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

Return flights

25 Oct - 12 Nov	Qantas
28 Oct - 04 Nov	China Eastern
24 Oct - 09 Nov	Turkish Airlines
26 Oct - 12 Nov	Turkish Airlines
25 Oct - 11 Nov	Qantas
23 Oct - 15 Nov	Turkish Airlines
25 Oct - 03 Nov	Qantas
27 Oct - 17 Nov	T'way Air
24 Oct - 10 Nov	Turkish Airlines
26 Oct - 13 Nov	Turkish Airlines
23 Oct - 30 Oct	Etihad Airways
25 Oct - 29 Oct	Qantas
24 Oct - 28 Oct	Turkish Airlines
24 Oct - 27 Oct	Turkish Airlines
23 Oct - 27 Oct	Turkish Airlines
26 Oct - 31 Oct	Turkish Airlines
23 Oct - 26 Oct	Turkish Airlines
23 Oct - 31 Oct	Turkish Airlines
25 Oct - 30 Oct	Virgin Australia
25 Oct - 31 Oct	Virgin Australia

Also check the deals for one-way flights from Sydney to London 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 Sydney to London in October from $871

Return flights