The calculated distance (air line) between Higashi-ōsaka and Ichinomiya is approximately 82 miles respectively 131 kilometers.
By car or train, the actual journey to Ichinomiya is certainly longer, as only the direct route (as the crow flies) between Higashi-ōsaka and Ichinomiya has been calculated here.
Air line (approximately)
131 kilometers
71 nautical miles