How to find cheap flights from Seattle to Belgium
Book a return flight from Seattle to Belgium from £437, the cheapest price currently available.
You'll be travelling from Seattle into Brussels International in Brussels with that fare.
For one-way travel, the lowest price right now is £185.
Open to going wherever the best deals are? Enter 'Belgium' in the 'To' field to discover the lowest fares across different cities.
Belgium has around five international airports, so you'll have your pick of arrival options.
Select 'Add nearby airports' to widen your search and compare prices across all airports close to both your departure and destination cities.
The earlier you book, the better. Fares are more likely to go up as your departure date gets closer, not fall.
Be the first to know when fares change. Download the Skyscanner app, set up a Price Alert, and we'll let you know when prices go up or down.
Best time to fly from Seattle to Belgium
If budget is a priority, October is typically the cheapest month to catch a flight from Seattle to Belgium.
Tuesdays and Wednesdays are often the most affordable days to fly in general, with fares dipping during the quieter midweek period.
June, July and August mark the height of the travel season in Belgium, with July the busiest of the three. Go then for a buzzing atmosphere and plenty going on.
For a more laid-back experience, January, February and March are a reliable choice. March is the quietest month.
Popular places to visit in Belgium
Brussels
Located in Brussels Capital Region, this city is a top destination for Seattle to Belgium flights. Grand-Place of Brussels, Atomium and Royal Palace of Brussels are must-sees for first-time visitors.
Brussels's main airports are Brussels International Airport (BRU) and Brussels S. Charleroi Airport (CRL). You'll find some competitive flight deals between the two.
Browse the selection of hotels in Brussels and pair your trip with a stay that fits your budget and style.
Ostend
Get to know Ostend's highlights including Church of Saint Peter and Saint Paul, The Crystal Ship and Mu.ZEE.
Land at Ostend - Bruges Airport (OST) and go straight from arrivals to discovering the sights.
After locking in your airfare, you can begin searching for the right stay among the hotels in Ostend.
Antwerp
Swing by well-known attractions like Cathedral of Our Lady, Antwerpen and Koninklijk Museum voor Schone Kunsten Antwerpen while you're in Antwerp.
Antwerp Deurne Airport (ANR) is the city's main airport, with routes connecting it to major destinations across the region and beyond.
Find a deal on where you'll stay by browsing the list of hotels in Antwerp.
Visiting Belgium for the first time? Here's what you need to know
Make sure you know the entry rules before you go. Rules can change depending on your passport, reason for travel and length of stay. Always check with official sources like your airline, the local embassy or your travel agent.
You'll be using the euro (EUR) for all your spending. Credit and debit cards are accepted just about everywhere.
The population of Belgium is roughly 12 million. Brussels is the capital.
Time is consistent across this destination, with one standard time zone fixed at UTC+1.
Weather can have a real impact on your trip, so travel when the forecast suits your plans. August is Belgium's warmest month.
Conditions are often coolest around January.
January is usually the wettest time of year, while April is the driest.
The Ommegang medieval festival, Ghent Festival and the Winter Wonders and Christmas Markets are some of the well-known events here. Consider booking your Seattle to Belgium flight around moments like these for a travel experience beyond the ordinary.
Complete your trip with hotels and a car rental
With your cheap flight from Seattle to Belgium locked in, it's now time to plan the rest of your adventure. Find the best prices and exclusive rates for hotels in Belgium. You can also check out car rental options in Belgium and compare offers from trusted providers in seconds.
