Cheapest return flights from Portland to Lisbon in March from $490

AirHint found the following cheapest return flights from Portland (PDX) to Lisbon (LIS) in March 2026 (see full year).

Return flights

07 Mar - 15 Mar Icelandair
03 Mar - 10 Mar United
04 Mar - 11 Mar Lufthansa
02 Mar - 08 Apr United
02 Mar - 09 Mar United
24 Mar - 01 Apr British Airways
01 Mar - 08 Mar Finnair
08 Mar - 15 Mar British Airways
05 Mar - 13 Mar Air Canada
17 Mar - 30 Mar Air France
07 Mar - 14 Mar SWISS
05 Mar - 12 Mar Hawaiian Airlines
27 Mar - 03 Apr KLM

Also check the deals for one-way flights from Portland to Lisbon in March.

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