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

Return flights

03 Sep - 10 Sep	Kenya Airways
03 Sep - 13 Sep	Kenya Airways
09 Sep - 16 Sep	Kenya Airways
03 Sep - 12 Sep	Kenya Airways
23 Sep - 29 Sep	British Airways
11 Sep - 16 Sep	British Airways
05 Sep - 11 Sep	British Airways
05 Sep - 12 Sep	British Airways
04 Sep - 11 Sep	British Airways
05 Sep - 14 Sep	British Airways
29 Sep - 13 Oct	SWISS
29 Sep - 06 Oct	SWISS
29 Sep - 07 Oct	SWISS
29 Sep - 14 Oct	SWISS

Also check the deals for one-way flights from London 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 London to Zanzibar in September from $919

Return flights