KARACHI: The dispute between Pakistan International Airlines (PIA) and Pakistan Airline Pilots Association (PALPA) entered seventh day on Wednesday, as scheduled flights continued to face long delays in departure, Samaa reported. According to Samaa correspondent, Lahore-Karachi (PK-315), Sukkur-Karachi (PK-541), Madina-Karachi (PK-747) and Abu Dhabi-Lahore (PK-268) were delayed.