The nearest airport is KMI - Miyazaki, located 34.8 km east of Koiwaya.
Other airports nearby include KOJ - Kagoshima (36.7 km west), KMJ - Kumamoto (104.3 km north), TNE - New Tanegashima (145.7 km south), NGS - Nagasaki (156.2 km north west),
Nearby towns ::
Nojiri (4.0km north east) //
Nukumizu (4.0km south east) //
Takasaki-shinden (5.8km south) //
Kurisu (5.8km north) //
Takaharu (6.3km west) //
Tsuruzako (8.4km north west) //
Arimizu (8.8km south east) //
[all distances 'as the bird flies' and approximate]