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

Friday, September 11th, 2026

4 round-trip options

Returning
Thu, Sep 17, 20266 Day Trip
$979 USD
Returning
Fri, Sep 18, 20267 Day Trip
$979 USD
Returning
Mon, Sep 21, 202610 Day Trip
$1,029 USD
Returning
Thu, Sep 24, 202613 Day Trip
$979 USD