Airlines are mad about 'skiplagging.' They have themselves to blame.

• Airlines hate the practice of skiplagging, which lets passengers strategically get cheaper flights.
• But the fact that the practice is even possible makes no sense.
• The airlines also don't guarantee you'll make your connecting flight, so why should you be required to take it?

Airlines are displeased with "skiplagging." One even banned a teenager who engaged in the practice. But the question needs to be asked: What is driving passengers to use skiplagging when booking travel?