A few airlines have announced to take their older planes out of service due to high fuel costs (LH and the 737 for example). What really would interest me is how much more fuel efficient is a 1yo A319-112 compared to a 20yo 737-55S? The reason why I would like to compare those two aircraft is that I know of a few airlines which have a relatively new and large Airbus fleet and a few 737 classics, assuming the 737 will probably be replaced with Airbus models once taken out of service. Is anyone able to provide any figures?
I have tried to find the information on the net but unfortunately wasn’t very successful.
Many thanks for your help!