Mexico is finding joy in a low-cost carrier renaissance as Volaris, Interjet and VivaAerobus are all growing and profiting. But the profits aren’t being distributed equally. Why is one carrier performing so much better than another? Also, how long can these airlines keep growing before they run out of elbow room? North of the border, Virgin America meanwhile is shifting to a high-growth gear. Canada’s Air Transat has taken up a new strategy. And it appears Qatar Airways won’t be the launch customer for the A320neo—does it matter? Lastly, in this special double-sized holiday episode, we spend a few minutes looking back at 2015.