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

Return flights

05 Dec - 07 Dec	AirAsia
24 Dec - 08 Jan	Malaysia Airlines
13 Dec - 29 Dec	AirAsia
25 Dec - 29 Dec	AirAsia
24 Dec - 31 Dec	Batik Air Malaysia
20 Dec - 03 Jan	AirAsia
19 Dec - 03 Jan	AirAsia
27 Dec - 01 Jan	Cathay Pacific
25 Dec - 02 Jan	Qatar Airways
22 Dec - 05 Jan	Qatar Airways
18 Dec - 30 Dec	Qatar Airways
17 Dec - 27 Dec	AirAsia
28 Dec - 02 Jan	Qatar Airways
13 Dec - 30 Dec	Etihad Airways
15 Dec - 22 Dec	Qatar Airways
16 Dec - 23 Dec	British Airways
27 Dec - 02 Jan	British Airways
19 Dec - 02 Jan	Qatar Airways
25 Dec - 03 Jan	Qatar Airways
10 Dec - 20 Dec	Malaysia Airlines

Also check the deals for one-way flights from Penang 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.

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Cheapest return flights from Penang to London in December from $749

Return flights