Do you know how to access the roof of the world, Tibet? There is little international flight connecting with Tibet. Travelers are just allowed to take an international flight from Kathmandu to Lhasa. Most travelers prefer to get to Tibet from mainland China. Travelers can take a direct flight from Chengdu, Chongqing, Xian to Tibet. If travelers prefer to take a train Tibet, they can take a train from Beijing, Xian, Xining to Tibet. Xian, Chengdu, and Xian are the top cities for travelers to take a train to Tibet.