The calculated distance (air line) between Nong Wua So and Sakon Nakhon is approximately 104 miles respectively 167 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 Wua So and Sakon Nakhon has been calculated here.
Air line (approximately)
167 kilometers
90 nautical miles