Cheapest return flights from Helsinki to Lisbon in December from $335

AirHint found the following cheapest return flights from Helsinki (HEL) to Lisbon (LIS) in December 2025 (see full year).

Return flights

29 Dec - 02 Jan Lufthansa
24 Dec - 04 Jan Norwegian Air Sweden AOC
28 Dec - 04 Jan Lufthansa
20 Dec - 27 Dec Lufthansa
19 Dec - 03 Jan Finnair
29 Dec - 02 Jan Finnair direct
28 Dec - 04 Jan Finnair direct
24 Dec - 04 Jan Finnair direct

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

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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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