Cheap flights from Brussels to Seattle from $409
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Brussels to Seattle departing on 10/30. 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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How to get the cheapest flight ticket from Brussels to Seattle
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 typical price of a round-trip flight between Brussels and Seattle?
What is the cheapest month to fly to Seattle?
In general, January is the cheapest month to fly from Brussels to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $662. If you don’t want to visit Seattle in January, then you should wait until March to fly from Brussels, when ticket prices are also cheap, with an average price of $665.
What is the cheapest day to depart on your flight to Seattle?
On average, the least expensive day to fly to Seattle from Brussels is on a Sunday. momondo users have found tickets for Sunday departures for as low as $696. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Monday is the most expensive day to depart from Brussels because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $979.
What is the cheapest time of day to depart on your flight to Seattle?
Flying to Seattle from Brussels in the morning is the least expensive time of day to depart. momondo users have found prices as low as $809 when looking at flights departing in the morning. Flights to Seattle are more costly at noon, with an average ticket price of $956. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.
How far in advance should I book a flight to Seattle?
You are more likely to see cheaper flights to Seattle from Brussels when booking 6 weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $736 when searching 6 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Brussels for as low as $653 on momondo.
What is the cheapest airline that flies from Brussels to Seattle/Tacoma Intl?
Aer Lingus, Lufthansa, and Scandinavian Airlines are the most popular carriers operating from Brussels to Seattle/Tacoma Intl
What airlines fly to Seattle?
British Airways, Delta and KLM are the top three most popular airlines that fly to Seattle from Brussels according to our data. British Airways is the first choice among our users, with 31% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 8 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.
Cheap Brussels to Seattle flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Brussels to Seattle
How far is Brussels to Seattle/Tacoma Intl by plane?
Brussels and Seattle/Tacoma Intl are 4931.7 mi apart from one another. In terms of flight time, this usually takes a little over 12h 25m.
When did momondo last update prices for flights from Brussels to Seattle/Tacoma Intl Airport?
Prices for flights from Brussels to Seattle/Tacoma Intl Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Brussels to Seattle/Tacoma Intl Airport?
As of June 2025, there are 8 operators available to choose from for flights from Brussels to Seattle/Tacoma Intl Airport.
How old do you have to be to fly from Brussels to Seattle/Tacoma Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Brussels to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The travel and health documents required for your trip to Seattle/Tacoma Intl 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 Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
Best airlines flying from Brussels to Seattle
Compare and see reviews for airlines that fly from Brussels to Seattle with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $524 | Free Cancellation | Rating 7.1 1,117 reviews | |||
| PriceFrom $586 | Free Cancellation | Rating 7.0 499 reviews | |||
| PriceFrom $604 | Free Cancellation | Rating 7.4 8,790 reviews | |||
| PriceFrom $605 | Free Cancellation | Rating 7.8 1,358 reviews | |||
| PriceFrom $611 | Free Cancellation | Rating 6.6 7,008 reviews | |||
| PriceFrom $616 | Free Cancellation | Rating 8.0 7,946 reviews | |||
| PriceFrom $651 | Free Cancellation | Rating 7.6 1,290 reviews | |||
| PriceFrom $670 | Free Cancellation | Rating 6.7 7,139 reviews |
Traveling to a place near Seattle?
Book flights to Seattle if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Brussels to Seattle?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Seattle from Brussels.
Can I find flights from Brussels to Seattle with flexible booking policies on momondo?
Yes. All flights to Seattle from Brussels on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from Brussels to Seattle?
momondo provides multiple filters to help you find the best flight to Seattle from Brussels. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from Brussels to Seattle right now. Can momondo alert me if prices change?
If you are not ready to book a flight from Brussels to Seattle now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Seattle and let you know when they change.