So here are the numbers for New York to Paris. I used a 737 Max 7 for this since the max range is right about the same distance so the math is easy and the 737 Max is a fairly efficient plane but an A321 neo would be similar. Albeit a 737 or A321 neo are not planes that you would fly New York to Paris in.
So it is looking like jet fuel is around $2 a gallon for airlines right now.[1] A 737 Max takes a total of 6,820 gallons.[2] Since the flight from New York to Paris would be almost the max range we can assume all of it would be burned to transport the 172 passengers.
So ($2 * 6820 Gallons) / 172 People = $79 per person in fuel.
So it is looking like jet fuel is around $2 a gallon for airlines right now.[1] A 737 Max takes a total of 6,820 gallons.[2] Since the flight from New York to Paris would be almost the max range we can assume all of it would be burned to transport the 172 passengers.
So ($2 * 6820 Gallons) / 172 People = $79 per person in fuel.
[1] https://www.statista.com/statistics/197689/us-airline-fuel-c...
[2] https://en.wikipedia.org/wiki/Boeing_737_MAX