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

Return flights

23 Sep - 03 Oct	Aer Lingus
29 Sep - 06 Oct	Ryanair
06 Sep - 24 Sep	KLM
04 Sep - 22 Sep	KLM
07 Sep - 25 Sep	KLM
04 Sep - 18 Sep	KLM
08 Sep - 22 Sep	KLM
10 Sep - 21 Sep	KLM
02 Sep - 21 Sep	KLM
06 Sep - 20 Sep	KLM
25 Sep - 09 Oct	KLM
20 Sep - 20 Oct	KLM
20 Sep - 08 Oct	KLM
25 Sep - 07 Oct	KLM
19 Sep - 11 Oct	KLM
17 Sep - 13 Oct	KLM
26 Sep - 22 Oct	KLM
08 Sep - 06 Oct	KLM
16 Sep - 21 Sep	KLM
02 Sep - 17 Sep	SWISS

Also check the deals for one-way flights from Birmingham 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 Birmingham to Johannesburg in September from 570€

Return flights