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

Return flights

10 Sep - 16 Sep	Ryanair
24 Sep - 12 Oct	Ryanair
24 Sep - 08 Oct	Ryanair
23 Sep - 07 Oct	Ryanair
30 Sep - 07 Oct	Ryanair
11 Sep - 17 Sep	Ryanair
22 Sep - 26 Sep	Ryanair
16 Sep - 19 Sep	Ryanair
22 Sep - 07 Oct	Ryanair
24 Sep - 01 Oct	Ryanair
23 Sep - 02 Oct	Ryanair
18 Sep - 25 Sep	Ryanair
25 Sep - 14 Oct	Pegasus Airlines
10 Sep - 21 Sep	Ryanair
10 Sep - 26 Sep	Ryanair
14 Sep - 22 Sep	Ryanair
21 Sep - 28 Sep	Ryanair
25 Sep - 09 Oct	Ryanair
29 Sep - 05 Oct	Ryanair
16 Sep - 24 Sep	Ryanair

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 520€

Return flights