This has been on my mind for a while actually. Until my friend has advised me last week upon her landing in BKK, that she was not given an opportunity to use the Priority Lane / Fast Track despite holding a QR F ticket.

I wonder what are people's experiences / take on this. As far as I can remember, F and J should be able to get Prio when you leave, just not sure if I've seen a sign indicating the same on arrival.

Thanks in advance.