Just found this from January...Odd how things change.
"PIA closes its twice weekly Glasgow-Lahore route on January 22 following an appraisal of its loss-making operations in Europe which could see it pull out completely from some countries. PIA’s decision to axe Glasgow is linked with competition from Emirates, which operates daily from Glasgow to Dubai with onward connections to Pakistan.
Speaking from PIA’s base in Karachi, spokesman Mamoon Rashid said flights from Pakistan to Heathrow, Manchester, Birmingham and Leeds/Bradford were profitable and could be expanded. PIA will also continue with its Manchester-New York route."