The nearest airport is OIR - Okushiri, located 40.6 km west of Nagaiso.
Other airports nearby include HKD - Hakodate (85.2 km south east), SPK - Chitose (161.6 km north east), SPK - Sapporo (162.3 km north east), CTS - Sapporo New Chitose (162.5 km north east),