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

Return flights

01 Dec - 31 Jan	Cathay Pacific
03 Dec - 08 Dec	Air India
02 Dec - 04 Jan	Royal Brunei
04 Dec - 05 Jan	Air India
01 Dec - 07 Jan	Air India
04 Dec - 04 Jan	Air India
01 Dec - 04 Jan	Air India
02 Dec - 02 Jan	Air India
02 Dec - 03 Jan	Air India
01 Dec - 02 Jan	Air India
01 Dec - 03 Jan	Air India
02 Dec - 28 Dec	Cathay Pacific
24 Dec - 31 Dec	Turkish Airlines
22 Dec - 29 Dec	Turkish Airlines
01 Dec - 14 Dec	Turkish Airlines
24 Dec - 29 Dec	Turkish Airlines
09 Dec - 30 Dec	Air India
02 Dec - 17 Dec	Qantas
01 Dec - 17 Dec	Qantas
01 Dec - 08 Dec	British Airways

Also check the deals for one-way flights from Melbourne 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 Melbourne to London in December from $1204

Return flights