SEA - BRU

$235 Find Cheap Flights from Seattle to Brussels Airport - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$482
Typical prices: $461-$620
Multiple Airlines
Mon 2/8Tue 2/16
SEA - BRU • 2 stops
Cheapest one-way
$235
Typical prices: $436-$652
Icelandair
Tue 10/13
SEA - BRU • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Seattle and Brussels. You'll need at least 1 connection.
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Top layover airports
Montreal (YUL)
Cheapest • Avg $502 (round-trip)
Munich (MUC)
Shortest trip • 12h 54m (one-way)
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When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 46% compared to booking last minute.
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When to travel
January
Cheapest • 29% price drop
March
Most popular
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We hope you love your trip to Brussels!
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Booking Insights
Flight Deals

Cheap Flights from Seattle to Brussels (SEA-BRU)

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

Recent round-trip flight deals from Seattle to Brussels

Mon, Feb 8 - Tue, Feb 16
Multiple Airlines Logo
8:21 am - 9:35 amSEA  Seattle/Tacoma Intl-BRU Brussels Bruxelles-National
16h 14m2 stops Toronto Pearson Intl Dublin
Multiple Airlines Logo
10:15 am - 7:43 pmBRU  Brussels Bruxelles-National-SEA Seattle/Tacoma Intl
18h 28m2 stops Dublin Toronto Pearson Intl
$482Multiple Airlines
Wed, Nov 4 - Wed, Nov 18
Multiple Airlines Logo
8:19 am - 6:15 pmSEA  Seattle/Tacoma Intl-BRU Brussels Bruxelles-National
24h 56m2 stops Toronto Pearson Intl Dublin
Multiple Airlines Logo
10:15 am - 7:45 pmBRU  Brussels Bruxelles-National-SEA Seattle/Tacoma Intl
18h 30m2 stops Dublin Toronto Pearson Intl
$499Multiple Airlines
Mon, Oct 5 - Sun, Oct 18
Icelandair Logo
7:00 pm - 12:55 pmSEA  Seattle/Tacoma Intl-BRU Brussels Bruxelles-National
32h 55m1 stop Reykjavik Keflavik Intl
Icelandair Logo
1:50 pm - 5:55 pmBRU  Brussels Bruxelles-National-SEA Seattle/Tacoma Intl
13h 05m1 stop Reykjavik Keflavik Intl
$507Icelandair
Sun, Oct 18 - Tue, Nov 3
Icelandair Logo
3:40 pm - 12:55 pmSEA  Seattle/Tacoma Intl-BRU Brussels Bruxelles-National
12h 15m1 stop Reykjavik Keflavik Intl
Icelandair Logo
12:50 pm - 5:00 pmBRU  Brussels Bruxelles-National-SEA Seattle/Tacoma Intl
13h 10m1 stop Reykjavik Keflavik Intl
$511Icelandair
Wed, Nov 4 - Wed, Nov 18
Lufthansa Logo
2:50 pm - 4:15 pmSEA  Seattle/Tacoma Intl-BRU Brussels Bruxelles-National
16h 25m1 stop Munich Franz Josef Strauss
Lufthansa Logo
7:00 am - 12:00 pmBRU  Brussels Bruxelles-National-SEA Seattle/Tacoma Intl
14h 00m1 stop Frankfurt am Main
$708Lufthansa
Mon, Nov 2 - Wed, Dec 9
British Airways Logo
6:45 pm - 4:40 pmSEA  Seattle/Tacoma Intl-BRU Brussels Bruxelles-National
12h 55m1 stop London Heathrow
British Airways Logo
5:55 pm - 11:25 amBRU  Brussels Bruxelles-National-SEA Seattle/Tacoma Intl
26h 30m1 stop London Heathrow
$708British Airways
Wed, Nov 4 - Wed, Nov 18
Lufthansa Logo
2:50 pm - 4:15 pmSEA  Seattle/Tacoma Intl-BRU Brussels Bruxelles-National
16h 25m1 stop Munich Franz Josef Strauss
Lufthansa Logo
7:00 am - 12:00 pmBRU  Brussels Bruxelles-National-SEA Seattle/Tacoma Intl
14h 00m1 stop Frankfurt am Main
$709Lufthansa
Tue, Nov 3 - Tue, Nov 10
British Airways Logo
1:30 pm - 5:05 pmSEA  Seattle/Tacoma Intl-BRU Brussels Bruxelles-National
18h 35m1 stop London Heathrow
British Airways Logo
12:05 pm - 4:50 pmBRU  Brussels Bruxelles-National-SEA Seattle/Tacoma Intl
13h 45m1 stop London Heathrow
$720British Airways
Tue, Nov 3 - Tue, Nov 10
United Airlines Logo
11:15 pm - 8:50 amSEA  Seattle/Tacoma Intl-BRU Brussels Bruxelles-National
24h 35m2 stops Newark London Heathrow
United Airlines Logo
10:10 am - 7:03 pmBRU  Brussels Bruxelles-National-SEA Seattle/Tacoma Intl
17h 53m1 stop Chicago O'Hare Intl
$724United Airlines
Tue, Nov 3 - Tue, Nov 10
United Airlines Logo
7:00 am - 1:15 pmSEA  Seattle/Tacoma Intl-BRU Brussels Bruxelles-National
21h 15m2 stops Chicago O'Hare Intl London Heathrow
United Airlines Logo
10:10 am - 7:03 pmBRU  Brussels Bruxelles-National-SEA Seattle/Tacoma Intl
17h 53m1 stop Chicago O'Hare Intl
$724United Airlines
Booking Insights

KAYAK's insights & trends for Seattle to Brussels flights

Get data-powered insights and trends into flights from Seattle to Brussels to help you find the cheapest flights, the best time to fly and much more.

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

Flight prices are below average for this route right now.

Flights to Brussels Bruxelles-National Airport from Seattle usually cost between $611 and $911 in February.
The lowest price found in the past 5 days was $482 on Multiple Airlines (Feb 8-Feb 16).

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

The cheapest month for flights from Seattle to Brussels Bruxelles-National Airport is January, where tickets cost $510 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is $1,284 and $882 respectively.

How far in advance should I book a flight from Seattle to Brussels Bruxelles-National Airport?

To get a below average price on the flight from Seattle to Brussels Bruxelles-National Airport, you should book around 4 weeks before departure, which saves you about 46% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 13 weeks before departure.

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Good to know

Low season

July

Cheapest flight

$235
Best time to beat the crowds but there is an average 10% increase in price.
Most popular time to fly and prices are also 16% lower on average.
Flight from Seattle to Brussels Airport

When to book flights from Seattle to Brussels

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

FAQs for booking Seattle to Brussels Airport flights

  • Traveling with your child can be convenient if you consider flying with Condor from SEA to BRU. They offer family-friendly services, including special family check-in counters, pre-boarding for those with young children, changing facilities, and in-flight entertainment with child-friendly content.

    What are the transport options from Brussels Airport to downtown?

  • You can connect from BRU Airport to Brussels North in downtown Brussels using the Ic train of Belgian Railways servicing NMBS and SNCB Lines with an interval of 10 minutes. STIB bus links BRU Airport with Schuman in downtown Brussels and operates at a 20-mins interval. De Lijn bus connects BRU Airport to downtown Brussels and operates after every 30 minutes. FlixBus bus runs six times weekly and connects BRU Airport to downtown Brussels.

    What are some layover airports for flights from Seattle to Brussels?

  • All flights have layovers on the SEA to BRU route. Some of the stopover airports include Frankfurt (FR) by Condor and Lufthansa, Keflavik (KEF) by Iceland, Dublin (DUB) by Aer Lingus, and London (LHR) by Finnair, Iberia, American, and British.

    Which lounges can I access at Seattle Airport?

  • SEA Airport has lounges where you can relax while waiting for your BRU flight. Some of the lounges offer exclusive access to their Business- and First-class passengers free of charge. They include Centurion Lounge on Concourse B at the Airside, Delta Sky Club Lounge on Concourse A at the Airside, and Alaska Lounge with three locations on Concourse D, Concourse C, and North Satellite at the Airside.

    What is the carry-on policy for flights from Seattle to Brussels?

  • What is the cheapest flight from Seattle to Brussels Bruxelles-National Airport?

    In the last 5 days, the lowest price for a flight from Seattle to Brussels Bruxelles-National Airport was $235 for a one-way ticket and $482 for a round-trip.

  • Do I need a passport to fly between Seattle and Brussels Airport?

    Yes, you’ll need a passport to travel to Brussels Airport from Seattle.

  • Which aircraft models fly most regularly from Seattle to Brussels Airport?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Seattle to Brussels Airport?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Seattle and Brussels Airport, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Seattle to Brussels, KLM or Delta?

    The two airlines most popular with KAYAK users for flights from Seattle to Brussels are KLM and Delta. With an average price for the route of $764 and an overall rating of 7.8, KLM is the most popular choice. Delta is also a great choice for the route, with an average price of $759 and an overall rating of 7.8.

  • How does KAYAK find such low prices on flights from Seattle to Brussels Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Brussels Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Brussels Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Brussels Airport from Seattle is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Brussels Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Brussels Airport with an airline and back to Seattle with another airline. Booking your flights between Seattle and BRU can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Brussels Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Brussels Airport from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Seattle to Brussels Bruxelles-National Airport

  • Yes. Airlines flying from Miami to Vilnius assist passengers with special needs. Each airline operating on this route runs a wheelchair assistance program to help passengers with limited mobility get through the airport. Airlines like United Airlines, Lufthansa, and Turkish Airlines offer airport attendants who assist travelers with reduced mobility with their luggage from check-in areas to baggage claim on arrival.
  • Consider flying with Tap Air Portugal from Seattle–Tacoma Airport - Seatac (SEA) to Brussels Airport - Zaventem (BRU) to enjoy personalized meals that match your dietary needs. They include age-appropriate meals for children, Gluten-free meals for their gluten-intolerant passengers, and vegan, diabetic, and vegetarian meals specified for these passengers.
  • Condor and Tap Air Portugal allow minors aged 5 to 11 to travel unaccompanied from SEA to BRU. Their travel is only restricted to domestic flights. Both airlines have ground personnel who can help them through check-in. An assigned in-flight crew supervises the unaccompanied minors throughout their flight for enhanced safety and comfort.
  • SWISS offers extensive accessible services to special needs passengers traveling from SEA to BRU. The airline offer wheelchair assistance to passengers with reduced mobility. Their low-vision and hard-to-hear passengers have access to other forms of communication, such as braille, audio descriptions, and written or visual announcements.
  • Since the journey from SEA to BRU is long, consider flying Business- or First-class with Scandinavian Airlines for enhanced comfort. They offer these passengers special services and amenities, including fine dining options, spacious seats, and increased allowed size of carry-on bags.

Everything you need to know for your flight from Seattle to Brussels

Information on your arrival and departure airports

Seattle (SEA)
Bruxelles-National (BRU)