AirHint found the following cheapest return flights from Naples (NAP) to Billund (BLL) in December 2025 (see full year).
Return flights
| 20 Dec - 24 Jan | KLM | ||
| 04 Dec - 08 Dec | KLM | ||
| 06 Dec - 09 Dec | KLM | ||
| 06 Dec - 08 Dec | KLM | ||
| 30 Dec - 02 Jan | Ryanair | ||
| 05 Dec - 08 Dec | Ryanair | ||
| 22 Dec - 22 Dec | Ryanair |
Also check the deals for one-way flights from Naples to Billund in December.
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