Which layover airport has the shortest connection time from Seattle to Brussels Bruxelles-National Airport?

Munich (MUC) has the shortest average layover time for this route: 1h 22m.

What airlines fly to Brussels Bruxelles-National Airport?

Lufthansa, Icelandair and United Airlines are the top three most popular airlines that fly to Brussels Bruxelles-National Airport from Seattle according to our data. Lufthansa is the first choice among our users, with 38% of people opting to fly with this airline when traveling to Brussels Bruxelles-National Airport. Keep in mind that there are 6 different airlines that fly to Brussels Bruxelles-National Airport on a routine basis, so you have a few additional options to choose from.

Which airport is the most popular layover for flights between Seattle and Brussels Bruxelles-National Airport?

Reykjavik (KEF) was the most common stop: 30% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from Seattle to Brussels Bruxelles-National Airport?

Flights via London (LHR) offer the lowest average round-trip price of $473.

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

Icelandair is the most popular carrier operating from Seattle/Tacoma Intl to Brussels Bruxelles-National

Which layover airport has the shortest travel time from Seattle to Brussels Bruxelles-National Airport?

Flights connecting via Munich (MUC) have the shortest average one-way travel time: 12h 25m.

When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Brussels Bruxelles-National Airport?

Prices for flights from Seattle/Tacoma Intl Airport to Brussels Bruxelles-National Airport refresh daily.

How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Brussels Bruxelles-National Airport?

As of September 2026, there are 6 operators available to choose from for flights from Seattle/Tacoma Intl Airport to Brussels Bruxelles-National Airport.

How old do you have to be to fly from Seattle/Tacoma Intl Airport to Brussels Bruxelles-National Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seattle/Tacoma Intl Airport to Brussels Bruxelles-National Airport.

What documentation or ID do you need to fly to Brussels Bruxelles-National Airport?

The travel and health documents required for your trip to Brussels Bruxelles-National 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 Brussels Bruxelles-National Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$231 Cheap Flights from Seattle to Brussels Bruxelles-National Airport in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Seattle to Brussels

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:35 pm - 11:55 amSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

12h 20m1 stop Reykjavik Keflavik Intl

12:50 pm - 5:00 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

13h 10m1 stop Reykjavik Keflavik Intl

$484Icelandair

Wed, Dec 2 - Sun, Dec 6

3:40 pm - 12:55 pmSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

12h 15m1 stop Reykjavik Keflavik Intl

12:50 pm - 6:00 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

13h 10m1 stop Reykjavik Keflavik Intl

$485Icelandair

Sun, Oct 18 - Thu, Oct 29

8:09 am - 7:15 amSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

14h 06m1 stop Washington, D.C. Dulles Intl

11:55 am - 8:56 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

18h 01m1 stop Washington, D.C. Dulles Intl

$570Multiple Airlines

Wed, Nov 4 - Wed, Nov 11

5:05 am - 7:50 amSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

17h 45m2 stops Denver Intl Montreal Pierre Elliott Trudeau Intl

10:00 am - 9:57 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

20h 57m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl

$571Multiple Airlines

Wed, Nov 4 - Wed, Nov 11

6:45 pm - 4:20 pmSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

12h 35m1 stop London Heathrow

12:05 pm - 4:50 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

13h 45m1 stop London Heathrow

$578British Airways

Wed, Dec 2 - Tue, Dec 8

6:45 pm - 4:20 pmSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

12h 35m1 stop London Heathrow

9:15 pm - 11:25 amBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

23h 10m1 stop London Heathrow

$578British Airways

Wed, Nov 4 - Mon, Nov 9

8:00 am - 7:15 amSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

14h 15m1 stop Washington, D.C. Dulles Intl

11:15 am - 9:40 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

19h 25m1 stop Newark

$588United Airlines

Wed, Jan 20 - Wed, Jan 27

7:00 am - 8:55 amSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

16h 55m1 stop Chicago O'Hare Intl

11:55 am - 9:56 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

19h 01m2 stops Washington, D.C. Dulles Intl Los Angeles

$588United Airlines

Wed, Jan 20 - Wed, Jan 27

3:00 pm - 7:10 amSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

31h 10m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

9:10 am - 2:22 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

38h 12m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl

$614Lufthansa

Mon, Oct 5 - Thu, Oct 15

3:00 pm - 7:10 amSEA Seattle/Tacoma Intl-BRU Brussels Bruxelles-National

31h 10m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl

6:45 am - 2:00 pmBRU Brussels Bruxelles-National-SEA Seattle/Tacoma Intl

15h 15m1 stop Munich Franz Josef Strauss

$700Lufthansa

Mon, Oct 12 - Sun, Oct 25

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Icelandair flights from Seattle to Brussels Bruxelles-National Airport

Our best Icelandair deals on Seattle to Brussels Bruxelles-National Airport flight tickets

Icelandair

Dec 2

SEA2:35 pmSeattle/Tacoma Intl

12h 20m

1 stop

BRU11:55 amBrussels Bruxelles-National

Dec 8

BRU12:50 pmBrussels Bruxelles-National

13h 10m

1 stop

SEA5:00 pmSeattle/Tacoma Intl

$473

Icelandair

Dec 2

SEA2:35 pmSeattle/Tacoma Intl

12h 20m

1 stop

BRU11:55 amBrussels Bruxelles-National

Dec 6

BRU12:50 pmBrussels Bruxelles-National

13h 10m

1 stop

SEA5:00 pmSeattle/Tacoma Intl

$484

Icelandair

Oct 18

SEA3:40 pmSeattle/Tacoma Intl

12h 15m

1 stop

BRU12:55 pmBrussels Bruxelles-National

Oct 29

BRU12:50 pmBrussels Bruxelles-National

13h 10m

1 stop

SEA6:00 pmSeattle/Tacoma Intl

$485

Air Canada flights from Seattle to Brussels Bruxelles-National Airport

Our best Air Canada deals on Seattle to Brussels Bruxelles-National Airport flight tickets

Air Canada

Jan 11

SEA7:05 pmSeattle/Tacoma Intl

27h 45m

2 stops

BRU7:50 amBrussels Bruxelles-National

Jan 24

BRU10:00 amBrussels Bruxelles-National

32h 27m

2 stops

SEA9:27 amSeattle/Tacoma Intl

$589

Air Canada

Oct 14

SEA5:50 amSeattle/Tacoma Intl

16h 20m

2 stops

BRU7:10 amBrussels Bruxelles-National

Nov 4

BRU10:00 amBrussels Bruxelles-National

20h 57m

2 stops

SEA9:57 pmSeattle/Tacoma Intl

$600

Air Canada

Oct 5

SEA10:50 amSeattle/Tacoma Intl

35h 20m

2 stops

BRU7:10 amBrussels Bruxelles-National

Oct 15

BRU9:55 amBrussels Bruxelles-National

20h 09m

1 stop

SEA9:04 pmSeattle/Tacoma Intl

$634

momondo Fare Finder

Use the filters below to find and compare flights from Seattle to Brussels Bruxelles-National Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleBrussels

SEA Seattle/Tacoma Intl - BRU Brussels Bruxelles-National

SEABRU

Seattle/Tacoma Intl

Wed 12/2

2:35 pm-11:55 am

1 stop12h 20m

Brussels Bruxelles-National

Sun 12/6

12:50 pm-5:00 pm

1 stop13h 10m

$484

Quickest round-trip

SeattleBrussels

SEA Seattle/Tacoma Intl - BRU Brussels Bruxelles-National

SEABRU

Seattle/Tacoma Intl

Sun 10/18

3:40 pm-12:55 pm

1 stop12h 15m

Brussels Bruxelles-National

Thu 10/29

12:50 pm-6:00 pm

1 stop13h 10m

$485

SeattleBrussels

SEA Seattle/Tacoma Intl - BRU Brussels Bruxelles-National

SEABRU

Seattle/Tacoma Intl

Wed 11/4

8:09 am-7:15 am

1 stop14h 06m

Brussels Bruxelles-National

Wed 11/11

11:55 am-8:56 pm

1 stop18h 01m

$570

SeattleBrussels

SEA Seattle/Tacoma Intl - BRU Brussels Bruxelles-National

SEABRU

Seattle/Tacoma Intl

Wed 11/4

5:05 am-7:50 am

2 stops17h 45m

Brussels Bruxelles-National

Wed 11/11

10:00 am-9:57 pm

2 stops20h 57m

$571

SeattleBrussels

SEA Seattle/Tacoma Intl - BRU Brussels Bruxelles-National

SEABRU

Seattle/Tacoma Intl

Wed 12/2

6:45 pm-4:20 pm

1 stop12h 35m

Brussels Bruxelles-National

Tue 12/8

12:05 pm-4:50 pm

1 stop13h 45m

$578

SeattleBrussels

SEA Seattle/Tacoma Intl - BRU Brussels Bruxelles-National

SEABRU

Seattle/Tacoma Intl

Wed 11/4

6:45 pm-4:20 pm

1 stop12h 35m

Brussels Bruxelles-National

Mon 11/9

9:15 pm-11:25 am

1 stop23h 10m

$578

SeattleBrussels

SEA Seattle/Tacoma Intl - BRU Brussels Bruxelles-National

SEABRU

Seattle/Tacoma Intl

Wed 1/20

8:00 am-7:15 am

1 stop14h 15m

Brussels Bruxelles-National

Wed 1/27

11:15 am-9:40 pm

1 stop19h 25m

$588

SeattleBrussels

SEA Seattle/Tacoma Intl - BRU Brussels Bruxelles-National

SEABRU

Seattle/Tacoma Intl

Wed 1/20

7:00 am-8:55 am

1 stop16h 55m

Brussels Bruxelles-National

Wed 1/27

11:55 am-9:56 pm

2 stops19h 01m

$588

SeattleBrussels

SEA Seattle/Tacoma Intl - BRU Brussels Bruxelles-National

SEABRU

Seattle/Tacoma Intl

Mon 10/5

3:00 pm-7:10 am

2 stops31h 10m

Brussels Bruxelles-National

Thu 10/15

9:10 am-2:22 pm

2 stops38h 12m

$614

SeattleBrussels

SEA Seattle/Tacoma Intl - BRU Brussels Bruxelles-National

SEABRU

Seattle/Tacoma Intl

Mon 10/12

3:00 pm-7:10 am

2 stops31h 10m

Brussels Bruxelles-National

Sun 10/25

6:45 am-2:00 pm

1 stop15h 15m

$700

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 Seattle to Brussels Bruxelles-National Airport

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

Layovers

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

Prices are currently low for flights on this route.

Typical prices usually range from $651 to $1,013.
The lowest price recently found on this route was $473.

What is the cheapest month to fly to Brussels Bruxelles-National Airport?

The cheapest month to fly to Brussels Bruxelles-National Airport from Seattle is in February. Flight prices, which tend to average around $510, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of February, then book flights to Brussels Bruxelles-National Airport from Seattle during January instead. Flights to Brussels Bruxelles-National Airport in January, while not as cheap as those in February, still average around $510.

How far in advance should I book a flight from Seattle to Brussels Bruxelles-National Airport?

You are more likely to see cheaper flights to Brussels Bruxelles-National Airport from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Brussels Bruxelles-National Airport for around $757 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Brussels Bruxelles-National Airport from Seattle for as low as $568 on momondo.

Can stopping save me money on Seattle to Brussels Bruxelles-National Airport flights?

You could potentially save up to 19% on your flight if you consider stops on a Seattle to Brussels Bruxelles-National Airport flight.

How have Seattle to Brussels Bruxelles-National Airport flight prices changed over time?

As of September 2026, prices for Seattle to Brussels Bruxelles-National Airport flights are approximately 55% cheaper when compared to flights at the same time last year.

When to book flights from Seattle to Brussels Bruxelles-National Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Brussels Bruxelles-National Airport according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Seattle to Brussels Bruxelles-National Airport (SEA to BRU) flight deals and tips

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

Best Price Found	$231
Fastest flight time	12h 15m
Direct flights	None

The best one-way flight to Brussels Bruxelles-National Airport from Seattle in the past 72 hours is $231. The best round-trip flight deal from Seattle to Brussels Bruxelles-National Airport found on momondo in the last 72 hours is $484.

The fastest flight from Seattle to Brussels Bruxelles-National Airport takes 12h 15m

There are no direct flights from Seattle to Brussels Bruxelles-National Airport. There are no popular flight routes from Seattle to Brussels Bruxelles-National Airport.

Search flight deals

Frequently asked questions about flying from Seattle to Brussels Bruxelles-National Airport

How far is Seattle/Tacoma Intl to Brussels Bruxelles-National by plane?
The straight-line distance from Seattle/Tacoma Intl to Brussels Bruxelles-National is 4932.2 mi. Typically, this will take 12h 15m by plane in normal conditions.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Brussels Bruxelles-National Airport?
Prices for flights from Seattle/Tacoma Intl Airport to Brussels Bruxelles-National Airport refresh daily.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Brussels Bruxelles-National Airport?
As of September 2026, there are 6 operators available to choose from for flights from Seattle/Tacoma Intl Airport to Brussels Bruxelles-National Airport.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Brussels Bruxelles-National Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seattle/Tacoma Intl Airport to Brussels Bruxelles-National Airport.
What documentation or ID do you need to fly to Brussels Bruxelles-National Airport?
The travel and health documents required for your trip to Brussels Bruxelles-National 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 Brussels Bruxelles-National Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Seattle to Brussels Bruxelles-National Airport?
Based on momondo bookings for flights between Seattle and Brussels Bruxelles-National Airport, the leading airline is Lufthansa, making up 33% of the total bookings. Other popular airlines include Icelandair with 32%, United Airlines with 11%, and Delta with 10%.

Best airlines flying from Seattle to Brussels Bruxelles-National Airport

Compare and see reviews for airlines that fly from Seattle to Brussels Bruxelles-National Airport with momondo

Airline	Rating	Free Cancellation	Price
Icelandair	PriceFrom $382	Free Cancellation	Rating 6.9 742 reviews	Search Icelandair flights
British Airways	PriceFrom $421	Free Cancellation	Rating 6.7 8,214 reviews	Search British Airways flights
KLM	PriceFrom $481	Free Cancellation	Rating 7.8 1,577 reviews	Search KLM flights
Lufthansa	PriceFrom $496	Free Cancellation	Rating 6.8 8,220 reviews	Search Lufthansa flights
United Airlines	PriceFrom $502	Free Cancellation	Rating 7.4 10,214 reviews	Search United Airlines flights
Delta	PriceFrom $509	Free Cancellation	Rating 7.8 8,566 reviews	Search Delta flights

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Ghent

Leuven

Durbuy

Zaventem

Dinant

Mons

Charleroi

Genk

Namur

Aalst

Mechelen

Waterloo

Hasselt

Francorchamps

Knokke-Heist

Spa

Halle

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Seattle to Brussels. Millions of users trust and use momondo every year so you are in good hands.

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

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

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

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 Seattle to Brussels.

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

Yes. momondo can track prices for Seattle to Brussels flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Flights to Charleroi Brussels Airportfrom $523

Cheap flights from Seattle to Brussels from $231

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Brussels departing on 10/7. 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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Icelandair flights from Seattle to Brussels Bruxelles-National Airport

Our best Icelandair deals on Seattle to Brussels Bruxelles-National Airport flight tickets

Air Canada flights from Seattle to Brussels Bruxelles-National Airport

Our best Air Canada deals on Seattle to Brussels Bruxelles-National Airport flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Seattle to Brussels Bruxelles-National Airport that are best for you.

See travel insights to Brussels from

How to get the cheapest flight ticket from Seattle to Brussels Bruxelles-National Airport

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

What is the cheapest month to fly to Brussels Bruxelles-National Airport?

How far in advance should I book a flight from Seattle to Brussels Bruxelles-National Airport?

Can stopping save me money on Seattle to Brussels Bruxelles-National Airport flights?

How have Seattle to Brussels Bruxelles-National Airport flight prices changed over time?

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

What airlines fly to Brussels Bruxelles-National Airport?

Which airport is the most popular layover for flights between Seattle and Brussels Bruxelles-National Airport?

Which layover airport offers the lowest fares from Seattle to Brussels Bruxelles-National Airport?

Which layover airport has the shortest travel time from Seattle to Brussels Bruxelles-National Airport?

Which layover airport has the shortest connection time from Seattle to Brussels Bruxelles-National Airport?

When to book flights from Seattle to Brussels Bruxelles-National Airport

Cheap Seattle to Brussels Bruxelles-National Airport (SEA to BRU) flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Seattle to Brussels Bruxelles-National Airport

Best airlines flying from Seattle to Brussels Bruxelles-National Airport

Compare and see reviews for airlines that fly from Seattle to Brussels Bruxelles-National Airport with momondo

Traveling to a place near Brussels?

Why use momondo?

An easier way to manage your Brussels Bruxelles-National Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Brussels

Popular cities in Belgium

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List of cabin classes available on flights landing in Brussels. Availability may vary depending on flight origin and airline.

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