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

Wednesday, December 23rd, 2026

8 round-trip options

Returning
Mon, Dec 28, 20265 Day Trip
$1,071 USD
Returning
Tue, Dec 29, 20266 Day Trip
$1,004 USD
Returning
Thu, Dec 31, 20268 Day Trip
$1,208 USD
Returning
Fri, Jan 1, 20279 Day Trip
$1,340 USD
Returning
Sat, Jan 2, 202710 Day Trip
$1,433 USD
Returning
Mon, Jan 4, 202712 Day Trip
$1,172 USD
Returning
Tue, Jan 5, 202713 Day Trip
$1,428 USD
Returning
Wed, Jan 6, 202714 Day Trip
$1,224 USD