AirHint found the following cheapest return flights from London (LCY) to Billund (BLL) in December 2025 (see full year).

Return flights

18 Dec - 07 Jan	KLM
16 Dec - 06 Jan	KLM
16 Dec - 05 Jan	KLM
17 Dec - 06 Jan	KLM
06 Dec - 08 Dec	KLM
05 Dec - 08 Dec	KLM
05 Dec - 07 Dec	KLM
13 Dec - 18 Dec	KLM
10 Dec - 17 Dec	KLM
10 Dec - 18 Dec	KLM
04 Dec - 08 Dec	KLM
04 Dec - 07 Dec	KLM
06 Dec - 09 Dec	KLM
04 Dec - 09 Dec	KLM
15 Dec - 06 Jan	KLM
16 Dec - 04 Jan	KLM
18 Dec - 03 Jan	KLM
19 Dec - 14 Jan	KLM
19 Dec - 03 Jan	KLM
21 Dec - 14 Jan	KLM

Also check the deals for one-way flights from London to Billund in December.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

Book a cheap hotel in Billund

Cheap car rent in Billund

Cheapest return flights from London to Billund in December from 192€

Return flights