The air transportation starts at 187 1. At that time, the French in the Franco-Prussian War used balloons to transport government officials, materials and mail out of Paris, which was besieged by Pu Jun.. 1965438+On May 5, 2008, air transportation first appeared, and the route was new york-Washington-Chicago. On June 8 of the same year, regular postal flights started between London and Paris. With the appearance of civil transport aircraft in 1930s, various technical performances have been continuously improved, and the development of aviation industry has promoted the development of air transport. After the end of World War II, airline networks have been gradually established all over the world, and the world airline networks with major cities in various countries as the starting point and the end point are spread all over the continents. From 65438 to 0990, the total turnover of global scheduled flights reached 235.67 billion tons kilometers.