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

Return flights

03 Dec - 10 Dec	Shenzhen Airlines
03 Dec - 31 Dec	Shenzhen Airlines
01 Dec - 14 Dec	Shenzhen Airlines
04 Dec - 10 Dec	Air China
01 Dec - 22 Dec	Shenzhen Airlines
02 Dec - 17 Dec	Air China
02 Dec - 31 Dec	Air China
04 Dec - 11 Dec	Air China
02 Dec - 14 Dec	Air China
02 Dec - 16 Dec	Air China
01 Dec - 30 Jan	SWISS
13 Dec - 13 Jan	British Airways
02 Dec - 13 Jan	Etihad Airways
13 Dec - 06 Jan	British Airways
31 Dec - 24 Jan	China Southern
10 Dec - 06 Jan	Vueling Airlines
27 Dec - 17 Jan	Air China
31 Dec - 12 Jan	Shenzhen Airlines
06 Dec - 13 Jan	Etihad Airways
15 Dec - 31 Jan	British Airways

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 $620

Return flights