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

Friday, October 23rd, 2026

8 round-trip options

Returning
Wed, Oct 28, 20265 Day Trip
$883 USD
Returning
Thu, Oct 29, 20266 Day Trip
$883 USD
Returning
Fri, Oct 30, 20267 Day Trip
$1,036 USD
Returning
Sat, Oct 31, 20268 Day Trip
$894 USD
Returning
Sun, Nov 1, 20269 Day Trip
$894 USD
Returning
Wed, Nov 4, 202612 Day Trip
$853 USD
Returning
Thu, Nov 5, 202613 Day Trip
$844 USD
Returning
Fri, Nov 6, 202614 Day Trip
$844 USD