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

Wednesday, December 9th, 2026

8 round-trip options

Returning
Mon, Dec 14, 20265 Day Trip
$844 USD
Returning
Tue, Dec 15, 20266 Day Trip
$794 USD
Returning
Wed, Dec 16, 20267 Day Trip
$794 USD
Returning
Thu, Dec 17, 20268 Day Trip
$811 USD
Returning
Fri, Dec 18, 20269 Day Trip
$936 USD
Returning
Mon, Dec 21, 202612 Day Trip
$860 USD
Returning
Tue, Dec 22, 202613 Day Trip
$936 USD
Returning
Wed, Dec 23, 202614 Day Trip
$905 USD