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

Return flights

22 Sep - 07 Oct	Ethiopian Airlines
22 Sep - 02 Oct	Ethiopian Airlines
24 Sep - 23 Oct	Ethiopian Airlines
22 Sep - 29 Sep	Ethiopian Airlines
23 Sep - 30 Sep	Ethiopian Airlines
23 Sep - 06 Oct	Ethiopian Airlines
24 Sep - 01 Oct	Emirates
28 Sep - 13 Oct	Kenya Airways
22 Sep - 25 Sep	Ethiopian Airlines
29 Sep - 14 Oct	Ethiopian Airlines
22 Sep - 28 Sep	Ethiopian Airlines
29 Sep - 06 Oct	Emirates
30 Sep - 07 Oct	Emirates
23 Sep - 08 Oct	Emirates
24 Sep - 30 Sep	Emirates
18 Sep - 22 Sep	Ethiopian Airlines
24 Sep - 28 Sep	Emirates
25 Sep - 29 Sep	Emirates
21 Sep - 29 Sep	Emirates
19 Sep - 21 Sep	EgyptAir

Also check the deals for one-way flights from Johannesburg to London 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 Johannesburg to London in September from $638

Return flights