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

Saturday, September 26th, 2026

4 round-trip options

Returning
Fri, Oct 2, 20266 Day Trip
$907 USD
Returning
Sat, Oct 3, 20267 Day Trip
$905 USD
Returning
Tue, Oct 6, 202610 Day Trip
$792 USD
Returning
Fri, Oct 9, 202613 Day Trip
$750 USD