Modeling parameters of aero gas turbine engines depending on flight conditions is potently carried out by several approaches due to their key role in aviation. Recently, characteristics of the engine have been revealed by energy and exergy metrics. In this study, efficiency modeling based on flight conditions is performed for the PW127-E turboprop engine and its components employed in regional aircraft, which facilitates prediction of efficient flight points. Before exergetic analysis, thermodynamics data is obtained by employing real parametric cycle analyses related to each component. Thanks to regression analysis, modeling of energy and exergy parameters is performed based on cycle data according to different Mach numbers ranging between 0-0.6 and altitudes ranging between 0-6 km. Accordingly, exergy efficiency of combustor changes between 71.37% and 74.37% whereas that of power turbine varies between 95.46% and 96.27%. However, exergy destruction of those ranges between 44.66 kW-113.02 kW and 1508 kW-3121 kW, respectively. On the other hand, R2 value of combustor exergy efficiency is computed as 0.9301 at linear model and 0.9997 at quadratic model whereas that of exergy efficiency of power turbine is measured as 0.9871 and 1, respectively. The results indicate that the modeling of the exergetic parameters of components based on flight conditions exhibits distinct pattern. Namely, some components demonstrate nearly linear behavior, whereas others conform to a quadratic model. Thanks to the low model error for exergy, this study significantly contributed to helping in the prediction of the exergetic parameters of components based on flight conditions.