If you are shuttling only once a week between VLC or BCN and Algiers, then you are not going to fly 100 hours per year thatīs for sure. If you fly less than 200 hours then charter is the way to go. Purchasing an aircraft is way OTT unless you tell us there will be much more flying to be done. I broker aircraft and am telling you honestly that buying would be mad.
Let me know if you need any help.