The calculated distance (air line) between Innoshima and Nishinomiya-hama is approximately 126 miles respectively 203 kilometers.
By car or train, the actual journey to Nishinomiya-hama is certainly longer, as only the direct route (as the crow flies) between Innoshima and Nishinomiya-hama has been calculated here.
Air line (approximately)
203 kilometers
109 nautical miles