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

Return flights

25 Aug - 03 Sep	Ethiopian Airlines
28 Aug - 11 Sep	Ryanair
26 Aug - 09 Sep	Turkish Airlines
25 Aug - 02 Sep	Turkish Airlines
09 Aug - 23 Aug	Ryanair
20 Aug - 27 Aug	Turkish Airlines
19 Aug - 27 Aug	Turkish Airlines
23 Aug - 02 Sep	Turkish Airlines
09 Aug - 11 Aug	Ethiopian Airlines
25 Aug - 04 Sep	Ethiopian Airlines
23 Aug - 31 Aug	Turkish Airlines
16 Aug - 25 Aug	Ethiopian Airlines
20 Aug - 29 Aug	Ryanair
22 Aug - 29 Aug	Ryanair
20 Aug - 28 Aug	Ryanair
13 Aug - 21 Aug	Ryanair

Also check the deals for one-way flights from Porto 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 Porto to Zanzibar in August from 911€

Return flights