Cheapest return flights from Portland to Lisbon in April from 464€

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

Return flights

07 Apr - 14 Apr Air Canada
21 Apr - 28 Apr Air Canada
14 Apr - 21 Apr Air Canada
28 Apr - 05 May Lufthansa
08 Apr - 15 Apr KLM
13 Apr - 20 Apr KLM
22 Apr - 29 Apr Lufthansa
27 Apr - 04 May KLM
20 Apr - 27 Apr Air Canada
09 Apr - 16 Apr Air Canada
29 Apr - 06 May British Airways
15 Apr - 22 Apr British Airways
12 Apr - 19 Apr KLM
30 Apr - 07 May KLM
26 Apr - 03 May Finnair
24 Apr - 01 May British Airways
25 Apr - 02 May KLM

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

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