RE: Airport charges

landing fees depend of different factors: weight, type of plane,
time on platform and so on. In spain all taxes are fixed by Aena (statal airports. No private airports at all) and are slightly similar in al airports of the net. This means, no competition betweens airports and a certain monopolistic situation. In northwest there are three terminals for a small number of passengers (all no profitable at all) and with a great competence in terms of getting passengers from OPO. An important income where technical stops from north europe in planes going to the Canary Isles and stopped to refuel. These are moving to
Portugal where fees are much more reduced.