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

Return flights

11 Sep - 17 Sep	Kenya Airways
20 Sep - 28 Sep	Kenya Airways
08 Sep - 17 Sep	Kenya Airways
18 Sep - 28 Sep	Kenya Airways
15 Sep - 26 Sep	Kenya Airways
22 Sep - 28 Sep	Kenya Airways
22 Sep - 01 Oct	Kenya Airways
20 Sep - 03 Oct	Kenya Airways
11 Sep - 21 Sep	Kenya Airways
13 Sep - 17 Sep	Kenya Airways
15 Sep - 21 Sep	Kenya Airways
20 Sep - 05 Oct	Kenya Airways
15 Sep - 30 Sep	Kenya Airways
18 Sep - 02 Oct	Kenya Airways
27 Sep - 11 Oct	Kenya Airways
20 Sep - 04 Oct	Kenya Airways
30 Sep - 13 Oct	Ethiopian Airlines
26 Sep - 07 Oct	Kenya Airways
24 Sep - 08 Oct	Kenya Airways
16 Sep - 03 Oct	AJet

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 $721

Return flights