Seattle / Tacoma (SEA) to Brussels (BRU) flight deal in economy from $713

Sunday, December 13th, 2026

7 round-trip options

Returning
Fri, Dec 18, 20265 Day Trip
$1,120 USD
Returning
Sun, Dec 20, 20267 Day Trip
$976 USD
Returning
Mon, Dec 21, 20268 Day Trip
$893 USD
Returning
Tue, Dec 22, 20269 Day Trip
$891 USD
Returning
Wed, Dec 23, 202610 Day Trip
$886 USD
Returning
Fri, Dec 25, 202612 Day Trip
$886 USD
Returning
Sat, Dec 26, 202613 Day Trip
$977 USD