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

Monday, October 12th, 2026

4 round-trip options

Returning
Sun, Oct 18, 20266 Day Trip
$855 USD
Returning
Mon, Oct 19, 20267 Day Trip
$732 USD
Returning
Thu, Oct 22, 202610 Day Trip
$742 USD
Returning
Sun, Oct 25, 202613 Day Trip
$792 USD