AirHint found the following cheapest return flights from Innsbruck (INN) to Belgrade (BEG) in December 2025 (see full year).
Return flights
| 26 Dec - 07 Jan | TUI fly Belgium | ||
| 12 Dec - 14 Dec | Eurowings | ||
| 29 Dec - 01 Jan | Austrian Airlines | ||
| 26 Dec - 28 Dec | transavia | ||
| 23 Dec - 03 Jan | easyJet |
Also check the deals for one-way flights from Innsbruck to Belgrade in December.
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