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

Return flights

01 Sep - 29 Sep	Kenya Airways
01 Sep - 28 Sep	Kenya Airways
09 Sep - 23 Sep	SWISS
03 Sep - 30 Sep	Lufthansa
09 Sep - 22 Sep	SWISS
06 Sep - 21 Sep	Lufthansa
01 Sep - 16 Sep	SWISS
01 Sep - 09 Sep	SWISS
01 Sep - 17 Sep	SWISS
01 Sep - 08 Sep	SWISS
10 Sep - 08 Oct	SWISS
24 Sep - 18 Oct	KLM
17 Sep - 12 Oct	KLM
21 Sep - 05 Oct	SWISS
24 Sep - 13 Oct	KLM
22 Sep - 06 Oct	SWISS
10 Sep - 01 Oct	SWISS
16 Sep - 10 Oct	KLM
30 Sep - 08 Oct	Lufthansa
23 Sep - 15 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 700€

Return flights