Mueang Sakon Nakhon - Kusuman - Kut Bak - Phanna Nikhom - Phang Khon - Waritchaphum - Nikhom Nam Un - Wanon Niwat - Kham Ta Kla - Ban Muang - Akat Amnuai - Sawang Daen Din - Song Dao - Tao Ngoi - Khok Si Suphan - Charoen Sin - Phon Na Kaeo - Phu Phan