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Cheap flights from Seattle to Brussels from $256

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 4/22. 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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Find the cheapest flights from Seattle to Brussels

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from Seattle to Brussels.
Icelandair Logo
11:30 pm - 12:50 pmSEA-BRU
28h 20m1 stop
Icelandair Logo
1:50 pm - 8:40 pmBRU-SEA
15h 50m1 stop
$459Icelandair
Find Deal
Sun, Aug 3 - Mon, Aug 25
Icelandair Logo
3:45 pm - 12:50 pmSEA-BRU
12h 05m1 stop
Icelandair Logo
1:50 pm - 5:50 pmBRU-SEA
13h 00m1 stop
$463Icelandair
Find Deal
Sun, May 11 - Sun, May 18
United Airlines Logo
7:20 am - 8:05 amSEA-BRU
15h 45m1 stop
United Airlines Logo
10:10 am - 10:29 pmBRU-SEA
21h 19m1 stop
$540United Airlines
Find Deal
Tue, Sep 9 - Wed, Dec 10
United Airlines Logo
12:20 am - 7:50 amSEA-BRU
22h 30m2 stops
United Airlines Logo
10:00 am - 8:41 pmBRU-SEA
19h 41m1 stop
$541United Airlines
Find Deal
Tue, Jul 29 - Thu, Aug 21
Lufthansa Logo
2:20 pm - 5:15 pmSEA-BRU
17h 55m2 stops
Lufthansa Logo
10:00 am - 2:16 pmBRU-SEA
37h 16m2 stops
$577Lufthansa
Find Deal
Wed, Jul 30 - Fri, Aug 22
Delta Logo
2:05 pm - 2:35 pmSEA-BRU
15h 30m1 stop
Delta Logo
3:05 pm - 11:35 amBRU-SEA
29h 30m1 stop
$578Delta
Find Deal
Wed, Jul 30 - Mon, Aug 25
Delta Logo
6:00 am - 8:40 amSEA-BRU
17h 40m2 stops
Delta Logo
10:45 am - 12:08 amBRU-SEA
22h 23m2 stops
$584Delta
Find Deal
Wed, Aug 20 - Thu, Sep 4
British Airways Logo
8:20 pm - 2:25 pmSEA-BRU
33h 05m1 stop
British Airways Logo
10:40 am - 11:10 amBRU-SEA
33h 30m1 stop
$589British Airways
Find Deal
Mon, Aug 4 - Mon, Aug 25
Lufthansa Logo
2:20 pm - 12:45 pmSEA-BRU
13h 25m1 stop
Lufthansa Logo
10:00 am - 2:16 pmBRU-SEA
37h 16m2 stops
$605Lufthansa
Find Deal
Wed, Jul 30 - Mon, Aug 25
British Airways Logo
1:30 pm - 2:10 pmSEA-BRU
15h 40m1 stop
British Airways Logo
9:10 pm - 6:20 pmBRU-SEA
30h 10m1 stop
$634British Airways
Find Deal
Thu, Aug 14 - Wed, Aug 20

American Airlines flights from Seattle to Brussels

Our best American Airlines deals on Seattle to Brussels flight tickets
American Airlines
Sep 22
SEA9:44 amSeattle/Tacoma Intl
19h 36m
2 stops
BRU2:20 pmBrussels Bruxelles-National
Sep 29
BRU3:00 pmBrussels Bruxelles-National
29h 10m
1 stop
SEA11:10 amSeattle/Tacoma Intl
American Airlines
May 5
SEA1:30 pmSeattle/Tacoma Intl
18h 40m
1 stop
BRU5:10 pmBrussels Bruxelles-National
May 12
BRU3:00 pmBrussels Bruxelles-National
29h 10m
1 stop
SEA11:10 amSeattle/Tacoma Intl

Icelandair flights from Seattle to Brussels

Our best Icelandair deals on Seattle to Brussels flight tickets
Icelandair
Aug 3
SEA11:30 pmSeattle/Tacoma Intl
28h 20m
1 stop
BRU12:50 pmBrussels Bruxelles-National
Aug 25
BRU1:50 pmBrussels Bruxelles-National
15h 50m
1 stop
SEA8:40 pmSeattle/Tacoma Intl
Icelandair
May 11
SEA3:45 pmSeattle/Tacoma Intl
12h 05m
1 stop
BRU12:50 pmBrussels Bruxelles-National
May 18
BRU1:50 pmBrussels Bruxelles-National
13h 00m
1 stop
SEA5:50 pmSeattle/Tacoma Intl
Icelandair
May 11
SEA3:45 pmSeattle/Tacoma Intl
12h 05m
1 stop
BRU12:50 pmBrussels Bruxelles-National
May 19
BRU1:50 pmBrussels Bruxelles-National
13h 00m
1 stop
SEA5:50 pmSeattle/Tacoma Intl

See travel insights to Brussels from

How to get the cheapest flight ticket from Seattle to Brussels

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

What is the cheapest month to fly to Brussels?

In general, February is the cheapest month to fly from Seattle to Brussels. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $527. If you are unable to visit Brussels during the month of February, then departing from Seattle during the month November is also very affordable. Most momondo users find prices during this month for around $534.

What is the cheapest day to depart on your flight to Brussels?

On average, the least expensive day to fly to Brussels from Seattle is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $626. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Wednesday is the most expensive day to depart from Seattle because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $783.

What is the cheapest time of day to depart on your flight to Brussels?

According to our data, the cheapest time of day to fly to Brussels is in the morning. momondo users have found flights departing from Seattle to Brussels in the morning for as low as $668. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights at noon are often more expensive with an average ticket price of $738.

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

You are more likely to see cheaper flights to Brussels from Seattle when booking 23 weeks ahead of your departure date. In general, you can expect to find flights to Brussels for around $649 when searching 23 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Brussels from Seattle for as low as $576 on momondo.

Cheap Seattle to Brussels flight deals and tips

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

Best Price Found

$256

Fastest flight time

12h 05m

Direct flights

None

Airports in Brussels

2 airports
The best one-way flight to Brussels from Seattle in the past 72 hours is $256. The best round-trip flight deal from Seattle to Brussels found on momondo in the last 72 hours is $459.
The fastest flight from Seattle to Brussels takes 12h 05m
There are no direct flights from Seattle to Brussels. Popular non-direct routes for this connection are Seattle/Tacoma Intl Airport - Brussels Bruxelles-National Airport and Seattle/Tacoma Intl Airport - Charleroi Brussels Airport.
There are 2 airports near Brussels: Brussels Bruxelles-National (BRU), Charleroi Brussels (CRL)

  • How far is Seattle/Tacoma Intl to Brussels by plane?

    A flight from Seattle/Tacoma Intl to Brussels will travel around 4931.7 mi. 12h 05m is a normal flight duration for this route.

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

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

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

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

    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.

  • What documentation or ID do you need to fly to Brussels?

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


Best airlines flying from Seattle to Brussels

Compare and see reviews for airlines that fly from Seattle to Brussels with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom $403Free CancellationRating
7.0
481 reviews
Search Icelandair flights
British AirwaysPriceFrom $495Free CancellationRating
6.6
6,771 reviews
Search British Airways flights
American AirlinesPriceFrom $501Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $529Free CancellationRating
7.4
8,667 reviews
Search United Airlines flights
Aer LingusPriceFrom $532Free CancellationRating
7.0
1,063 reviews
Search Aer Lingus flights
KLMPriceFrom $532Free CancellationRating
7.8
1,327 reviews
Search KLM flights
Air CanadaPriceFrom $543Free CancellationRating
7.0
9,139 reviews
Search Air Canada flights
DeltaPriceFrom $549Free CancellationRating
8.0
7,916 reviews
Search Delta flights
Air FrancePriceFrom $554Free CancellationRating
7.5
1,435 reviews
Search Air France flights
LufthansaPriceFrom $580Free CancellationRating
6.7
7,011 reviews
Search Lufthansa flights

Why use momondo?

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

It is quick and easy to find Seattle to Brussels flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Brussels that suits you.

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

Yes. momondo allows you to filter the results for Seattle to Brussels flights to just show those with flexible booking policies.

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

momondo helps you find the best flight between Seattle and Brussels by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are not ready to book a flight from Seattle to Brussels now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Brussels and let you know when they change.


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Tue 4/22
Tue 4/29

Find better results for your trip to Belgium

Fly into one of these airports located in Brussels

Airports listed have a maximum distance of 27.4 mi from Brussels