Past 8 months I have booked 12 flights all within China. 8 of the flights have either been canceled outright or delayed significantly weeks in advanced!!!!!!
It seems it is not just an airlines in particular. Air China, Junyao, Spring and this week China Eastern.

If the delay was a couple of hours the day of the flight, I don't like it but I kind of understand however these eight flights have been cancelled 4 weeks 3 weeks and this time 2 weeks in advance. You can't plan anything!!!!

It is almost like you have to plan to be somewhere a day early to attend a meeting in the afternoon or night the following day. It is so frusterating. Why have a schedule if you don't plan to keep it?