The calculated distance (air line) between s'Arenal and L'Hospitalet de Llobregat is approximately 133 miles respectively 214 kilometers.
By car or train, the actual journey to L'Hospitalet de Llobregat is certainly longer, as only the direct route (as the crow flies) between s'Arenal and L'Hospitalet de Llobregat has been calculated here.
Air line (approximately)
214 kilometers
115 nautical miles