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

Thursday, October 15th, 2026

8 round-trip options

Returning
Tue, Oct 20, 20265 Day Trip
$874 USD
Returning
Wed, Oct 21, 20266 Day Trip
$874 USD
Returning
Thu, Oct 22, 20267 Day Trip
$874 USD
Returning
Fri, Oct 23, 20268 Day Trip
$874 USD
Returning
Sat, Oct 24, 20269 Day Trip
$938 USD
Returning
Tue, Oct 27, 202612 Day Trip
$1,026 USD
Returning
Wed, Oct 28, 202613 Day Trip
$883 USD
Returning
Thu, Oct 29, 202614 Day Trip
$883 USD