Cheap flights from Seattle to Brussels from $189
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Brussels departing on 6/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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American Airlines flights from Seattle to Brussels Bruxelles-National Airport
Our best American Airlines deals on Seattle to Brussels Bruxelles-National Airport flight tickets
Air Canada flights from Seattle to Brussels Bruxelles-National Airport
Our best Air Canada deals on Seattle to Brussels Bruxelles-National Airport flight tickets
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How to get the cheapest flight ticket from Seattle to Brussels Bruxelles-National Airport
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Brussels Bruxelles-National Airport?
The cheapest month to fly to Brussels Bruxelles-National Airport from Seattle is in February. Flight prices, which tend to average around $527, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of February, then book flights to Brussels Bruxelles-National Airport from Seattle during November instead. Flights to Brussels Bruxelles-National Airport in November, while not as cheap as those in February, still average around $534.
What is the cheapest day to depart on your flight to Brussels Bruxelles-National Airport?
The cheapest day to depart from Seattle to Brussels Bruxelles-National Airport is on a Tuesday. Travelers who choose to depart for Brussels Bruxelles-National Airport on a Tuesday will often find tickets for as low as $626. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from Seattle to Brussels Bruxelles-National Airport for around $783.
What is the cheapest time of day to depart on your flight to Brussels Bruxelles-National Airport?
Our most recent data shows that the best time of day to fly to Brussels Bruxelles-National Airport is in the morning. Flights from Seattle to Brussels Bruxelles-National Airport during this time can be as low as $668. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $738 on average. Flights to Brussels Bruxelles-National Airport from Seattle at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.
How far in advance should I book a flight to Brussels Bruxelles-National Airport?
You are more likely to see cheaper flights to Brussels Bruxelles-National Airport from Seattle when booking 23 weeks ahead of your departure date. In general, you can expect to find flights to Brussels Bruxelles-National Airport for around $646 when searching 23 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Brussels Bruxelles-National Airport from Seattle for as low as $576 on momondo.
What is the cheapest airline that flies from Seattle/Tacoma Intl to Brussels Bruxelles-National?
Icelandair, Aer Lingus, and TAP AIR PORTUGAL are the most popular carriers operating from Seattle/Tacoma Intl to Brussels Bruxelles-National
What airlines fly to Brussels Bruxelles-National Airport?
Icelandair, Lufthansa and British Airways are the top three most popular airlines that fly to Brussels Bruxelles-National Airport from Seattle according to our data. Icelandair is the first choice among our users, with 42% of people opting to fly with this airline when traveling to Brussels Bruxelles-National Airport. Keep in mind that there are 11 different airlines that fly to Brussels Bruxelles-National Airport on a routine basis, so you have a few additional options to choose from.
When to book flights from Seattle to Brussels Bruxelles-National Airport
Cheap Seattle to Brussels Bruxelles-National Airport (SEA to BRU) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Seattle to Brussels Bruxelles-National Airport
How far is Seattle/Tacoma Intl to Brussels Bruxelles-National by plane?
The straight-line distance from Seattle/Tacoma Intl to Brussels Bruxelles-National is 4932.2 mi. Typically, this will take 12h 05m by plane in normal conditions.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Brussels Bruxelles-National Airport?
Prices for flights from Seattle/Tacoma Intl Airport to Brussels Bruxelles-National Airport refresh daily.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Brussels Bruxelles-National Airport?
As of April 2025, there are 11 operators available to choose from for flights from Seattle/Tacoma Intl Airport to Brussels Bruxelles-National Airport.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Brussels Bruxelles-National Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seattle/Tacoma Intl Airport to Brussels Bruxelles-National Airport.
What documentation or ID do you need to fly to Brussels Bruxelles-National Airport?
The travel and health documents required for your trip to Brussels Bruxelles-National Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Brussels Bruxelles-National Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Seattle to Brussels Bruxelles-National Airport?
Based on momondo bookings for flights between Seattle and Brussels Bruxelles-National Airport, the leading airline is Icelandair, making up 29% of the total bookings. Other popular airlines include Lufthansa with 15%, British Airways with 14%, and United Airlines with 11%.
Best airlines flying from Seattle to Brussels Bruxelles-National Airport
Compare and see reviews for airlines that fly from Seattle to Brussels Bruxelles-National Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $402 | Free Cancellation | Rating 7.0 487 reviews | |||
| PriceFrom $495 | Free Cancellation | Rating 6.6 6,834 reviews | |||
| PriceFrom $501 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $529 | Free Cancellation | Rating 7.4 8,696 reviews | |||
| PriceFrom $532 | Free Cancellation | Rating 7.0 1,076 reviews | |||
| PriceFrom $532 | Free Cancellation | Rating 7.8 1,333 reviews | |||
| PriceFrom $543 | Free Cancellation | Rating 7.0 9,242 reviews | |||
| PriceFrom $549 | Free Cancellation | Rating 8.0 7,936 reviews | |||
| PriceFrom $554 | Free Cancellation | Rating 7.4 1,446 reviews | |||
| PriceFrom $572 | Free Cancellation | Rating 7.6 1,273 reviews |
Traveling to a place near Brussels?
Book flights to Brussels if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Seattle to Brussels?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Seattle to Brussels. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from Seattle to Brussels with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to Brussels from Seattle with this policy.
How can momondo help me find flights from Seattle to Brussels?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Seattle to Brussels.
I’m not ready to book a flight from Seattle to Brussels right now. Can momondo alert me if prices change?
Yes. momondo can track prices for Seattle to Brussels flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.