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

Friday, July 24th, 2026

6 round-trip options

Returning
Wed, Jul 29, 20265 Day Trip
$1,216 USD
Returning
Fri, Jul 31, 20267 Day Trip
$1,224 USD
Returning
Sat, Aug 1, 20268 Day Trip
$1,286 USD
Returning
Mon, Aug 3, 202610 Day Trip
$1,287 USD
Returning
Thu, Aug 6, 202613 Day Trip
$1,216 USD
Returning
Fri, Aug 7, 202614 Day Trip
$1,216 USD