The calculated distance (air line) between Montornès del Vallès and Horta-Guinardó is approximately 10 miles respectively 16 kilometers.
By car or train, the actual journey to Horta-Guinardó is certainly longer, as only the direct route (as the crow flies) between Montornès del Vallès and Horta-Guinardó has been calculated here.
Air line (approximately)
16 kilometers
9 nautical miles