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

Return flights

13 Sep - 20 Oct	Singapore Airlines
14 Sep - 21 Oct	Cathay Pacific
02 Sep - 09 Sep	Cathay Pacific
14 Sep - 21 Oct	Qantas	direct
04 Sep - 11 Sep	Qantas	direct
30 Sep - 12 Oct	Emirates
30 Sep - 12 Oct	Qantas	direct

Also check the deals for one-way flights from Johannesburg to Sydney 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 Johannesburg to Sydney in September from $850

Return flights