Find Cheap Flights from Seattle to Belgium

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
The price shown for each flight will be the average for all passengers including any infants.
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Book cheap flights from Seattle to Belgium

(Round-trip)
Depart: Wed Jan 10 2018 Return: Sat Feb 3 2018 Trip spans 25 days
Delta
Delta
SEA
12:00a
BRU
4:25p
16h 25m
1 stop
BRU
12:00a
SEA
8:25p
20h 25m
1 stop
Depart: Sat Feb 24 2018 Return: Tue Mar 6 2018 Trip spans 11 days
KLM
KLM
SEA
12:00a
BRU
5:48p
17h 48m
2 stops
BRU
12:00a
SEA
1:28p
13h 28m
2 stops
Depart: Thu Nov 9 2017 Return: Thu Nov 16 2017 Trip spans 8 days
Brussels Airlines
Brussels Airlines
SEA
12:00a
BRU
2:00p
14h 00m
1 stop
BRU
12:00a
SEA
8:10p
20h 10m
1 stop
Depart: Wed Oct 25 2017 Return: Sat Nov 4 2017 Trip spans 11 days
British Airways
British Airways
SEA
12:00a
BRU
6:00p
18h 00m
2 stops
BRU
12:00a
SEA
12:45p
12h 45m
1 stop
Depart: Mon Oct 9 2017 Return: Wed Oct 18 2017 Trip spans 10 days
Multiple Airlines
Multiple Airlines
SEA
12:00a
BRU
11:40a
11h 40m
1 stop
BRU
12:00a
SEA
3:35a
27h 35m
1 stop
Depart: Tue Mar 6 2018 Return: Tue Mar 20 2018 Trip spans 14 days
KLM
KLM
SEA
12:00a
BRU
8:39p
20h 39m
2 stops
BRU
12:00a
SEA
1:28p
13h 28m
2 stops
Depart: Tue Dec 5 2017 Return: Tue Dec 12 2017 Trip spans 8 days
Brussels Airlines
Brussels Airlines
SEA
12:00a
BRU
2:00p
14h 00m
1 stop
BRU
12:00a
SEA
8:10p
20h 10m
1 stop
Depart: Fri Dec 15 2017 Return: Sun Dec 24 2017 Trip spans 10 days
British Airways
British Airways
SEA
12:00a
BRU
11:30p
23h 30m
2 stops
BRU
12:00a
SEA
12:04p
36h 04m
2 stops
Depart: Fri Sep 29 2017 Return: Fri Oct 6 2017 Trip spans 8 days
British Airways
British Airways
SEA
12:00a
BRU
5:25p
17h 25m
1 stop
BRU
12:00a
SEA
1:25p
13h 25m
1 stop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

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Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
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Airports
Origin

Seattle
$415
Destination

Brussels
$415