What is the fuel consumption per mile for a full CEO A320? I’m writing an essay as part of my GCSE HPQ and one of the statistics I need to base my research and answer on is the fuel consumption per mile or kilometre for a CEO A320.
It doesn’t have to take into account onboard weight like pax and luggage (however if there is someone with that knowledge it would be greatly appreciated) and it would be a normal flight, so both engines running around 50% or whatever cruise speed is and there are no faults with the engines.
Preferably I would like to know it on a plane with tip Fences on the wings but if someone knows the answer for blended winglets instead then it will still be greatly appreciated.
For some general numbers, you can look at the fuel economy tables on Wikipedia. They tell you an A320 flying a 1000 NM flight at typical payload will burn 3.13 kg/km (11.1 lb/mi) of fuel. For a 2151 NM flight, it will burn 2.91 kg/km (10.3 lb/mi) of fuel.
As already indicated in the comments, the fuel burn depends on the payload (and to some extend of course the route length). To get more realistic values, you can use the Breguet equation as shown in Peter Kämpf's answer. When plugging in different values for the payload and flight range (all at 3t fuel reserves), you get these fuel burns:

Since you asked about fuel consumption per distance, we can just divide by the trip distance and get this:

These numbers are somewhat smaller than the numbers from the Wikipedia table. The difference is likely caused by additional fuel burn for the takeoff and initial climb.