AirHint found the following cheapest return flights from Lisbon (LIS) to Johannesburg (JNB) in September 2025 (see full year).

Return flights

30 Sep - 23 Oct	SWISS
18 Sep - 10 Oct	SWISS
04 Sep - 17 Sep	SWISS
06 Sep - 22 Sep	SWISS
16 Sep - 29 Sep	SWISS
17 Sep - 09 Oct	SWISS
12 Sep - 24 Sep	SWISS
28 Sep - 31 Oct	TAAG Angola Airlines
07 Sep - 11 Sep	KLM
18 Sep - 25 Sep	KLM
13 Sep - 25 Sep	KLM
12 Sep - 25 Sep	KLM
04 Sep - 31 Oct	KLM
05 Sep - 31 Oct	KLM
03 Sep - 31 Oct	KLM
07 Sep - 20 Sep	Etihad Airways
29 Sep - 06 Oct	KLM
30 Sep - 08 Oct	Emirates
20 Sep - 29 Sep	TAAG Angola Airlines
01 Sep - 01 Oct	Qatar Airways

Also check the deals for one-way flights from Lisbon to Johannesburg 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 Lisbon to Johannesburg in September from $679

Return flights