The calculated distance (air line) between Saint-Yrieix-la-Perche and Saint-Étienne is approximately 155 miles respectively 249 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-Yrieix-la-Perche and Saint-Étienne has been calculated here.
Air line (approximately)
249 kilometers
134 nautical miles