BRU - SEA

£403 Find Cheap Flights from Brussels to Seattle – Compare and Save

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Everything you should know

Cheapest return flight
£604
Typical prices: £575-£744
Icelandair
Fri 23/2Sat 3/3
BRU - SEA • 1 stop
Cheapest one-way flight
£403
Typical prices: £446-£664
British Airways
Fri 23/11
BRU - SEA • 2 stops
Direct flights
Not available
There are currently no direct flights between Brussels Bruxelles-National Airport and Seattle. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to book
15 weeks
in advance
Our data shows that travellers who book at least 15 weeks in advance save around 52% compared to booking last minute.
Insights
Insights
When to travel
December
Cheapest • 26% price drop
August
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
London Heathrow (LHR)
Cheapest • Avg £577 (return)
Munich Franz Josef Strauss (MUC)
Shortest trip • 13h 15m (one-way)
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Insights
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you enjoy your trip to Seattle!
Flight Deals
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Flight Deals

Cheap Flights from Brussels to Seattle (BRU-SEA)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Brussels to Seattle

Tue, 23 Feb - Wed, 3 Mar
Icelandair Logo
12:50 - 17:00BRU  Brussels Bruxelles-National-SEA Seattle/Tacoma Intl
13h 10m1 stop Reykjavik Keflavik Intl
Icelandair Logo
14:35 - 11:55SEA  Seattle/Tacoma Intl-BRU Brussels Bruxelles-National
12h 20m1 stop Reykjavik Keflavik Intl
£604Icelandair
Tue, 23 Feb - Tue, 2 Mar
Multiple Airlines Logo
09:45 - 17:00BRU  Brussels Bruxelles-National-SEA Seattle/Tacoma Intl
16h 15m2 stops London Heathrow Reykjavik Keflavik Intl
Multiple Airlines Logo
14:35 - 20:10SEA  Seattle/Tacoma Intl-BRU Brussels Bruxelles-National
20h 35m2 stops Reykjavik Keflavik Intl London Heathrow
£616Multiple Airlines
Wed, 24 Feb - Sun, 28 Feb
Multiple Airlines Logo
09:45 - 16:40BRU  Brussels Bruxelles-National-SEA Seattle/Tacoma Intl
15h 55m1 stop London Heathrow
Multiple Airlines Logo
18:50 - 20:10SEA  Seattle/Tacoma Intl-BRU Brussels Bruxelles-National
16h 20m1 stop London Heathrow
£616Multiple Airlines
Thu, 15 Oct - Sun, 18 Oct
Icelandair Logo
13:50 - 20:40BRU  Brussels Bruxelles-National-SEA Seattle/Tacoma Intl
15h 50m1 stop Reykjavik Keflavik Intl
Icelandair Logo
15:40 - 12:55SEA  Seattle/Tacoma Intl-BRU Brussels Bruxelles-National
12h 15m1 stop Reykjavik Keflavik Intl
£620Icelandair
Thu, 15 Oct - Sun, 18 Oct
Icelandair Logo
13:50 - 20:40BRU  Brussels Bruxelles-National-SEA Seattle/Tacoma Intl
15h 50m1 stop Reykjavik Keflavik Intl
Icelandair Logo
15:40 - 12:55SEA  Seattle/Tacoma Intl-BRU Brussels Bruxelles-National
12h 15m1 stop Reykjavik Keflavik Intl
£621Icelandair
Tue, 10 Nov - Sat, 16 Jan
Icelandair Logo
12:50 - 17:00BRU  Brussels Bruxelles-National-SEA Seattle/Tacoma Intl
13h 10m1 stop Reykjavik Keflavik Intl
Icelandair Logo
14:35 - 11:55SEA  Seattle/Tacoma Intl-BRU Brussels Bruxelles-National
12h 20m1 stop Reykjavik Keflavik Intl
£622Icelandair
Wed, 11 Nov - Wed, 13 Jan
British Airways Logo
12:00 - 16:50BRU  Brussels Bruxelles-National-SEA Seattle/Tacoma Intl
13h 50m1 stop London Heathrow
British Airways Logo
12:52 - 16:20SEA  Seattle/Tacoma Intl-BRU Brussels Bruxelles-National
18h 28m2 stops Dallas/Fort Worth London Heathrow
£624British Airways
Thu, 25 Feb - Mon, 1 Mar
Icelandair Logo
12:50 - 17:00BRU  Brussels Bruxelles-National-SEA Seattle/Tacoma Intl
13h 10m1 stop Reykjavik Keflavik Intl
Icelandair Logo
14:35 - 11:55SEA  Seattle/Tacoma Intl-BRU Brussels Bruxelles-National
12h 20m1 stop Reykjavik Keflavik Intl
£625Icelandair
Thu, 19 Nov - Wed, 2 Dec
British Airways Logo
10:10 - 00:42BRU  Brussels Bruxelles-National-SEA Seattle/Tacoma Intl
23h 32m2 stops London Heathrow Chicago O'Hare Intl
British Airways Logo
14:07 - 16:20SEA  Seattle/Tacoma Intl-BRU Brussels Bruxelles-National
17h 13m2 stops Dallas/Fort Worth London Heathrow
£625British Airways
Mon, 16 Nov - Wed, 2 Dec
Multiple Airlines Logo
12:10 - 00:35BRU  Brussels Bruxelles-National-SEA Seattle/Tacoma Intl
21h 25m2 stops London Heathrow Chicago O'Hare Intl
Multiple Airlines Logo
16:24 - 20:10SEA  Seattle/Tacoma Intl-BRU Brussels Bruxelles-National
18h 46m2 stops Los Angeles London Heathrow
£626Multiple Airlines
Booking Insights

Price, demand, and travel trends for Brussels Bruxelles-National Airport to Seattle flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights from Brussels Bruxelles-National Airport to Seattle with more confidence.

How much is a return flight from Brussels Bruxelles-National Airport to Seattle?

Return flights from Brussels Bruxelles-National Airport to Seattle start at £604. Prices are typical for this route right now, with typical return fares ranging from £575 to £744. The lowest price found in the past 5 days was £604 on Icelandair.

What's the cheapest day of the week to fly from Brussels Bruxelles-National Airport to Seattle?

Wednesday is the cheapest day of the week to fly from Brussels Bruxelles-National Airport to Seattle and is 6% cheaper than the average day. Sunday is the most expensive day with flight prices 8% higher than average. Based on deals found by KAYAK users in the last 12 months.

What is the cheapest month to fly from Brussels Bruxelles-National Airport to Seattle?

•December is the cheapest month to fly from Brussels Bruxelles-National Airport to Seattle at £493 return.
•January (£1,043) and April (£748) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 111% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from Brussels Bruxelles-National Airport to Seattle the cheapest?

Flights from Brussels Bruxelles-National Airport to Seattle are cheapest 15 weeks before departure. Booking in this window typically costs about 52% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

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Key details for Brussels Bruxelles-National Airport to Seattle flights

Low season

February

Cheapest flight

£403
Best time to beat the crowds but there is an average 10% increase in price.
Most popular time to fly and prices are also 1% lower on average.
Flights from Brussels Bruxelles-National Airport to Seattle

When to book flights from Brussels to Seattle

Are your dates flexible? Find out the best times to travel from Brussels to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your Brussels Bruxelles-National Airport to Seattle flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

  • Which cabin classes can I book on flights from Brussels Bruxelles-National Airport to Seattle?

    Two cabin classes are available on flights from Brussels Bruxelles-National Airport to Seattle:

    • Business Class
    • First Class

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

    A direct flight from Brussels Bruxelles-National Airport to Seattle takes 0h 00m, covering 4,941 miles.

  • Do I need a passport to fly from Brussels Bruxelles-National Airport to Seattle?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Brussels Bruxelles-National Airport to Seattle flight?

    Return flights from Brussels Bruxelles-National Airport to Seattle range from £575 to £744, with an average of £665 over the past 12 months. Anything below £575 counts as a good deal.

  • How expensive are last-minute Brussels Bruxelles-National Airport to Seattle flights?

    Last-minute fares on this route (booked within 2 weeks of departure) run 50% above the route average of £665. Book 15 weeks before departure for the lowest fares.

  • Have flight prices from Brussels Bruxelles-National Airport to Seattle changed much recently?

    Yes. Based on fares seen in the past 5 days, return flight prices on this route showed a wide range, from about £604 to £2,703. That means the highest observed fare was about 4x higher than the lowest one.

  • How are flight prices from Brussels Bruxelles-National Airport to Seattle looking right now?

    One-way fares from Brussels Bruxelles-National Airport to Seattle are currently higher than usual. Average one-way flight prices are about £896, which is 68% above the typical average for this route.

  • Which car hire options are available at Seattle/Tacoma Intl Airport (SEA)?

    Seattle/Tacoma Intl Airport (SEA) hosts 5 major car hire companies, with daily rates starting from around £3 for economy cars. Top options include:
    • Fox
    • Europcar
    • Thrifty
    • Budget
    • Dollar

  • Which airports can I use when flying from Brussels Bruxelles-National Airport to Seattle?

    Flights from Brussels Bruxelles-National Airport to Seattle usually depart from Brussels Bruxelles-National (BRU) and arrive at Seattle/Tacoma Intl (SEA).

  • Which airports do connecting flights from Brussels Bruxelles-National Airport to Seattle pass through?

    One-stop flights from Brussels Bruxelles-National Airport to Seattle most commonly connect through:

    • Reykjavik Keflavik Intl (KEF) – 23% of one-stop connections
    • Amsterdam Schiphol (AMS) – 19% of one-stop connections
    • London Heathrow (LHR) – 15% of one-stop connections
    • Frankfurt am Main (FRA) – 13% of one-stop connections

    Reykjavik Keflavik Intl (KEF) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Brussels Bruxelles-National Airport to Seattle?

    Yes. Being flexible with your travel dates can save you up to 13% on the Brussels Bruxelles-National Airport to Seattle route. Wednesday is the cheapest departure day at £628 return on average, while Sunday is the most expensive at £719, a difference of £91. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different stopover airport from Brussels Bruxelles-National Airport to Seattle?

    Flying via Munich Franz Josef Strauss (MUC) gives the shortest average 1-stop total travel time of 13h 15m, compared to 13h 17m via Zurich (ZRH) and 13h 24m via Amsterdam Schiphol (AMS).

  • What is the time difference between Brussels Bruxelles-National Airport and Seattle?

    Seattle is 9 hours behind Brussels Bruxelles-National Airport (Pacific Time vs Central European Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Seattle?

    Some of the most popular sights in Seattle are The Westin Seattle, Seattle Center, and Seattle Marriott Waterfront. These are among the most viewed places in Seattle on KAYAK.

Your guide to booking Brussels Bruxelles-National Airport to Seattle flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Wednesday departure instead of Sunday. On this route, Wednesday flights average £628 – about £91 less than Sunday (13% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 15 weeks before you fly. On this route, that window historically saves about 52% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Brussels Bruxelles-National Airport to Seattle trip for December. Fares historically average £493 return in that month – typically £549 less than the most expensive month, which is January (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Seattle/Tacoma Intl Airport.
    - Seattle Airport Marriott
    - Coast Gateway Hotel
    - Fairfield by Marriott Inn & Suites Seattle Sea-Tac Airport

More options for your flight from Brussels to Seattle

Complete your trip to Seattle with a hotel stay or car hire

Car hire in Seattle
Hotels in Seattle
Holidays in Seattle