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

Saturday, December 12th, 2026

8 round-trip options

Returning
Thu, Dec 17, 20265 Day Trip
$1,884 USD
Returning
Fri, Dec 18, 20266 Day Trip
$1,884 USD
Returning
Sat, Dec 19, 20267 Day Trip
$1,057 USD
Returning
Sun, Dec 20, 20268 Day Trip
$961 USD
Returning
Mon, Dec 21, 20269 Day Trip
$916 USD
Returning
Thu, Dec 24, 202612 Day Trip
$816 USD
Returning
Fri, Dec 25, 202613 Day Trip
$911 USD
Returning
Sat, Dec 26, 202614 Day Trip
$1,068 USD