Portland (PDX) to Lisbon (LIS) flight deal in economy from $745
$970 USD
-23%$745 USD
Verified about 9 hours agoDecember 2026
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Fair Availability
30% of dates checked are available within 10% of the lowest price
Thursday, December 3rd, 2026
6 round-trip options
Returning
Wed, Dec 9, 2026•6 Day Trip
$805 USD
Returning
Fri, Dec 11, 2026•8 Day Trip
$817 USD
Returning
Sat, Dec 12, 2026•9 Day Trip
$877 USD
Returning
Mon, Dec 14, 2026•11 Day Trip
$867 USD
Returning
Wed, Dec 16, 2026•13 Day Trip
$817 USD
Returning
Thu, Dec 17, 2026•14 Day Trip
$838 USD