Pakistan International Airlines (IATA: PK; ICAO: PIA) is the national airline of Pakistan, formerly known as Eastern Airlines Limited, founded in 1955 and headquartered in Karachi. Its hubs are Karachi Jinnah International Airport and Lahore Iqbal International Airport, with secondary hubs at Islamabad International Airport, Peshawar International Airport and Manchester International Airport in the United Kingdom. Pakistan International Airlines is ranked 31st among the largest airlines in Asia, operating to 35 destinations in Asia and 23 destinations in the Middle East, Europe and North America.