The calculated distance (air line) between Málaga and La Línea de la Concepción is approximately 64 miles respectively 103 kilometers.
By car or train, the actual journey to La Línea de la Concepción is certainly longer, as only the direct route (as the crow flies) between Málaga and La Línea de la Concepción has been calculated here.
Air line (approximately)
103 kilometers
56 nautical miles