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

Return flights

29 Dec - 28 Jan	Air China
03 Dec - 12 Jan	China Southern
29 Dec - 30 Jan	China Eastern
04 Dec - 22 Dec	China Southern
07 Dec - 29 Jan	China Southern
07 Dec - 25 Jan	China Southern
29 Dec - 24 Jan	Air China
29 Dec - 20 Jan	China Eastern
02 Dec - 09 Dec	China Southern
08 Dec - 23 Jan	China Southern
27 Dec - 31 Jan	China Southern
02 Dec - 14 Dec	China Southern
02 Dec - 10 Dec	China Southern
01 Dec - 15 Dec	China Southern
01 Dec - 14 Dec	China Southern
02 Dec - 16 Dec	China Southern
02 Dec - 15 Dec	China Southern
02 Dec - 08 Dec	China Southern
04 Dec - 29 Dec	China Southern
24 Dec - 14 Jan	China Southern

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.

Book a cheap hotel in Melbourne

Cheap car rent in Melbourne

Cheapest return flights from London to Melbourne in December from $853

Return flights