AirHint found the following cheapest return flights from London (LGW) to Sydney (SYD) in October 2025 (see full year).

Return flights

28 Oct - 10 Nov	China Southern
14 Oct - 07 Nov	China Southern
27 Oct - 18 Nov	China Eastern
20 Oct - 09 Nov	Wizz Air UK
27 Oct - 16 Nov	China Eastern
25 Oct - 14 Nov	China Southern
25 Oct - 16 Nov	China Southern
28 Oct - 09 Nov	Wizz Air Malta
15 Oct - 22 Oct	Wizz Air Malta
21 Oct - 14 Nov	China Southern
26 Oct - 15 Nov	China Eastern
15 Oct - 28 Oct	Wizz Air Malta
01 Oct - 29 Oct	Wizz Air Malta
11 Oct - 25 Oct	Wizz Air UK
04 Oct - 29 Oct	Wizz Air Malta
03 Oct - 23 Oct	China Southern
05 Oct - 26 Oct	Wizz Air UK
03 Oct - 22 Oct	China Southern
02 Oct - 09 Oct	easyJet
02 Oct - 19 Oct	China Eastern

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

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 October from $822

Return flights