The calculated distance (air line) between L'Haÿ-les-Roses and Marne La Vallée is approximately 14 miles respectively 23 kilometers.
By car or train, the actual journey to Marne La Vallée is certainly longer, as only the direct route (as the crow flies) between L'Haÿ-les-Roses and Marne La Vallée has been calculated here.
Air line (approximately)
23 kilometers
13 nautical miles