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

Friday, September 25th, 2026

4 round-trip options

Returning
Thu, Oct 1, 20266 Day Trip
$792 USD
Returning
Fri, Oct 2, 20267 Day Trip
$792 USD
Returning
Mon, Oct 5, 202610 Day Trip
$780 USD
Returning
Thu, Oct 8, 202613 Day Trip
$792 USD