I'm an airline employee who flies for free, sometimes even in business class. It's an incredible perk, but there's one major catch.

I'm an airline employee who sees the world for essentially free thanks to my flight benefits. Shayan Hossain I'm an airline employee who flies essentially for free on a whim, but only if a seat is open. I can often see flight loads ahead of time, but piecing together flights can be a game of…