Personally, I wonder why anyone would even want to work for a company who keeps your miles. It speaks volumes about their larger attitude toward their employees. I once worked for a company like that, keeping miles, scheduling out-of-town meetings on the weekend to get a cheaper fare, etc. The company didn't give a rip about their employees. Do what I did, quit and go work for a company that gets it. Now, I not only get to keep all my miles, but they even pay for an airline lounge membership for any employee who travels more than 25% of the time. And you know what? It is a much more enjoyable place to work. Whatever a company's policy toward frequent flyer benefits, consider it a reflection of their overall treatment of employees.