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

Wednesday, August 26th, 2026

3 round-trip options

Returning
Wed, Sep 2, 20267 Day Trip
$885 USD
Returning
Mon, Sep 7, 202612 Day Trip
$883 USD
Returning
Wed, Sep 9, 202614 Day Trip
$927 USD