Germanwings, Smart Wings, BMI Baby, Vueling, and a hundred others. The rest is history, with traditional airlines going deeper and deeper into crisis in this first decade of the new millennium. The low-cost strategy is based on limited turnaround times at airports usually twenty to 25 minutes. This means that the airlines can get more flights out of a day eight as opposed to the normal six. Some low-cost carriers also use secondary airports, with much lower landing and take-off charges. Paperless ticketing and sales over the Internet and the phone also keep costs down. They also issue single tickets only, and of course, there are no first-class or business-class seats. No free newspapers nor free food. In fact, no free anything, although you can pay to buy most things during the flight.