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

Return flights

02 Dec - 19 Jan	Lufthansa
09 Dec - 18 Jan	Lufthansa
01 Dec - 04 Dec	Etihad Airways
27 Dec - 25 Jan	Etihad Airways
02 Dec - 14 Jan	Lufthansa
09 Dec - 14 Jan	Lufthansa
02 Dec - 05 Dec	Lufthansa
03 Dec - 07 Dec	British Airways	direct
22 Dec - 19 Jan	RwandAir
04 Dec - 15 Jan	RwandAir
25 Dec - 31 Dec	RwandAir
13 Dec - 06 Jan	RwandAir
11 Dec - 11 Jan	RwandAir
16 Dec - 07 Jan	RwandAir
11 Dec - 30 Dec	RwandAir
05 Dec - 09 Dec	Etihad Airways
16 Dec - 30 Dec	RwandAir
02 Dec - 09 Dec	Lufthansa
05 Dec - 28 Dec	RwandAir
12 Dec - 28 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 452€

Return flights