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

Return flights

28 Oct - 15 Nov	Fiji Airways
31 Oct - 11 Nov	Fiji Airways
24 Oct - 04 Nov	Fiji Airways
02 Oct - 19 Oct	Qantas
15 Oct - 29 Oct	Qantas
14 Oct - 31 Oct	Qantas
15 Oct - 24 Oct	Qantas
15 Oct - 29 Oct	Qantas	direct
14 Oct - 21 Oct	Qantas	direct
02 Oct - 19 Oct	Qantas	direct
14 Oct - 31 Oct	Qantas	direct
15 Oct - 24 Oct	Qantas	direct
28 Oct - 15 Nov	Qantas	direct
31 Oct - 11 Nov	Qantas	direct
24 Oct - 04 Nov	Qantas	direct
25 Oct - 13 Nov	Fiji Airways
12 Oct - 19 Oct	Fiji Airways
30 Oct - 13 Nov	Fiji Airways
13 Oct - 13 Nov	Qantas	direct
25 Oct - 13 Nov	Qantas	direct

Also check the deals for one-way flights from Los Angeles 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 Los Angeles to Sydney in October from $704

Return flights