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SEA - BRU

$315 Find Cheap Flights from Seattle to Brussels Airport - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$633
Typical prices: $527-$871
Icelandair
Fri 11/23Sat 12/8
SEA - BRU • 1 stop
Cheapest one-way
$316
Typical prices: $358-$580
Icelandair
Sat 2/10
SEA - BRU • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Seattle and Brussels Bruxelles-National Airport. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to book
13 weeks
in advance
Our data shows that travelers who book at least 13 weeks in advance save around 50% compared to booking last minute.
Insights
Insights
When to travel
February
Cheapest • 28% price drop
April
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Toronto Pearson Intl (YYZ)
Cheapest • Avg $579 (round-trip)
Amsterdam Schiphol (AMS)
Shortest trip • 13h 19m (one-way)
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Insights
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We hope you love your trip to Brussels Bruxelles-National Airport!

Cheap Flights from Seattle to Brussels (SEA-BRU)

 

Cheap flights from Seattle to Brussels with top airlines, updated regularly. Compare round-trip, one-way, direct and last-minute deals.

Mon, Nov 23 - Tue, Dec 8
Icelandair Logo
2:35 pm - 11:55 amSEA  Seattle/Tacoma Intl-BRU Brussels Bruxelles-National
12h 20m1 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
$633Icelandair
Mon, Nov 23 - Tue, Dec 8
Icelandair Logo
2:35 pm - 11:55 amSEA  Seattle/Tacoma Intl-BRU Brussels Bruxelles-National
12h 20m1 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
$657Icelandair
Mon, Nov 23 - Mon, Nov 30
Multiple Airlines Logo
2:35 pm - 10:50 amSEA  Seattle/Tacoma Intl-BRU Brussels Bruxelles-National
35h 15m3 stops Reykjavik Keflavik Intl Stockholm Arlanda Oslo Gardermoen
Multiple Airlines Logo
8:25 pm - 5:00 pmBRU  Brussels Bruxelles-National-SEA Seattle/Tacoma Intl
29h 35m3 stops Belgrade Nikola Tesla Stockholm Arlanda Reykjavik Keflavik Intl
$688Multiple Airlines
Mon, Nov 23 - Mon, Nov 30
Multiple Airlines Logo
2:35 pm - 6:40 pmSEA  Seattle/Tacoma Intl-BRU Brussels Bruxelles-National
19h 05m2 stops Reykjavik Keflavik Intl Stockholm Arlanda
Multiple Airlines Logo
8:25 pm - 5:00 pmBRU  Brussels Bruxelles-National-SEA Seattle/Tacoma Intl
29h 35m3 stops Belgrade Nikola Tesla Stockholm Arlanda Reykjavik Keflavik Intl
$702Multiple Airlines
Tue, Feb 9 - Thu, Feb 25
United Airlines Logo
10:10 am - 8:50 amSEA  Seattle/Tacoma Intl-BRU Brussels Bruxelles-National
37h 40m2 stops Vancouver Intl London Heathrow
United Airlines Logo
7:00 am - 12:00 pmBRU  Brussels Bruxelles-National-SEA Seattle/Tacoma Intl
14h 00m1 stop Frankfurt am Main
$737United Airlines
Tue, Feb 9 - Wed, Feb 24
United Airlines Logo
3:15 pm - 8:50 amSEA  Seattle/Tacoma Intl-BRU Brussels Bruxelles-National
32h 35m2 stops Vancouver Intl London Heathrow
United Airlines Logo
6:45 am - 1:00 pmBRU  Brussels Bruxelles-National-SEA Seattle/Tacoma Intl
15h 15m1 stop Munich Franz Josef Strauss
$739United Airlines
Sun, Feb 7 - Mon, Feb 22
Delta Logo
2:20 pm - 7:35 amSEA  Seattle/Tacoma Intl-BRU Brussels Bruxelles-National
32h 15m1 stop Amsterdam Schiphol
Delta Logo
2:45 pm - 11:47 amBRU  Brussels Bruxelles-National-SEA Seattle/Tacoma Intl
30h 02m1 stop Amsterdam Schiphol
$748Delta
Wed, Feb 10 - Mon, Feb 22
Delta Logo
2:20 pm - 2:15 pmSEA  Seattle/Tacoma Intl-BRU Brussels Bruxelles-National
14h 55m1 stop Amsterdam Schiphol
Delta Logo
2:45 pm - 11:47 amBRU  Brussels Bruxelles-National-SEA Seattle/Tacoma Intl
30h 02m1 stop Amsterdam Schiphol
$748Delta
Tue, Apr 6 - Mon, Apr 19
British Airways Logo
8:20 pm - 8:25 pmSEA  Seattle/Tacoma Intl-BRU Brussels Bruxelles-National
15h 05m1 stop London Heathrow
British Airways Logo
8:50 pm - 11:35 amBRU  Brussels Bruxelles-National-SEA Seattle/Tacoma Intl
23h 45m1 stop London Heathrow
$754British Airways
Tue, Apr 6 - Mon, Apr 19
British Airways Logo
11:16 am - 3:15 pmSEA  Seattle/Tacoma Intl-BRU Brussels Bruxelles-National
18h 59m2 stops Chicago O'Hare Intl London Heathrow
British Airways Logo
8:50 pm - 11:35 amBRU  Brussels Bruxelles-National-SEA Seattle/Tacoma Intl
23h 45m1 stop London Heathrow
$758British Airways

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

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

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

Round-trip flights from Seattle to Brussels Bruxelles-National Airport typically range from $527 to $871. The lowest price found in the past 5 days was $633, on Icelandair.

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

Based on deals KAYAK users found in the last 12 months, Monday is the cheapest day of the week to fly from Seattle to Brussels Bruxelles-National Airport. It’s 16% cheaper than the average day, while Saturday is the most expensive, with prices 16% higher.

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

•February is the cheapest month to fly from Seattle to Brussels Bruxelles-National Airport at $496 round-trip.
•June ($1,217) and August ($910) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 145% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

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

Flights from Seattle to Brussels Bruxelles-National Airport are cheapest 13 weeks before departure. Booking in this window typically costs about 50% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

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Key details for Seattle to Brussels Bruxelles-National Airport flights

Low season

June

Cheapest flight

$316
Beat the crowds with an average 42% drop in travelers.
The most popular month to fly with an average 62% increase in travelers.
One-way flight from Seattle to Brussels Bruxelles-National 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

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

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

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

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

    • Economy Class
    • Premium Economy Class
    • Business Class
    • First Class

    Prices vary by airline.

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

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

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

    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 Seattle to Brussels Bruxelles-National Airport flight?

    Round-trip flights from Seattle to Brussels Bruxelles-National Airport range from $527 to $871, with an average of $685 over the past 12 months. Anything below $527 counts as a good deal.

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

    Last-minute fares on this route (booked within two weeks of departure) run 42% above the $685 route average. Book 13 weeks before departure for the lowest fares.

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

    One-way fares from Seattle to Brussels Bruxelles-National Airport are currently higher than usual. Average one-way flight prices are about $585, which is 34% above the typical average for this route.

  • What car rental options are available at Brussels Bruxelles-National Airport (BRU)?

    Brussels Bruxelles-National Airport (BRU) hosts 5 major car rental companies, with daily rates starting from around $19 for economy cars. Top options include:

    • Alamo
    • Hertz
    • keddy by Europcar
    • Europcar
    • Sixt

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

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

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

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

    • Reykjavik Keflavik Intl (KEF) - 38% of one-stop connections
    • Frankfurt am Main (FRA) - 15% of one-stop connections
    • Amsterdam Schiphol (AMS) - 14% of one-stop connections
    • Munich Franz Josef Strauss (MUC) - 14% of one-stop connections

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

    Yes. Flexible dates can save you up to 28% on flights from Seattle to Brussels Bruxelles-National Airport. Monday is the cheapest departure day at $581 round-trip on average, while Saturday is the most expensive at $799, a difference of $218.

    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 layover airport from Seattle to Brussels Bruxelles-National Airport?

    Flying via Amsterdam Schiphol (AMS) gives the shortest average 1-stop total travel time at 13h 19m, compared with 13h 24m via Munich Franz Josef Strauss (MUC) and 13h 33m via Frankfurt am Main (FRA).

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

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

  • What popular places can I visit in Brussels Bruxelles-National Airport?

    Some of the most popular sights in Brussels Bruxelles-National Airport are Grand Place, King Baudouin Stadium and Place Sainte-Catherine. These are among the most viewed places in Brussels Bruxelles-National Airport on KAYAK.

  • 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?

Your guide to booking Seattle to Brussels Bruxelles-National Airport 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 Monday departure and avoid flying on Saturday. On this route, Monday flights average $581, about $218 less than Saturday fares (27% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 13 weeks before you fly. On this route, that window historically saves about 50% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Seattle to Brussels Bruxelles-National Airport trip for February. Fares historically average $496 round-trip in that month - typically $721 less than the most expensive month, which is June (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Brussels Bruxelles-National Airport.

    • NH Brussels Airport
    • Crowne Plaza Brussels Airport By IHG
  • 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.

More options for your flight from Seattle to Brussels

Complete your trip to Brussels with a hotel stay or car rental

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