It is good to see full service airlines at Bristol, but the economic reality is that the majority of money made by the airport comes from LCC. Michael O'Leary has moaned time and time again about airports spending money on fancy buildings and putting up fees. When they do this he walks away. Surely the purpose of the walkway has little to do with the environment, but more to do with cutting the cost to airlines. Each Ryanair plane that can be reached on foot from the terminal is one less plane that has to have a coach provided for it and one less cost for the airline. I always seemed to me, if you look at the plans, that the west apron (which the walkway serves) was to be the budget end of the airport with few airbridges, whereas the east apron had a number of airbridges in the plans and space for the 787 and was where the full service operations would be located. In any event the walkway is a vast improvement on the original bus shelter!!