The calculated distance (air line) between Épinay-sur-Seine and Marne La Vallée is approximately 17 miles respectively 27 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 Épinay-sur-Seine and Marne La Vallée has been calculated here.
Air line (approximately)
27 kilometers
15 nautical miles