If you drive to the airfield, you're told to put aside 2 to 4 hours; 4 hours being more likely at weekends. If you take the free pick-up, the entire process will take around three quarters of a day with a 6am start. Although you're in the air for just minutes, the process takes long because of the paperwork, getting into the tandem parachute, and simply waiting until its your turn. Things can take longer at peak seasonal times.