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

Return flights

18 Sep - 01 Oct	KLM
08 Sep - 18 Sep	KLM
09 Sep - 30 Sep	KLM
11 Sep - 18 Sep	Air France
02 Sep - 22 Sep	KLM
03 Sep - 15 Sep	KLM
11 Sep - 23 Sep	KLM
02 Sep - 25 Sep	KLM
02 Sep - 23 Sep	KLM
01 Sep - 30 Sep	KLM
01 Sep - 22 Sep	KLM
26 Sep - 06 Oct	Lufthansa

Also check the deals for one-way flights from Cape Town to Athens 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 Cape Town to Athens in September from $686

Return flights