$476 Cheap Flights from Brussels (BRU) to Seattle (SEA)

View $476 flight on Sat, Apr 18, 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 $476 for one-way flights and $583 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aer Lingus
Wed, Dec 3 - Mon, Dec 15
BRU
Brussels
SEA
Seattle
$583 Roundtrip, found 2 hours ago
$583
Roundtrip
found 2 hours ago
Select Aer Lingus flight, departing Wed, Dec 3 from Brussels to Seattle, returning Mon, Dec 15, priced at $583 found 2 hours ago
Aer Lingus
Wed, Dec 17 - Mon, Mar 9
BRU
Brussels
SEA
Seattle
$614 Roundtrip, found 3 days ago
$614
Roundtrip
found 3 days ago
Select Aer Lingus flight, departing Wed, Dec 17 from Brussels to Seattle, returning Mon, Mar 9, priced at $614 found 3 days ago
Aer Lingus
Fri, Mar 6 - Sun, Mar 8
BRU
Brussels
SEA
Seattle
$650 Roundtrip, found 3 days ago
$650
Roundtrip
found 3 days ago
Select Aer Lingus flight, departing Fri, Mar 6 from Brussels to Seattle, returning Sun, Mar 8, priced at $650 found 3 days ago
Brussels Airlines
Sat, Feb 7 - Sat, Feb 21
BRU
Brussels
SEA
Seattle
$670 Roundtrip, found 6 days ago
$670
Roundtrip
found 6 days ago
Select Brussels Airlines flight, departing Sat, Feb 7 from Brussels to Seattle, returning Sat, Feb 21, priced at $670 found 6 days ago
Brussels Airlines
Mon, May 4 - Mon, May 4
BRU
Brussels
SEA
Seattle
$690 Roundtrip, found 23 hours ago
$690
Roundtrip
found 23 hours ago
Select Brussels Airlines flight, departing Mon, May 4 from Brussels to Seattle, returning Mon, May 4, priced at $690 found 23 hours ago
Brussels Airlines
Thu, Nov 27 - Sat, Dec 6
BRU
Brussels
SEA
Seattle
$710 Roundtrip, found 2 days ago
$710
Roundtrip
found 2 days ago
Select Brussels Airlines flight, departing Thu, Nov 27 from Brussels to Seattle, returning Sat, Dec 6, priced at $710 found 2 days ago
British Airways
Sat, Feb 7 - Sat, Feb 21
BRU
Brussels
SEA
Seattle
$711 Roundtrip, found 6 days ago
$711
Roundtrip
found 6 days ago
Select British Airways flight, departing Sat, Feb 7 from Brussels to Seattle, returning Sat, Feb 21, priced at $711 found 6 days ago
Icelandair
Thu, Jan 8 - Wed, Jan 21
BRU
Brussels
SEA
Seattle
$711 Roundtrip, found 16 hours ago
$711
Roundtrip
found 16 hours ago
Select Icelandair flight, departing Thu, Jan 8 from Brussels to Seattle, returning Wed, Jan 21, priced at $711 found 16 hours ago
British Airways
Thu, Dec 25 - Mon, Mar 9
BRU
Brussels
SEA
Seattle
$712 Roundtrip, found 3 days ago
$712
Roundtrip
found 3 days ago
Select British Airways flight, departing Thu, Dec 25 from Brussels to Seattle, returning Mon, Mar 9, priced at $712 found 3 days ago
American Airlines
Sat, Feb 7 - Sat, Feb 21
BRU
Brussels
SEA
Seattle
$732 Roundtrip, found 6 days ago
$732
Roundtrip
found 6 days ago
Select American Airlines flight, departing Sat, Feb 7 from Brussels to Seattle, returning Sat, Feb 21, priced at $732 found 6 days ago

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

October is typically the cheapest month to fly

From $517 - $1,038 per traveler.

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 $733
SEA
Seattle - Tacoma Intl.
Cheapest
Average driving time to city center20 min
Flights from $733

Frequently asked questions

How much does a flight from Brussels - National Airport (BRU) to Seattle - Tacoma Intl. Airport (SEA) cost?
Get a cheap one-way flight from $476 or cheap return flight from $583 from Brussels - National Airport (BRU) to Seattle - Tacoma Intl. Airport (SEA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Brussels - National Airport (BRU) to Seattle - Tacoma Intl. Airport (SEA)?
The cheapest month to fly from BRU to SEA is December, when there's less demand. Off-peak season is generally when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Brussels - National Airport (BRU) to Seattle - Tacoma Intl. Airport (SEA)?
Expedia's filter tool lets you easily compare different airlines, departure times and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest BRU to SEA flight.
How many flights per day from Brussels - National Airport (BRU) to Seattle - Tacoma Intl. Airport (SEA)?
Direct flights from Brussels - National Airport (BRU) to Seattle - Tacoma Intl. Airport (SEA) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel details and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from BRU to SEA?
Usually you'll have the most choice when it comes to flights on a Friday. Tuesdays tend to be the quietest.* However, this can change depending on the airline, season and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Brussels - National Airport (BRU) to Seattle - Tacoma Intl. Airport (SEA)?
Opt for a flight from Brussels - National Airport (BRU) to Seattle - Tacoma Intl. Airport (SEA) that leaves before 3 PM to reduce the risk of cancellations and delays. Departures after this time have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Brussels - National Airport (BRU) to Seattle - Tacoma Intl. Airport (SEA) last-minute?
Booking your flight from BRU to SEA right before your getaway is usually more expensive. But if there's some wiggle room with your departure times and dates, you could score a cheap last-minute fare.
Is it cheaper to book a BRU to SEA flight and hotel package?
You'll typically save money by securing a BRU to SEA flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one convenient place. Once you've selected your preferred flights and accommodations, consider other add-ons like activities, car rentals and tours.
Can I cancel or change the date of my flight from Brussels - National Airport (BRU) to Seattle - Tacoma Intl. Airport (SEA)?
Typically, you can reschedule or cancel your BRU to SEA flight. However, there may be additional charges, especially if you made your booking over 24 hours ago. Double-check your itinerary for the airline's fees and guidelines on flight changes, or if you need more information, visit our Customer Service portal.

Travel information

Origin airport
Brussels - National
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Aer Lingus, Air Canada, American Airlines, British Airways, Brussels Airlines, Delta, Emirates, Finnair, Iberia, Icelandair, KLM, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, Turkish Airlines, United
Roundtrip price
$582
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 December. 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 2025. You can also book with separate airlines for your outbound and return journeys, from $476 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

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*Available to One Key members.