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

Return flights

29 Sep - 09 Oct	KLM
02 Sep - 14 Sep	KLM
03 Sep - 10 Sep	KLM
04 Sep - 21 Sep	KLM
04 Sep - 13 Sep	KLM
09 Sep - 21 Sep	KLM
01 Sep - 15 Sep	Kenya Airways
16 Sep - 23 Sep	Kenya Airways
03 Sep - 25 Sep	Kenya Airways
07 Sep - 13 Sep	Kenya Airways
07 Sep - 12 Sep	Kenya Airways
30 Sep - 09 Oct	Kenya Airways
23 Sep - 09 Oct	KLM
24 Sep - 05 Oct	Kenya Airways
23 Sep - 07 Oct	Kenya Airways
23 Sep - 02 Oct	Kenya Airways
25 Sep - 06 Oct	KLM
23 Sep - 10 Oct	KLM
24 Sep - 03 Oct	KLM
12 Sep - 03 Oct	KLM

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 687€

Return flights