The calculated distance (air line) between Luc-la-Primaube and Montpellier is approximately 83 miles respectively 133 kilometers.
By car or train, the actual journey to Montpellier is certainly longer, as only the direct route (as the crow flies) between Luc-la-Primaube and Montpellier has been calculated here.
Air line (approximately)
133 kilometers
72 nautical miles