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

Return flights

24 Apr - 28 Apr	Air Serbia
23 Apr - 26 Apr	Air Serbia
21 Apr - 24 Apr	Air Serbia
21 Apr - 25 Apr	Air Serbia
28 Apr - 08 May	Air Serbia
01 Apr - 06 Apr	Air Serbia
15 Apr - 18 Apr	Air Serbia
27 Apr - 03 May	Air Serbia
28 Apr - 01 May	Air Serbia
24 Apr - 02 May	Air Serbia
21 Apr - 03 May	Air Serbia
25 Apr - 02 May	Air Serbia
14 Apr - 17 Apr	Air Serbia
10 Apr - 14 Apr	Lufthansa
10 Apr - 17 Apr	Air Serbia
10 Apr - 15 Apr	Air Serbia
25 Apr - 01 May	Air Serbia
28 Apr - 08 May	Aegean Airlines	direct
28 Apr - 01 May	Aegean Airlines	direct
16 Apr - 03 May	Vueling Airlines

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 $175

Return flights