Originally Posted by
DieselYVR
Understand this is no longer an issue for OP but for PVG-HKG you can show up early and they will put you on the earliest available flight for no change fee. I've done this as SL, GO, and DM and never had an issue. Unless the flight is full of course.
The whole reason I wanted to change to an earlier PVG-HKG flight is I find the CX flights are usually less delayed than the KA flights. Every single week I fly my KA flight has been delayed 40 minutes to 2 hours. Worse I've had a few cancellations. So as a precaution and avoid missing my connection, I decided I would fly an earlier flight on CX.
However with the whole married segments available being different, I decided to fly two days earlier; I have the times I want and now I'm on an earlier HKG-JFK flight.