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

Return flights

15 Sep - 29 Sep	Qatar Airways
16 Sep - 30 Sep	Qatar Airways
15 Sep - 28 Sep	Qatar Airways
16 Sep - 24 Sep	KLM
18 Sep - 15 Oct	KLM
02 Sep - 16 Sep	Qatar Airways
01 Sep - 01 Oct	Qatar Airways
15 Sep - 27 Sep	KLM
17 Sep - 27 Sep	Qatar Airways
11 Sep - 19 Sep	Qatar Airways
07 Sep - 21 Sep	KLM
14 Sep - 19 Sep	Qatar Airways
19 Sep - 03 Oct	KLM
20 Sep - 03 Oct	KLM
26 Sep - 04 Oct	Qatar Airways
23 Sep - 04 Oct	KLM
13 Sep - 04 Oct	KLM

Also check the deals for one-way flights from Cape Town to Istanbul 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 Istanbul in September from $645

Return flights