The calculated distance (air line) between Mandelieu-la-Napoule and Villeurbanne is approximately 184 miles respectively 296 kilometers.
By car or train, the actual journey to Villeurbanne is certainly longer, as only the direct route (as the crow flies) between Mandelieu-la-Napoule and Villeurbanne has been calculated here.
Air line (approximately)
296 kilometers
160 nautical miles