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

Thursday, August 6th, 2026

10 round-trip options

Returning
Tue, Aug 11, 20265 Day Trip
$980 USD
Returning
Wed, Aug 12, 20266 Day Trip
$985 USD
Returning
Thu, Aug 13, 20267 Day Trip
$992 USD
Returning
Fri, Aug 14, 20268 Day Trip
$992 USD
Returning
Sat, Aug 15, 20269 Day Trip
$1,304 USD
Returning
Sun, Aug 16, 202610 Day Trip
$1,172 USD
Returning
Mon, Aug 17, 202611 Day Trip
$1,045 USD
Returning
Tue, Aug 18, 202612 Day Trip
$989 USD
Returning
Wed, Aug 19, 202613 Day Trip
$918 USD
Returning
Thu, Aug 20, 202614 Day Trip
$918 USD