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

Return flights

05 Dec - 16 Dec	Indonesia AirAsia
29 Dec - 31 Jan	Qatar Airways
31 Dec - 27 Jan	Qatar Airways
28 Dec - 10 Jan	China Southern
29 Dec - 17 Jan	China Southern
08 Dec - 30 Dec	Malaysia Airlines
02 Dec - 09 Dec	Malaysia Airlines
08 Dec - 29 Dec	Malaysia Airlines
03 Dec - 03 Jan	Malaysia Airlines
25 Dec - 27 Jan	Qatar Airways
27 Dec - 09 Jan	China Southern
27 Dec - 03 Jan	China Southern
08 Dec - 10 Jan	China Southern
02 Dec - 23 Dec	Malaysia Airlines
08 Dec - 31 Dec	Malaysia Airlines
08 Dec - 04 Jan	Malaysia Airlines
15 Dec - 30 Dec	Malaysia Airlines
01 Dec - 16 Dec	Malaysia Airlines
04 Dec - 27 Dec	Cathay Pacific
02 Dec - 31 Dec	Virgin Australia

Also check the deals for one-way flights from Perth 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 Perth to London in December from $1189

Return flights