Cheapest return flights from Lisbon to Helsinki in December from $290

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

Return flights

06 Dec - 08 Dec KLM
15 Dec - 19 Dec easyJet
14 Dec - 20 Dec Norwegian Air Sweden AOC
22 Dec - 28 Dec Lufthansa
26 Dec - 03 Jan Ryanair
22 Dec - 27 Dec Lufthansa
26 Dec - 02 Jan Ryanair
16 Dec - 23 Dec KLM
26 Dec - 04 Jan Ryanair
22 Dec - 26 Dec Lufthansa
19 Dec - 23 Dec Finnair
21 Dec - 27 Dec Norwegian Air Sweden AOC
21 Dec - 26 Dec Norwegian Air Sweden AOC
27 Dec - 04 Jan Lufthansa
27 Dec - 04 Jan Finnair direct

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

Skyscanner

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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