AirHint found the following cheapest one-way flights from Porto (OPO) to Belgrade (BEG) in December 2025 (see full year).
One-Way flights
| 16 Dec | Ryanair | ||
| 24 Dec | Air Europa | ||
| 18 Dec | Ryanair | ||
| 17 Dec | Ryanair | ||
| 15 Dec | easyJet | ||
| 21 Dec | Ryanair | ||
| 11 Dec | Ryanair | ||
| 14 Dec | Ryanair | ||
| 13 Dec | Air Europa | ||
| 19 Dec | Ryanair |
Also check the deals for return flights from Porto to Belgrade in December.
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