Jesus christ, what is there not to believe?
You don't believe that:
The dispatcher uses several hi-tech software to find the most suitable route where weather, aircraft weight, overflight fees, pax with connection flights, fuel economy and many more factors comes into play.
Furthermore, you don't believe that when the dispatcher is ready with his flightplan, he will e-mail it to the various controllers enroute. If the plan isn't accepted, the controller will notify the dispatcher, and he has to start all over again.
Aside from fuel, one of the biggest costs are overflight charges, which you probably also won't believe.
Somebody please tell me, why am I still talking to you?
