The calculated distance (air line) between Morcellement Saint André and Plaine Magnien is approximately 26 miles respectively 41 kilometers.
By car or train, the actual journey to Plaine Magnien is certainly longer, as only the direct route (as the crow flies) between Morcellement Saint André and Plaine Magnien has been calculated here.
Air line (approximately)
41 kilometers
22 nautical miles