If possible, you need to allow 3-5h of transit time in Johannesburg, so you have sufficient time and energy to capture your connecting flight. Transiting in Johannesburg is rather simple; simply Adhere to the indications for ‘Worldwide Transit’. The flight from Johannesburg to Harare requires about 1h 30m. A similar https://www.theluxurybooking.co.uk/flights-to-zimbabwe-from-london/