AirHint found the following cheapest return flights from Lisbon (LIS) to Cape Town (CPT) in August 2025 (see full year).

Return flights

16 Aug - 25 Sep	KLM
16 Aug - 21 Sep	KLM
25 Aug - 09 Sep	KLM
14 Aug - 20 Sep	KLM
07 Aug - 10 Aug	KLM
16 Aug - 13 Sep	KLM
02 Aug - 10 Aug	KLM
20 Aug - 28 Aug	Qatar Airways
13 Aug - 26 Aug	Qatar Airways
23 Aug - 04 Sep	KLM
07 Aug - 13 Aug	KLM
11 Aug - 20 Aug	KLM
02 Aug - 08 Aug	KLM
13 Aug - 19 Aug	Qatar Airways
05 Aug - 30 Aug	Emirates
03 Aug - 30 Aug	easyJet
01 Aug - 01 Sep	KLM

Also check the deals for one-way flights from Lisbon to Cape Town 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 Lisbon to Cape Town in August from 781€

Return flights