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

Monday, December 14th, 2026

7 round-trip options

Returning
Sat, Dec 19, 20265 Day Trip
$1,164 USD
Returning
Mon, Dec 21, 20267 Day Trip
$889 USD
Returning
Tue, Dec 22, 20268 Day Trip
$891 USD
Returning
Wed, Dec 23, 20269 Day Trip
$881 USD
Returning
Thu, Dec 24, 202610 Day Trip
$880 USD
Returning
Sat, Dec 26, 202612 Day Trip
$973 USD
Returning
Sun, Dec 27, 202613 Day Trip
$971 USD