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

Return flights

29 Aug - 04 Sep	Air Serbia
29 Aug - 05 Sep	Air Serbia
05 Aug - 13 Aug	Air Serbia
05 Aug - 08 Aug	Air Serbia
05 Aug - 19 Aug	Air Serbia
30 Aug - 06 Sep	Air Serbia
26 Aug - 02 Sep	Air Serbia
20 Aug - 26 Aug	Air Serbia
15 Aug - 20 Aug	Air Serbia
12 Aug - 19 Aug	Air Serbia
18 Aug - 28 Aug	Air Serbia
09 Aug - 16 Aug	Air Serbia
19 Aug - 26 Aug	Air Serbia
02 Aug - 16 Aug	Air Serbia
27 Aug - 03 Sep	Air Serbia
26 Aug - 02 Sep	Aegean Airlines	direct
29 Aug - 05 Sep	Aegean Airlines	direct

Also check the deals for one-way flights from Ljubljana to Athens 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 Athens in August from $176

Return flights