Flight Humberto Delgado Airport departs from Lisbon Humberto Delgado Airport at 13:55 and arrives at Vienna International Airport at 18:20.
The flighttime is about 3h 25m. The distance travelled ("as the bird flies"): 3037 Km. So the average speed is roughly 889 Km.
There is an 1 hour time difference between Lisbon and Vienna