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

Return flights

02 Dec - 09 Dec	Scoot
04 Dec - 14 Dec	Batik Air Malaysia
02 Dec - 09 Dec	Qantas	direct
04 Dec - 14 Dec	Qantas	direct
02 Dec - 23 Dec	Scoot
02 Dec - 23 Dec	Qantas	direct
08 Dec - 22 Dec	Scoot
01 Dec - 14 Dec	AirAsia X
01 Dec - 09 Dec	AirAsia X
01 Dec - 11 Dec	AirAsia X
07 Dec - 15 Jan	Scoot
07 Dec - 15 Jan	Garuda Indonesia	direct
08 Dec - 06 Jan	Scoot
30 Dec - 15 Jan	Garuda Indonesia	direct
08 Dec - 06 Jan	Qantas	direct
10 Dec - 07 Jan	Scoot
11 Dec - 11 Jan	Scoot
12 Dec - 08 Jan	Qantas	direct
10 Dec - 11 Jan	Qantas	direct
10 Dec - 07 Jan	Qantas	direct

Also check the deals for one-way flights from Sydney to Jakarta 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 Sydney to Jakarta in December from $449

Return flights