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

Tuesday, August 4th, 2026

3 round-trip options

Returning
Tue, Aug 11, 20267 Day Trip
$1,157 USD
Returning
Sun, Aug 16, 202612 Day Trip
$1,243 USD
Returning
Tue, Aug 18, 202614 Day Trip
$1,071 USD