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

Return flights

03 Sep - 19 Sep	Wizz Air Malta
22 Sep - 08 Oct	Ethiopian Airlines
03 Sep - 10 Sep	Vueling Airlines
08 Sep - 15 Sep	Norwegian
09 Sep - 16 Sep	Norwegian
22 Sep - 06 Oct	SWISS
18 Sep - 05 Oct	Ethiopian Airlines
04 Sep - 21 Sep	Kenya Airways
18 Sep - 26 Sep	Kenya Airways
11 Sep - 26 Sep	Kenya Airways
25 Sep - 28 Sep	Kenya Airways
08 Sep - 21 Sep	Kenya Airways
06 Sep - 28 Sep	Kenya Airways
13 Sep - 12 Oct	Kenya Airways
18 Sep - 01 Oct	Kenya Airways
25 Sep - 01 Oct	Kenya Airways
29 Sep - 12 Oct	Kenya Airways
30 Sep - 05 Oct	Ethiopian Airlines
20 Sep - 05 Oct	Kenya Airways
27 Sep - 12 Oct	Kenya 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 545€

Return flights