ISLAMABAD - PIA started its flight operation to Barcelona Sunday morning. PK 769 left for the Spanish city via Paris from Benazir Bhutto International Airport here. Due to the tragic December 7 incident, all festivities planned earlier for the launch of this flight had been cancelled. In a somber mood, PIA CEO Bernd Hildenbrand saw off the passengers of flight. Expressing his views on the occasion, Hildenbrand said that with the resumption of flights to Barcelona, after a gap of nearly two years, passengers will have a convenient link between Pakistan and Spain.