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

Sunday, July 26th, 2026

6 round-trip options

Returning
Fri, Jul 31, 20265 Day Trip
$1,596 USD
Returning
Sun, Aug 2, 20267 Day Trip
$1,226 USD
Returning
Mon, Aug 3, 20268 Day Trip
$1,227 USD
Returning
Wed, Aug 5, 202610 Day Trip
$1,147 USD
Returning
Sat, Aug 8, 202613 Day Trip
$1,217 USD
Returning
Sun, Aug 9, 202614 Day Trip
$1,395 USD