The calculated distance (air line) between Cheongju-si and Yangp'yŏng is approximately 59 miles respectively 95 kilometers.
By car or train, the actual journey to Yangp'yŏng is certainly longer, as only the direct route (as the crow flies) between Cheongju-si and Yangp'yŏng has been calculated here.
Air line (approximately)
95 kilometers
51 nautical miles