The calculated distance (air line) between Sevilla and La Línea de la Concepción is approximately 91 miles respectively 146 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 Sevilla and La Línea de la Concepción has been calculated here.
Air line (approximately)
146 kilometers
79 nautical miles