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

Return flights

30 Aug - 02 Sep	Finnair
28 Aug - 31 Aug	Finnair
23 Aug - 26 Aug	Finnair	direct
23 Aug - 28 Aug	Turkish Airlines
22 Aug - 27 Aug	Turkish Airlines
23 Aug - 27 Aug	Turkish Airlines
19 Aug - 26 Aug	Finnair	direct
29 Aug - 31 Aug	Turkish Airlines
25 Aug - 28 Aug	Turkish Airlines
31 Aug - 04 Sep	Turkish Airlines
26 Aug - 27 Aug	Finnair
23 Aug - 28 Aug	Finnair	direct
30 Aug - 02 Sep	Finnair	direct

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

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 August from 259€

Return flights