From where to where? how is the shape of the plane. does it have enough fuel and who is paying for it? these are all factors in your "fee".
Most defineatly have tickets to and from, 1st class.
you can set a fee for your travel days and then have a seperate fee for the flight. what kind of plane?
over water, over desert, war zone?
Remember, there is always someone willing to do it cheaper, but don't sell your self short , don't be greedy, be fair.