O'Leary told Reuters that "we've seen very strong bookings through May. We had 92% load factor in May. We think that would rise to about 94% in June. And July, August, and September look very strong with higher load factors and also higher fares".

"Fares will be up probably high single digits 7,8, 9 percent over summer 2019," he said.

(Reporting by Clement Rossignol; Editing by Kirsten Donovan)