AirHint found the following cheapest return flights from Ljubljana (LJU) to Athens (ATH) in April 2026 (see full year).

Return flights

03 Apr - 10 Apr	Aegean Airlines
10 Apr - 14 Apr	Aegean Airlines
07 Apr - 15 Apr	Air Serbia
21 Apr - 28 Apr	Air Serbia
20 Apr - 27 Apr	Air Serbia
24 Apr - 28 Apr	Air Serbia
25 Apr - 29 Apr	Air Serbia
03 Apr - 07 Apr	Air Serbia
22 Apr - 29 Apr	Air Serbia
24 Apr - 05 May	Air Serbia
24 Apr - 01 May	Air Serbia
29 Apr - 03 May	Air Serbia
30 Apr - 05 May	Air Serbia
24 Apr - 10 May	Air Serbia
09 Apr - 12 Apr	Air Serbia
24 Apr - 01 May	Aegean Airlines	direct

Also check the deals for one-way flights from Ljubljana to Athens in April.

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 April from $159

Return flights