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

Return flights

05 May - 13 May	Lufthansa
07 May - 15 May	Lufthansa
07 May - 13 May	Lufthansa
06 May - 13 May	SWISS
06 May - 18 May	SWISS
10 May - 25 May	Lufthansa
28 May - 05 Jun	Lufthansa
12 May - 25 May	Lufthansa
07 May - 19 Jun	Lufthansa
15 May - 18 May	Lufthansa
21 May - 10 Jun	SWISS
20 May - 25 May	Lufthansa
14 May - 14 Jun	KLM
29 May - 14 Jun	KLM
30 May - 14 Jun	Air France
16 May - 14 Jun	Air France
15 May - 25 May	Lufthansa
07 May - 04 Jun	Etihad Airways
29 May - 29 Jun	Lufthansa
31 May - 15 Jun	Lufthansa

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 $582

Return flights