If Possible, you must permit three-5h of transit time in Johannesburg, so you have sufficient time to capture your connecting flight. Transiting in Johannesburg is quite simple; basically Adhere to the signs for ‘Worldwide Transit’. The flight from Johannesburg to Harare can take about 1h 30m. The flights made available https://www.theluxurybooking.co.uk/flights-to-zimbabwe-from-london/