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

Return flights

23 Apr - 07 May	Lufthansa
21 Apr - 26 Apr	Norwegian Air Sweden AOC
03 Apr - 08 Apr	Lufthansa
03 Apr - 07 Apr	KLM
01 Apr - 06 Apr	Lufthansa
03 Apr - 06 Apr	Lufthansa
02 Apr - 06 Apr	Lufthansa
03 Apr - 07 Apr	Finnair	direct
23 Apr - 07 May	TAP	direct
03 Apr - 06 Apr	Finnair	direct
01 Apr - 06 Apr	Finnair	direct
02 Apr - 06 Apr	Finnair	direct

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

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Helsinki to Lisbon in April from $268

Return flights