Flight Guarulhos International Airport departs from Sao Paulo Guarulhos International Airport at 01:10 and arrives at Doha International Airport at 20:40.
The flighttime is about 13h 30m. The distance travelled ("as the bird flies"): 11851 Km. So the average speed is roughly 878 Km.
There is an 6 hour time difference between Sao Paulo and Doha