AirHint found the following cheapest one-way flights from Athens (ATH) to Ljubljana (LJU) in April 2026 (see full year).
One-Way flights
| 24 Apr | Aegean Airlines | direct | |
| 08 Apr | Air Serbia | ||
| 10 Apr | Air Serbia | ||
| 25 Apr | Air Serbia | ||
| 10 Apr | Aegean Airlines | direct | |
| 06 Apr | Air Serbia |
Also check the deals for return flights from Athens to Ljubljana in April.
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