Originally Posted by
bocastephen
They don't even have to know about it - unless they want you to be meeting the flight officially and will ask how you're doing it.
The airline can grant gate passes - if your tour company is doing business with a particular airline or two, have the tour company boss call the regional sales manager for the airline and tell them you want to be given a gate pass by the airport counter staff whenever you're meeting a flight.
Try to leave the TSA and airport out of it, officially.
I would think, with recurring business between your company and airlines at your airport, that one of the airlines would be willing to sponsor you for an employee badge of some sort. You would have to go through all the screening stuff, but, at least you wouldn't have to grovel for a gate pass.