The budget airline said following the collapse of Monarch, competitors had not snapped up the empty slots overlapping easyJet capacity as quickly as anticipated.
It added the positive outlook came despite industry-wide disruption in Europe impacting revenue, costs and operational performance, driven by industrial action and air traffic restrictions.
On Wednesday (July 18), easyJet reported total third quarter revenue (three months to June 30) rose to £1.6 billion, up 14%), while ancillary revenue increased 21.1% to £328 million.