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

Return flights

11 Aug - 17 Sep	KLM
11 Aug - 16 Sep	KLM
22 Aug - 16 Sep	KLM
15 Aug - 17 Sep	KLM
26 Aug - 09 Sep	KLM
25 Aug - 24 Sep	KLM
26 Aug - 23 Sep	KLM
22 Aug - 21 Sep	KLM
10 Aug - 09 Sep	KLM
20 Aug - 10 Sep	KLM
06 Aug - 12 Aug	ITA Airways
20 Aug - 26 Aug	SWISS
21 Aug - 31 Aug	KLM
14 Aug - 31 Aug	KLM
13 Aug - 31 Aug	KLM
10 Aug - 31 Aug	KLM
22 Aug - 31 Aug	KLM
25 Aug - 31 Aug	KLM
09 Aug - 31 Aug	KLM
26 Aug - 31 Aug	KLM

Also check the deals for one-way flights from London to Johannesburg in August.

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 August from $755

Return flights