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
Sunday, December 20th, 2026
6 round-trip options
Returning
Sat, Dec 26, 2026•6 Day Trip
$1,505 USD
Returning
Mon, Dec 28, 2026•8 Day Trip
$1,445 USD
Returning
Tue, Dec 29, 2026•9 Day Trip
$1,541 USD
Returning
Thu, Dec 31, 2026•11 Day Trip
$1,755 USD
Returning
Sat, Jan 2, 2027•13 Day Trip
$1,891 USD
Returning
Sun, Jan 3, 2027•14 Day Trip
$1,866 USD