The nearest airport is LOE - Loei, located 93.4 km north of Khon San.
Other airports nearby include UTH - Udon Thani (126.0 km north east), VTE - Vientiane Wattay Intl (166.6 km north east), PHS - Phitsanulok (175.6 km west), NAK - Nakhon Ratchasima Khorat (186.9 km south),