Preferably, You must permit three-5h of transit time in Johannesburg, so that you have sufficient time to catch your connecting flight. Transiting in Johannesburg is quite easy; only follow the symptoms for ‘Intercontinental Transit’. The flight from Johannesburg to Harare will take about 1h 30m. Need support choosing which airline https://www.theluxurybooking.co.uk/flights-to-zimbabwe-from-london/