The calculated distance (air line) between L'Hospitalet de Llobregat and El Prat de Llobregat is approximately 2 miles respectively 4 kilometers.
By car or train, the actual journey to El Prat de Llobregat is certainly longer, as only the direct route (as the crow flies) between L'Hospitalet de Llobregat and El Prat de Llobregat has been calculated here.
Air line (approximately)
4 kilometers
2 nautical miles