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

Saturday, September 5th, 2026

4 round-trip options

Returning
Fri, Sep 11, 20266 Day Trip
$1,317 USD
Returning
Sat, Sep 12, 20267 Day Trip
$1,037 USD
Returning
Tue, Sep 15, 202610 Day Trip
$957 USD
Returning
Fri, Sep 18, 202613 Day Trip
$992 USD