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

Return flights

04 Dec - 25 Dec	KLM
01 Dec - 25 Dec	KLM
02 Dec - 25 Dec	KLM
02 Dec - 23 Dec	KLM
02 Dec - 26 Jan	KLM
04 Dec - 09 Dec	KLM
01 Dec - 09 Dec	KLM
02 Dec - 09 Dec	KLM
01 Dec - 23 Dec	KLM
01 Dec - 08 Dec	KLM
04 Dec - 10 Dec	KLM
04 Dec - 21 Jan	KLM
04 Dec - 17 Jan	KLM
04 Dec - 15 Jan	KLM
06 Dec - 21 Jan	KLM
09 Dec - 20 Jan	KLM
06 Dec - 19 Jan	KLM
08 Dec - 12 Jan	KLM
10 Dec - 23 Jan	KLM
29 Dec - 26 Jan	KLM

Also check the deals for one-way flights from London to Kuala Lumpur 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 Kuala Lumpur in December from 557€

Return flights