Smart Airport concept is the future of Airport operation and it may dramatically change the industry towards modern technology adaptation. This study mainly focuses on the Smart airport applications in to passenger terminal process. Literature scattered on different sources have been summarised to explain the features of smart airport with practical cases in global context. Empirical indications on implementation of the smart airport applications discussed based on practical implications of airport operations. Special attention given to the cases of the best performing major airports in Asia, Middle East & Europe. This study contribute to the field of academia and industry by identifying the advantages of smart airport implementation under the key areas of Aviation Security, Passenger Convenience, Operational Efficiency and Optimizing Limited resources. Further implantation methodology under passenger, baggage handling & regulatory controls have been discussed in this paper. Finally key challenges in implementation of the smart airport concept has been addressed and concludes with empirical justifications highlighting future research priorities on implementing the concept.