The calculated distance (air line) between Yatsuomachi-higashikumisaka and Honchō is approximately 170 miles respectively 274 kilometers.
By car or train, the actual journey to Honchō is certainly longer, as only the direct route (as the crow flies) between Yatsuomachi-higashikumisaka and Honchō has been calculated here.
Air line (approximately)
274 kilometers
148 nautical miles