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

Return flights

07 Sep - 17 Sep	Emirates
25 Sep - 05 Oct	Ryanair
26 Sep - 03 Oct	Ryanair
29 Sep - 17 Oct	Ryanair
29 Sep - 12 Oct	Ryanair
08 Sep - 16 Sep	Ryanair
03 Sep - 09 Oct	KLM
02 Sep - 08 Sep	KLM
08 Sep - 15 Sep	Ryanair
30 Sep - 03 Oct	Ryanair
22 Sep - 06 Oct	Ryanair
01 Sep - 15 Sep	Ryanair
01 Sep - 22 Sep	Ryanair
09 Sep - 15 Sep	Ryanair
10 Sep - 17 Sep	Norwegian
18 Sep - 04 Oct	Kenya Airways
18 Sep - 30 Sep	Kenya Airways
15 Sep - 30 Sep	Kenya Airways
18 Sep - 02 Oct	Kenya Airways
18 Sep - 06 Oct	Ryanair

Also check the deals for one-way flights from London to Cape Town 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 Cape Town in September from $719

Return flights