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

Monday, December 14th, 2026

8 round-trip options

Returning
Sat, Dec 19, 20265 Day Trip
$2,057 USD
Returning
Sun, Dec 20, 20266 Day Trip
$1,095 USD
Returning
Mon, Dec 21, 20267 Day Trip
$945 USD
Returning
Tue, Dec 22, 20268 Day Trip
$970 USD
Returning
Wed, Dec 23, 20269 Day Trip
$940 USD
Returning
Sat, Dec 26, 202612 Day Trip
$1,078 USD
Returning
Sun, Dec 27, 202613 Day Trip
$1,173 USD
Returning
Mon, Dec 28, 202614 Day Trip
$935 USD