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

Saturday, September 12th, 2026

4 round-trip options

Returning
Fri, Sep 18, 20266 Day Trip
$1,095 USD
Returning
Sat, Sep 19, 20267 Day Trip
$1,029 USD
Returning
Tue, Sep 22, 202610 Day Trip
$979 USD
Returning
Fri, Sep 25, 202613 Day Trip
$979 USD