AirHint found the following cheapest return flights from London (LCY) to Melbourne (MEL) in December 2025 (see full year).

Return flights

02 Dec - 28 Jan	Lufthansa
04 Dec - 19 Jan	Lufthansa
04 Dec - 20 Jan	British Airways
30 Dec - 20 Jan	British Airways
09 Dec - 27 Jan	Lufthansa
01 Dec - 10 Dec	British Airways
10 Dec - 21 Jan	British Airways
04 Dec - 18 Jan	British Airways
24 Dec - 20 Jan	British Airways
05 Dec - 19 Jan	Lufthansa
01 Dec - 21 Dec	British Airways
24 Dec - 19 Jan	British Airways
10 Dec - 30 Dec	British Airways
11 Dec - 25 Dec	British Airways
02 Dec - 12 Dec	SWISS
02 Dec - 16 Dec	SWISS
01 Dec - 03 Dec	Condor
09 Dec - 16 Dec	SWISS
01 Dec - 09 Dec	Condor
04 Dec - 18 Dec	SWISS

Also check the deals for one-way flights from London to Melbourne 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 Melbourne in December from $1147

Return flights