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

Return flights

22 Sep - 27 Sep	Air France
25 Sep - 03 Oct	British Airways
26 Sep - 02 Oct	Eurowings
25 Sep - 16 Oct	EgyptAir
22 Sep - 06 Oct	Air France
24 Sep - 30 Sep	KLM
24 Sep - 06 Oct	Air France
23 Sep - 20 Oct	Ethiopian Airlines
23 Sep - 06 Oct	Air France
29 Sep - 06 Oct	Air France
28 Sep - 05 Oct	KLM
28 Sep - 11 Oct	KLM
25 Sep - 30 Sep	KLM
23 Sep - 30 Sep	KLM
24 Sep - 28 Sep	Ethiopian Airlines
25 Sep - 28 Sep	Scandinavian Airlines
22 Sep - 30 Sep	Scandinavian Airlines
22 Sep - 29 Sep	Scandinavian Airlines
23 Sep - 29 Sep	Turkish Airlines
24 Sep - 29 Sep	Turkish Airlines

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 624€

Return flights