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

One-Way flights

13 Oct	Hawaiian Airlines
22 Oct	Air New Zealand
20 Oct	Air New Zealand
21 Oct	Air New Zealand
03 Oct	Philippine Airlines
02 Oct	Philippine Airlines
23 Oct	Philippine Airlines
26 Oct	Qantas
19 Oct	Qantas
08 Oct	Air New Zealand

Also check the deals for return 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 one-way flights from Santa Ana to Sydney in October from $735

One-Way flights