The nearest airport is BKI - Kota Kinabalu Intl, located 116.2 km south west of Rundumun.
Other airports nearby include LBU - Labuan (226.9 km south west), LDU - Lahad Datu (269.4 km south east), BWN - Brunei Intl (280.1 km south west), LMN - Limbang (285.4 km south west),