Portland (PDX) to Porto (OPO) flight deal in economy from $794

Tuesday, December 8th, 2026

8 round-trip options

Returning
Sun, Dec 13, 20265 Day Trip
$855 USD
Returning
Mon, Dec 14, 20266 Day Trip
$855 USD
Returning
Tue, Dec 15, 20267 Day Trip
$805 USD
Returning
Wed, Dec 16, 20268 Day Trip
$805 USD
Returning
Thu, Dec 17, 20269 Day Trip
$816 USD
Returning
Sun, Dec 20, 202612 Day Trip
$961 USD
Returning
Mon, Dec 21, 202613 Day Trip
$916 USD
Returning
Tue, Dec 22, 202614 Day Trip
$947 USD