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

Saturday, December 26th, 2026

6 round-trip options

Returning
Fri, Jan 1, 20276 Day Trip
$1,745 USD
Returning
Sun, Jan 3, 20278 Day Trip
$1,815 USD
Returning
Mon, Jan 4, 20279 Day Trip
$1,313 USD
Returning
Wed, Jan 6, 202711 Day Trip
$1,226 USD
Returning
Fri, Jan 8, 202713 Day Trip
$961 USD
Returning
Sat, Jan 9, 202714 Day Trip
$1,031 USD