Pakistan International Airlines | 304,152 followers on LinkedIn. National Flag Carrier of Pakistan | Pakistan International Airlines Corporation (پاکستان انٹرنیشنل ایئر لائنز) commonly known as PIA, is the flag carrier airline of Pakistan. The airline has its head office on the grounds of Jinnah International Airport in Karachi. and operates scheduled services to 24 domestic destinations and 38 international destinations in 27 countries across Asia, Europe and North America. Its main bases are at Karachi, Lahore and Islamabad/Rawalpindi.