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

Return flights

01 Dec - 08 Dec	AirAsia
24 Dec - 22 Jan	Indonesia AirAsia
10 Dec - 11 Jan	Indonesia AirAsia
10 Dec - 15 Jan	Indonesia AirAsia
08 Dec - 19 Jan	Indonesia AirAsia
18 Dec - 30 Jan	AirAsia
28 Dec - 24 Jan	AirAsia
28 Dec - 22 Jan	AirAsia
08 Dec - 27 Dec	Indonesia AirAsia
02 Dec - 15 Jan	Indonesia AirAsia
14 Dec - 14 Jan	Indonesia AirAsia
03 Dec - 06 Jan	Malaysia Airlines
11 Dec - 31 Dec	Indonesia AirAsia
03 Dec - 24 Dec	Batik Air Malaysia
02 Dec - 08 Dec	Cathay Pacific
24 Dec - 30 Dec	TransNusa
04 Dec - 28 Dec	Scoot
12 Dec - 31 Dec	AirAsia
10 Dec - 29 Dec	Malaysia Airlines
22 Dec - 29 Dec	Indonesia AirAsia

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 848€

Return flights