Flight Barcelona–El Prat Airport departs from Barcelona Barcelona–El Prat Airport at 17:15 and arrives at Amsterdam Amsterdam Airport Schiphol at 19:35.
The flighttime is about 2h 20m. The distance travelled ("as the bird flies"): 1258 Km. So the average speed is roughly 539 Km.
The best day to arrive at Barcelona is Saturday and it would be best to avoid Wednesday, as prices are on average 178.03% higher than on Saturday. (Average prices, based on 755934 datapoints.)
We have a lot more statistics for flights KL 1518 and between Barcelona and Amsterdam.