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

Return flights

03 Dec - 14 Jan	Etihad Airways
01 Dec - 14 Jan	Etihad Airways
03 Dec - 07 Dec	Etihad Airways
07 Dec - 15 Dec	Etihad Airways
21 Dec - 15 Jan	AirAsia
01 Dec - 14 Jan	Malaysia Airlines	direct
05 Dec - 15 Dec	Etihad Airways
01 Dec - 11 Dec	Etihad Airways
18 Dec - 11 Jan	China Southern
30 Dec - 09 Jan	Oman Air
28 Dec - 19 Jan	Singapore Airlines
02 Dec - 13 Dec	Etihad Airways
02 Dec - 09 Dec	Etihad Airways
01 Dec - 08 Dec	Etihad Airways
03 Dec - 10 Dec	Etihad Airways
01 Dec - 10 Dec	Etihad Airways
07 Dec - 07 Jan	Etihad Airways
06 Dec - 15 Dec	Etihad Airways
21 Dec - 11 Jan	Oman Air
20 Dec - 07 Jan	AirAsia

Also check the deals for one-way flights from Kuala Lumpur to London 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 London

Cheap car rent in London

Cheapest return flights from Kuala Lumpur to London in December from 533€

Return flights