The current systematic framework of aviation has developed complex air transport systems where reliability and performance are sensitive and instantly adaptive to the supply side due to the growing and elevated degree of demand in aviation market circumstances. The role of quality measurements has increased. Determining quality performance indicators is difficult because of the system's uniqueness, interdependency, and unsupportable characteristics. This is accomplished by using the 'analytical hierarchy process (AHP)' by developing a survey based on a three-level hierarchical model of the air transport supply-side quality dispersed among four groups of aviation professionals, namely 1) pilots 2) ATCOs 3) aircraft engineers, and 4) aviation managers. The scope of this study is to analyse the crucial components of the present air transportation system and draw a distinction between all the current system components.