Flight Houari Boumediene Airport departs from Algiers Houari Boumediene Airport at 22:05 and arrives at Dubai International Airport at 07:50.
The flighttime is about 6h 45m. The distance travelled ("as the bird flies"): 5889 Km. So the average speed is roughly 872 Km.
There is an 3 hour time difference between Algiers and Dubai