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

Return flights

15 Jan - 06 Feb	Air China
20 Jan - 03 Feb	Air China
01 Jan - 05 Feb	Air China
14 Jan - 03 Feb	Air China
20 Jan - 05 Feb	Air China
12 Jan - 01 Feb	Air China
14 Jan - 04 Feb	Air China
26 Jan - 07 Feb	China Eastern
19 Jan - 02 Feb	China Eastern
18 Jan - 08 Feb	China Southern
21 Jan - 28 Jan	China Southern
18 Jan - 31 Jan	China Southern
05 Jan - 20 Jan	China Southern
04 Jan - 25 Jan	China Southern
14 Jan - 28 Jan	China Southern
14 Jan - 29 Jan	Air China
12 Jan - 21 Jan	Air China
12 Jan - 25 Jan	Air China
02 Jan - 16 Jan	Air China
15 Jan - 29 Jan	Air China

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 715€

Return flights