The calculated distance (air line) between Higashi-ōsaka and Tondabayashichō is approximately 12 miles respectively 19 kilometers.
By car or train, the actual journey to Tondabayashichō is certainly longer, as only the direct route (as the crow flies) between Higashi-ōsaka and Tondabayashichō has been calculated here.
Air line (approximately)
19 kilometers
10 nautical miles