Flight Barcelona–El Prat Airport departs from Barcelona Barcelona–El Prat Airport at 19:40 and arrives at Amsterdam Amsterdam Airport Schiphol at 21:55.
The flighttime is about 2h 15m. The distance travelled ("as the bird flies"): 1258 Km. So the average speed is roughly 559 Km.
The best day to arrive at Barcelona is Wednesday and it would be best to avoid Tuesday, as prices are on average 210.16% higher than on Wednesday. (Average prices, based on 755929 datapoints.)
We have a lot more statistics for flights KL 1520 and between Barcelona and Amsterdam.