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

Sunday, October 11th, 2026

4 round-trip options

Returning
Sat, Oct 17, 20266 Day Trip
$816 USD
Returning
Sun, Oct 18, 20267 Day Trip
$816 USD
Returning
Wed, Oct 21, 202610 Day Trip
$750 USD
Returning
Sat, Oct 24, 202613 Day Trip
$800 USD