Portland (PDX) to Lisbon (LIS) flight deal in economy from $745
$970 USD
-23%$745 USD
Verified about 7 hours agoAugust 2026
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Fair Availability
30% of dates checked are available within 10% of the lowest price
Monday, August 31st, 2026
6 round-trip options
Returning
Sat, Sep 5, 2026•5 Day Trip
$1,643 USD
Returning
Sun, Sep 6, 2026•6 Day Trip
$1,028 USD
Returning
Wed, Sep 9, 2026•9 Day Trip
$959 USD
Returning
Thu, Sep 10, 2026•10 Day Trip
$959 USD
Returning
Fri, Sep 11, 2026•11 Day Trip
$959 USD
Returning
Sat, Sep 12, 2026•12 Day Trip
$1,036 USD