$539 Cheap Flights from Brussels (BRU) to Seattle (SEA)

View $539 flight on Wed, Dec 2, 2026Opens in a new window

Popular airlines from Brussels Airport (BRU) to Seattle-Tacoma International Airport (SEA)

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Cheap Flights from Brussels to Seattle (BRU-SEA)

Prices were available within the past 7 days and start at $539 for one-way flights and $715 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Scandinavian Airlines
Fri, Aug 28 - Sun, Oct 4
BRU
Brussels
SEA
Seattle
$715 Roundtrip, found 3 days ago
$715
Roundtrip
found 3 days ago
Select Scandinavian Airlines flight, departing Fri, Aug 28 from Brussels to Seattle, returning Sun, Oct 4, priced at $715 found 3 days ago
Aer Lingus
Sun, May 17 - Tue, Jun 2
BRU
Brussels
SEA
Seattle
$723 Roundtrip, found 3 hours ago
$723
Roundtrip
found 3 hours ago
Select Aer Lingus flight, departing Sun, May 17 from Brussels to Seattle, returning Tue, Jun 2, priced at $723 found 3 hours ago
Aer Lingus
Sat, May 16 - Sun, May 31
BRU
Brussels
SEA
Seattle
$730 Roundtrip, found 1 day ago
$730
Roundtrip
found 1 day ago
Select Aer Lingus flight, departing Sat, May 16 from Brussels to Seattle, returning Sun, May 31, priced at $730 found 1 day ago
Scandinavian Airlines
Tue, Aug 25 - Sun, Oct 4
BRU
Brussels
SEA
Seattle
$792 Roundtrip, found 3 days ago
$792
Roundtrip
found 3 days ago
Select Scandinavian Airlines flight, departing Tue, Aug 25 from Brussels to Seattle, returning Sun, Oct 4, priced at $792 found 3 days ago
Scandinavian Airlines
Mon, Jun 8 - Tue, Sep 15
BRU
Brussels
SEA
Seattle
$804 Roundtrip, found 17 hours ago
$804
Roundtrip
found 17 hours ago
Select Scandinavian Airlines flight, departing Mon, Jun 8 from Brussels to Seattle, returning Tue, Sep 15, priced at $804 found 17 hours ago
Scandinavian Airlines
Mon, Jun 8 - Tue, Sep 15
BRU
Brussels
SEA
Seattle
$807 Roundtrip, found 17 hours ago
$807
Roundtrip
found 17 hours ago
Select Scandinavian Airlines flight, departing Mon, Jun 8 from Brussels to Seattle, returning Tue, Sep 15, priced at $807 found 17 hours ago
British Airways
Thu, May 28 - Mon, Jun 8
BRU
Brussels
SEA
Seattle
$852 Roundtrip, found 5 days ago
$852
Roundtrip
found 5 days ago
Select British Airways flight, departing Thu, May 28 from Brussels to Seattle, returning Mon, Jun 8, priced at $852 found 5 days ago
Lufthansa
Thu, May 28 - Mon, Jun 8
BRU
Brussels
SEA
Seattle
$854 Roundtrip, found 5 days ago
$854
Roundtrip
found 5 days ago
Select Lufthansa flight, departing Thu, May 28 from Brussels to Seattle, returning Mon, Jun 8, priced at $854 found 5 days ago
Brussels Airlines
Sat, May 9 - Sat, May 16
BRU
Brussels
SEA
Seattle
$863 Roundtrip, found 5 days ago
$863
Roundtrip
found 5 days ago
Select Brussels Airlines flight, departing Sat, May 9 from Brussels to Seattle, returning Sat, May 16, priced at $863 found 5 days ago
Swiss International Air Lines
Thu, May 28 - Mon, Jun 8
BRU
Brussels
SEA
Seattle
$869 Roundtrip, found 5 days ago
$869
Roundtrip
found 5 days ago
Select Swiss International Air Lines flight, departing Thu, May 28 from Brussels to Seattle, returning Mon, Jun 8, priced at $869 found 5 days ago

Alternative airports near Seattle

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Seattle - Tacoma Intl. SEA. Cheapest option available. Average driving time to city center is 20 minutes. Flights from $728
SEA
Seattle - Tacoma Intl.
Cheapest
Average driving time to city center20 min
Flights from $728

Find the cheapest month to fly from Brussels (BRU) to Seattle (SEA)

October is typically the cheapest month to fly

From $515 - $889 per traveler.

Frequently asked questions

How much does a flight from Brussels (BRU-Brussels - National) to Seattle, WA (SEA-Seattle - Tacoma Intl.) cost?
You can find cheap one-way flights from $539 and cheap return flights from $715 Brussels (BRU-Brussels - National) to Seattle, WA (SEA-Seattle - Tacoma Intl.) with Expedia. One-way flights usually range from $657 to $5495, and return flights typically cost between $793 and $5131. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Brussels (BRU-Brussels - National) to Seattle, WA (SEA-Seattle - Tacoma Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Brussels (BRU-Brussels - National) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The cheapest month to fly from BRU to SEA is August when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Brussels (BRU-Brussels - National) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Enter BRU to SEA and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Brussels (BRU-Brussels - National) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Condor is one of the cheapest airlines offering connecting flights from Brussels (BRU) to Seattle (SEA), with round-trip tickets starting from around $761 with a layover in an airport. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Brussels (BRU-Brussels - National) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
To find a cheap flight from Brussels (BRU-Brussels - National) to Seattle, WA (SEA-Seattle - Tacoma Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Brussels (BRU-Brussels - National) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Brussels (BRU-Brussels - National) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The earliest flight from Brussels (BRU) to Seattle (SEA) typically departs at around 5:50 AM, operated by KLM and Delta. This is a seasonal service active in August, allowing you to start your journey early and make the most of your time in Seattle. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Brussels (BRU-Brussels - National) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The most popular departure times for flights from Brussels (BRU) to Seattle (SEA) are in the late morning, from 9am to noon. About 46% of passengers prefer this time window. Many major carriers, including UA, BA and SN, offer flights during this window. This timing is popular because it allows you to arrive in Seattle with ample time to settle in and explore.
How long does it take to fly from Brussels (BRU-Brussels - National) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
A flight from BRU to SEA with a layover takes around 12 hours 50 minutes, with the route covering approximately 4,945 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Brussels (BRU-Brussels - National) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
You can fly business class between BRU and SEA. Airlines that offer business class service on this route include:

  • United Airlines
  • British Airways
  • Brussels Airlines
  • Lufthansa
  • KLM
  • Icelandair
  • Emirates
  • Swiss International Air Lines
  • Air Canada
  • Finnair

First class is available with Emirates.
How do I earn miles on a Brussels (BRU-Brussels - National) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight with Expedia?
It's easy to earn miles on a Brussels (BRU-Brussels - National) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Seattle from Brussels - National (BRU)?
If you're planning to travel to Seattle from Brussels - National (BRU), you can fly into Seattle - Tacoma Intl. (SEA) Some flights may connect through major hubs like Heathrow (LHR), Frankfurt Intl. (FRA), Schiphol (AMS) before reaching Seattle. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Brussels (BRU-Brussels - National) to Seattle, WA (SEA-Seattle - Tacoma Intl.) at the last minute?
Typically, booking a last minute flight from Brussels (BRU-Brussels - National) to Seattle, WA (SEA-Seattle - Tacoma Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Brussels (BRU-Brussels - National) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight and hotel package?
Securing a Brussels (BRU-Brussels - National) to Seattle, WA (SEA-Seattle - Tacoma Intl.) Seattle Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Brussels (BRU-Brussels - National) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
If you booked your Brussels (BRU-Brussels - National) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Brussels - National
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, Icelandair, KLM, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, Turkish Airlines, United
Roundtrip price
$714
Distance
4944 mi

Book with confidence

Brussels to Seattle Flights

The cheapest times to fly from Brussels to Seattle

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Brussels to Seattle are during the month of August. You can find some of the cheapest flights from Brussels to Seattle with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Brussels to Seattle

Sunday is one of the best days to book for cheap flights from Brussels to Seattle: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Brussels to Seattle

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Brussels to Seattle in 2026. You can also book with separate airlines for your outbound and return journeys, from $539 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Brussels to Seattle flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Brussels to Seattle airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Brussels to Seattle Flights

*Flight schedules are subject to change.

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*Available to One Key members.