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

Return flights

05 Dec - 08 Dec	airBaltic
08 Dec - 11 Dec	airBaltic
05 Dec - 12 Dec	airBaltic
11 Dec - 14 Dec	Vueling Airlines
10 Dec - 13 Dec	easyJet
22 Dec - 12 Jan	airBaltic
13 Dec - 17 Dec	easyJet
30 Dec - 05 Jan	Wizz Air
26 Dec - 05 Jan	airBaltic
26 Dec - 02 Jan	airBaltic
26 Dec - 01 Jan	airBaltic
17 Dec - 21 Dec	Lufthansa
22 Dec - 27 Dec	Air Serbia
20 Dec - 27 Dec	Lufthansa
17 Dec - 27 Dec	Lufthansa

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

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 Ljubljana to Helsinki in December from 177€

Return flights