Flight Amsterdam Airport Schiphol departs from Amsterdam Amsterdam Airport Schiphol at 17:00 and arrives at Madrid Adolfo Suárez Madrid–Barajas Airport at 19:30.
The flighttime is about 2h 30m. The distance travelled ("as the bird flies"): 1606 Km. So the average speed is roughly 642 Km.
The best day to arrive at Amsterdam is Monday and it would be best to avoid Wednesday, as prices are on average 245.95% higher than on Monday. (Average prices, based on 436144 datapoints.)
We have a lot more statistics for flights KL 1507 and between Amsterdam and Madrid.