The calculated distance (air line) between Saint-Étienne and Chasse-sur-Rhône is approximately 23 miles respectively 36 kilometers.
By car or train, the actual journey to Chasse-sur-Rhône is certainly longer, as only the direct route (as the crow flies) between Saint-Étienne and Chasse-sur-Rhône has been calculated here.
Air line (approximately)
36 kilometers
20 nautical miles