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

Return flights

06 May - 20 May	Brussels Airlines
14 May - 18 May	Brussels Airlines
07 May - 18 May	Brussels Airlines
12 May - 18 May	Lufthansa
13 May - 18 May	Brussels Airlines
04 May - 18 May	Lufthansa
05 May - 13 May	Lufthansa
15 May - 25 May	Lufthansa
08 May - 25 May	Lufthansa
06 May - 13 May	Brussels Airlines
28 May - 15 Jun	Brussels Airlines
04 May - 08 Jun	Lufthansa
16 May - 22 Jun	Lufthansa
21 May - 10 Jun	Brussels Airlines
31 May - 15 Jun	Brussels Airlines
15 May - 06 Jun	Lufthansa
27 May - 02 Jun	RwandAir
25 May - 09 Jun	RwandAir
12 May - 04 Jun	RwandAir
25 May - 04 Jun	RwandAir

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 477€

Return flights