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

Sunday, August 9th, 2026

3 round-trip options

Returning
Sun, Aug 16, 20267 Day Trip
$1,320 USD
Returning
Fri, Aug 21, 202612 Day Trip
$1,032 USD
Returning
Sun, Aug 23, 202614 Day Trip
$1,121 USD