The calculated distance (air line) between Sŭngho 1-tong and Yŏngbyŏn is approximately 58 miles respectively 93 kilometers.
By car or train, the actual journey to Yŏngbyŏn is certainly longer, as only the direct route (as the crow flies) between Sŭngho 1-tong and Yŏngbyŏn has been calculated here.
Air line (approximately)
93 kilometers
50 nautical miles