Flight PA270 to Jeddah was scheduled to leave Islamabad at 2:00 AM.

Source: flightradar24.com
Later, airblue Airbus A320 registration AP-EDH apparently as substitute aircraft left Islamabad at 8:12 AM as flight PA270 to Jeddah.

Source: flightradar24.com
On May 4, airblue Airbus A320 aircraft registration AP-BNU left Islamabad at 5:04 PM apparently as ferry flight PA9003 to Karachi where it arrived at 7:26 PM. Maximum altitude gained by the aircraft 18,000 feet. Islamabad to Karachi flight completed in 2 hours & 21 minutes.

Source: flightradar24.com
Islamabad International Airport runways:
Primary Runway 10R/28L
Secondary Runway 10L/28R

Abbas