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Cheap Flights from Seattle to Brussels International

Compare Seattle to Brussels International flight deals

Find the cheapest month or even day of the year to fly to Brussels International

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Flight deals from Seattle to Brussels International

Looking for a cheap last-minute deal or the best return flight from Seattle to Brussels International Airport? If you want to travel next month, return fares start from $1,324. Find the lowest prices on one-way and return tickets right here.
Brussels.$970 per passenger.Departing Mon, 21 Sep, returning Fri, 16 Oct.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Seattle / Tacoma International on Mon, 21 Sep, arriving in Brussels International.Inbound indirect flight with Icelandair, departs from Brussels International on Fri, 16 Oct, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $970, select.
Brussels.$985 per passenger.Departing Tue, 1 Sep, returning Wed, 9 Sep.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Seattle / Tacoma International on Tue, 1 Sep, arriving in Brussels International.Inbound indirect flight with Icelandair, departs from Brussels International on Wed, 9 Sep, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $985, select.
Brussels.$999 per passenger.Departing Mon, 17 Aug, returning Mon, 31 Aug.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Seattle / Tacoma International on Mon, 17 Aug, arriving in Brussels International.Inbound indirect flight with Icelandair, departs from Brussels International on Mon, 31 Aug, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $999, select.
Brussels.$1,036 per passenger.Departing Fri, 16 Oct, returning Tue, 22 Dec.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Seattle / Tacoma International on Fri, 16 Oct, arriving in Brussels International.Inbound indirect flight with Icelandair, departs from Brussels International on Tue, 22 Dec, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,036, select.
Brussels.$1,037 per passenger.Departing Mon, 30 Nov, returning Thu, 10 Dec.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Seattle / Tacoma International on Mon, 30 Nov, arriving in Brussels International.Inbound indirect flight with Icelandair, departs from Brussels International on Thu, 10 Dec, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,037, select.
Brussels.$1,048 per passenger.Departing Wed, 14 Oct, returning Sat, 24 Oct.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Seattle / Tacoma International on Wed, 14 Oct, arriving in Brussels International.Inbound indirect flight with Icelandair, departs from Brussels International on Sat, 24 Oct, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,048, select.
Brussels.$1,114 per passenger.Departing Mon, 27 Jul, returning Wed, 12 Aug.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Seattle / Tacoma International on Mon, 27 Jul, arriving in Brussels International.Inbound indirect flight with Icelandair, departs from Brussels International on Wed, 12 Aug, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,114, select.
Brussels.$1,223 per passenger.Departing Wed, 11 Nov, returning Sun, 15 Nov.Return flight with Air Canada and Lufthansa.Outbound indirect flight with Air Canada, departs from Seattle / Tacoma International on Wed, 11 Nov, arriving in Brussels International.Inbound indirect flight with Lufthansa, departs from Brussels International on Sun, 15 Nov, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,223, select.
Brussels.$1,225 per passenger.Departing Thu, 3 Dec, returning Thu, 17 Dec.Return flight with Air Canada and Lufthansa.Outbound indirect flight with Air Canada, departs from Seattle / Tacoma International on Thu, 3 Dec, arriving in Brussels International.Inbound indirect flight with Lufthansa, departs from Brussels International on Thu, 17 Dec, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,225, select.
Brussels.$1,229 per passenger.Departing Sat, 2 Jan, returning Sun, 17 Jan.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Seattle / Tacoma International on Sat, 2 Jan, arriving in Brussels International.Inbound indirect flight with Air Canada, departs from Brussels International on Sun, 17 Jan, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,229, select.
Brussels.$1,274 per passenger.Departing Wed, 17 Feb, returning Sat, 27 Feb.Return flight with United.Outbound indirect flight with United, departs from Seattle / Tacoma International on Wed, 17 Feb, arriving in Brussels International.Inbound indirect flight with United, departs from Brussels International on Sat, 27 Feb, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,274, select.
Brussels.$1,276 per passenger.Departing Fri, 9 Apr, returning Fri, 16 Apr.Return flight with United.Outbound indirect flight with United, departs from Seattle / Tacoma International on Fri, 9 Apr, arriving in Brussels International.Inbound indirect flight with United, departs from Brussels International on Fri, 16 Apr, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,276, select.
Brussels.$1,294 per passenger.Departing Sun, 29 Nov, returning Wed, 13 Jan.Return flight with KLM.Outbound indirect flight with KLM, departs from Seattle / Tacoma International on Sun, 29 Nov, arriving in Brussels International.Inbound indirect flight with KLM, departs from Brussels International on Wed, 13 Jan, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,294, select.
Brussels.$1,322 per passenger.Departing Sat, 27 Feb, returning Sat, 6 Mar.Return flight with KLM.Outbound indirect flight with KLM, departs from Seattle / Tacoma International on Sat, 27 Feb, arriving in Brussels International.Inbound indirect flight with KLM, departs from Brussels International on Sat, 6 Mar, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,322, select.
Brussels.$1,323 per passenger.Departing Tue, 20 Oct, returning Fri, 20 Nov.Return flight with United.Outbound indirect flight with United, departs from Seattle / Tacoma International on Tue, 20 Oct, arriving in Brussels International.Inbound indirect flight with United, departs from Brussels International on Fri, 20 Nov, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,323, select.
Brussels.$1,324 per passenger.Departing Sat, 18 Jul, returning Sat, 25 Jul.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Seattle / Tacoma International on Sat, 18 Jul, arriving in Brussels International.Inbound indirect flight with Icelandair, departs from Brussels International on Sat, 25 Jul, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,324, select.

Find the cheapest month to fly from Seattle to Brussels International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Seattle to Brussels International flights are currently cheapest in September.
Jun
Find prices
Jul
from $1,325
Aug
from $1,000
Sep
from $986
Oct
from $1,049
Nov
from $1,224
Dec
from $1,226
Jan
from $1,230
Feb
from $1,275
Mar
from $1,393
Apr
from $1,277
May
Find prices

Seattle to Brussels International: Alternative routes

Compare routes from Seattle to Brussels below. You may find an airport to fly into that's cheaper, faster, or easier than Brussels International.

Brussels International

11km from central Brussels
ClosestCheapest
from $970
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Antwerp Deurne

39km from central Brussels
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Brussels S. Charleroi

44km from central Brussels
from $2,054
Search flights

Liege

81km from central Brussels
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Kortrijk

81km from central Brussels
Search flights

Seattle to Brussels: Flight information

The things to know before you go.
Cheapest flight found$970
Cheapest month to flySeptember

Finding cheap flights from Seattle to Brussels International: Frequently asked questions

The best price we found for a return flight from Seattle to Brussels International is $970. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Seattle to Brussels International. But we found flights with one stop from $970.
As of June 2026, there are no flights flying from Seattle to Brussels International.
The cheapest month to fly from Seattle to Brussels International is usually September.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seattle to Brussels International Airport on Monday, 21 September 2026.
No airlines currently offer direct flights between Seattle and Brussels International Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Brussels International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Brussels is around 40 days in advance, so don’t leave your flight to the last minute.

The cheapest airline that flies to Brussels International is Icelandair .

Travelling from Seattle to Brussels Airport (BRU): What you need to know

  • The timezone in Brussels is UTC+1, which is nine hours ahead of Seattle. Brussels Airport is located in Brussels.

  • Get to the airport on time so you don't miss your flight from Seattle to BRU. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid the stress of rushing.

  • July is a peak travel month. If you're taking off then or during a major holiday like Christmas or Thanksgiving, show up even earlier. Aim for at least two hours ahead for domestic flights and up to four hours for international journeys.

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

  • We make it simple to book cheap flights from Seattle to BRU that include a stopover. To explore the options leaving from Seattle-Tacoma International Airport (SEA), uncheck 'Direct flights only.' Then, choose a flight with a stop long enough to tour the city of your choice. Top stopovers between SEA and BRU include:

    • London Heathrow Airport (LHR)

    • Paris Charles de Gaulle Airport (CDG)

    • Keflavik Airport (KEF)

  • The journey from central Seattle to SEA takes around 35 minutes by public transport. If you drive, ride-share or get a taxi, you'll cover the 23 kilometres in 25 minutes or so, depending on traffic.

  • Want a leisurely start to your trip? Stay near Seattle-Tacoma International Airport. Whether you're catching an early flight from Seattle to Brussels Airport or just don't like being rushed, these hotels offer the perfect solution:

  • 80% of flights leaving Seattle-Tacoma International Airport touch down at their destination on time. Given its dependable on-time performance, delays are unlikely when setting off from SEA.

Seattle Paine Field International Airport (PAE)

  • PAE is about 40 kilometres from central Seattle. It'll take you 40 minutes or so to get to the airport driving from the city centre. Public transport takes approximately 1 hour 30 minutes.

  • Want to enjoy an extra night away before boarding your Seattle to BRU flight? Check in to a hotel near Seattle Paine Field International Airport before your adventure officially starts. These stays are expecting you:

  • Seattle Paine Field International Airport is known for its commitment to punctuality. 80% of flights leaving here keep to their planned arrival schedule.

About Brussels Airport (BRU)

Getting from Brussels Airport (BRU) to central Brussels

  • Central Brussels is roughly 8 kilometres from Brussels Airport. Travel times by car hire or taxi will vary based on traffic conditions, so do some research ahead of your trip.

  • When travelling on public transport, expect a journey time of around 20 minutes.

How to find the cheapest flights from Seattle to Brussels Airport (BRU)

  • $430 is the best price for a one-way ticket from Seattle to Brussels Airport. A return flight starts from $970. These prices may change depending on availability and demand.

  • Don't leave everything to the last minute. You're more likely to walk away with cheap flights from Seattle to BRU if you book ahead. Airlines often have some great early bird discounts.

  • If you can be flexible with your travel dates, try using the 'Whole month' tool. It'll give you the cheapest price across each month when searching for your Seattle to Brussels Airport ticket.

  • Save time searching for cheap plane tickets from Seattle to BRU by setting up a Price Alert. We'll send you an email or notification on the app when a lower fare pops up.

  • Filters make it easier to track down a bargain for your flight from Seattle to Brussels Airport. Pick the airlines, flight times and stops that make sense for you. Then sort the results by 'Cheapest' to bring up the lowest fares right away.

The best time to fly from Seattle to Brussels Airport (BRU)

  • Think about the pace you're looking for when planning your trip dates. December is the quietest month to go to Brussels. September is when most people book flights from Seattle to Brussels Airport (BRU), which may be ideal if you enjoy travelling when it's busier.

  • Before locking in your Seattle to BRU plane ticket, consider the weather you're most comfortable in. August is the warmest month in Brussels, with temperatures ranging from 12ºC to 27ºC.

  • If you like cooler conditions, look for a cheap ticket from Seattle to Brussels Airport in January when temperatures are between -2ºC and 8ºC.

More about Brussels

Explore more of Belgium

  • Brussels is easy to fall in love with, but there are so many other corners of Belgium you should also see. About 113 kilometres west of Brussels, a trip to Ostend will keep your itinerary packed. Start with leading attractions like Church of Saint Peter and Saint Paul, The Crystal Ship and Mu.ZEE.

  • Verviers is another well-known destination in Belgium and is around 105 kilometres east of Brussels. No journey is complete without a visit to Hôtel communal ou Ancienne Halle - Monument classé, Musée d'Archéologie et du Folklore and Musée des Beaux Arts et de la Ceramique.

More travel options

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.