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

Return flights

23 Dec - 26 Jan	Lufthansa
23 Dec - 21 Jan	Lufthansa
09 Dec - 18 Jan	Lufthansa
02 Dec - 05 Dec	Lufthansa
23 Dec - 20 Jan	Lufthansa
25 Dec - 19 Jan	Lufthansa
24 Dec - 25 Jan	Lufthansa
22 Dec - 19 Jan	Lufthansa
02 Dec - 06 Dec	Lufthansa
08 Dec - 14 Jan	RwandAir
04 Dec - 23 Jan	RwandAir
05 Dec - 31 Jan	RwandAir
04 Dec - 06 Dec	Lufthansa
23 Dec - 30 Dec	RwandAir
01 Dec - 05 Dec	RwandAir
02 Dec - 09 Dec	Lufthansa
04 Dec - 29 Dec	RwandAir
24 Dec - 31 Dec	RwandAir
22 Dec - 30 Dec	RwandAir
13 Dec - 31 Dec	RwandAir

Also check the deals for one-way flights from Johannesburg to London 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 Johannesburg to London in December from 437€

Return flights