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
Friday, December 25th, 2026
6 round-trip options
Returning
Thu, Dec 31, 2026•6 Day Trip
$1,717 USD
Returning
Sat, Jan 2, 2027•8 Day Trip
$1,844 USD
Returning
Sun, Jan 3, 2027•9 Day Trip
$1,606 USD
Returning
Tue, Jan 5, 2027•11 Day Trip
$1,300 USD
Returning
Thu, Jan 7, 2027•13 Day Trip
$900 USD
Returning
Fri, Jan 8, 2027•14 Day Trip
$890 USD