AirHint found the following cheapest return flights from London (LCY) to Johannesburg (JNB) in September 2026 (see full year).

Return flights

01 Sep - 30 Sep	SWISS
01 Sep - 16 Sep	SWISS
01 Sep - 22 Sep	SWISS
13 Sep - 04 Oct	KLM
01 Sep - 21 Sep	SWISS
21 Sep - 12 Oct	KLM
10 Sep - 26 Sep	KLM
03 Sep - 10 Sep	KLM
01 Sep - 08 Sep	SWISS
20 Sep - 28 Sep	KLM
28 Sep - 09 Oct	KLM
22 Sep - 06 Oct	SWISS
11 Sep - 06 Oct	SWISS
16 Sep - 14 Oct	SWISS
16 Sep - 27 Sep	KLM
15 Sep - 06 Oct	SWISS
03 Sep - 16 Sep	Lufthansa
20 Sep - 06 Oct	SWISS
23 Sep - 08 Oct	SWISS
23 Sep - 21 Oct	SWISS

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 $952

Return flights