Flight Humberto Delgado Airport departs from Lisbon Humberto Delgado Airport at 15:25 and arrives at Doha International Airport at 00:35.
The flighttime is about 7h 10m. The distance travelled ("as the bird flies"): 6873 Km. So the average speed is roughly 959 Km.
There is an 2 hour time difference between Lisbon and Doha