What airlines fly to Seattle?

British Airways, Icelandair and Delta are the top three most popular airlines that fly to Seattle from Brussels according to our data. British Airways is the first choice among our users, with 32% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 7 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 American Airlines 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 October 2025, there are 7 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.

$377 Cheap Flights from Brussels to Seattle in 2025/26

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 $700 to $941. The lowest price recently found on this route was $614.

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Find the cheapest flights from Brussels to Seattle

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

10:15 am - 6:20 pmBRU-SEA

17h 05m1 stop

8:05 pm - 6:15 pmSEA-BRU

13h 10m1 stop

$614Aer Lingus

Find Deal

Mon, Nov 24 - Mon, Dec 8

10:15 am - 6:20 pmBRU-SEA

17h 05m1 stop

8:05 pm - 6:15 pmSEA-BRU

13h 10m1 stop

$621Aer Lingus

Find Deal

Mon, Nov 24 - Mon, Dec 8

10:00 am - 7:16 pmBRU-SEA

18h 16m2 stops

7:00 am - 8:55 amSEA-BRU

16h 55m1 stop

$738Lufthansa

Find Deal

Mon, Nov 24 - Mon, Dec 8

7:00 am - 12:10 pmBRU-SEA

14h 10m1 stop

7:00 am - 8:55 amSEA-BRU

16h 55m1 stop

$743Lufthansa

Find Deal

Mon, Nov 24 - Mon, Dec 8

10:50 am - 6:20 pmBRU-SEA

16h 30m1 stop

11:51 am - 2:05 pmSEA-BRU

17h 14m2 stops

$748British Airways

Find Deal

Thu, Apr 9 - Wed, Apr 22

10:15 am - 4:55 pmBRU-SEA

15h 40m1 stop

1:35 pm - 3:25 pmSEA-BRU

16h 50m1 stop

$749British Airways

Find Deal

Thu, Nov 13 - Fri, Nov 28

1:50 pm - 5:50 pmBRU-SEA

13h 00m1 stop

3:45 pm - 12:50 pmSEA-BRU

12h 05m1 stop

$772Icelandair

Find Deal

Sun, Apr 5 - Sat, Apr 11

1:50 pm - 5:50 pmBRU-SEA

13h 00m1 stop

3:45 pm - 12:50 pmSEA-BRU

12h 05m1 stop

$773Icelandair

Find Deal

Sun, Apr 5 - Sat, Apr 11

7:00 am - 12:10 pmBRU-SEA

14h 10m1 stop

7:00 am - 8:05 amSEA-BRU

16h 05m1 stop

$774United Airlines

Find Deal

Mon, Nov 24 - Mon, Dec 8

7:00 am - 12:10 pmBRU-SEA

14h 10m1 stop

10:40 am - 1:15 pmSEA-BRU

17h 35m2 stops

$776United Airlines

Find Deal

Mon, Nov 24 - Mon, Dec 8

Aer Lingus flights from Brussels to Seattle

Our best Aer Lingus deals on Brussels to Seattle flight tickets

Aer Lingus

Nov 24

BRU10:15 amBrussels Bruxelles-National

17h 05m

1 stop

SEA6:20 pmSeattle/Tacoma Intl

Dec 8

SEA8:05 pmSeattle/Tacoma Intl

13h 10m

1 stop

BRU6:15 pmBrussels Bruxelles-National

$614

Find similar

Aer Lingus

Nov 24

BRU10:15 amBrussels Bruxelles-National

17h 05m

1 stop

SEA6:20 pmSeattle/Tacoma Intl

Dec 8

SEA8:05 pmSeattle/Tacoma Intl

13h 10m

1 stop

BRU6:15 pmBrussels Bruxelles-National

$621

Find similar

Aer Lingus

Nov 10

BRU10:15 amBrussels Bruxelles-National

17h 05m

1 stop

SEA6:20 pmSeattle/Tacoma Intl

Nov 17

SEA8:05 pmSeattle/Tacoma Intl

13h 10m

1 stop

BRU6:15 pmBrussels Bruxelles-National

$657

Find similar

Scandinavian Airlines flights from Brussels to Seattle

Our best Scandinavian Airlines deals on Brussels to Seattle flight tickets

Scandinavian Airlines

Nov 24

BRU10:20 amBrussels Bruxelles-National

21h 39m

2 stops

SEA10:59 pmSeattle/Tacoma Intl

Dec 8

SEA2:05 pmSeattle/Tacoma Intl

20h 45m

2 stops

BRU7:50 pmBrussels Bruxelles-National

$713

Find similar

Scandinavian Airlines

Nov 10

BRU10:20 amBrussels Bruxelles-National

20h 40m

2 stops

SEA10:00 pmSeattle/Tacoma Intl

Nov 17

SEA2:11 pmSeattle/Tacoma Intl

39h 19m

2 stops

BRU2:30 pmBrussels Bruxelles-National

$714

Find similar

Scandinavian Airlines

Nov 24

BRU10:20 amBrussels Bruxelles-National

21h 39m

2 stops

SEA10:59 pmSeattle/Tacoma Intl

Dec 8

SEA2:05 pmSeattle/Tacoma Intl

20h 45m

2 stops

BRU7:50 pmBrussels Bruxelles-National

$717

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Mon 11/24

10:15 am-6:20 pm

1 stop17h 05m

Seattle/Tacoma Intl

Mon 12/8

8:05 pm-6:15 pm

1 stop13h 10m

$614

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Mon 11/24

10:15 am-6:20 pm

1 stop17h 05m

Seattle/Tacoma Intl

Mon 12/8

8:05 pm-6:15 pm

1 stop13h 10m

$621

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Mon 11/24

10:00 am-7:16 pm

2 stops18h 16m

Seattle/Tacoma Intl

Mon 12/8

7:00 am-8:55 am

1 stop16h 55m

$738

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Mon 11/24

7:00 am-12:10 pm

1 stop14h 10m

Seattle/Tacoma Intl

Mon 12/8

7:00 am-8:55 am

1 stop16h 55m

$743

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Thu 4/9

10:50 am-6:20 pm

1 stop16h 30m

Seattle/Tacoma Intl

Wed 4/22

11:51 am-2:05 pm

2 stops17h 14m

$748

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Thu 11/13

10:15 am-4:55 pm

1 stop15h 40m

Seattle/Tacoma Intl

Fri 11/28

1:35 pm-3:25 pm

1 stop16h 50m

$749

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Sun 4/5

1:50 pm-5:50 pm

1 stop13h 00m

Seattle/Tacoma Intl

Sat 4/11

3:45 pm-12:50 pm

1 stop12h 05m

$772

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Sun 4/5

1:50 pm-5:50 pm

1 stop13h 00m

Seattle/Tacoma Intl

Sat 4/11

3:45 pm-12:50 pm

1 stop12h 05m

$773

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Mon 11/24

7:00 am-12:10 pm

1 stop14h 10m

Seattle/Tacoma Intl

Mon 12/8

7:00 am-8:05 am

1 stop16h 05m

$774

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Mon 11/24

7:00 am-12:10 pm

1 stop14h 10m

Seattle/Tacoma Intl

Mon 12/8

10:40 am-1:15 pm

2 stops17h 35m

$776

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, December 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 $620. If you don’t want to visit Seattle in December, then you should wait until January to fly from Brussels, 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 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 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 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 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 for as low as $645 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

Direct flights	None

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

Search flight deals

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 13h 00m.
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 October 2025, there are 7 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 $586	Free Cancellation	Rating 7.0 556 reviews	Search Icelandair flights
British Airways	PriceFrom $592	Free Cancellation	Rating 6.7 7,456 reviews	Search British Airways flights
United Airlines	PriceFrom $597	Free Cancellation	Rating 7.4 8,976 reviews	Search United Airlines flights
KLM	PriceFrom $605	Free Cancellation	Rating 7.7 1,402 reviews	Search KLM flights
Delta	PriceFrom $616	Free Cancellation	Rating 7.9 7,975 reviews	Search Delta flights
Finnair	PriceFrom $651	Free Cancellation	Rating 7.6 1,332 reviews	Search Finnair flights
Lufthansa	PriceFrom $674	Free Cancellation	Rating 6.8 7,489 reviews	Search Lufthansa flights

Tacoma

Leavenworth

SeaTac

Ocean Shores

Renton

Olympia

Lynnwood

Kent

Marysville

Puyallup

Federal Way

Tukwila

Kirkland

Fife

Centralia

Lakewood

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. 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.