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Cheap flights from Brussels Bruxelles-National Airport to Seattle from $298

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 10/6. 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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Find the cheapest flights from Brussels Bruxelles-National Airport to Seattle

Cheap round-trip flights

Icelandair Logo
1:50 pm - 5:50 pmBRU-SEA
13h 00m1 stop
Icelandair Logo
3:45 pm - 12:50 pmSEA-BRU
12h 05m1 stop
$506Icelandair
Find Deal
sex, out 10 - sex, out 17
Icelandair Logo
1:50 pm - 8:40 pmBRU-SEA
15h 50m1 stop
Icelandair Logo
3:45 pm - 12:50 pmSEA-BRU
12h 05m1 stop
$510Icelandair
Find Deal
seg, out 6 - sex, out 10
Icelandair Logo
1:50 pm - 8:40 pmBRU-SEA
15h 50m1 stop
Icelandair Logo
7:00 pm - 12:50 pmSEA-BRU
32h 50m1 stop
$515Icelandair
Find Deal
qui, out 9 - qui, out 16
Aer Lingus Logo
10:20 am - 5:50 pmBRU-SEA
16h 30m1 stop
Aer Lingus Logo
7:35 pm - 3:30 pmSEA-BRU
11h 55m1 stop
$530Aer Lingus
Find Deal
qua, out 15 - sáb, out 25
Scandinavian Airlines Logo
10:20 am - 2:00 pmBRU-SEA
12h 40m1 stop
Scandinavian Airlines Logo
4:20 pm - 11:15 amSEA-BRU
33h 55m2 stops
$535Scandinavian Airlines
Find Deal
sex, out 10 - sex, out 17
British Airways Logo
10:55 am - 10:16 pmBRU-SEA
20h 21m2 stops
British Airways Logo
7:50 pm - 8:50 pmSEA-BRU
17h 00m1 stop
$538British Airways
Find Deal
qua, out 15 - sáb, out 25
British Airways Logo
11:50 am - 4:55 pmBRU-SEA
14h 05m1 stop
British Airways Logo
1:35 pm - 3:25 pmSEA-BRU
16h 50m1 stop
$541British Airways
Find Deal
seg, fev 9 - sex, fev 20
Finnair Logo
6:35 am - 7:29 pmBRU-SEA
21h 54m2 stops
Finnair Logo
10:32 am - 10:30 pmSEA-BRU
27h 58m2 stops
$562Finnair
Find Deal
qui, out 16 - qua, out 29
Finnair Logo
6:35 am - 7:29 pmBRU-SEA
21h 54m2 stops
Finnair Logo
10:32 am - 10:30 pmSEA-BRU
27h 58m2 stops
$563Finnair
Find Deal
qui, out 16 - qua, out 29
Aer Lingus Logo
10:20 am - 5:50 pmBRU-SEA
16h 30m1 stop
Aer Lingus Logo
7:35 pm - 8:40 pmSEA-BRU
16h 05m1 stop
$590Aer Lingus
Find Deal
qua, set 10 - qua, out 1

Icelandair flights from Brussels Bruxelles-National Airport to Seattle

Our best Icelandair deals on Brussels Bruxelles-National Airport to Seattle flight tickets
Icelandair
Oct 10
BRU1:50 pmBrussels Bruxelles-National
13h 00m
1 stop
SEA5:50 pmSeattle/Tacoma Intl
Oct 17
SEA3:45 pmSeattle/Tacoma Intl
12h 05m
1 stop
BRU12:50 pmBrussels Bruxelles-National
$506
Find similar
Icelandair
Oct 6
BRU1:50 pmBrussels Bruxelles-National
15h 50m
1 stop
SEA8:40 pmSeattle/Tacoma Intl
Oct 10
SEA3:45 pmSeattle/Tacoma Intl
12h 05m
1 stop
BRU12:50 pmBrussels Bruxelles-National
$510
Find similar
Icelandair
Oct 9
BRU1:50 pmBrussels Bruxelles-National
15h 50m
1 stop
SEA8:40 pmSeattle/Tacoma Intl
Oct 16
SEA7:00 pmSeattle/Tacoma Intl
32h 50m
1 stop
BRU12:50 pmBrussels Bruxelles-National
$515
Find similar

Scandinavian Airlines flights from Brussels Bruxelles-National Airport to Seattle

Our best Scandinavian Airlines deals on Brussels Bruxelles-National Airport to Seattle flight tickets
Scandinavian Airlines
Oct 10
BRU10:20 amBrussels Bruxelles-National
12h 40m
1 stop
SEA2:00 pmSeattle/Tacoma Intl
Oct 17
SEA4:20 pmSeattle/Tacoma Intl
33h 55m
2 stops
BRU11:15 amBrussels Bruxelles-National
$535
Find similar
Scandinavian Airlines
Sep 8
BRU10:20 amBrussels Bruxelles-National
21h 55m
2 stops
SEA11:15 pmSeattle/Tacoma Intl
Sep 28
SEA4:20 pmSeattle/Tacoma Intl
19h 15m
2 stops
BRU8:35 pmBrussels Bruxelles-National
$707
Find similar
Scandinavian Airlines
Sep 8
BRU10:20 amBrussels Bruxelles-National
12h 30m
1 stop
SEA1:50 pmSeattle/Tacoma Intl
Sep 28
SEA4:20 pmSeattle/Tacoma Intl
18h 30m
1 stop
BRU7:50 pmBrussels Bruxelles-National
$741
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Brussels Bruxelles-National Airport to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated agosto 27, 2025.
Use the filters below to find and compare flights from Brussels Bruxelles-National Airport to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

sex 10/10

1:50 pm-5:50 pm

1 stop13h 00m

Seattle/Tacoma Intl

sex 10/17

3:45 pm-12:50 pm

1 stop12h 05m

$506

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

seg 10/6

1:50 pm-8:40 pm

1 stop15h 50m

Seattle/Tacoma Intl

sex 10/10

3:45 pm-12:50 pm

1 stop12h 05m

$510

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

qui 10/9

1:50 pm-8:40 pm

1 stop15h 50m

Seattle/Tacoma Intl

qui 10/16

7:00 pm-12:50 pm

1 stop32h 50m

$515

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

qua 10/15

10:20 am-5:50 pm

1 stop16h 30m

Seattle/Tacoma Intl

sáb 10/25

7:35 pm-3:30 pm

1 stop11h 55m

$530

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

sex 10/10

10:20 am-2:00 pm

1 stop12h 40m

Seattle/Tacoma Intl

sex 10/17

4:20 pm-11:15 am

2 stops33h 55m

$535

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

qua 10/15

10:55 am-10:16 pm

2 stops20h 21m

Seattle/Tacoma Intl

sáb 10/25

7:50 pm-8:50 pm

1 stop17h 00m

$538

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

seg 2/9

11:50 am-4:55 pm

1 stop14h 05m

Seattle/Tacoma Intl

sex 2/20

1:35 pm-3:25 pm

1 stop16h 50m

$541

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

qui 10/16

6:35 am-7:29 pm

2 stops21h 54m

Seattle/Tacoma Intl

qua 10/29

10:32 am-10:30 pm

2 stops27h 58m

$562

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

qui 10/16

6:35 am-7:29 pm

2 stops21h 54m

Seattle/Tacoma Intl

qua 10/29

10:32 am-10:30 pm

2 stops27h 58m

$563

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

qua 9/10

10:20 am-5:50 pm

1 stop16h 30m

Seattle/Tacoma Intl

qua 10/1

7:35 pm-8:40 pm

1 stop16h 05m

$590

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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, December 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 $592. If you don’t want to visit Seattle in December, then you should wait until January to fly from Brussels Bruxelles-National Airport, when ticket prices are also cheap, with an average price of $640.

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 weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $711 when searching 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 $645 on momondo.

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

As of August 2025, prices for Brussels Bruxelles-National Airport to Seattle flights are approximately 18% cheaper 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

Direct flights

None
There are no direct flights from Brussels Bruxelles-National Airport to Seattle. There are no popular flight routes from Brussels Bruxelles-National Airport to Seattle.
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  • 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 40m.

  • 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
7.2
1,238 reviews
Search Aer Lingus flights
LufthansaPriceFrom $570Free CancellationRating
6.8
7,363 reviews
Search Lufthansa flights
IcelandairPriceFrom $586Free CancellationRating
7.0
533 reviews
Search Icelandair flights
British AirwaysPriceFrom $592Free CancellationRating
6.7
7,310 reviews
Search British Airways flights
United AirlinesPriceFrom $604Free CancellationRating
7.4
8,945 reviews
Search United Airlines flights
KLMPriceFrom $605Free CancellationRating
7.8
1,384 reviews
Search KLM flights
DeltaPriceFrom $616Free CancellationRating
7.9
7,977 reviews
Search Delta flights
FinnairPriceFrom $651Free CancellationRating
7.6
1,321 reviews
Search Finnair 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
Renton
Lynnwood
Kent
Marysville
Puyallup
Federal Way
Cle Elum
Tukwila
Kirkland
Centralia
Lakewood
Shoreline
Fife
Redmond
Westport

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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