Portland (PDX) to Lisbon (LIS) flight deal in economy from $745
$970 USD
-23%$745 USD
Verified about 7 hours agoDecember 2026
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Fair Availability
30% of dates checked are available within 10% of the lowest price
Tuesday, December 8th, 2026
6 round-trip options
Returning
Mon, Dec 14, 2026•6 Day Trip
$817 USD
Returning
Wed, Dec 16, 2026•8 Day Trip
$767 USD
Returning
Thu, Dec 17, 2026•9 Day Trip
$788 USD
Returning
Sat, Dec 19, 2026•11 Day Trip
$842 USD
Returning
Mon, Dec 21, 2026•13 Day Trip
$834 USD
Returning
Tue, Dec 22, 2026•14 Day Trip
$912 USD