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

Return flights

07 Dec - 14 Dec	AirAsia
08 Dec - 15 Dec	AirAsia
15 Dec - 29 Jan	AirAsia
11 Dec - 18 Dec	AirAsia
07 Dec - 18 Jan	Indonesia AirAsia
09 Dec - 21 Jan	Indonesia AirAsia
11 Dec - 25 Jan	AirAsia
08 Dec - 22 Jan	Indonesia AirAsia
09 Dec - 12 Jan	Indonesia AirAsia
07 Dec - 11 Jan	Indonesia AirAsia
11 Dec - 26 Jan	Indonesia AirAsia
10 Dec - 12 Jan	Jetstar
10 Dec - 10 Jan	AirAsia
10 Dec - 28 Dec	AirAsia
09 Dec - 13 Dec	AirAsia
10 Dec - 11 Dec	Indonesia AirAsia
09 Dec - 28 Dec	Indonesia AirAsia
07 Dec - 28 Dec	Batik Air Malaysia
12 Dec - 28 Dec	AirAsia
15 Dec - 28 Dec	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 880€

Return flights