This study investigates the effects of fiber orientation and inclusion materials ( ), silica, and rubber) on the aeroelastic properties of a composite wing structure, including natural frequency, flutter speed, and damping ratio. A MATLAB-based model was created to analyze the dynamic responses, and the results were confirmed with ANSYS simulations. It was found that fiber orientation significantly influences structural dynamics, with zero fiber providing the highest natural frequency and flutter resistance; increasing the fiber angle reduces both. Adding raised flutter speed by 10.8%, while rubber doubled the damping ratio compared to the pure composite at a 90° fiber orientation. Silica improved both damping and stiffness characteristics in a balanced way. These results are important for optimizing composite wing designs to improve aeroelastic performance across different flight conditions.