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
Friday, September 11th, 2026
6 round-trip options
Returning
Wed, Sep 16, 2026•5 Day Trip
$1,029 USD
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Thu, Sep 17, 2026•6 Day Trip
$1,029 USD
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Sun, Sep 20, 2026•9 Day Trip
$1,089 USD
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Mon, Sep 21, 2026•10 Day Trip
$1,029 USD
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Tue, Sep 22, 2026•11 Day Trip
$1,029 USD
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Wed, Sep 23, 2026•12 Day Trip
$1,084 USD