In an interview for ITV News, Ryanair boss Michael O'Leary predicts fares "inevitably" will rise and some airlines will go bust as a result of today's ruling on passenger compensation by the European Court.
He added that much of what has been claimed amounts to "crazy compensation".
Today's ruling the EU court on the duty of care owed to passengers by airlines is significant. Our guide to how it could affect you.
The airlines like Ryanair argued it was an "act of God" but today an "act of court" dramatically clarified passengers rights.
Ryanair should have compensated passengers whose flights were cancelled because of volcanic ash in 2010, the EU's top court has found.