Portland (PDX) to Lisbon (LIS) flight deal in economy from $745

Thursday, July 30th, 2026

6 round-trip options

Returning
Tue, Aug 4, 20265 Day Trip
$1,029 USD
Returning
Thu, Aug 6, 20267 Day Trip
$1,029 USD
Returning
Fri, Aug 7, 20268 Day Trip
$1,075 USD
Returning
Sun, Aug 9, 202610 Day Trip
$1,423 USD
Returning
Wed, Aug 12, 202613 Day Trip
$1,200 USD
Returning
Thu, Aug 13, 202614 Day Trip
$1,200 USD