EasyJet boss Johan Lundgren has admitted he "can't guarantee" passengers will not suffer more disruption this summer.
The chief executive said the airline has introduced "a number of measures" to avoid a repeat of the chaos seen during the Easter and jubilee periods, when thousands of flights were cancelled. The summer holidays for most schools in England and Wales start this week.
Schedule reductions across the airline industry will "help" but factors "outside our control" could affect flights, Mr Lundgren warned.
