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

Return flights

16 Jan - 05 Feb	Air China
27 Jan - 09 Feb	Air China
12 Jan - 03 Feb	Air China
22 Jan - 03 Feb	Air China
22 Jan - 05 Feb	Air China
19 Jan - 05 Feb	Air China
14 Jan - 03 Feb	Air China
28 Jan - 05 Feb	Air China
21 Jan - 05 Feb	Air China
26 Jan - 02 Feb	Air China
06 Jan - 28 Jan	Air China
02 Jan - 23 Jan	China Southern
02 Jan - 22 Jan	China Southern
02 Jan - 30 Jan	China Southern
02 Jan - 24 Jan	China Southern
02 Jan - 25 Jan	China Southern
13 Jan - 31 Jan	China Southern
12 Jan - 23 Jan	Air China
12 Jan - 24 Jan	Air China
13 Jan - 24 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 667€

Return flights