While with fractional jet programs, customers or owners purchase a share of the plane, instead of the entire plane. The cost is pro-rated from market cost of a full aircraft. Owners or customers then have assurance of access to that plane with as little as four hours of notice. Fractional customers or owners pay a maintenance fee every month and also an hourly operating fee when occupied; this is not the case at all on jet card programs. Charter jet cards do not charge you with this; they only charge you with the number of hours of your flight. The operating fee is charged only when a guest is on board; this is not when the plane is flying to a get to a destination, or returning to the home base after completing a flight.