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

Return flights

06 Sep - 21 Sep	KLM
02 Sep - 16 Sep	KLM
02 Sep - 10 Sep	KLM
10 Sep - 17 Sep	KLM
06 Sep - 15 Sep	KLM
03 Sep - 17 Sep	KLM
21 Sep - 05 Oct	Air France
10 Sep - 21 Sep	KLM
03 Sep - 24 Sep	KLM
03 Sep - 09 Sep	KLM
05 Sep - 15 Sep	KLM
14 Sep - 13 Oct	KLM
06 Sep - 06 Oct	KLM
07 Sep - 05 Oct	KLM
06 Sep - 05 Oct	KLM
07 Sep - 06 Oct	KLM
23 Sep - 12 Oct	KLM
09 Sep - 07 Oct	KLM
14 Sep - 11 Oct	KLM
27 Sep - 06 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 519€

Return flights