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

Return flights

25 Jan - 27 Feb	Air China
29 Jan - 28 Feb	China Southern
30 Jan - 18 Feb	Tianjin Airlines
21 Jan - 05 Feb	Air China
30 Jan - 28 Feb	China Southern
29 Jan - 05 Feb	Air China
30 Jan - 09 Feb	Air China
20 Jan - 01 Feb	China Eastern
21 Jan - 31 Jan	China Eastern
25 Jan - 01 Feb	China Eastern
29 Jan - 07 Feb	Air China
22 Jan - 31 Jan	China Eastern
26 Jan - 31 Jan	China Eastern
22 Jan - 29 Jan	Air China
19 Jan - 29 Jan	Air China
18 Jan - 29 Jan	Air China
27 Jan - 31 Jan	Air China
19 Jan - 26 Jan	Air China
23 Jan - 26 Jan	Air China
25 Jan - 31 Jan	China Eastern

Also check the deals for one-way flights from Sydney to London 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 Sydney to London in January from 688€

Return flights