The calculated distance (air line) between Sŭngjibaegam and Songjianghe is approximately 94 miles respectively 152 kilometers.
By car or train, the actual journey to Songjianghe is certainly longer, as only the direct route (as the crow flies) between Sŭngjibaegam and Songjianghe has been calculated here.
Air line (approximately)
152 kilometers
82 nautical miles