The Pakistan aviation industry began in 1946 with the founding of Orient Airways, which later merged with Pakistan International Airlines (PIA) in 1955 to become the national flag carrier. PIA operates domestic and international flights to over 70 destinations across Asia, the Middle East, Europe and North America. There are 36 operational airports in Pakistan, with Karachi, Lahore, and Islamabad serving as the major hubs. The aviation industry contributes approximately 1% to Pakistan's GDP, compared to a global average of 3.4%. Major players in the industry include PIA, Airblue, and Shaheen Airlines. The government is taking steps to improve infrastructure and regulate competition between airlines to support growth in the sector.