The calculated distance (air line) between Audun-le-Tiche and Mont-Saint-Martin is approximately 9 miles respectively 15 kilometers.
By car or train, the actual journey to Mont-Saint-Martin is certainly longer, as only the direct route (as the crow flies) between Audun-le-Tiche and Mont-Saint-Martin has been calculated here.
Air line (approximately)
15 kilometers
8 nautical miles