This entry explores the possible use of cloud computing within various aviation systems. An aviation services cloud infrastructure is proposed in order to provide Cloud Computing (CC) to the aviation end user. Such short term applications of CC are reviewed as for real-time flight data and cockpit data storage and analysis. A long term application of CC for an artificial intelligence based robotic autonomous aircraft is reviewed. CC technology has the potential to greatly benefit aviation missions due to scalability, customizability, and outreach. There are a myriad of possible applications also within the aerospace defence community in terms of long range intelligence gathering and data processing in much less time than the current technology requires and at a significantly lower cost by pooling various infrastructures computing power.