Portland (PDX) to Lisbon (LIS) flight deal in economy from $745
$970 USD
-23%$745 USD
Verified about 7 hours agoSeptember 2026
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Fair Availability
30% of dates checked are available within 10% of the lowest price
Sunday, September 20th, 2026
6 round-trip options
Returning
Fri, Sep 25, 2026•5 Day Trip
$1,492 USD
Returning
Sat, Sep 26, 2026•6 Day Trip
$1,055 USD
Returning
Tue, Sep 29, 2026•9 Day Trip
$940 USD
Returning
Wed, Sep 30, 2026•10 Day Trip
$940 USD
Returning
Thu, Oct 1, 2026•11 Day Trip
$940 USD
Returning
Fri, Oct 2, 2026•12 Day Trip
$957 USD