Based on the data provided in the website, airlines would struggle so much in the drop of passengers since their income is based on the volume of passengers. By sliding the tab, it is clearly evident that as the capacity of the airlines increase, the closest they are to breakeven and the greater their income. At 50% capacity, all airlines are at loss and United has the lowest net loss, while for 100% capacity, the highest profit is Delta. This means that there are other factors affecting the profit/loss aside from the volume of passengers. Another factor to consider is the additional cost incurred brought by additional number of passengers.