AirHint found the following cheapest return flights from London (LHR) to Sydney (SYD) in January 2026 (see full year).

Return flights

13 Jan - 03 Feb	China Eastern
04 Jan - 20 Jan	China Southern
04 Jan - 27 Jan	China Southern
25 Jan - 16 Feb	Hainan Airlines
05 Jan - 22 Jan	China Southern
05 Jan - 21 Jan	China Southern
05 Jan - 03 Feb	China Southern
05 Jan - 20 Jan	China Southern
05 Jan - 26 Jan	China Southern
05 Jan - 02 Feb	China Southern
04 Jan - 16 Jan	China Southern
29 Jan - 19 Feb	Aegean Airlines
05 Jan - 17 Jan	China Southern
05 Jan - 13 Jan	China Southern
06 Jan - 16 Jan	China Southern
29 Jan - 18 Feb	Aegean Airlines
11 Jan - 02 Feb	China Eastern
11 Jan - 05 Feb	China Eastern
16 Jan - 03 Feb	China Southern
29 Jan - 06 Feb	Aegean Airlines

Also check the deals for one-way flights from London to Sydney in January.

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 Sydney in January from $971

Return flights