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

Sunday, November 29th, 2026

8 round-trip options

Returning
Fri, Dec 4, 20265 Day Trip
$1,873 USD
Returning
Sat, Dec 5, 20266 Day Trip
$1,048 USD
Returning
Sun, Dec 6, 20267 Day Trip
$946 USD
Returning
Mon, Dec 7, 20268 Day Trip
$946 USD
Returning
Tue, Dec 8, 20269 Day Trip
$896 USD
Returning
Fri, Dec 11, 202612 Day Trip
$896 USD
Returning
Sat, Dec 12, 202613 Day Trip
$955 USD
Returning
Sun, Dec 13, 202614 Day Trip
$946 USD