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

Sunday, September 27th, 2026

4 round-trip options

Returning
Sat, Oct 3, 20266 Day Trip
$840 USD
Returning
Sun, Oct 4, 20267 Day Trip
$855 USD
Returning
Wed, Oct 7, 202610 Day Trip
$742 USD
Returning
Sat, Oct 10, 202613 Day Trip
$780 USD