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

Return flights

28 May - 23 Jun	KLM
29 May - 23 Jun	KLM
29 May - 14 Jun	KLM
05 May - 12 May	KLM
13 May - 20 May	Lufthansa
14 May - 19 May	SWISS
07 May - 09 May	Lufthansa
14 May - 17 May	SWISS
13 May - 19 May	Lufthansa
07 May - 12 May	Lufthansa
07 May - 28 May	Lufthansa
06 May - 20 May	SWISS
06 May - 28 May	Lufthansa
21 May - 02 Jun	KLM
29 May - 12 Jun	KLM
18 May - 01 Jun	KLM
13 May - 23 Jun	KLM
12 May - 02 Jun	KLM
21 May - 01 Jun	KLM
08 May - 06 Jun	KLM

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 557€

Return flights