AirHint found the following cheapest return flights from Billund (BLL) to Lisbon (LIS) in December 2026 (see full year).
Return flights
| 15 Dec - 20 Dec | LOT | ||
| 03 Dec - 12 Dec | KLM | ||
| 07 Dec - 23 Dec | LOT | ||
| 31 Dec - 29 Jan | KLM | ||
| 25 Dec - 23 Jan | KLM | ||
| 23 Dec - 05 Jan | Lufthansa |
Also check the deals for one-way flights from Billund to Lisbon in December.
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