It has been maintaining the top spot since the beginning of this year.
OTP is measured on the time taken for a scheduled flight to depart from a point of origin to the point of arrival.
Air Niugini Managing Director, Alan Milne, in presenting the award, congratulated Madang Port Manager, Henrick Senat, and his team for an excellent job in maintaining their performance.
He also encouraged the rest of the staff to continue to work smarter to achieve the 100 percent OTP mark.
