AirHint found the following cheapest return flights from London (STN) to Johannesburg (JNB) in May 2026 (see full year).

Return flights

19 May - 27 May	Air Algerie
01 May - 23 May	Air Algerie
08 May - 25 May	Air Algerie
01 May - 04 May	Air Algerie
12 May - 23 May	Air Algerie
15 May - 23 May	Air Algerie
01 May - 16 May	Air Algerie
01 May - 01 Jun	Air Algerie
26 May - 06 Jun	Air Algerie
01 May - 13 May	Air Algerie
09 May - 16 May	Air Algerie
16 May - 22 Jun	Air Algerie
12 May - 18 May	Air Algerie
25 May - 15 Jun	Air Algerie
04 May - 08 Jun	Air Algerie
16 May - 01 Jun	Air Algerie
29 May - 27 Jun	Air Algerie
15 May - 15 Jun	Air Algerie
30 May - 10 Jun	Air Algerie
01 May - 27 Jun	Air Algerie

Also check the deals for one-way flights from London to Johannesburg in May.

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 Johannesburg in May from 415€

Return flights