The main objective of this document is to make an analysis of the possible applications an UAV could have within an airport field, as well as the UAV features for each application and the operational requirements in such an environment. It has been proposed for different activities, such as calibration of air navigation aids, runway inspections or fire fighting among others. Additionally, a study of the impact on Barcelona-El Prat Airport of the Amazon Logistic Center, located at Mas Blau II industrial park at El Prat de LLobregat, has been made. Amazon wants to implement UAV for the delivery of goods. Located so near to the airport and, specially, to aircraft descent and ascent paths, it is necessary to bear in mind different factors such as flying altitude, heading and other flight restrictions to guarantee airport and aircraft operational activities and also drone security. The use of UAV within the airport field is beneficial because reduces contamination levels considerably, perform tasks more efficiently and increase operations security and safety levels. This study has taken as a reference Barcelona-El Prat Airport, but it is intended to be applied at any Spanish airport.