Try to book the cheap flight from shenzhen to kunming, but ctrip send me an email that this flight is sold out now. So the Transfer Flight via Chengdu to Lijiang is now the best option, almost the same price than I fly to kunming first and take the train up.

Edit: Will book the Chengdu Flight now. A friend will show me the city that day, maybe I can see the much interesting things with a local guide in that short time