The calculated distance (air line) between Maroantsetra and Antsohihy is approximately 123 miles respectively 198 kilometers.
By car or train, the actual journey to Antsohihy is certainly longer, as only the direct route (as the crow flies) between Maroantsetra and Antsohihy has been calculated here.
Air line (approximately)
198 kilometers
107 nautical miles