Seattle (SEA) to Brussels (BRU) at a glance

Travel to Brussels (BRU) from Seattle (SEA) with a selection of airlines catering to this long-haul international route. Evaluate choices among both full-service and budget-friendly carriers to discover the itinerary that aligns with your budget, schedule, and travel needs as you delve into the iconic sights and neighborhoods of Brussels. Here are the essential details for flights departing from Seattle-Tacoma International Airport (SEA) to Brussels-National Airport (BRU).

• Fastest flight duration: around 10h 45m in-flight, plus roughly 1h 45m layover with one stop
• Route distance: roughly 5,000 miles (8,050 km)
• Flights per week: around 10 departures on average
• Typical fares (one-way): economy tickets often range from $210–$655, depending on seasonality and how far ahead you book

Flights from Seattle - Tacoma International Airport (SEA) to Brussels - National Airport (BRU)

According to recent traveler bookings, here are the top airlines flying from Seattle to Brussels, featuring both one-stop and multi-stop options. Common layovers include Keflavik International Airport (KEF) with a layover of about 1 hour and 15 minutes, Schiphol Airport (AMS) at approximately 1 hour and 30 minutes, and Heathrow Airport (LHR) with a longer layover of around 3 hours. This variety allows you to compare prices, total travel times, and cabin classes to discover the ideal itinerary for your journey.

• Icelandair: This comprehensive airline provides one-stop service, with one-way ticket prices generally between $210 and $550. It represents around 28% of departures on this route, featuring an in-flight duration of 10 hours and 45 minutes, leading to a total travel time of approximately 13 hours, including layover.
• United: Offering full-service one-stop flights, United’s one-way fares usually fall in the range of $265 to $685. This carrier accounts for about 21% of flights on this route, with an in-air time of 10 hours and 45 minutes, resulting in a total journey time close to 13 hours, including the layover.
• Delta: As a full-service airline providing one-stop options, Delta's one-way ticket prices typically range from $270 to $710. It makes up around 12% of departures on this route, featuring an in-flight duration of 10 hours and 45 minutes, with a total travel time of roughly 13 hours, including layover.
• British Airways: This full-service carrier offers one-stop service, with one-way fares that usually range from $235 to $610. British Airways accounts for approximately 10% of the flights on this route, with an in-flight time of 10 hours and 45 minutes, culminating in about 13 hours total travel time, including the layover.
• Virgin Atlantic: Providing both one-stop and multi-stop services, Virgin Atlantic typically offers one-way fares between $230 and $545. It covers roughly 8% of departures on this route, with a standard in-flight duration of 10 hours and 45 minutes, leading to a total journey time nearing 13 hours.

Best time to fly from Seattle (SEA) to Brussels (BRU)

The most popular months for travelers flying from Seattle to Brussels are June, July, and August, when peak temperatures in Brussels reach up to 65.8°F in July. If you prefer quieter travel, consider May, the least busy and relatively cheaper time to visit with fewer crowds and temperatures around 55.9°F. For better deals, August usually offers the lowest average one-way fare around $329. Flight availability peaks in July, with approximately 13 flights per week, making it easier to find convenient departure times. February has the fewest flights, with approximately 7 flights per week.

• Cheapest time to fly: August usually offers good deals with average one-way fare around $329, roughly 25% cheaper than the yearly average.
• Another budget-friendly time to fly: October typically offers an average one-way fare of around $371.
• Most flight options: July has the highest number of flights from Seattle to Brussels, with approximately 13 flights per week, giving you more flexibility in scheduling your trip.

Month	Temperature	Demand	Weekly Flights	Average one-way Fare
January	38.3°F (3.5°C)	Low	9	$460
February	39.6°F (4.2°C)	Average	7	$527
March	44.4°F (6.9°C)	Average	9	$403
April	50.2°F (10.1°C)	Average	9	$432
May	55.9°F (13.3°C)	Low	10	$393
June	62.8°F (17.1°C)	High	12	$482
July	65.8°F (18.8°C)	High	13	$493
August	65.7°F (18.7°C)	High	8	$329
September	60.4°F (15.8°C)	Average	9	$422
October	53.6°F (12.0°C)	Average	9	$371
November	45.9°F (7.7°C)	Low	9	$538
December	40.6°F (4.8°C)	Average	10	$460

*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.

Alternative routes from Seattle (SEA) to Brussels (BRU)

• Seattle to Antwerp (SEA-ANR): Antwerp International Airport (ANR) lies approximately 20 miles from Brussels - National Airport (BRU).
• Seattle to Charleroi (SEA-CRL): Brussels South Charleroi Airport (CRL) is situated around 30 miles from Brussels - National Airport (BRU).
• Seattle to Liege (SEA-LGG): Liege Airport (LGG) is located roughly 46 miles from Brussels - National Airport (BRU).

How to find the best prices for flights from Seattle (SEA) to Brussels (BRU)

Getting some of the best deals on flights from Seattle to Brussels is all about timing and flexibility. Here are some key tips to help you save:

1. Best times to book and fly: cheaper fares are usually found when booking at least two months in advance, which coincides with when most travelers make their reservations. Afternoon departures, between 12 PM and 6 PM, not only tend to offer lower prices but are also the most popular flight times. Additionally, flying on Thursday generally provides cheaper options, although Wednesday remains the most favored travel day.
2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Brussels - National Airport from Seattle - Tacoma International Airport

Brussels welcomes travelers from Seattle with a range of transport options based on price, convenience, and proximity. For departures, Seattle - Tacoma International Airport is roughly a 20-minute drive (covering about 14 miles) from central Seattle. Brussels city center is approximately a 15-minute drive (covering about 10 miles) from Brussels - National Airport, depending on traffic. Here's how to reach Brussels efficiently:

• Hotel transfer: Transfers offer a convenient way to reach your hotel in Brussels, with private rides that can be arranged in advance.
• Car rental: Renting a car from Brussels - National Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Brussels - National Airport on Expedia.
• Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
• Public transportation: From Brussels National Airport, several transport options are conveniently located nearby. The Zaventem Brussels-National-Airport Railway Station is just about 0.1 miles away on foot, while the Eurocontrol Tram Stop, a metro station, is approximately 3.3 miles from the airport by car. For those looking to reach the waterfront, Montreux Seaport, a seaport, is located around 8.4 miles away, typically accessible by car.