The calculated distance (air line) between Jettingen-Scheppach and Wiesbaden is approximately 153 miles respectively 246 kilometers.
By car or train, the actual journey to Wiesbaden is certainly longer, as only the direct route (as the crow flies) between Jettingen-Scheppach and Wiesbaden has been calculated here.
Air line (approximately)
246 kilometers
133 nautical miles