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

Return flights

01 Aug - 03 Aug	Alaska Airlines
29 Aug - 23 Sep	Air Canada
25 Aug - 02 Sep	Air New Zealand
30 Aug - 09 Sep	Air New Zealand
23 Aug - 02 Sep	Air New Zealand
26 Aug - 09 Sep	Air New Zealand
30 Aug - 07 Sep	Air New Zealand
11 Aug - 27 Aug	Air New Zealand
04 Aug - 11 Aug	Air New Zealand
12 Aug - 24 Aug	Air New Zealand
06 Aug - 18 Aug	Air New Zealand
26 Aug - 04 Sep	Air New Zealand
12 Aug - 27 Aug	Air New Zealand
19 Aug - 31 Aug	Air New Zealand
19 Aug - 26 Aug	Air New Zealand
22 Aug - 07 Sep	Air New Zealand
19 Aug - 03 Sep	Air New Zealand
19 Aug - 02 Sep	Air New Zealand
21 Aug - 31 Aug	Hawaiian Airlines
12 Aug - 18 Aug	Air New Zealand

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

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 August from $1064

Return flights