Flight International Airport departs from Vienna International Airport at 19:55 and arrives at Amsterdam Amsterdam Airport Schiphol at 21:45.
The flighttime is about 1h 50m. The distance travelled ("as the bird flies"): 1390 Km. So the average speed is roughly 758 Km.
The best day to arrive at Vienna is Wednesday and it would be best to avoid Friday, as prices are on average 133.91% higher than on Wednesday. (Average prices, based on 153925 datapoints.)
We have a lot more statistics for flights KL 1906 and between Vienna and Amsterdam.