AirHint found the following cheapest return flights from Singapore (SIN) to Zagreb (ZAG) in December 2025 (see full year).
Return flights
| 31 Dec - 13 Jan | Lufthansa | ||
| 14 Dec - 07 Jan | Air France | ||
| 17 Dec - 07 Jan | Air France | ||
| 24 Dec - 01 Jan | Lufthansa | ||
| 17 Dec - 29 Dec | Air France | ||
| 24 Dec - 03 Jan | Air France | ||
| 18 Dec - 02 Jan | Lufthansa |
Also check the deals for one-way flights from Singapore to Zagreb in December.
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