👉 Pteronophobia, also known as pterophobia, is a phobia characterized by excessive fear or anxiety of flying. People with this condition are often afraid of heights and of flying, especially when they are in airplanes or on airplanes. Pteronophobia can be triggered by the sight of airplane wings or by the feeling of being stuck in the air. It can also lead to avoidance of flying altogether, or it can manifest as a chronic fear that persists for long periods of time.