Flight International Airport departs from Doha International Airport at 20:50 and arrives at Yerevan Zvartnots International Airport at 00:50.
The flighttime is about 3h 00m. The distance travelled ("as the bird flies"): 1361 Km. So the average speed is roughly 454 Km.
There is an 1 hour time difference between Doha and Yerevan