Can a jet slot be traded for a regional slot I know a regional can’t be traded for a jet.
As far as I'm aware there is no such thing as jet slots, just slots and a small amount of protected slots for regional access. Anything that's not the protected regional slots can be used for what fits. Sydney is the only airport that has the fixed slot system, anywhere else is using fleet size to bully the airservices terrible anticompetetive first in system that grossly favors existing large players.