Why it’s so hard for new airlines to get liftoff

Where are the startup airlines?

With the big carriers cutting routes and raising fares, this would seem an ideal time for a new airline to take them on with cut-rate prices and service to smaller airports eager for more flights. That is the path, after all, taken by two of the industry’s success stories: Southwest Airlines, in 1971, and JetBlue Airways, in 2000.