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

Return flights

01 Dec - 07 Dec	China Southern
02 Dec - 22 Jan	China Southern
02 Dec - 20 Jan	Air China
04 Dec - 15 Jan	Air China
08 Dec - 25 Jan	Shenzhen Airlines
04 Dec - 22 Jan	China Southern
06 Dec - 18 Jan	Air China
01 Dec - 31 Jan	Shenzhen Airlines
09 Dec - 20 Jan	Lufthansa
01 Dec - 08 Dec	Air China
27 Dec - 16 Jan	Air China
08 Dec - 11 Jan	Air China
02 Dec - 09 Dec	Air China
04 Dec - 22 Dec	China Southern
01 Dec - 11 Dec	China Southern
06 Dec - 20 Dec	China Southern
06 Dec - 27 Dec	China Southern
03 Dec - 14 Dec	Vueling Airlines
05 Dec - 12 Dec	China Southern
04 Dec - 13 Dec	Aegean Airlines

Also check the deals for one-way flights from London to Perth 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 Perth in December from $796

Return flights