Noonan syndrome is featured by short stature, mental retardation, facial dysmorphia, webbed neck, and heart defects. The phenotype has some similarities with Turner syndrome, but the karyotype is normal and males can be affected. We used Bonfils fiberscope for intubation because we suspected the difficult airway. We report the experience of anesthetic management for osteotomy of calcaneonavicular coalition in a patient with Noonan syndrome.