The calculated distance (air line) between Yaroslavl and Zheleznodorozhnyy is approximately 148 miles respectively 238 kilometers.
By car or train, the actual journey to Zheleznodorozhnyy is certainly longer, as only the direct route (as the crow flies) between Yaroslavl and Zheleznodorozhnyy has been calculated here.
Air line (approximately)
238 kilometers
129 nautical miles