What airlines fly to Seattle?

Lufthansa, KLM and United Airlines are the top three most popular airlines that fly to Seattle from Brussels according to our data. Lufthansa is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 4 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Brussels to Seattle/Tacoma Intl?

British Airways and Iberia are the most popular carriers operating from Brussels to Seattle/Tacoma Intl

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 August 2026, there are 4 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.

$391 Cheap Flights from Brussels to Seattle in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Brussels to Seattle

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:30 pm - 1:45 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

27h 15m3 stops Riga Intl Stockholm Arlanda Kastrup Copenhagen

7:00 pm - 12:55 pmSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

32h 55m1 stop Reykjavik Keflavik Intl

$739Multiple Airlines

Fri, Oct 9 - Fri, Oct 16

7:30 pm - 1:45 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

27h 15m3 stops Riga Intl Stockholm Arlanda Kastrup Copenhagen

7:00 pm - 12:55 pmSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

32h 55m1 stop Reykjavik Keflavik Intl

$741Multiple Airlines

Fri, Oct 9 - Fri, Oct 16

7:10 pm - 8:40 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

34h 30m3 stops Kastrup Copenhagen Oslo Gardermoen Reykjavik Keflavik Intl

3:35 pm - 7:50 pmSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

20h 15m3 stops Reykjavik Keflavik Intl Oslo Gardermoen Kastrup Copenhagen

$742Multiple Airlines

Thu, Oct 15 - Wed, Oct 28

10:20 am - 1:45 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

12h 25m1 stop Kastrup Copenhagen

3:55 pm - 6:30 pmSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

17h 35m1 stop Kastrup Copenhagen

$792Scandinavian Airlines

Sun, Sep 27 - Sun, Oct 11

10:20 am - 1:45 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

12h 25m1 stop Kastrup Copenhagen

3:55 pm - 10:40 amSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

33h 45m2 stops Kastrup Copenhagen Oslo Gardermoen

$798Scandinavian Airlines

Fri, Sep 25 - Sun, Oct 11

10:20 am - 1:45 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

12h 25m1 stop Kastrup Copenhagen

3:55 pm - 6:15 pmSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

17h 20m2 stops Kastrup Copenhagen Stockholm Arlanda

$806Scandinavian Airlines

Sun, Sep 27 - Sun, Oct 11

8:30 am - 11:55 amBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

12h 25m1 stop Frankfurt am Main

8:25 am - 7:15 amSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

13h 50m1 stop Washington, D.C. Dulles Intl

$892Lufthansa

Wed, Sep 16 - Sat, Sep 26

8:30 am - 11:55 amBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

12h 25m1 stop Frankfurt am Main

6:50 pm - 4:15 pmSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

12h 25m1 stop Munich Franz Josef Strauss

$892Lufthansa

Wed, Sep 16 - Sat, Sep 26

6:20 am - 11:55 amBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

14h 35m1 stop Frankfurt am Main

12:43 pm - 1:15 pmSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

15h 32m2 stops Denver Intl London Heathrow

$920United Airlines

Fri, Sep 25 - Fri, Oct 2

6:20 am - 11:55 amBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

14h 35m1 stop Frankfurt am Main

7:00 am - 9:00 amSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

17h 00m1 stop Chicago O'Hare Intl

$921United Airlines

Fri, Sep 25 - Fri, Oct 2

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Scandinavian Airlines flights from Brussels to Seattle

Our best Scandinavian Airlines deals on Brussels to Seattle flight tickets

Scandinavian Airlines

Sep 27

BRU10:20 amBrussels Bruxelles-National

12h 25m

1 stop

SEA1:45 pmSeattle/Tacoma Intl

Oct 11

SEA3:55 pmSeattle/Tacoma Intl

17h 35m

1 stop

BRU6:30 pmBrussels Bruxelles-National

$792

Scandinavian Airlines

Sep 27

BRU10:20 amBrussels Bruxelles-National

12h 25m

1 stop

SEA1:45 pmSeattle/Tacoma Intl

Oct 11

SEA3:55 pmSeattle/Tacoma Intl

17h 20m

2 stops

BRU6:15 pmBrussels Bruxelles-National

$806

Scandinavian Airlines

Sep 26

BRU8:30 pmBrussels Bruxelles-National

26h 15m

1 stop

SEA1:45 pmSeattle/Tacoma Intl

Oct 3

SEA3:55 pmSeattle/Tacoma Intl

19h 45m

2 stops

BRU8:40 pmBrussels Bruxelles-National

$855

British Airways flights from Brussels to Seattle

Our best British Airways deals on Brussels to Seattle flight tickets

British Airways

Oct 15

BRU10:50 amBrussels Bruxelles-National

18h 25m

2 stops

SEA8:15 pmSeattle/Tacoma Intl

Oct 28

SEA7:45 pmSeattle/Tacoma Intl

16h 25m

1 stop

BRU8:10 pmBrussels Bruxelles-National

$837

British Airways

Oct 15

BRU10:50 amBrussels Bruxelles-National

18h 25m

2 stops

SEA8:15 pmSeattle/Tacoma Intl

Oct 28

SEA2:26 pmSeattle/Tacoma Intl

17h 54m

2 stops

BRU4:20 pmBrussels Bruxelles-National

$839

British Airways

Oct 15

BRU9:15 pmBrussels Bruxelles-National

23h 20m

1 stop

SEA11:35 amSeattle/Tacoma Intl

Oct 28

SEA7:45 pmSeattle/Tacoma Intl

16h 25m

1 stop

BRU8:10 pmBrussels Bruxelles-National

$843

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BrusselsSeattle

BRU Brussels Bruxelles-National - SEA Seattle/Tacoma Intl

BRUSEA

Brussels Bruxelles-National

Fri 10/9

7:30 pm-1:45 pm

3 stops27h 15m

Seattle/Tacoma Intl

Fri 10/16

7:00 pm-12:55 pm

1 stop32h 55m

$739

BrusselsSeattle

BRU Brussels Bruxelles-National - SEA Seattle/Tacoma Intl

BRUSEA

Brussels Bruxelles-National

Fri 10/9

7:30 pm-1:45 pm

3 stops27h 15m

Seattle/Tacoma Intl

Fri 10/16

7:00 pm-12:55 pm

1 stop32h 55m

$741

BrusselsSeattle

BRU Brussels Bruxelles-National - SEA Seattle/Tacoma Intl

BRUSEA

Brussels Bruxelles-National

Thu 10/15

7:10 pm-8:40 pm

3 stops34h 30m

Seattle/Tacoma Intl

Wed 10/28

3:35 pm-7:50 pm

3 stops20h 15m

$742

BrusselsSeattle

BRU Brussels Bruxelles-National - SEA Seattle/Tacoma Intl

BRUSEA

Brussels Bruxelles-National

Sun 9/27

10:20 am-1:45 pm

1 stop12h 25m

Seattle/Tacoma Intl

Sun 10/11

3:55 pm-6:30 pm

1 stop17h 35m

$792

BrusselsSeattle

BRU Brussels Bruxelles-National - SEA Seattle/Tacoma Intl

BRUSEA

Brussels Bruxelles-National

Fri 9/25

10:20 am-1:45 pm

1 stop12h 25m

Seattle/Tacoma Intl

Sun 10/11

3:55 pm-10:40 am

2 stops33h 45m

$798

BrusselsSeattle

BRU Brussels Bruxelles-National - SEA Seattle/Tacoma Intl

BRUSEA

Brussels Bruxelles-National

Sun 9/27

10:20 am-1:45 pm

1 stop12h 25m

Seattle/Tacoma Intl

Sun 10/11

3:55 pm-6:15 pm

2 stops17h 20m

$806

BrusselsSeattle

BRU Brussels Bruxelles-National - SEA Seattle/Tacoma Intl

BRUSEA

Brussels Bruxelles-National

Wed 9/16

8:30 am-11:55 am

1 stop12h 25m

Seattle/Tacoma Intl

Sat 9/26

8:25 am-7:15 am

1 stop13h 50m

$892

Quickest round-trip

BrusselsSeattle

BRU Brussels Bruxelles-National - SEA Seattle/Tacoma Intl

BRUSEA

Brussels Bruxelles-National

Wed 9/16

8:30 am-11:55 am

1 stop12h 25m

Seattle/Tacoma Intl

Sat 9/26

6:50 pm-4:15 pm

1 stop12h 25m

$892

BrusselsSeattle

BRU Brussels Bruxelles-National - SEA Seattle/Tacoma Intl

BRUSEA

Brussels Bruxelles-National

Fri 9/25

6:20 am-11:55 am

1 stop14h 35m

Seattle/Tacoma Intl

Fri 10/2

12:43 pm-1:15 pm

2 stops15h 32m

$920

BrusselsSeattle

BRU Brussels Bruxelles-National - SEA Seattle/Tacoma Intl

BRUSEA

Brussels Bruxelles-National

Fri 9/25

6:20 am-11:55 am

1 stop14h 35m

Seattle/Tacoma Intl

Fri 10/2

7:00 am-9:00 am

1 stop17h 00m

$921

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

What is the typical price of a round-trip flight between Brussels and Seattle?

Prices are currently low for flights on this route.

Typical prices usually range from $831 to $907.
The lowest price recently found on this route was $710.

What is the cheapest month to fly to Seattle?

In general, May 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 $781. If you don’t want to visit Seattle in May, then you should wait until December to fly from Brussels, when ticket prices are also cheap, with an average price of $790.

How far in advance should I book a flight from Brussels to Seattle?

You are more likely to see cheaper flights to Seattle from Brussels when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $944 when searching 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 $768 on momondo.

Cheap Brussels to Seattle flight deals and tips

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

Best Price Found	$391
Fastest flight time	16h 10m
Direct flights	None

The best one-way flight to Seattle from Brussels in the past 72 hours is $391. The best round-trip flight deal from Brussels to Seattle found on momondo in the last 72 hours is $739.

The fastest flight from Brussels to Seattle takes 16h 10m

There are no direct flights from Brussels to Seattle. There are no popular flight routes from Brussels to Seattle.

Search flight deals

Frequently asked questions about flying 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 16h 10m.
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 August 2026, there are 4 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
United Airlines	PriceFrom $584	Free Cancellation	Rating 7.4 10,139 reviews	Search United Airlines flights
KLM	PriceFrom $676	Free Cancellation	Rating 7.8 1,568 reviews	Search KLM flights
Scandinavian Airlines	PriceFrom $711	Free Cancellation	Rating 7.4 1,967 reviews	Search Scandinavian Airlines flights
Lufthansa	PriceFrom $823	Free Cancellation	Rating 6.8 8,227 reviews	Search Lufthansa flights

Tacoma

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SeaTac

Ocean Shores

Renton

Kent

Olympia

Redmond

Lakewood

Federal Way

Fife

Tukwila

Puyallup

Lynnwood

Cle Elum

Marysville

Kirkland

Centralia

Lacey

Shoreline

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. 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.