What type of delay happens at PVG? I mean is it more like a scheduled delay where one finds out upon check-in or at the gate and wait it out, or is it more like holding off on tarmac after push back? What is the on-time performance of planes leaving gate (not taking off)
I'm curious to know because the former will allow me to board still if my previous arrival is late, but not the latter.
Delays happen on the day - usually ATC driven although weather is sometimes a contributing factor.
The delays are rolling... it's usually every flight that gets pushed back, not just one or two.
Delays can either be once you board, or you can be delayed in the departure gate. If your inbound is three hours late, you'll be three hours late leaving.
However... because CX/KA have so many flights, if you get out to the airport early enough they will put you on the next available flight... which is fine, unless peak periods when everything is full.