The calculated distance (air line) between Montigny-lès-Cormeilles and Conflans-Sainte-Honorine is approximately 5 miles respectively 8 kilometers.
By car or train, the actual journey to Conflans-Sainte-Honorine is certainly longer, as only the direct route (as the crow flies) between Montigny-lès-Cormeilles and Conflans-Sainte-Honorine has been calculated here.
Air line (approximately)
8 kilometers
4 nautical miles