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

Return flights

04 Dec - 18 Jan	TransNusa
09 Dec - 11 Jan	AirAsia
07 Dec - 10 Dec	TransNusa
11 Dec - 18 Jan	TransNusa
03 Dec - 10 Dec	Indonesia AirAsia
07 Dec - 14 Dec	TransNusa
04 Dec - 14 Dec	TransNusa
01 Dec - 09 Dec	TransNusa
06 Dec - 23 Dec	TransNusa
01 Dec - 13 Dec	TransNusa
28 Dec - 19 Jan	TransNusa
11 Dec - 16 Jan	TransNusa
05 Dec - 09 Dec	TransNusa
14 Dec - 04 Jan	TransNusa
01 Dec - 06 Dec	TransNusa
13 Dec - 04 Jan	TransNusa
11 Dec - 23 Dec	TransNusa
14 Dec - 13 Jan	TransNusa
14 Dec - 09 Jan	TransNusa
10 Dec - 10 Jan	TransNusa

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 $859

Return flights