In (, Kang Xi October day), November 20, 1979 Xi'an - Lhasa route navigable.

1979 11 20, the Xi'an to Lhasa flight was officially opened to traffic. travelers
over 70 to take the first flight, at an altitude of 5000-8000 meters, has over the impressive Liupanshan crystal of Qinghai Lake as a mirror, a boundless Qaidam Basin and snow capped Tanggula and other places, which lasted more than five hours, flying two thousand three hundred kilometers. Xi'an - Lhasa route opened up, so people from Northeast China, North China and East China, Central South, northwest part of the region by plane into Tibet to spend two or three days less than in the past. At the same time, can also alleviate the pressure of the Chengdu-Lhasa route travelers crowded.