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

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

What airlines fly to Seattle?

Lufthansa, British Airways and KLM 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 34% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 6 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

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 July 2026, there are 6 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.

$345 Cheap Flights from Brussels to Seattle in 2026

Q: 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 $801 to $1,016. The lowest price recently found on this route was $690.

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Brussels to Seattle

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:25 pm - 9:00 pm

BRU

SEA

32h 35m

3 stops

7:00 pm - 12:55 pm

SEA

BRU

32h 55m

1 stop

$690Multiple Airlines

Wed, Aug 26 - Tue, Sep 1

9:15 pm - 9:40 am

CRL

SEA

45h 25m

3 stops

3:40 pm - 10:55 pm

SEA

CRL

22h 15m

3 stops

$696Multiple Airlines

Mon, Sep 21 - Mon, Oct 5

10:20 am - 1:45 pm

BRU

SEA

12h 25m

1 stop

3:55 pm - 7:50 pm

SEA

BRU

18h 55m

1 stop

$714Scandinavian Airlines

Fri, Sep 4 - Fri, Sep 18

10:20 am - 1:45 pm

BRU

SEA

12h 25m

1 stop

3:55 pm - 2:35 pm

SEA

BRU

13h 40m

1 stop

$726Scandinavian Airlines

Fri, Sep 4 - Fri, Sep 18

10:20 am - 1:45 pm

BRU

SEA

12h 25m

1 stop

3:55 pm - 2:35 pm

SEA

BRU

13h 40m

1 stop

$729Scandinavian Airlines

Fri, Sep 4 - Fri, Sep 18

10:20 am - 1:45 pm

BRU

SEA

12h 25m

1 stop

3:55 pm - 7:50 pm

SEA

BRU

18h 55m

1 stop

$730Scandinavian Airlines

Fri, Sep 4 - Fri, Sep 18

10:20 am - 1:45 pm

BRU

SEA

12h 25m

1 stop

3:55 pm - 6:30 pm

SEA

BRU

17h 35m

1 stop

$734Scandinavian Airlines

Fri, Sep 4 - Sun, Sep 20

10:20 am - 1:45 pm

BRU

SEA

12h 25m

1 stop

3:55 pm - 2:35 pm

SEA

BRU

13h 40m

1 stop

$735Scandinavian Airlines

Tue, Sep 8 - Fri, Sep 18

11:20 am - 1:45 pm

BRU

SEA

35h 25m

2 stops

3:55 pm - 8:30 pm

SEA

BRU

19h 35m

2 stops

$737Scandinavian Airlines

Fri, Sep 4 - Sun, Sep 20

9:10 pm - 1:45 pm

BRU

SEA

49h 35m

2 stops

3:55 pm - 11:00 pm

SEA

BRU

22h 05m

1 stop

$739Scandinavian Airlines

Wed, Sep 16 - Sat, Sep 19

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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 4

BRU10:20 amBrussels Bruxelles-National

12h 25m

1 stop

SEA1:45 pmSeattle/Tacoma Intl

Sep 18

SEA3:55 pmSeattle/Tacoma Intl

18h 55m

1 stop

BRU7:50 pmBrussels Bruxelles-National

$714

Scandinavian Airlines

Sep 4

BRU10:20 amBrussels Bruxelles-National

12h 25m

1 stop

SEA1:45 pmSeattle/Tacoma Intl

Sep 18

SEA3:55 pmSeattle/Tacoma Intl

13h 40m

1 stop

BRU2:35 pmBrussels Bruxelles-National

$726

Scandinavian Airlines

Sep 4

BRU10:20 amBrussels Bruxelles-National

12h 25m

1 stop

SEA1:45 pmSeattle/Tacoma Intl

Sep 18

SEA3:55 pmSeattle/Tacoma Intl

13h 40m

1 stop

BRU2:35 pmBrussels Bruxelles-National

$729

Icelandair flights from Brussels to Seattle

Our best Icelandair deals on Brussels to Seattle flight tickets

Icelandair

Oct 2

BRU1:50 pmBrussels Bruxelles-National

13h 05m

1 stop

SEA5:55 pmSeattle/Tacoma Intl

Oct 16

SEA3:40 pmSeattle/Tacoma Intl

12h 15m

1 stop

BRU12:55 pmBrussels Bruxelles-National

$807

Icelandair

Sep 21

BRU1:50 pmBrussels Bruxelles-National

13h 05m

1 stop

SEA5:55 pmSeattle/Tacoma Intl

Oct 5

SEA7:00 pmSeattle/Tacoma Intl

32h 55m

1 stop

BRU12:55 pmBrussels Bruxelles-National

$831

Icelandair

Jul 25

BRU1:50 pmBrussels Bruxelles-National

30h 55m

1 stop

SEA11:45 amSeattle/Tacoma Intl

Aug 6

SEA11:25 pmSeattle/Tacoma Intl

28h 30m

1 stop

BRU12:55 pmBrussels Bruxelles-National

$866

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Wed 8/26

9:25 pm-9:00 pm

3 stops32h 35m

Seattle/Tacoma Intl

Tue 9/1

7:00 pm-12:55 pm

1 stop32h 55m

$690

BrusselsSeattle

CRL - SEA

CRLSEA

Charleroi Brussels

Mon 9/21

9:15 pm-9:40 am

3 stops45h 25m

Seattle/Tacoma Intl

Mon 10/5

3:40 pm-10:55 pm

3 stops22h 15m

$696

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Fri 9/4

10:20 am-1:45 pm

1 stop12h 25m

Seattle/Tacoma Intl

Fri 9/18

3:55 pm-7:50 pm

1 stop18h 55m

$714

Quickest round-trip

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Fri 9/4

10:20 am-1:45 pm

1 stop12h 25m

Seattle/Tacoma Intl

Fri 9/18

3:55 pm-2:35 pm

1 stop13h 40m

$726

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Fri 9/4

10:20 am-1:45 pm

1 stop12h 25m

Seattle/Tacoma Intl

Fri 9/18

3:55 pm-2:35 pm

1 stop13h 40m

$729

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Fri 9/4

10:20 am-1:45 pm

1 stop12h 25m

Seattle/Tacoma Intl

Fri 9/18

3:55 pm-7:50 pm

1 stop18h 55m

$730

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Fri 9/4

10:20 am-1:45 pm

1 stop12h 25m

Seattle/Tacoma Intl

Sun 9/20

3:55 pm-6:30 pm

1 stop17h 35m

$734

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Tue 9/8

10:20 am-1:45 pm

1 stop12h 25m

Seattle/Tacoma Intl

Fri 9/18

3:55 pm-2:35 pm

1 stop13h 40m

$735

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Fri 9/4

11:20 am-1:45 pm

2 stops35h 25m

Seattle/Tacoma Intl

Sun 9/20

3:55 pm-8:30 pm

2 stops19h 35m

$737

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Wed 9/16

9:10 pm-1:45 pm

2 stops49h 35m

Seattle/Tacoma Intl

Sat 9/19

3:55 pm-11:00 pm

1 stop22h 05m

$739

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?

What is the cheapest month to fly to Seattle?

In general, January 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 $452. If you don’t want to visit Seattle in January, then you should wait until August to fly from Brussels, when ticket prices are also cheap, with an average price of $495.

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 $874 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 $690 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

Fastest flight time	12h 25m
Direct flights	None

The fastest flight from Brussels to Seattle takes 12h 25m

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 12h 25m.
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 July 2026, there are 6 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
Icelandair	PriceFrom $529	Free Cancellation	Rating 7.0 707 reviews	Search Icelandair flights
United Airlines	PriceFrom $584	Free Cancellation	Rating 7.4 9,989 reviews	Search United Airlines flights
British Airways	PriceFrom $586	Free Cancellation	Rating 6.7 8,115 reviews	Search British Airways flights
KLM	PriceFrom $676	Free Cancellation	Rating 7.8 1,539 reviews	Search KLM flights
Scandinavian Airlines	PriceFrom $711	Free Cancellation	Rating 7.4 1,879 reviews	Search Scandinavian Airlines flights
Lufthansa	PriceFrom $823	Free Cancellation	Rating 6.8 8,137 reviews	Search Lufthansa flights

Tacoma

Leavenworth

SeaTac

Ocean Shores

Renton

Olympia

Lynnwood

Redmond

Kent

Lakewood

Puyallup

Tukwila

Fife

Federal Way

Cle Elum

Marysville

Centralia

Kirkland

Shoreline

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. 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.