The calculated distance (air line) between Antu and Sŭngjibaegam is approximately 129 miles respectively 207 kilometers.
By car or train, the actual journey to Sŭngjibaegam is certainly longer, as only the direct route (as the crow flies) between Antu and Sŭngjibaegam has been calculated here.
Air line (approximately)
207 kilometers
112 nautical miles