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

Return flights

10 Sep - 18 Sep	Ethiopian Airlines
20 Sep - 25 Sep	Ethiopian Airlines
13 Sep - 20 Sep	Ethiopian Airlines
18 Sep - 25 Sep	Ethiopian Airlines
03 Sep - 11 Sep	Ethiopian Airlines
09 Sep - 14 Sep	Ethiopian Airlines
09 Sep - 12 Sep	Ethiopian Airlines
20 Sep - 27 Sep	Ethiopian Airlines
02 Sep - 09 Sep	Ethiopian Airlines
18 Sep - 26 Sep	Ethiopian Airlines
29 Sep - 04 Oct	Ethiopian Airlines
26 Sep - 06 Oct	Kenya Airways
27 Sep - 10 Oct	FlySafair

Also check the deals for one-way flights from Cape Town to Zanzibar 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 Zanzibar in September from $468

Return flights