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withered_preacher
hugo7
gbj_tester
As I said before, your first order approximation for resource consumption is how much something costs. Flying is a thing because it's much cheaper than sailing.
Just in terms of fuel burn, modern wide body jet airliners are of the order of burning 1-2 times your own weight in jet fuel for an East Coast to Western Europe crossing (100-200kg, depending on aircraft type, capacity and load factor). QE2 burns nearly 2 tons of bunker oil per passenger to get from NY to Southampton.
For comparison, a single-occupant motor car doing 50mpg burns about 250kg of petrol or diesel to cover the same distance.