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

Saturday, October 3rd, 2026

8 round-trip options

Returning
Thu, Oct 8, 20265 Day Trip
$2,154 USD
Returning
Fri, Oct 9, 20266 Day Trip
$978 USD
Returning
Sat, Oct 10, 20267 Day Trip
$978 USD
Returning
Sun, Oct 11, 20268 Day Trip
$925 USD
Returning
Mon, Oct 12, 20269 Day Trip
$925 USD
Returning
Thu, Oct 15, 202612 Day Trip
$865 USD
Returning
Fri, Oct 16, 202613 Day Trip
$876 USD
Returning
Sat, Oct 17, 202614 Day Trip
$925 USD