Flight OR Tambo International Airport departs from Johannesburg OR Tambo International Airport at 06:20 and arrives at Harare Robert Gabriel Mugabe International Airport at 08:00.
The flighttime is about 3h 40m. The distance travelled ("as the bird flies"): 853 Km. So the average speed is roughly 233 Km.
There is an 2 hour time difference between Johannesburg and Harare