And they aren’t too pleased about it.
Irish budget airline Ryanair insisted that it had sent its own airplane into Scottish airspace and found no ash in the atmosphere. There is “no basis for these cancellations,” Ryanair wrote in a note on its Web site
The ash cloud has already forced President Obama to shorten a visit to Ireland on Monday, and raised fears of a repeat of the huge travel disruptions Europe experienced last year when ash from another Iceland volcanic eruption stranded millions of passengers.
Experts say that particles in the ash were dangerous because they could stall jet engines and sandblast planes’ windows.
Aer Lingus seemed happy to avoid that scary scenario, canceling 20 flights between Ireland and Scotland.
“We take the advice given to us,” Aer Lingus spokesman Declan Kearney said. “We have no reason to question the advice being given to us by the aviation authorities at this time. We need to accept what the experts in this area are telling us.”