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

Return flights

03 Dec - 16 Dec	China Southern
01 Dec - 08 Dec	China Southern
01 Dec - 15 Dec	China Southern
02 Dec - 24 Dec	Air China
06 Dec - 31 Dec	Air China
02 Dec - 23 Dec	Air China
02 Dec - 16 Dec	Air China
03 Dec - 17 Dec	Air China
01 Dec - 11 Dec	Air China
03 Dec - 21 Dec	China Southern
30 Dec - 16 Jan	Air China
08 Dec - 22 Jan	Etihad Airways
05 Dec - 17 Jan	Malaysia Airlines	direct
03 Dec - 14 Jan	Malaysia Airlines	direct
08 Dec - 22 Jan	Malaysia Airlines	direct
30 Dec - 18 Jan	Air China
06 Dec - 01 Jan	Thai Airways
31 Dec - 21 Jan	Thai Airways
04 Dec - 10 Jan	Thai Airways
29 Dec - 12 Jan	Thai 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 $605

Return flights