AMS-PTY W->J : 297€ (on AF app and .fr website, interestingly only 263€ on .be website - or IIRC ~36k miles) - very scarce cabin in Y and W, but full in J after upgrades
I had not taken it as I was travelling with copax (and was willing to try the KL W product : I have been very pleasantly surprised, even with the food offering miles ahead of AF W for the flight back, what a shame AF!).