Flight Adolfo Suárez Madrid–Barajas Airport departs from Madrid Adolfo Suárez Madrid–Barajas Airport at 20:20 and arrives at Amsterdam Amsterdam Airport Schiphol at 23:00.
The flighttime is about 2h 40m. The distance travelled ("as the bird flies"): 1606 Km. So the average speed is roughly 602 Km.
The best day to arrive at Madrid is Saturday and it would be best to avoid Wednesday, as prices are on average 152.77% higher than on Saturday. (Average prices, based on 217535 datapoints.)
We have a lot more statistics for flights KL 1508 and between Madrid and Amsterdam.