Portland (PDX) to Lisbon (LIS) flight deal in economy from $745
$970 USD
-23%$745 USD
Verified about 9 hours agoAugust 2026
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Fair Availability
30% of dates checked are available within 10% of the lowest price
Sunday, August 23rd, 2026
6 round-trip options
Returning
Fri, Aug 28, 2026•5 Day Trip
$1,583 USD
Returning
Sat, Aug 29, 2026•6 Day Trip
$1,019 USD
Returning
Tue, Sep 1, 2026•9 Day Trip
$959 USD
Returning
Wed, Sep 2, 2026•10 Day Trip
$959 USD
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Thu, Sep 3, 2026•11 Day Trip
$959 USD
Returning
Fri, Sep 4, 2026•12 Day Trip
$959 USD