A jumbo jet uses around 5,000 gallons (almost 19,000 liters) of fuel to take off and climb to cruising altitude. This is about a tenth of its entire fuel capacity. Once airborne, most jumbo jets use about five gallons (19 liters) of fuel per mile. It gets more miles per gallon (or liter) the longer the airplane is in the air, since it gets lighter as it burns fuel.

More facts about jets::