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

Return flights

20 Sep - 28 Sep	Hawaiian Airlines
24 Sep - 12 Oct	Air New Zealand
17 Sep - 30 Sep	Air New Zealand
23 Sep - 30 Sep	Air New Zealand
29 Sep - 13 Oct	Air New Zealand
23 Sep - 15 Oct	Air New Zealand
24 Sep - 15 Oct	Air New Zealand
22 Sep - 22 Oct	Air New Zealand
25 Sep - 07 Oct	Air New Zealand
24 Sep - 24 Oct	Air New Zealand
30 Sep - 11 Oct	Air New Zealand
20 Sep - 27 Sep	Air New Zealand
17 Sep - 24 Sep	Air New Zealand
19 Sep - 10 Oct	Air New Zealand
19 Sep - 28 Sep	Air New Zealand
28 Sep - 12 Oct	Air New Zealand
25 Sep - 29 Sep	Air New Zealand
18 Sep - 27 Sep	Air New Zealand
25 Sep - 28 Sep	Air New Zealand
22 Sep - 27 Sep	Air New Zealand

Also check the deals for one-way flights from Santa Ana to Sydney in September.

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 September from $1164

Return flights