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

Return flights

01 Dec - 11 Dec	Turkish Airlines
06 Dec - 11 Jan	EgyptAir
06 Dec - 13 Dec	EgyptAir
08 Dec - 15 Dec	Ethiopian Airlines
24 Dec - 01 Jan	Ethiopian Airlines
24 Dec - 30 Dec	Ethiopian Airlines
25 Dec - 01 Jan	Ethiopian Airlines
13 Dec - 28 Dec	Frontier Airlines
26 Dec - 02 Jan	Etihad Airways
12 Dec - 27 Dec	Aer Lingus
25 Dec - 30 Dec	Ethiopian Airlines
24 Dec - 06 Jan	Ethiopian Airlines
20 Dec - 01 Jan	jetBlue
21 Dec - 01 Jan	jetBlue
22 Dec - 13 Jan	Frontier Airlines
16 Dec - 22 Dec	Ethiopian Airlines
15 Dec - 10 Jan	Frontier Airlines
28 Dec - 03 Jan	Ethiopian Airlines

Also check the deals for one-way flights from Washington 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 Washington to Johannesburg in December from 974€

Return flights