The calculated distance (air line) between Maisons-Alfort and Boissy-Saint-Léger is approximately 5 miles respectively 9 kilometers.
By car or train, the actual journey to Boissy-Saint-Léger is certainly longer, as only the direct route (as the crow flies) between Maisons-Alfort and Boissy-Saint-Léger has been calculated here.
Air line (approximately)
9 kilometers
5 nautical miles