How to get from Shanghai to Xishuangbanna cheaply?

It is cheaper to buy tickets and take the high-speed rail in the afternoon. If you take the high-speed rail from Shanghai to Xishuangbanna in the morning, it usually costs more than 1,000 yuan. However, it is cheaper to buy tickets and take the high-speed rail in the afternoon, almost half the price. There is no direct high-speed rail from Shanghai to Xishuangbanna, so you have to transfer at Kunming South Railway Station. Directly to Xishuangbanna high-speed rail, the time and frequency are different, and you can also save money.