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Cheap flights from Brussels Bruxelles-National Airport to Seattle from $502

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 5/10. 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

Enter your travel dates to find the best prices.
Aer Lingus Logo
10:20 am - 5:10 pm
BRU
-
SEA
15h 50m
1 stop
Aer Lingus Logo
7:10 pm - 8:45 pm
SEA
-
BRU
16h 35m
1 stop
$598Aer Lingus
Thu, Apr 30 - Wed, May 13
Multiple Airlines Logo
10:00 am - 5:10 pm
BRU
-
SEA
16h 10m
1 stop
Multiple Airlines Logo
7:10 pm - 5:25 pm
SEA
-
BRU
13h 15m
1 stop
$633Multiple Airlines
Tue, Apr 21 - Tue, Apr 28
Aer Lingus Logo
10:20 am - 5:10 pm
BRU
-
SEA
15h 50m
1 stop
Aer Lingus Logo
7:10 pm - 8:45 pm
SEA
-
BRU
16h 35m
1 stop
$636Aer Lingus
Thu, Apr 30 - Wed, May 13
Multiple Airlines Logo
7:25 pm - 11:02 am
BRU
-
SEA
48h 37m
2 stops
Multiple Airlines Logo
7:00 pm - 12:55 pm
SEA
-
BRU
32h 55m
1 stop
$650Multiple Airlines
Sat, Apr 18 - Sat, Apr 25
Multiple Airlines Logo
7:25 pm - 9:40 am
BRU
-
SEA
47h 15m
2 stops
Multiple Airlines Logo
7:00 pm - 12:55 pm
SEA
-
BRU
32h 55m
1 stop
$656Multiple Airlines
Thu, Apr 30 - Wed, May 13
Multiple Airlines Logo
7:25 pm - 9:40 am
BRU
-
SEA
47h 15m
2 stops
Multiple Airlines Logo
7:00 pm - 12:55 pm
SEA
-
BRU
32h 55m
1 stop
$659Multiple Airlines
Thu, Apr 30 - Wed, May 13
Multiple Airlines Logo
10:20 am - 7:23 pm
BRU
-
SEA
42h 03m
2 stops
Multiple Airlines Logo
7:00 pm - 12:55 pm
SEA
-
BRU
32h 55m
1 stop
$662Multiple Airlines
Thu, Apr 30 - Wed, May 13
Multiple Airlines Logo
8:50 am - 10:19 am
BRU
-
SEA
34h 29m
2 stops
Multiple Airlines Logo
7:00 pm - 12:55 pm
SEA
-
BRU
32h 55m
1 stop
$664Multiple Airlines
Thu, Apr 30 - Wed, May 13
Multiple Airlines Logo
10:20 am - 7:23 pm
BRU
-
SEA
42h 03m
2 stops
Multiple Airlines Logo
7:00 pm - 12:55 pm
SEA
-
BRU
32h 55m
1 stop
$683Multiple Airlines
Thu, Apr 30 - Wed, May 13
Multiple Airlines Logo
10:30 am - 5:10 pm
BRU
-
SEA
15h 40m
1 stop
Multiple Airlines Logo
7:10 pm - 5:55 pm
SEA
-
BRU
13h 45m
1 stop
$684Multiple Airlines
Wed, Apr 22 - Wed, Apr 29

Icelandair flights from Brussels Bruxelles-National Airport to Seattle

Our best Icelandair deals on Brussels Bruxelles-National Airport to Seattle flight tickets
Icelandair
Apr 23
BRU1:50 pmBrussels Bruxelles-National
15h 50m
1 stop
SEA8:40 pmSeattle/Tacoma Intl
May 6
SEA3:40 pmSeattle/Tacoma Intl
12h 15m
1 stop
BRU12:55 pmBrussels Bruxelles-National
$756
Icelandair
Apr 30
BRU1:50 pmBrussels Bruxelles-National
13h 05m
1 stop
SEA5:55 pmSeattle/Tacoma Intl
May 13
SEA7:00 pmSeattle/Tacoma Intl
32h 55m
1 stop
BRU12:55 pmBrussels Bruxelles-National
$757
Icelandair
May 24
BRU1:50 pmBrussels Bruxelles-National
30h 55m
1 stop
SEA11:45 amSeattle/Tacoma Intl
Jun 18
SEA11:25 pmSeattle/Tacoma Intl
28h 30m
1 stop
BRU12:55 pmBrussels Bruxelles-National
$758

Aer Lingus flights from Brussels Bruxelles-National Airport to Seattle

Our best Aer Lingus deals on Brussels Bruxelles-National Airport to Seattle flight tickets
Aer Lingus
Apr 30
BRU10:20 amBrussels Bruxelles-National
15h 50m
1 stop
SEA5:10 pmSeattle/Tacoma Intl
May 13
SEA7:10 pmSeattle/Tacoma Intl
16h 35m
1 stop
BRU8:45 pmBrussels Bruxelles-National
$598
Aer Lingus
Apr 30
BRU10:20 amBrussels Bruxelles-National
15h 50m
1 stop
SEA5:10 pmSeattle/Tacoma Intl
May 13
SEA7:10 pmSeattle/Tacoma Intl
16h 35m
1 stop
BRU8:45 pmBrussels Bruxelles-National
$636
Aer Lingus
Sep 2
BRU10:20 amBrussels Bruxelles-National
15h 50m
1 stop
SEA5:10 pmSeattle/Tacoma Intl
Sep 20
SEA7:10 pmSeattle/Tacoma Intl
16h 35m
1 stop
BRU8:45 pmBrussels Bruxelles-National
$797

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 March 9, 2026.
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

Cheapest round-trip

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Thu 4/30

10:20 am-5:10 pm

1 stop15h 50m

Seattle/Tacoma Intl

Wed 5/13

7:10 pm-8:45 pm

1 stop16h 35m

$598
Quickest round-trip

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Tue 4/21

10:00 am-5:10 pm

1 stop16h 10m

Seattle/Tacoma Intl

Tue 4/28

7:10 pm-5:25 pm

1 stop13h 15m

$633

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Thu 4/30

10:20 am-5:10 pm

1 stop15h 50m

Seattle/Tacoma Intl

Wed 5/13

7:10 pm-8:45 pm

1 stop16h 35m

$636

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Sat 4/18

7:25 pm-11:02 am

2 stops48h 37m

Seattle/Tacoma Intl

Sat 4/25

7:00 pm-12:55 pm

1 stop32h 55m

$650

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Thu 4/30

7:25 pm-9:40 am

2 stops47h 15m

Seattle/Tacoma Intl

Wed 5/13

7:00 pm-12:55 pm

1 stop32h 55m

$656

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Thu 4/30

7:25 pm-9:40 am

2 stops47h 15m

Seattle/Tacoma Intl

Wed 5/13

7:00 pm-12:55 pm

1 stop32h 55m

$659

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Thu 4/30

10:20 am-7:23 pm

2 stops42h 03m

Seattle/Tacoma Intl

Wed 5/13

7:00 pm-12:55 pm

1 stop32h 55m

$662

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Thu 4/30

8:50 am-10:19 am

2 stops34h 29m

Seattle/Tacoma Intl

Wed 5/13

7:00 pm-12:55 pm

1 stop32h 55m

$664

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Thu 4/30

10:20 am-7:23 pm

2 stops42h 03m

Seattle/Tacoma Intl

Wed 5/13

7:00 pm-12:55 pm

1 stop32h 55m

$683

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Wed 4/22

10:30 am-5:10 pm

1 stop15h 40m

Seattle/Tacoma Intl

Wed 4/29

7:10 pm-5:55 pm

1 stop13h 45m

$684

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 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 $597. If you don’t want to visit Seattle in December, then you should wait until April to fly from Brussels Bruxelles-National Airport, when ticket prices are also cheap, with an average price of $686.

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 $797 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 $653 on momondo.

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

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

Fastest flight time

12h 25m

Direct flights

None
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. There are no popular flight routes from Brussels Bruxelles-National Airport to Seattle.
Search flight deals

  • 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
United AirlinesPriceFrom $584Free CancellationRating
7.4
9,409 reviews
Search United Airlines flights
IcelandairPriceFrom $586Free CancellationRating
7.1
619 reviews
Search Icelandair flights
British AirwaysPriceFrom $592Free CancellationRating
6.7
7,781 reviews
Search British Airways flights
KLMPriceFrom $673Free CancellationRating
7.8
1,468 reviews
Search KLM flights
LufthansaPriceFrom $761Free CancellationRating
6.8
7,839 reviews
Search Lufthansa flights
DeltaPriceFrom $787Free CancellationRating
7.9
8,275 reviews
Search Delta flights

Traveling to a place near Seattle?

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

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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