Hello experts,

I have flew on COPA mostly on award tickets. Now trying to book a revenue ticket. I saw the price going up almost every day now for the route I am purchasing...PUJ PTY MEX...is selling now only full Y class on 3rd January.
I know that there is very high demand for PUJ PTY on that dates....but is there any chance that they at least sell B class or something lower?
Basically, is the price sometimes also going down or is a one way only to increase it?

Thanks