I run a medium airline in South America with ca. 15 medium ac's. I found out that i have good pax demand on longhaul flights to many north american city's, so I leased a B737-9 to see if it turns profitable. BUt now, after almost 1 year of flying the route (image 100) the LF does not surpass 60% and the profit is low or inexistent (the route demand is 210 and the Boeing has 180). I have CI at 80 but still no change... Any clue?