AirHint found the following cheapest return flights from Brussels (BRU) to Billund (BLL) in December 2025 (see full year).
Return flights
| 03 Dec - 10 Dec | easyJet | ||
| 26 Dec - 01 Jan | Ryanair | ||
| 24 Dec - 26 Dec | Ryanair | ||
| 20 Dec - 04 Jan | Ryanair |
Also check the deals for one-way flights from Brussels to Billund in December.
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