Flight Warsaw Chopin Airport departs from Warsaw Warsaw Chopin Airport at 21:40 and arrives at Yerevan Zvartnots International Airport at 03:15.
The flighttime is about 3h 35m. The distance travelled ("as the bird flies"): 2830 Km. So the average speed is roughly 790 Km.
There is an 2 hour time difference between Warsaw and Yerevan