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

Return flights

10 Dec - 15 Jan	Pegasus Airlines
01 Dec - 10 Dec	Ryanair
02 Dec - 13 Jan	Ryanair
10 Dec - 08 Jan	Pegasus Airlines
03 Dec - 13 Dec	Ryanair
29 Dec - 13 Jan	Ryanair
01 Dec - 07 Dec	Ryanair
10 Dec - 30 Dec	Pegasus Airlines
01 Dec - 24 Jan	Ryanair
08 Dec - 30 Dec	Ryanair
11 Dec - 13 Jan	Ryanair
10 Dec - 07 Jan	Pegasus Airlines
02 Dec - 16 Dec	Emirates
01 Dec - 14 Dec	Ryanair
04 Dec - 11 Dec	Pegasus Airlines
10 Dec - 24 Jan	Pegasus Airlines
08 Dec - 29 Dec	Ryanair
13 Dec - 16 Jan	Ryanair
26 Dec - 13 Jan	Ryanair
07 Dec - 30 Dec	Ryanair

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 734€

Return flights