Does your 737 come with a guy called "Scottie" so he can beam it around the country? You need a physical connection, even 2 routes to the same airport (eg LGW-ORY, MAN-ORY etc) so that the plane can fly the MAN routes.
Oh? A subtle hint to your new game? "Space Transit Mogul"?
Jeez. Everything your saying tonight is about copyright infringement. Have a lawsuit on your hands at the moment?
But the processes may not be nearly as fun. -nudge, nudge.-