Seattle / Tacoma (SEA) to Madrid (MAD) flight deal in economy from $732

Friday, August 28th, 2026

3 round-trip options

Returning
Fri, Sep 4, 20267 Day Trip
$1,049 USD
Returning
Wed, Sep 9, 202612 Day Trip
$997 USD
Returning
Fri, Sep 11, 202614 Day Trip
$992 USD