The calculated distance (air line) between Saint-Laurent-de-la-Salanque and Montpellier is approximately 73 miles respectively 118 kilometers.
By car or train, the actual journey to Montpellier is certainly longer, as only the direct route (as the crow flies) between Saint-Laurent-de-la-Salanque and Montpellier has been calculated here.
Air line (approximately)
118 kilometers
63 nautical miles