The calculated distance (air line) between Centre de Flacq and Montagne Blanche is approximately 8 miles respectively 12 kilometers.
By car or train, the actual journey to Montagne Blanche is certainly longer, as only the direct route (as the crow flies) between Centre de Flacq and Montagne Blanche has been calculated here.
Air line (approximately)
12 kilometers
7 nautical miles