The calculated distance (air line) between Tor Lupara and Rignano Flaminio is approximately 16 miles respectively 26 kilometers.
By car or train, the actual journey to Rignano Flaminio is certainly longer, as only the direct route (as the crow flies) between Tor Lupara and Rignano Flaminio has been calculated here.
Air line (approximately)
26 kilometers
14 nautical miles