Cheapest return flights from Lisbon to Helsinki in December from $206

Best time to book flights for Lisbon (LIS) to Helsinki (HEL) flights at AirHint

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

Return flights

04 Dec - 07 Dec Ryanair
01 Dec - 05 Dec Ryanair
15 Dec - 18 Dec KLM
06 Dec - 08 Dec KLM
05 Dec - 08 Dec Finnair
04 Dec - 07 Dec Finnair direct
25 Dec - 03 Jan airBaltic
01 Dec - 05 Dec Finnair direct
13 Dec - 20 Dec airBaltic
19 Dec - 02 Jan Finnair
22 Dec - 26 Dec Finnair
20 Dec - 23 Dec Finnair
25 Dec - 03 Jan Finnair direct
19 Dec - 02 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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