Have other pilot associations gave a view ? Seems the Finnish ones are being more cautious (and as a joke it is not brilliant summer house weather so they are not "happy" to be on holiday.
From STT.
The Finnish Pilots' Association (FPA) issued a statement Monday warning that it would not be wise to rush into restarting air traffic in spite of the volcanic ash cloud covering Europe.
According to the statement, FPA exhorted authorities in European countries to make decisions on opening their national airspaces on a safe and consistent basis.
STT also reported:
Finland's government is preparing for weeks of disruptions in air traffic but is confident that no threats to the citizens' safety are on the horizon, Matti Vanhanen (centre), Finland's prime minister, said at a news conference in Helsinki on Monday.
The prime minister assured reporters that for example medicines would not run out. "We have good existing reserve supplies so this is not a threat," Mr Vanhanen said.
Finland's National Emergency Supply Agency is investigating what would happen if the cloud of volcanic ash from Iceland remained above northern Europe for several weeks. However, nobody knows for how long the ash will cause problems, Mr Vanhanen added.