Portland (PDX) to Lisbon (LIS) flight deal in economy from $745
$970 USD
-23%$745 USD
Verified about 7 hours agoSeptember 2026
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Fair Availability
30% of dates checked are available within 10% of the lowest price
Monday, September 28th, 2026
6 round-trip options
Returning
Sat, Oct 3, 2026•5 Day Trip
$953 USD
Returning
Sun, Oct 4, 2026•6 Day Trip
$875 USD
Returning
Wed, Oct 7, 2026•9 Day Trip
$805 USD
Returning
Thu, Oct 8, 2026•10 Day Trip
$805 USD
Returning
Fri, Oct 9, 2026•11 Day Trip
$805 USD
Returning
Sat, Oct 10, 2026•12 Day Trip
$875 USD