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

Return flights

30 Aug - 20 Sep	Kenya Airways
31 Aug - 21 Sep	Kenya Airways
20 Aug - 15 Sep	Kenya Airways
30 Aug - 21 Sep	Kenya Airways
20 Aug - 12 Sep	Kenya Airways
30 Aug - 12 Sep	Kenya Airways
24 Aug - 17 Sep	Kenya Airways
30 Aug - 16 Sep	Kenya Airways
28 Aug - 11 Sep	Kenya Airways
20 Aug - 14 Sep	Kenya Airways
11 Aug - 20 Aug	KLM
12 Aug - 25 Aug	KLM
11 Aug - 25 Aug	KLM
07 Aug - 11 Aug	British Airways
06 Aug - 13 Aug	KLM
18 Aug - 25 Aug	KLM
18 Aug - 24 Aug	KLM
04 Aug - 11 Aug	KLM
11 Aug - 19 Aug	KLM
08 Aug - 18 Aug	British Airways

Also check the deals for one-way flights from London to Zanzibar in August.

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 August from $806

Return flights