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

Return flights

08 Sep - 22 Sep	KLM
10 Sep - 14 Sep	KLM
06 Sep - 21 Sep	KLM
19 Sep - 24 Sep	KLM
03 Sep - 14 Sep	KLM
11 Sep - 24 Sep	KLM
20 Sep - 05 Oct	KLM
14 Sep - 13 Oct	KLM
06 Sep - 06 Oct	KLM
14 Sep - 11 Oct	KLM
07 Sep - 05 Oct	KLM
06 Sep - 05 Oct	KLM
23 Sep - 12 Oct	KLM
06 Sep - 28 Sep	KLM
17 Sep - 30 Oct	KLM
20 Sep - 04 Oct	KLM
13 Sep - 28 Sep	KLM
20 Sep - 27 Sep	KLM
15 Sep - 26 Sep	KLM
26 Sep - 04 Oct	KLM

Also check the deals for one-way flights from Dublin 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 Dublin to Johannesburg in September from $628

Return flights