Flight OR Tambo International Airport departs from Johannesburg OR Tambo International Airport at 08:20 and arrives at Addis Ababa Bole International Airport at 14:45.
The flighttime is about 5h 25m. The distance travelled ("as the bird flies"): 3435 Km. So the average speed is roughly 634 Km.
There is an 1 hour time difference between Johannesburg and Addis Ababa