Cheap Flights from Portland to Lisbon
Browse current best options from Portland. Become a member to unlock all deals and get alerts when new deals appear.
Deals from
Portland
RatePunk searches hundreds of travel sites at once for deals on flights to Lisbon
Prices updated 1 day ago
461 airlines compared
80%+ AI score for best value
Fares are subject to change and may not be available for all dates. (Data last updated Sep 14, 2026.)
Today’s best flight deals from Portland to Lisbon
Explore current cheapest deals departing from Portland to Lisbon
2026-11-17 – 2026-11-24
PDX - Lisbon
82% AI deal score
$689
$581
Round trip
2027-01-18 – 2027-01-28
PDX - Lisbon
84% AI deal score
$682
$585
Round trip
2027-03-03 – 2027-03-12
PDX - Lisbon
91% AI deal score
$840
$591
Round trip
2027-02-07 – 2027-02-16
PDX - Lisbon
90% AI deal score
$770
$598
Round trip
2026-11-11 – 2026-11-17
PDX - Lisbon
82% AI deal score
$685
$599
Round trip
2026-11-04 – 2026-11-11
PDX - Lisbon
81% AI deal score
$683
$603
Round trip
2027-03-23 – 2027-03-30
PDX - Lisbon
93% AI deal score
$988
$603
Round trip
2026-11-11 – 2026-11-18
PDX - Lisbon
81% AI deal score
$685
$604
Round trip
2027-03-22 – 2027-03-31
PDX - Lisbon
93% AI deal score
$987
$605
Round trip
2027-03-22 – 2027-03-30
PDX - Lisbon
93% AI deal score
$984
$605
Round trip
