Geir Karlsen, chief executive of the airline, said the company is now preparing to welcome an even larger number of passengers in July, with booking numbers for August and September remaining positive.
Air traffic control issues at Copenhagen which impacted Norwegian’s operations last month, the airline said, have now improved.
"Although our operations were impacted by air traffic control issues, particularly in Denmark and France, our punctuality, when measured by arriving within 60 minutes of our scheduled time, was satisfactory," Karlsen added.
"This demonstrates our ability to perform under challenging circumstances. Demand for summer air travel has been strong, but some seats are still available for any last-minute sun seekers."
