From Schiphol.nl web site:
"Severe disruption air traffic to and from the Netherland.
Update Monday evening 19 April. Dutch airspace will gradually become available for air traffic on Tuesday. Air traffic to and from the airport will commence in phases. Initially flights will only take place at daylight and capacity will be limited. It will take days before air traffic to and from Schiphol will be fully resumed.
Due to large visitor numbers in connection with the serious disruption of air traffic (caused by a volcanic eruption on Iceland)... "
From the paper today on the front page... ( de Volkskrant )

Showing a KLM Boeing 747 departing yesterday for New York - also they had one to Dubai and Shanghai.
Today, we are getting ready to take the bus to the train station in Maarssen, then on to Schiphol. During this time of the volcano eruption, two Delta Air Line airplanes have be stranded here at the airport, so they are scheduled to leave here at 240pm, one for Minneapolis and the other for Detroit. We are hoping to get on one them - or both :).
We zullen een goede reis, goede dag.