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

Friday, September 4th, 2026

4 round-trip options

Returning
Thu, Sep 10, 20266 Day Trip
$1,040 USD
Returning
Fri, Sep 11, 20267 Day Trip
$1,040 USD
Returning
Mon, Sep 14, 202610 Day Trip
$1,098 USD
Returning
Thu, Sep 17, 202613 Day Trip
$1,040 USD