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

Monday, October 19th, 2026

4 round-trip options

Returning
Sun, Oct 25, 20266 Day Trip
$792 USD
Returning
Mon, Oct 26, 20267 Day Trip
$792 USD
Returning
Thu, Oct 29, 202610 Day Trip
$742 USD
Returning
Sun, Nov 1, 202613 Day Trip
$832 USD