I would not have thought that a 146 (particularly a 146-300, on which the seat/mile costs are markedly better than the -200) would stand a remote chance of hacking HUY-ALC / AGP / PMI / FAO with anything like a full payload. It is a very short-haul aircraft would struggle like hell to manage a 1200nm sector. Quite apart from anything else, it would take all day to fly one rotation at the speed at which those things cruise.