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

Return flights

07 Dec - 15 Dec	Scoot
03 Dec - 08 Dec	Scoot
03 Dec - 15 Dec	Scoot
03 Dec - 09 Dec	Scoot
03 Dec - 07 Dec	Scoot
07 Dec - 14 Dec	Scoot
03 Dec - 14 Dec	AirAsia X	direct
03 Dec - 15 Dec	AirAsia X	direct
03 Dec - 06 Dec	AirAsia X	direct
03 Dec - 08 Dec	AirAsia X	direct
03 Dec - 27 Jan	AirAsia X
05 Dec - 19 Jan	Scoot
03 Dec - 20 Jan	Scoot
04 Dec - 20 Jan	Scoot
02 Dec - 20 Jan	Scoot
10 Dec - 02 Jan	Scoot
09 Dec - 06 Jan	Scoot
09 Dec - 07 Jan	Scoot
15 Dec - 01 Jan	AirAsia X	direct
14 Dec - 01 Jan	AirAsia X	direct

Also check the deals for one-way flights from Sydney to Kuala Lumpur 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 Kuala Lumpur in December from 350€

Return flights