The calculated distance (air line) between Anbyŏn-ŭp and Chaeryŏng-ni is approximately 125 miles respectively 201 kilometers.
By car or train, the actual journey to Chaeryŏng-ni is certainly longer, as only the direct route (as the crow flies) between Anbyŏn-ŭp and Chaeryŏng-ni has been calculated here.
Air line (approximately)
201 kilometers
109 nautical miles