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

Return flights

02 Dec - 11 Dec	Lufthansa
01 Dec - 09 Dec	Lufthansa
02 Dec - 09 Dec	Lufthansa
04 Dec - 23 Jan	EgyptAir
01 Dec - 08 Dec	Lufthansa
03 Dec - 07 Dec	SWISS
06 Dec - 31 Dec	Etihad Airways
01 Dec - 10 Dec	Etihad Airways
02 Dec - 10 Dec	Lufthansa
05 Dec - 18 Jan	Kenya Airways
04 Dec - 21 Dec	Kenya Airways
04 Dec - 08 Dec	Kenya Airways
07 Dec - 14 Jan	EgyptAir
08 Dec - 12 Jan	Etihad Airways
05 Dec - 17 Jan	Etihad Airways
09 Dec - 29 Jan	SWISS
09 Dec - 21 Jan	SWISS
09 Dec - 28 Jan	SWISS
10 Dec - 29 Jan	Condor
29 Dec - 20 Jan	Lufthansa

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 $627

Return flights