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

Return flights

03 Dec - 11 Jan	British Airways
03 Dec - 13 Jan	British Airways
03 Dec - 15 Jan	British Airways
03 Dec - 14 Jan	British Airways
04 Dec - 18 Jan	British Airways
14 Dec - 15 Jan	Lufthansa
03 Dec - 10 Dec	British Airways
10 Dec - 28 Dec	British Airways
03 Dec - 27 Dec	British Airways
09 Dec - 28 Dec	British Airways
03 Dec - 14 Dec	British Airways
10 Dec - 27 Dec	British Airways
04 Dec - 22 Jan	KLM
28 Dec - 14 Jan	British Airways
29 Dec - 15 Jan	British Airways
28 Dec - 17 Jan	British Airways
11 Dec - 30 Dec	British Airways
02 Dec - 16 Dec	British Airways
09 Dec - 16 Dec	British Airways
11 Dec - 29 Dec	British Airways

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 1221€

Return flights