History
The first modern frequent-flyer program was created at Texas International Airlines in 1979. American Airlines' program was a modification of a never-realized concept from 1979 that would have given special fares to frequent customers. It was quickly followed later that year by programs from United Airlines (Mileage Plus) and Delta Air Lines (SkyMiles), and in 1982 from British Airways (Executive Club).
Since then, frequent-flyer programs have grown enormously. As of January 2005, a total of 14 trillion frequent-flyer miles had been accumulated by people worldwide, which corresponds to a total value of 700 billion US dollars.
Read more about this topic: Frequent-flyer Program
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