Number 1, Frequent-Flyer Program

FFPs are loyalty programs that airlines offer to their customers for flying with them.

These points can be redeemed for various benefits like free flights or other benefits

These work as a great incentive to retain customers.

They feel obligated to fly with the same airline again and again to pile up enough loyalty points to claim a big reward

Now, here's the crazy part

The total value of the FFP is usualy greater than the airline who owns them.

This means that the FFP aside, the airlines actually suffer losses!