5

7:00 am-12:20 pm

1 stop14h 20m

Seattle/Tacoma Intl

Tue 6/16

11:20 pm-7:15 am

1 stop22h 55m

$828

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Mon 5/25

7:00 am-2:20 pm

2 stops16h 20m

Seattle/Tacoma Intl

Mon 6/15

7:00 am-9:00 am

1 stop17h 00m

$830
Quickest round-trip

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Tue 6/2

8:30 am-12:20 pm

1 stop12h 50m

Seattle/Tacoma Intl

Thu 6/18

10:52 am-9:00 am

1 stop13h 08m

$830

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Thu 4/30

6:20 am-4:30 pm

1 stop19h 10m

Seattle/Tacoma Intl

Wed 5/13

1:45 pm-2:40 pm

1 stop15h 55m

$831

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Fri 8/28

8:30 am-11:55 am

1 stop12h 25m

Seattle/Tacoma Intl

Mon 8/31

7:30 am-7:45 am

1 stop15h 15m

$831

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/10

Showing 1-10 of 19 resultsSorted by cheapest first
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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*2 stars
AranGrantPrice Accuracy2 starsTrust Score*2 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 March 6, 2026.

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 $519). 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.

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 March 10, 2026.
Read reviews from past customers who have flown KLM,United Airlines, andIcelandair 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.
KLM
7.8
Good
1,468 reviews

Boarding

7.8

Entertainment

7.1

Overall

7.8

Crew

8.4

Comfort

7.6

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
KLM
7.8
Good
1,468 reviews
KLM
7.8
Good
1,468 reviews

Boarding

7.8

Entertainment

7.1

Overall

7.8

Crew

8.4

Comfort

7.6

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
United Airlines
7.4
Good
9,409 reviews
KLM
7.8
Good
1,468 reviews

Boarding

7.8

Entertainment

7.1

Overall

7.8

Crew

8.4

Comfort

7.6

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
Icelandair
7.1
Good
619 reviews
KLM
7.8
Good
1,468 reviews

Boarding

7.8

Entertainment

7.1

Overall

7.8

Crew

8.4

Comfort

7.6

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
Lufthansa
6.8
Okay
7,840 reviews
KLM
7.8
Good
1,468 reviews

Boarding

7.8

Entertainment

7.1

Overall

7.8

Crew

8.4

Comfort

7.6

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
British Airways
6.7
Okay
7,781 reviews
KLM
7.8
Good
1,468 reviews

Boarding

7.8

Entertainment

7.1

Overall

7.8

Crew

8.4

Comfort

7.6

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas

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.

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

    Departing from Brussels Bruxelles-National Airport to Seattle will take you 14h 22m. There are 4941 mi between Brussels Bruxelles-National Airport and Seattle. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 British Airways 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.

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

    For one-way options, check prices for Icelandair. According to our data, you can fly for as low as $533. Users have also found prices from $545 and $582 on Aer Lingus 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 $519). 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
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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 March 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$584Average$782FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$592Average$802FlexibilityNo cancel feeOn-time70%
IcelandairCheapest$604Average$626FlexibilityNo cancel feeOn-time76%
KLMCheapest$673Average$820FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$761Average$881FlexibilityNo cancel feeOn-time76%
DeltaCheapest$787Average$1,199FlexibilityNo cancel feeOn-timeN/A

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