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$582+ Cheap flights from Bruxelles-National (BRU) to Seattle (SEA)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/23. Fares are subject to change and may not be available on all flights or dates of travel.
BRU — SEA
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
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 October 30, 2025.

This lastminute.com deal was found by Cheapflights users on 10/30. 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.
Sun 11/2310:15 amBRU - SEA
1 stop17h 05mAer Lingus
Mon 12/88:05 pmSEA - BRU
1 stop13h 10mAer Lingus
Deal found 10/30$582
This Mytrip deal was found by Cheapflights users on 10/28. 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.
Sun 11/233:10 pmBRU - SEA
3 stops34h 50mMultiple Airlines
Mon 12/82:35 pmSEA - BRU
2 stops19h 05mMultiple Airlines
Deal found 10/28$680
This Expedia deal was found by Cheapflights users on 10/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2311:55 amBRU - SEA
1 stop17h 59mLufthansa
Mon 12/87:00 amSEA - BRU
1 stop16h 55mLufthansa
Deal found 10/28$709
This Kiwi.com deal was found by Cheapflights users on 10/30. 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 12/210:00 amBRU - SEA
2 stops18h 16mLufthansa
Sun 12/73:10 pmSEA - BRU
1 stop17h 05mLufthansa
Deal found 10/30$747

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 October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$582
(lastminute.com)

Popular in

October

Cheapest in

December

Average price

$883
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
Highest demand for flights based on searches. 10% potential increase in price ($80 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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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 October 30, 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

Sun 11/23

3:10 pm-5:00 pm

3 stops34h 50m

Seattle/Tacoma Intl

Mon 12/8

2:35 pm-6:40 pm

2 stops19h 05m

$681

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Sun 11/23

9:35 am-7:16 pm

2 stops18h 41m

Seattle/Tacoma Intl

Mon 12/8

2:00 pm-1:35 pm

1 stop14h 35m

$753

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Tue 12/2

11:55 am-8:54 pm

1 stop17h 59m

Seattle/Tacoma Intl

Sun 12/7

3:10 pm-4:15 pm

1 stop16h 05m

$767

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Tue 12/16

7:00 am-12:10 pm

1 stop14h 10m

Seattle/Tacoma Intl

Wed 12/31

10:52 am-1:15 pm

2 stops17h 23m

$771

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Tue 12/2

2:25 pm-12:50 am

2 stops19h 25m

Seattle/Tacoma Intl

Sun 12/7

8:40 am-1:15 pm

3 stops19h 35m

$777

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Sun 11/23

9:30 am-10:45 pm

2 stops22h 15m

Seattle/Tacoma Intl

Mon 12/8

12:35 pm-1:15 pm

2 stops15h 40m

$778

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Fri 11/28

9:30 am-8:51 pm

2 stops20h 21m

Seattle/Tacoma Intl

Fri 12/5

8:40 am-1:15 pm

3 stops19h 35m

$779

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Sat 11/22

7:00 am-6:34 pm

2 stops20h 34m

Seattle/Tacoma Intl

Sat 11/29

8:36 am-1:15 pm

2 stops19h 39m

$779

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Sun 1/4

9:10 pm-10:14 am

3 stops46h 04m

$747

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Wed 12/31

9:10 am-6:20 pm

1 stop18h 10m

$866

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

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 October.
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 October 24, 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 $521). Flying from Brussels Bruxelles-National Airport to Seattle in November is currently the most expensive (average of $670). 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 October 30, 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.

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 October 30, 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
7,998 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Mary,Oct 2025

AMS - PDX

It's specail being able to fly non-stop from Amsterdam all the way home to Portland, Oregon!
Delta
7.9
Good
7,998 reviews
Delta
7.9
Good
7,998 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Mary,Oct 2025

AMS - PDX

It's specail being able to fly non-stop from Amsterdam all the way home to Portland, Oregon!
KLM
7.7
Good
1,406 reviews
Delta
7.9
Good
7,998 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Mary,Oct 2025

AMS - PDX

It's specail being able to fly non-stop from Amsterdam all the way home to Portland, Oregon!
Icelandair
7.1
Good
562 reviews
Delta
7.9
Good
7,998 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Mary,Oct 2025

AMS - PDX

It's specail being able to fly non-stop from Amsterdam all the way home to Portland, Oregon!
Lufthansa
6.8
Okay
7,541 reviews
Delta
7.9
Good
7,998 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Mary,Oct 2025

AMS - PDX

It's specail being able to fly non-stop from Amsterdam all the way home to Portland, Oregon!
British Airways
6.7
Okay
7,487 reviews
Delta
7.9
Good
7,998 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Mary,Oct 2025

AMS - PDX

It's specail being able to fly non-stop from Amsterdam all the way home to Portland, Oregon!

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 14h 10m. 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?

    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 $521). Flying from Brussels Bruxelles-National Airport to Seattle in November is currently the most expensive (average of $670). 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?

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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 October 30, 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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