AirHint found the following cheapest one-way flights from London (LHR) to Belgrade (BEG) in December 2025 (see full year).
One-Way flights
| 31 Dec | Eurowings | ||
| 25 Dec | Vueling Airlines | ||
| 10 Dec | Scandinavian Airlines | ||
| 09 Dec | Scandinavian Airlines | ||
| 24 Dec | Eurowings | ||
| 27 Dec | LOT | ||
| 28 Dec | LOT | ||
| 29 Dec | LOT | ||
| 30 Dec | LOT | ||
| 31 Dec | Air Serbia | direct |
Also check the deals for return flights from London to Belgrade in December.
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