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

Return flights

10 Sep - 19 Sep	Scoot
11 Sep - 18 Sep	Scoot
09 Sep - 21 Sep	Scoot
09 Sep - 11 Sep	Scoot
11 Sep - 15 Sep	Scoot
09 Sep - 17 Sep	Scoot
11 Sep - 17 Sep	Scoot
11 Sep - 14 Sep	Scoot
07 Sep - 14 Sep	Scoot
22 Sep - 24 Sep	Scoot
04 Sep - 30 Oct	Scoot
11 Sep - 19 Oct	Scoot
04 Sep - 30 Oct	AirAsia X	direct
22 Sep - 02 Oct	Scoot
12 Sep - 02 Oct	AirAsia X	direct
28 Sep - 18 Oct	AirAsia X	direct
13 Sep - 02 Oct	AirAsia X	direct
17 Sep - 02 Oct	AirAsia X	direct
16 Sep - 02 Oct	AirAsia X	direct
14 Sep - 02 Oct	AirAsia X	direct

Also check the deals for one-way flights from Sydney to Kuala Lumpur in September.

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 September from $320

Return flights