The calculated distance (air line) between Maisons-Laffitte and Conflans-Sainte-Honorine is approximately 4 miles respectively 6 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 Maisons-Laffitte and Conflans-Sainte-Honorine has been calculated here.
Air line (approximately)
6 kilometers
4 nautical miles