Europe’s Airlines Run Low on Fuel - Moby THE GIST Europe's biggest airline is sounding the alarm. If jet fuel supplies tighten this summer, Ryanair says it may have to cancel flights. What looks like a commodity story is quickly turning into a capacity story, with knock-on effects for fares, tourism, and airline profits. WHAT HAPPENED Michael O'Leary, Ryanair's famously unfiltered CEO, has delivered the kind of blunt warning he tends to specialize in. If fuel supply risks materialize in June, July, or ...