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

Tuesday, August 18th, 2026

3 round-trip options

Returning
Tue, Aug 25, 20267 Day Trip
$1,024 USD
Returning
Sun, Aug 30, 202612 Day Trip
$1,084 USD
Returning
Tue, Sep 1, 202614 Day Trip
$1,024 USD