Because of World Expo, tickets of flights to Shanghai went on with high price. As new data showed flights to Shanghai from Beijing, Shenzhen, Guangzhou, Wuhan and many other cities dropped nearly 20 percent in August.
Many travelers avoid the rush time to make savings on their traveling costs in the summer holiday. But as the weather gets cooler in September, together with long holidays of National day and Mid-Autumn, there will be more travelers in September. So, some experts recommend that if you want to visit shanghai, better go in August.