AirHint found the following cheapest return flights from London (LCY) to Perth (PER) in December 2026 (see full year).

Return flights

01 Dec - 06 Dec	SWISS
07 Dec - 28 Dec	British Airways
04 Dec - 07 Dec	British Airways
02 Dec - 28 Dec	British Airways
01 Dec - 09 Dec	British Airways
07 Dec - 27 Dec	British Airways
08 Dec - 03 Jan	Air Dolomiti
09 Dec - 05 Jan	SWISS
26 Dec - 02 Jan	ITA Airways
10 Dec - 02 Jan	KLM
04 Dec - 05 Jan	SWISS
14 Dec - 28 Dec	Air Dolomiti
10 Dec - 17 Dec	British Airways
18 Dec - 05 Jan	Lufthansa
10 Dec - 31 Dec	SWISS
03 Dec - 17 Dec	British Airways
25 Dec - 02 Jan	ITA Airways
18 Dec - 03 Jan	Lufthansa
30 Dec - 06 Jan	Lufthansa
02 Dec - 05 Jan	Lufthansa

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 944€

Return flights