What does frequent flyer program means?

Question

What does frequent flyer program means?

Answer 1

The frequent flyer program is an incentive program operated by an airline to reward customers for their continued loyalty.

As a traveler, you earn free miles for the miles that you fly on a particular airline. The concept behind frequentflyer programs is that the airlines want their passengers to become lifetime customers.

It is much more costly for the airlines to get new customers than it is to retain the ones they already have. So how do they reward you? The more frequently you fly with them, the greater your awards.