how much fuel does an airline uses per mile, and how much does aviation fuel cost per litre.?

Answer 1

You can figure this by getting the specs off the web. For example, the Boeing 737-600 (http://www.boeing.com/commercial/737family/pf/pf_600tech.html)
Has a range of 5648 km and a fuel capacity of 26020 liters using 4.6 liter/km or 2 gal/mile. As far as the cost, the price of aviation fuel, gasoline and diesel are pretty much all the same price which os set by the price of crude oil. The plane carries about 120 passengers so at $3 per gallon, the fuel cost to fly cross country (3000 miles) is about $150 per passenger.

Answer 2

This is a tough question because you'll need some other data. Aircraft use substantially varying amounts of fuel in the process of climbing, versus maintaining altitude. The type of plane, and the load the plane is carrying affects it. Fuel costs vary from area to area, and from country to country – and also, aviation fuel comes in different grades, and has different prices from different companies. The last official estimates I saw said that about 30% of aviation operational costs are now fuel.

To give you a current spread of costs in the Southwest Region of the USA only, JetA runs from about $3 per gallon to around $5 per gallon. 100LL runs from about 3.25 – almost $6 per gallon.

I hope this helps a bit.