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

Return flights

29 Dec - 18 Jan	SWISS
30 Dec - 25 Jan	SWISS
30 Dec - 20 Jan	SWISS
30 Dec - 27 Jan	SWISS
29 Dec - 11 Jan	SWISS
30 Dec - 22 Jan	KLM
31 Dec - 11 Jan	SWISS
30 Dec - 19 Jan	Lufthansa
28 Dec - 22 Jan	KLM
28 Dec - 20 Jan	KLM
22 Dec - 28 Dec	SWISS
23 Dec - 28 Dec	SWISS
27 Dec - 31 Dec	KLM
24 Dec - 31 Dec	SWISS
26 Dec - 30 Dec	KLM
26 Dec - 31 Dec	Lufthansa
21 Dec - 30 Dec	ITA Airways
24 Dec - 30 Dec	KLM
26 Dec - 29 Dec	Lufthansa
22 Dec - 30 Dec	KLM

Also check the deals for one-way flights from London to Plaisance 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.

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Cheapest return flights from London to Plaisance in December from $917

Return flights