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

Monday, December 7th, 2026

8 round-trip options

Returning
Sat, Dec 12, 20265 Day Trip
$1,927 USD
Returning
Sun, Dec 13, 20266 Day Trip
$848 USD
Returning
Mon, Dec 14, 20267 Day Trip
$848 USD
Returning
Tue, Dec 15, 20268 Day Trip
$798 USD
Returning
Wed, Dec 16, 20269 Day Trip
$798 USD
Returning
Sat, Dec 19, 202612 Day Trip
$865 USD
Returning
Sun, Dec 20, 202613 Day Trip
$960 USD
Returning
Mon, Dec 21, 202614 Day Trip
$865 USD