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

Return flights

09 Sep - 07 Oct	SWISS
08 Sep - 07 Oct	SWISS
19 Sep - 10 Oct	EgyptAir
07 Sep - 18 Sep	Etihad Airways
21 Sep - 01 Oct	Etihad Airways
23 Sep - 29 Sep	RwandAir
22 Sep - 28 Sep	RwandAir
23 Sep - 28 Sep	RwandAir
03 Sep - 17 Sep	Etihad Airways
04 Sep - 18 Sep	Etihad Airways
03 Sep - 25 Sep	Etihad Airways
01 Sep - 16 Sep	Etihad Airways
02 Sep - 15 Sep	Etihad Airways
21 Sep - 30 Sep	Etihad Airways
21 Sep - 07 Oct	Etihad Airways
21 Sep - 02 Oct	Etihad Airways
23 Sep - 07 Oct	Etihad Airways
15 Sep - 01 Oct	Etihad Airways
23 Sep - 01 Oct	Etihad Airways
29 Sep - 09 Oct	Etihad Airways

Also check the deals for one-way flights from London to Johannesburg 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 London to Johannesburg in September from $660

Return flights