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

Return flights

03 Dec - 20 Jan	Brussels Airlines
01 Dec - 04 Dec	SWISS
01 Dec - 25 Jan	SWISS
02 Dec - 28 Jan	Lufthansa
02 Dec - 11 Dec	Lufthansa
02 Dec - 09 Dec	Lufthansa
03 Dec - 21 Jan	Lufthansa
01 Dec - 02 Dec	Lufthansa
03 Dec - 25 Dec	Brussels Airlines
03 Dec - 11 Dec	Brussels Airlines
04 Dec - 20 Jan	Brussels Airlines
01 Dec - 09 Dec	SWISS
01 Dec - 15 Jan	SWISS
01 Dec - 23 Dec	SWISS
01 Dec - 07 Dec	SWISS
01 Dec - 25 Dec	SWISS
04 Dec - 19 Jan	Brussels Airlines
02 Dec - 18 Jan	SWISS
01 Dec - 16 Jan	Etihad Airways
08 Dec - 22 Jan	Ethiopian Airlines

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

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 December from 470€

Return flights