The calculated distance (air line) between Neietsu and Uijeongbu-si is approximately 87 miles respectively 140 kilometers.
By car or train, the actual journey to Uijeongbu-si is certainly longer, as only the direct route (as the crow flies) between Neietsu and Uijeongbu-si has been calculated here.
Air line (approximately)
140 kilometers
75 nautical miles