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Cheap flights from Brussels Bruxelles-National Airport to Seattle from $353

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 Bruxelles-National Airport to Seattle departing on 6/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Brussels Bruxelles-National Airport to Seattle

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from Brussels Bruxelles-National Airport to Seattle.
Icelandair Logo
1:50 pm - 11:25 amBRU-SEA
30h 35m1 stop
Icelandair Logo
11:30 pm - 12:50 pmSEA-BRU
28h 20m1 stop
$642Icelandair
Find Deal
Sun, Jun 8 - Sun, Jun 15
Icelandair Logo
1:50 pm - 8:40 pmBRU-SEA
15h 50m1 stop
Icelandair Logo
11:30 pm - 12:50 pmSEA-BRU
28h 20m1 stop
$650Icelandair
Find Deal
Sat, Jun 14 - Sat, Jun 21
Scandinavian Airlines Logo
10:20 am - 1:50 pmBRU-SEA
12h 30m1 stop
Scandinavian Airlines Logo
4:20 pm - 7:50 pmSEA-BRU
18h 30m1 stop
$655Scandinavian Airlines
Find Deal
Wed, Sep 10 - Wed, Sep 24
British Airways Logo
9:10 pm - 11:35 amBRU-SEA
23h 25m1 stop
British Airways Logo
8:20 pm - 7:10 pmSEA-BRU
13h 50m1 stop
$656British Airways
Find Deal
Wed, May 21 - Fri, May 30
British Airways Logo
7:05 pm - 11:10 amBRU-SEA
25h 05m1 stop
British Airways Logo
1:29 pm - 2:20 pmSEA-BRU
15h 51m2 stops
$661British Airways
Find Deal
Mon, Sep 15 - Sat, Oct 4
Delta Logo
6:10 am - 11:40 amBRU-SEA
14h 30m1 stop
Delta Logo
7:15 am - 9:50 amSEA-BRU
17h 35m2 stops
$665Delta
Find Deal
Wed, May 21 - Fri, May 30
KLM Logo
8:00 am - 3:57 pmBRU-SEA
16h 57m1 stop
KLM Logo
6:07 pm - 2:35 pmSEA-BRU
11h 28m1 stop
$673KLM
Find Deal
Thu, May 8 - Tue, May 20
Delta Logo
8:00 am - 3:57 pmBRU-SEA
16h 57m1 stop
Delta Logo
10:58 pm - 8:40 amSEA-BRU
24h 42m1 stop
$691Delta
Find Deal
Sat, May 31 - Sat, Jun 21
Lufthansa Logo
6:45 am - 10:42 pmBRU-SEA
24h 57m2 stops
Lufthansa Logo
2:15 pm - 9:00 amSEA-BRU
33h 45m1 stop
$752Lufthansa
Find Deal
Sat, May 10 - Wed, May 21
Lufthansa Logo
10:15 am - 11:59 pmBRU-SEA
22h 44m1 stop
Lufthansa Logo
7:00 am - 9:00 amSEA-BRU
17h 00m1 stop
$860Lufthansa
Find Deal
Mon, Jul 14 - Mon, Jul 28

Icelandair flights from Brussels Bruxelles-National Airport to Seattle

Our best Icelandair deals on Brussels Bruxelles-National Airport to Seattle flight tickets
Icelandair
Jun 8
BRU1:50 pmBrussels Bruxelles-National
30h 35m
1 stop
SEA11:25 amSeattle/Tacoma Intl
Jun 15
SEA11:30 pmSeattle/Tacoma Intl
28h 20m
1 stop
BRU12:50 pmBrussels Bruxelles-National
Icelandair
Jun 14
BRU1:50 pmBrussels Bruxelles-National
15h 50m
1 stop
SEA8:40 pmSeattle/Tacoma Intl
Jun 21
SEA11:30 pmSeattle/Tacoma Intl
28h 20m
1 stop
BRU12:50 pmBrussels Bruxelles-National
Icelandair
May 7
BRU1:50 pmBrussels Bruxelles-National
13h 00m
1 stop
SEA5:50 pmSeattle/Tacoma Intl
May 21
SEA7:00 pmSeattle/Tacoma Intl
32h 50m
1 stop
BRU12:50 pmBrussels Bruxelles-National

United Airlines flights from Brussels Bruxelles-National Airport to Seattle

Our best United Airlines deals on Brussels Bruxelles-National Airport to Seattle flight tickets
United Airlines
May 7
BRU7:00 amBrussels Bruxelles-National
16h 13m
2 stops
SEA2:13 pmSeattle/Tacoma Intl
May 21
SEA7:20 amSeattle/Tacoma Intl
15h 45m
1 stop
BRU8:05 amBrussels Bruxelles-National
United Airlines
Jun 16
BRU9:40 amBrussels Bruxelles-National
34h 11m
1 stop
SEA10:51 amSeattle/Tacoma Intl
Jul 2
SEA7:10 amSeattle/Tacoma Intl
16h 50m
2 stops
BRU9:00 amBrussels Bruxelles-National
United Airlines
Jul 22
BRU12:00 pmBrussels Bruxelles-National
21h 56m
1 stop
SEA12:56 amSeattle/Tacoma Intl
Aug 2
SEA12:20 amSeattle/Tacoma Intl
23h 30m
1 stop
BRU8:50 amBrussels Bruxelles-National

See travel insights to Seattle from

How to get the cheapest flight ticket from Brussels Bruxelles-National Airport 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 Bruxelles-National Airport and Seattle?

What is the cheapest month to fly to Seattle?

In general, January is the cheapest month to fly from Brussels Bruxelles-National Airport 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 Bruxelles-National Airport, 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 Bruxelles-National Airport 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 Bruxelles-National Airport 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 Bruxelles-National Airport 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 Bruxelles-National Airport when booking 25 weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $749 when searching 25 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Brussels Bruxelles-National Airport for as low as $689 on momondo.

How have Brussels Bruxelles-National Airport to Seattle flight prices changed over time?

As of April 2025, prices for Brussels Bruxelles-National Airport to Seattle flights are approximately 31% more expensive when compared to flights at the same time last year.

When to book flights from Brussels Bruxelles-National Airport to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Brussels Bruxelles-National Airport to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Brussels Bruxelles-National Airport to Seattle (BRU to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Brussels Bruxelles-National Airport to Seattle

Best Price Found

$353

Fastest flight time

12h 25m

Direct flights

None

Airports in Seattle

1 airport
The best one-way flight to Seattle from Brussels Bruxelles-National Airport in the past 72 hours is $353. The best round-trip flight deal from Brussels Bruxelles-National Airport to Seattle found on momondo in the last 72 hours is $642.
The fastest flight from Brussels Bruxelles-National Airport to Seattle takes 12h 25m
There are no direct flights from Brussels Bruxelles-National Airport to Seattle. Popular non-direct route for this connection is Brussels Bruxelles-National Airport - Seattle/Tacoma Intl Airport.
There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)

  • How far is Brussels Bruxelles-National to Seattle/Tacoma Intl by plane?

    There are 4932.2 mi between Brussels Bruxelles-National and Seattle/Tacoma Intl. In terms of flight time, this usually takes a little over 12h 25m.

  • When did momondo last update prices for flights from Brussels Bruxelles-National Airport to Seattle/Tacoma Intl Airport?

    Prices for flights from Brussels Bruxelles-National Airport to Seattle/Tacoma Intl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Brussels Bruxelles-National Airport to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Brussels Bruxelles-National Airport to Seattle/Tacoma Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Brussels Bruxelles-National Airport to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The required travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Brussels Bruxelles-National Airport to Seattle?


Best airlines flying from Brussels Bruxelles-National Airport to Seattle

Compare and see reviews for airlines that fly from Brussels Bruxelles-National Airport to Seattle with momondo
Airline
Rating
Free Cancellation
Price
Aer LingusPriceFrom $524Free CancellationRating
7.0
1,068 reviews
Search Aer Lingus flights
IcelandairPriceFrom $586Free CancellationRating
7.0
484 reviews
Search Icelandair flights
KLMPriceFrom $605Free CancellationRating
7.8
1,333 reviews
Search KLM flights
British AirwaysPriceFrom $611Free CancellationRating
6.6
6,809 reviews
Search British Airways flights
DeltaPriceFrom $616Free CancellationRating
8.0
7,920 reviews
Search Delta flights
FinnairPriceFrom $651Free CancellationRating
7.6
1,272 reviews
Search Finnair flights
LufthansaPriceFrom $670Free CancellationRating
6.7
7,030 reviews
Search Lufthansa flights
United AirlinesPriceFrom $694Free CancellationRating
7.4
8,685 reviews
Search United Airlines flights

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Leavenworth
Tacoma
SeaTac
Ocean Shores
Olympia
Kent
Renton
Federal Way
Tukwila
Puyallup
Kirkland
Lakewood
Lynnwood
Fife
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Marysville
Centralia
Redmond
Cle Elum
Lacey

Why 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. momondo allows you to filter the results for Brussels to Seattle flights to just show those with flexible booking policies.

How can momondo help me find flights from Brussels to Seattle?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Seattle from Brussels.

I’m not ready to book a flight from Brussels to Seattle right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Seattle from Brussels. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.


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