The calculated distance (air line) between Nong Kung Si and Sakon Nakhon is approximately 66 miles respectively 107 kilometers.
By car or train, the actual journey to Sakon Nakhon is certainly longer, as only the direct route (as the crow flies) between Nong Kung Si and Sakon Nakhon has been calculated here.
Air line (approximately)
107 kilometers
58 nautical miles