AirHint found the following cheapest return flights from Split (SPU) to Athens (ATH) in December 2025 (see full year).
Return flights
| 08 Dec - 15 Dec | SWISS | ||
| 18 Dec - 10 Jan | Lufthansa | ||
| 12 Dec - 19 Dec | Croatia Airlines | ||
| 17 Dec - 21 Dec | Croatia Airlines |
Also check the deals for one-way flights from Split to Athens in December.
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