AirHint found the following cheapest return flights from Graz (GRZ) to Milano (MXP) in December 2025 (see full year).
Return flights
| 29 Dec - 02 Jan | Lufthansa | ||
| 22 Dec - 23 Dec | Lufthansa | ||
| 09 Dec - 22 Dec | Lufthansa | ||
| 10 Dec - 17 Dec | SWISS |
Also check the deals for one-way flights from Graz to Milano in December.
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