LAHORE PIA flight operation on Friday also remained disturbed due to which several international and domestic flights were delayed and passengers had to suffer a lot, sources in the airline said. Only seven flights were disturbed operating to and from Allama Iqbal International Airport while four flights were disturbed to and from Karachi Airport, the sources added. They said that certain special flights were introduced by PIA management to facilitate the people to observe Eid-ul-Azha with their dear and near ones but traditional delays in PIA operation has caused problems for the passengers and their family members as well. A number of people were witnessed at Allama Iqbal International Airport who were there to receive their kith and kin coming and going from different destinations. According to flight inquiry staff of Civil Aviation Authority, flights got delayed from Lahore Airport included PK 204 coming from Dubai was delayed by six hours. It was supposed to arrive Lahore at 5:55am but could arrive at 11:55am. A flight coming from Karachi PK 306 was delayed by seven hours. The flight had to arrive at 8:45pm but it arrived at 4:00am. Another fight coming from Hydarabad PK 652 arrived with the delay of almost 2 hours.