You’re Going to Miss Spirit Airlines. Why Cheap Flights Are Going Extinct.

Picture an excessively mobile middle-class family that does almost nothing but drive, traveling from New York City to Los Angeles and back again each week. Spirit Airlines recently succumbed. At the same time, the strongest airlines—including Delta Air Lines United Airlines Holdings and some of the rest now doing their best impressions of these two—could benefit from present turmoil and generate healthy stock returns for years.