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

Return flights

22 Sep - 06 Oct	TAAG Angola Airlines
25 Sep - 06 Oct	TAAG Angola Airlines
28 Sep - 28 Oct	TAAG Angola Airlines
28 Sep - 29 Oct	TAAG Angola Airlines
28 Sep - 04 Oct	TAAG Angola Airlines
28 Sep - 03 Oct	TAAG Angola Airlines
24 Sep - 11 Oct	TAAG Angola Airlines
15 Sep - 29 Sep	TAAG Angola Airlines
26 Sep - 06 Oct	SA Airlink
28 Sep - 27 Oct	TAAG Angola Airlines
30 Sep - 31 Oct	KLM
01 Sep - 10 Sep	KLM
13 Sep - 18 Sep	TAAG Angola Airlines
11 Sep - 18 Sep	KLM
11 Sep - 27 Sep	FlySafair

Also check the deals for one-way flights from Cape Town to Lisbon 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 Cape Town to Lisbon in September from $650

Return flights