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

Wednesday, September 2nd, 2026

4 round-trip options

Returning
Tue, Sep 8, 20266 Day Trip
$1,057 USD
Returning
Wed, Sep 9, 20267 Day Trip
$1,057 USD
Returning
Sat, Sep 12, 202610 Day Trip
$1,115 USD
Returning
Tue, Sep 15, 202613 Day Trip
$994 USD