The calculated distance (air line) between Dalian and Beidaihehaibin is approximately 128 miles respectively 206 kilometers.
By car or train, the actual journey to Beidaihehaibin is certainly longer, as only the direct route (as the crow flies) between Dalian and Beidaihehaibin has been calculated here.
Air line (approximately)
206 kilometers
111 nautical miles