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

Return flights

31 Oct - 07 Nov	American Airlines
13 Oct - 18 Oct	Hawaiian Airlines
20 Oct - 29 Oct	Air New Zealand
22 Oct - 12 Nov	Air New Zealand
14 Oct - 02 Nov	Air New Zealand
20 Oct - 04 Nov	Air New Zealand
15 Oct - 22 Oct	Air New Zealand
15 Oct - 22 Nov	Air New Zealand
20 Oct - 30 Oct	Air New Zealand
22 Oct - 01 Nov	Air New Zealand
15 Oct - 30 Oct	Air New Zealand
31 Oct - 11 Nov	Air New Zealand
21 Oct - 04 Nov	Air New Zealand
26 Oct - 09 Nov	Air New Zealand
24 Oct - 31 Oct	Air New Zealand
30 Oct - 07 Nov	Air New Zealand
15 Oct - 24 Oct	Air New Zealand
20 Oct - 27 Oct	Air New Zealand
14 Oct - 28 Oct	Air New Zealand
06 Oct - 13 Oct	Air New Zealand

Also check the deals for one-way flights from Santa Ana 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 Santa Ana to Sydney in October from $939

Return flights