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Cheap flights from Brussels Bruxelles-National Airport to Seattle from $458

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 11/20. 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

Enter your travel dates to find the best prices.
Aer Lingus Logo
10:15 am - 6:20 pmBRU-SEA
17h 05m1 stop
Aer Lingus Logo
8:05 pm - 6:15 pmSEA-BRU
13h 10m1 stop
$594Aer Lingus
Find Deal
lun., nov. 24 - lun., dic. 8
Icelandair Logo
12:50 pm - 5:00 pmBRU-SEA
13h 10m1 stop
Icelandair Logo
2:35 pm - 11:55 amSEA-BRU
12h 20m1 stop
$716Icelandair
Find Deal
jue., nov. 6 - mié., nov. 19
Lufthansa Logo
10:00 am - 7:16 pmBRU-SEA
18h 16m2 stops
Lufthansa Logo
7:00 am - 8:55 amSEA-BRU
16h 55m1 stop
$740Lufthansa
Find Deal
jue., nov. 6 - mié., nov. 19
Lufthansa Logo
10:00 am - 7:16 pmBRU-SEA
18h 16m2 stops
Lufthansa Logo
7:00 am - 8:55 amSEA-BRU
16h 55m1 stop
$743Lufthansa
Find Deal
lun., nov. 24 - lun., dic. 8
British Airways Logo
10:15 am - 4:55 pmBRU-SEA
15h 40m1 stop
British Airways Logo
1:35 pm - 1:40 pmSEA-BRU
15h 05m1 stop
$754British Airways
Find Deal
jue., nov. 13 - sáb., nov. 29
British Airways Logo
8:35 pm - 11:30 amBRU-SEA
23h 55m1 stop
British Airways Logo
2:46 pm - 3:25 pmSEA-BRU
15h 39m2 stops
$755British Airways
Find Deal
jue., nov. 13 - vie., nov. 28
Delta Logo
6:15 am - 8:50 pmBRU-SEA
23h 35m2 stops
Delta Logo
9:59 pm - 9:00 amSEA-BRU
26h 01m1 stop
$786Delta
Find Deal
sáb., nov. 29 - sáb., dic. 6
Delta Logo
8:00 am - 8:50 pmBRU-SEA
21h 50m2 stops
Delta Logo
7:30 am - 2:35 pmSEA-BRU
22h 05m2 stops
$788Delta
Find Deal
dom., abr. 5 - sáb., abr. 11
KLM Logo
8:05 am - 11:50 amBRU-SEA
12h 45m1 stop
KLM Logo
3:05 pm - 2:15 pmSEA-BRU
14h 10m1 stop
$869KLM
Find Deal
vie., dic. 19 - mar., dic. 30
KLM Logo
8:05 am - 11:50 amBRU-SEA
12h 45m1 stop
KLM Logo
3:05 pm - 2:15 pmSEA-BRU
14h 10m1 stop
$872KLM
Find Deal
jue., dic. 18 - lun., dic. 29

British Airways flights from Brussels Bruxelles-National Airport to Seattle

Our best British Airways deals on Brussels Bruxelles-National Airport to Seattle flight tickets
British Airways
Nov 13
BRU10:15 amBrussels Bruxelles-National
15h 40m
1 stop
SEA4:55 pmSeattle/Tacoma Intl
Nov 29
SEA1:35 pmSeattle/Tacoma Intl
15h 05m
1 stop
BRU1:40 pmBrussels Bruxelles-National
$754
Find similar
British Airways
Nov 13
BRU8:35 pmBrussels Bruxelles-National
23h 55m
1 stop
SEA11:30 amSeattle/Tacoma Intl
Nov 28
SEA2:46 pmSeattle/Tacoma Intl
15h 39m
2 stops
BRU3:25 pmBrussels Bruxelles-National
$755
Find similar
British Airways
Nov 14
BRU9:20 pmBrussels Bruxelles-National
23h 10m
1 stop
SEA11:30 amSeattle/Tacoma Intl
Nov 28
SEA2:46 pmSeattle/Tacoma Intl
15h 39m
2 stops
BRU3:25 pmBrussels Bruxelles-National
$757
Find similar

American Airlines flights from Brussels Bruxelles-National Airport to Seattle

Our best American Airlines deals on Brussels Bruxelles-National Airport to Seattle flight tickets
American Airlines
Nov 10
BRU5:30 pmBrussels Bruxelles-National
27h 00m
1 stop
SEA11:30 amSeattle/Tacoma Intl
Nov 24
SEA6:50 pmSeattle/Tacoma Intl
33h 45m
1 stop
BRU1:35 pmBrussels Bruxelles-National
$752
Find similar
American Airlines
Nov 10
BRU11:50 amBrussels Bruxelles-National
20h 28m
2 stops
SEA11:18 pmSeattle/Tacoma Intl
Nov 24
SEA2:19 pmSeattle/Tacoma Intl
21h 41m
2 stops
BRU9:00 pmBrussels Bruxelles-National
$758
Find similar
American Airlines
Nov 13
BRU10:15 amBrussels Bruxelles-National
22h 03m
2 stops
SEA11:18 pmSeattle/Tacoma Intl
Nov 28
SEA11:42 amSeattle/Tacoma Intl
18h 43m
2 stops
BRU3:25 pmBrussels Bruxelles-National
$769
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 octubre 16, 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

lun. 11/24

10:15 am-6:20 pm

1 stop17h 05m

Seattle/Tacoma Intl

lun. 12/8

8:05 pm-6:15 pm

1 stop13h 10m

$594

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

jue. 11/6

12:50 pm-5:00 pm

1 stop13h 10m

Seattle/Tacoma Intl

mié. 11/19

2:35 pm-11:55 am

1 stop12h 20m

$716

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

jue. 11/6

10:00 am-7:16 pm

2 stops18h 16m

Seattle/Tacoma Intl

mié. 11/19

7:00 am-8:55 am

1 stop16h 55m

$740

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

lun. 11/24

10:00 am-7:16 pm

2 stops18h 16m

Seattle/Tacoma Intl

lun. 12/8

7:00 am-8:55 am

1 stop16h 55m

$743

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

jue. 11/13

10:15 am-4:55 pm

1 stop15h 40m

Seattle/Tacoma Intl

sáb. 11/29

1:35 pm-1:40 pm

1 stop15h 05m

$754

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

jue. 11/13

8:35 pm-11:30 am

1 stop23h 55m

Seattle/Tacoma Intl

vie. 11/28

2:46 pm-3:25 pm

2 stops15h 39m

$755

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

sáb. 11/29

6:15 am-8:50 pm

2 stops23h 35m

Seattle/Tacoma Intl

sáb. 12/6

9:59 pm-9:00 am

1 stop26h 01m

$786

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

dom. 4/5

8:00 am-8:50 pm

2 stops21h 50m

Seattle/Tacoma Intl

sáb. 4/11

7:30 am-2:35 pm

2 stops22h 05m

$788

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

vie. 12/19

8:05 am-11:50 am

1 stop12h 45m

Seattle/Tacoma Intl

mar. 12/30

3:05 pm-2:15 pm

1 stop14h 10m

$869

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

jue. 12/18

8:05 am-11:50 am

1 stop12h 45m

Seattle/Tacoma Intl

lun. 12/29

3:05 pm-2:15 pm

1 stop14h 10m

$872

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 $620. 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 $624.

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 $708 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 October 2025, prices for Brussels Bruxelles-National Airport to Seattle flights are approximately 30% 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.
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 45m.

  • 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
IcelandairPriceFrom $586Free CancellationRating
7.0
556 reviews
Search Icelandair flights
British AirwaysPriceFrom $592Free CancellationRating
6.7
7,457 reviews
Search British Airways flights
United AirlinesPriceFrom $597Free CancellationRating
7.4
8,982 reviews
Search United Airlines flights
KLMPriceFrom $605Free CancellationRating
7.7
1,404 reviews
Search KLM flights
DeltaPriceFrom $616Free CancellationRating
7.9
7,978 reviews
Search Delta flights
FinnairPriceFrom $651Free CancellationRating
7.6
1,332 reviews
Search Finnair flights
LufthansaPriceFrom $674Free CancellationRating
6.8
7,497 reviews
Search Lufthansa 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
Marysville
Puyallup
Federal Way
Tukwila
Lakewood
Kirkland
Fife
Centralia
Shoreline
Cle Elum
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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