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

Return flights

30 Sep - 19 Oct	Vueling Airlines
16 Sep - 30 Sep	KLM
19 Sep - 30 Sep	KLM
15 Sep - 25 Sep	KLM
16 Sep - 24 Sep	KLM
12 Sep - 28 Sep	KLM
19 Sep - 29 Sep	KLM
06 Sep - 21 Sep	KLM
17 Sep - 28 Oct	KLM
19 Sep - 04 Oct	KLM
19 Sep - 07 Oct	KLM
03 Sep - 10 Sep	KLM
13 Sep - 21 Sep	KLM
10 Sep - 15 Oct	Air France
05 Sep - 20 Sep	KLM
15 Sep - 05 Oct	KLM
30 Sep - 21 Oct	Turkish Airlines
26 Sep - 20 Oct	KLM
19 Sep - 06 Oct	Turkish Airlines
27 Sep - 11 Oct	Turkish Airlines

Also check the deals for one-way flights from Dublin to Cape Town 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 Cape Town in September from 562€

Return flights