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

Return flights

01 Dec - 24 Jan	Air New Zealand
04 Dec - 15 Dec	Air New Zealand
25 Dec - 01 Jan	Air New Zealand
25 Dec - 10 Jan	Air New Zealand
13 Dec - 11 Jan	Air New Zealand
26 Dec - 09 Jan	Air New Zealand
06 Dec - 20 Dec	Air New Zealand
24 Dec - 07 Jan	Qantas
27 Dec - 28 Jan	Air New Zealand
29 Dec - 12 Jan	Air New Zealand
28 Dec - 15 Jan	Qantas
07 Dec - 05 Jan	Air New Zealand
22 Dec - 30 Dec	Air New Zealand
17 Dec - 29 Dec	Air New Zealand
20 Dec - 31 Dec	Air New Zealand
22 Dec - 31 Dec	Air New Zealand
20 Dec - 30 Dec	Air New Zealand

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

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 December from $1449

Return flights