Islamabad International Airport is served by 21 airlines, flying from/to 20 destinationsLongest flight from Islamabad International Airport is Islamabad to 🇸🇦 Medina (MED), which takes around 5 hours and 35 minutes. On an airline like Pakistan International Airlines. More info on this flight route (ISB-MED).Shortest flight from Islamabad International Airport is Islamabad to 🇵🇰 Skardu (KDU), which takes around 1 hour. On an airline like Pakistan International Airlines. More info on this flight route (ISB-KDU).