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

Sunday, December 20th, 2026

7 round-trip options

Returning
Fri, Dec 25, 20265 Day Trip
$1,348 USD
Returning
Sun, Dec 27, 20267 Day Trip
$1,167 USD
Returning
Mon, Dec 28, 20268 Day Trip
$1,167 USD
Returning
Tue, Dec 29, 20269 Day Trip
$1,105 USD
Returning
Wed, Dec 30, 202610 Day Trip
$1,098 USD
Returning
Fri, Jan 1, 202712 Day Trip
$1,223 USD
Returning
Sat, Jan 2, 202713 Day Trip
$1,337 USD