Portland (PDX) to Porto (OPO) flight deal in economy from $733

Monday, December 28th, 2026

8 round-trip options

Returning
Sat, Jan 2, 20275 Day Trip
$1,213 USD
Returning
Sun, Jan 3, 20276 Day Trip
$1,338 USD
Returning
Tue, Jan 5, 20278 Day Trip
$1,202 USD
Returning
Wed, Jan 6, 20279 Day Trip
$1,073 USD
Returning
Thu, Jan 7, 202710 Day Trip
$771 USD
Returning
Sat, Jan 9, 202712 Day Trip
$831 USD
Returning
Sun, Jan 10, 202713 Day Trip
$831 USD
Returning
Mon, Jan 11, 202714 Day Trip
$831 USD