AirHint found the following cheapest return flights from Newcastle (NCL) to Sofia (SOF) in December 2025 (see full year).
Return flights
| 10 Dec - 13 Dec | easyJet | ||
| 03 Dec - 10 Dec | easyJet | ||
| 19 Dec - 23 Dec | Ryanair | ||
| 20 Dec - 27 Dec | Ryanair | ||
| 20 Dec - 27 Dec | TUI | direct | |
| 27 Dec - 03 Jan | Ryanair | ||
| 31 Dec - 03 Jan | easyJet | ||
| 27 Dec - 03 Jan | TUI | direct |
Also check the deals for one-way flights from Newcastle to Sofia in December.
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