The calculated distance (air line) between Saint-Sulpice-la-Pointe and Saint-Étienne is approximately 176 miles respectively 283 kilometers.
By car or train, the actual journey to Saint-Étienne is certainly longer, as only the direct route (as the crow flies) between Saint-Sulpice-la-Pointe and Saint-Étienne has been calculated here.
Air line (approximately)
283 kilometers
152 nautical miles