- Niihama Airport is a small regional airport located in Niihama City, Ehime Prefecture, Japan. It serves as a domestic airport, operating flights to and from Tokyo's Haneda Airport and Osaka's Itami Airport. The airport opened in 2021, replacing the older Iyo-Niihama Airport. It is primarily used by business travelers and tourists visiting the Ehime Prefecture. The airport facilities include a terminal building, parking area, and a small runway capable of accommodating small to medium-sized aircraft.