What airlines fly to Seattle?

Icelandair, Lufthansa and British Airways are the top three most popular airlines that fly to Seattle from Belgium according to our data. Icelandair 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 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 Belgium to Seattle/Tacoma Intl Airport?

Prices for flights from Belgium to Seattle/Tacoma Intl Airport are updated daily.

How many operators does momondo search for flights from Belgium to Seattle/Tacoma Intl Airport?

The number of operators available for flights from Belgium to Seattle/Tacoma Intl Airport is 6 as of May 2026.

How old do you have to be to fly from Belgium to Seattle/Tacoma Intl Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Belgium to Seattle/Tacoma Intl Airport.

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

The travel and health documents you'll need for your trip to Seattle/Tacoma Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$394 Cheap Flights from Belgium to Seattle in 2026

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Belgium to Seattle

Round-trip

One-way

Recent round-trip flight deals from Belgium to Seattle

Enter your travel dates to find the best prices.

10:30 am - 5:10 pm

BRU

SEA

15h 40m

1 stop

7:10 pm - 5:55 pm

SEA

BRU

13h 45m

1 stop

$724Multiple Airlines

Wed, Jun 17 - Wed, Jun 24

10:20 am - 5:10 pm

BRU

SEA

15h 50m

1 stop

7:10 pm - 5:55 pm

SEA

BRU

13h 45m

1 stop

$737Multiple Airlines

Thu, May 21 - Wed, Jun 3

10:20 am - 5:10 pm

BRU

SEA

15h 50m

1 stop

7:10 pm - 8:45 pm

SEA

BRU

16h 35m

1 stop

$743Aer Lingus

Sun, May 17 - Tue, Jun 2

9:10 pm - 1:45 pm

BRU

SEA

25h 35m

2 stops

3:55 pm - 6:20 pm

SEA

BRU

17h 25m

2 stops

$771Scandinavian Airlines

Mon, Jun 1 - Sat, Jun 6

6:35 am - 4:00 pm

CRL

SEA

18h 25m

2 stops

5:40 pm - 8:40 pm

SEA

CRL

18h 00m

2 stops

$775Multiple Airlines

Thu, May 21 - Wed, Jun 3

10:20 am - 5:10 pm

BRU

SEA

15h 50m

1 stop

7:10 pm - 8:45 pm

SEA

BRU

16h 35m

1 stop

$776Aer Lingus

Thu, May 21 - Wed, Jun 3

3:15 pm - 1:45 pm

BRU

SEA

31h 30m

1 stop

3:55 pm - 7:50 pm

SEA

BRU

18h 55m

1 stop

$792Scandinavian Airlines

Sat, Sep 12 - Sat, Sep 19

8:30 pm - 1:45 pm

BRU

SEA

26h 15m

1 stop

3:55 pm - 7:50 pm

SEA

BRU

18h 55m

1 stop

$794Scandinavian Airlines

Sat, Sep 12 - Sat, Sep 19

3:15 pm - 1:45 pm

BRU

SEA

31h 30m

1 stop

3:55 pm - 7:50 pm

SEA

BRU

18h 55m

1 stop

$795Scandinavian Airlines

Sat, Sep 12 - Sat, Sep 19

10:20 am - 5:10 pm

BRU

SEA

15h 50m

1 stop

7:10 pm - 8:45 pm

SEA

BRU

16h 35m

1 stop

$802Aer Lingus

Fri, Jun 12 - Tue, Jun 16

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Scandinavian Airlines flights from Belgium to Seattle

Our best Scandinavian Airlines deals on Belgium to Seattle flight tickets

Scandinavian Airlines

Jun 1

BRU9:10 pmBrussels Bruxelles-National

25h 35m

2 stops

SEA1:45 pmSeattle/Tacoma Intl

Jun 6

SEA3:55 pmSeattle/Tacoma Intl

17h 25m

2 stops

BRU6:20 pmBrussels Bruxelles-National

$771

Scandinavian Airlines

Sep 12

BRU3:15 pmBrussels Bruxelles-National

31h 30m

1 stop

SEA1:45 pmSeattle/Tacoma Intl

Sep 19

SEA3:55 pmSeattle/Tacoma Intl

18h 55m

1 stop

BRU7:50 pmBrussels Bruxelles-National

$792

Scandinavian Airlines

Sep 12

BRU8:30 pmBrussels Bruxelles-National

26h 15m

1 stop

SEA1:45 pmSeattle/Tacoma Intl

Sep 19

SEA3:55 pmSeattle/Tacoma Intl

18h 55m

1 stop

BRU7:50 pmBrussels Bruxelles-National

$794

Icelandair flights from Belgium to Seattle

Our best Icelandair deals on Belgium to Seattle flight tickets

Icelandair

Jul 8

BRU1:50 pmBrussels Bruxelles-National

15h 50m

1 stop

SEA8:40 pmSeattle/Tacoma Intl

Jul 25

SEA7:00 pmSeattle/Tacoma Intl

32h 55m

1 stop

BRU12:55 pmBrussels Bruxelles-National

$830

Icelandair

Jun 23

BRU1:50 pmBrussels Bruxelles-National

15h 50m

1 stop

SEA8:40 pmSeattle/Tacoma Intl

Jun 27

SEA11:25 pmSeattle/Tacoma Intl

28h 30m

1 stop

BRU12:55 pmBrussels Bruxelles-National

$832

Icelandair

Jun 22

BRU1:50 pmBrussels Bruxelles-National

15h 50m

1 stop

SEA8:40 pmSeattle/Tacoma Intl

Jun 27

SEA11:25 pmSeattle/Tacoma Intl

28h 30m

1 stop

BRU12:55 pmBrussels Bruxelles-National

$833

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Wed 6/17

10:30 am-5:10 pm

1 stop15h 40m

Seattle/Tacoma Intl

Wed 6/24

7:10 pm-5:55 pm

1 stop13h 45m

$724

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Thu 5/21

10:20 am-5:10 pm

1 stop15h 50m

Seattle/Tacoma Intl

Wed 6/3

7:10 pm-5:55 pm

1 stop13h 45m

$737

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Sun 5/17

10:20 am-5:10 pm

1 stop15h 50m

Seattle/Tacoma Intl

Tue 6/2

7:10 pm-8:45 pm

1 stop16h 35m

$743

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Mon 6/1

9:10 pm-1:45 pm

2 stops25h 35m

Seattle/Tacoma Intl

Sat 6/6

3:55 pm-6:20 pm

2 stops17h 25m

$771

BrusselsSeattle

CRL - SEA

CRLSEA

Charleroi Brussels

Thu 5/21

6:35 am-4:00 pm

2 stops18h 25m

Seattle/Tacoma Intl

Wed 6/3

5:40 pm-8:40 pm

2 stops18h 00m

$775

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Thu 5/21

10:20 am-5:10 pm

1 stop15h 50m

Seattle/Tacoma Intl

Wed 6/3

7:10 pm-8:45 pm

1 stop16h 35m

$776

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Sat 9/12

3:15 pm-1:45 pm

1 stop31h 30m

Seattle/Tacoma Intl

Sat 9/19

3:55 pm-7:50 pm

1 stop18h 55m

$792

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Sat 9/12

8:30 pm-1:45 pm

1 stop26h 15m

Seattle/Tacoma Intl

Sat 9/19

3:55 pm-7:50 pm

1 stop18h 55m

$794

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Sat 9/12

3:15 pm-1:45 pm

1 stop31h 30m

Seattle/Tacoma Intl

Sat 9/19

3:55 pm-7:50 pm

1 stop18h 55m

$795

BrusselsSeattle

BRU - SEA

BRUSEA

Brussels Bruxelles-National

Fri 6/12

10:20 am-5:10 pm

1 stop15h 50m

Seattle/Tacoma Intl

Tue 6/16

7:10 pm-8:45 pm

1 stop16h 35m

$802

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 Belgium 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 cheapest month to fly to Seattle?

In general, January is the cheapest month to fly from Belgium 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 Belgium, when ticket prices are also cheap, with an average price of $495.

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

You are more likely to see cheaper flights to Seattle from Belgium when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $816 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Belgium for as low as $670 on momondo.

Cheap Belgium to Seattle flight deals and tips

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

Fastest flight time	14h 30m
Direct flights	None

The fastest flight from Belgium to Seattle takes 14h 30m

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

Search flight deals

Frequently asked questions about flying from Belgium to Seattle

When did momondo last update prices for flights from Belgium to Seattle/Tacoma Intl Airport?
Prices for flights from Belgium to Seattle/Tacoma Intl Airport are updated daily.
How many operators does momondo search for flights from Belgium to Seattle/Tacoma Intl Airport?
The number of operators available for flights from Belgium to Seattle/Tacoma Intl Airport is 6 as of May 2026.
How old do you have to be to fly from Belgium to Seattle/Tacoma Intl Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Belgium to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The travel and health documents you'll need for your trip to Seattle/Tacoma Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Belgium to Seattle

Compare and see reviews for airlines that fly from Belgium to Seattle with momondo

Airline	Rating	Free Cancellation	Price
Lufthansa	PriceFrom $570	Free Cancellation	Rating 6.8 7,974 reviews	Search Lufthansa flights
United Airlines	PriceFrom $584	Free Cancellation	Rating 7.4 9,683 reviews	Search United Airlines flights
British Airways	PriceFrom $586	Free Cancellation	Rating 6.7 7,944 reviews	Search British Airways flights
Icelandair	PriceFrom $604	Free Cancellation	Rating 7.0 650 reviews	Search Icelandair flights
Scandinavian Airlines	PriceFrom $628	Free Cancellation	Rating 7.4 1,769 reviews	Search Scandinavian Airlines flights
KLM	PriceFrom $676	Free Cancellation	Rating 7.8 1,511 reviews	Search KLM flights

Tacoma

Leavenworth

SeaTac

Ocean Shores

Renton

Olympia

Lynnwood

Redmond

Kent

Marysville

Puyallup

Tukwila

Lakewood

Cle Elum

Federal Way

Centralia

Fife

Shoreline

Westport

Tumwater

Why use momondo?

Why should I use momondo to find a flight deal from Belgium to Seattle?

Finding the right flight to Seattle from Belgium is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Seattle quick and easy, saving you time and money.

Can I find flights from Belgium to Seattle with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Seattle from Belgium with this policy.

How can momondo help me find flights from Belgium to Seattle?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Belgium to Seattle.

I’m not ready to book a flight from Belgium to Seattle right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Seattle, momondo offers a useful price alert feature which will track prices for flights to Seattle from Belgium and alert you when they change.