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
Monday, December 28th, 2026
6 round-trip options
Returning
Sun, Jan 3, 2027•6 Day Trip
$1,412 USD
Returning
Tue, Jan 5, 2027•8 Day Trip
$1,184 USD
Returning
Wed, Jan 6, 2027•9 Day Trip
$991 USD
Returning
Fri, Jan 8, 2027•11 Day Trip
$982 USD
Returning
Sun, Jan 10, 2027•13 Day Trip
$1,042 USD
Returning
Mon, Jan 11, 2027•14 Day Trip
$1,042 USD