In its latest notice to the Pakistan International Airlines (PIA), Saudi Arabia's General Authority of Civil Aviation said it would suspend PIA Umrah flights to Jeddah if it fails to overcome delays.
It also warned that it would only allow one flight a day for Jeddah if it does not follow the schedule of flight operations.
Earlier, the General Authority of Civil Aviation had issued a notice to PIA to clear its outstanding airport usage fees or face a ban.
PIA spokeman Mashhood Tajwar said congestion at the Jeddah airport was one of the reasons for the flight delays.
"The PIA is facing this problem primarily due to shortage of the fleet," he said.
Asked about clearing of dues, Tajwar said: "PIA provides billions of rupees business to Saudi aviation therefore it will not halt the PIA flights. However we will soon pay our dues."
