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

Return flights

03 Sep - 09 Sep	KLM
04 Sep - 09 Sep	KLM
22 Sep - 06 Oct	SWISS
18 Sep - 25 Sep	KLM
01 Sep - 08 Sep	KLM
16 Sep - 25 Sep	KLM
28 Sep - 05 Oct	Vueling Airlines
03 Sep - 10 Sep	KLM
03 Sep - 30 Sep	KLM
12 Sep - 18 Sep	KLM
14 Sep - 29 Sep	KLM
01 Sep - 15 Sep	KLM
20 Sep - 04 Oct	Ryanair

Also check the deals for one-way flights from Barcelona 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 Barcelona to Cape Town in September from 616€

Return flights