The process of aircraft refueling has crucial impact in the performance of an airport. It is in fact of common knowledge that one of the most important indicators for benchmarking an airport is the punctuality of flights departure. To assure high results, the airplane service activities such as passengers boarding, baggage handling and aircraft refueling must not delay one another and the overall departure time. The scope of the proposed study is to produce an instrument capable of simulating the process of the aircraft refueling in the airport environment and to consider different scenarios and evaluate their impact in the overall performance. This tool has significant relevance for the company whom process we have analyzed, allowing it to be able also to evaluate easily and in a short period of time complex changes in the process.