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

Return flights

03 Dec - 07 Dec	Jetstar	direct
10 Dec - 11 Jan	Jetstar	direct
05 Dec - 09 Dec	Jetstar
05 Dec - 07 Dec	Jetstar
02 Dec - 05 Dec	Jetstar
02 Dec - 07 Dec	Jetstar
05 Dec - 07 Dec	Jetstar	direct
06 Dec - 07 Dec	Jetstar	direct
05 Dec - 09 Dec	Jetstar	direct
04 Dec - 07 Dec	Jetstar
04 Dec - 09 Dec	Jetstar
17 Dec - 18 Jan	Jetstar	direct
17 Dec - 11 Jan	Jetstar	direct
20 Dec - 11 Jan	Jetstar	direct
03 Dec - 26 Jan	Jetstar
26 Dec - 09 Jan	Jetstar	direct
23 Dec - 11 Jan	Jetstar	direct
10 Dec - 06 Jan	Jetstar	direct
27 Dec - 12 Jan	Jetstar	direct
26 Dec - 06 Jan	Jetstar	direct

Also check the deals for one-way flights from Auckland 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 Auckland to Sydney in December from $315

Return flights