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

Wednesday, October 21st, 2026

4 round-trip options

Returning
Tue, Oct 27, 20266 Day Trip
$750 USD
Returning
Wed, Oct 28, 20267 Day Trip
$750 USD
Returning
Sat, Oct 31, 202610 Day Trip
$800 USD
Returning
Tue, Nov 3, 202613 Day Trip
$780 USD