The calculated distance (air line) between Ti Port-de-Paix and Trou du Nord is approximately 57 miles respectively 92 kilometers.
By car or train, the actual journey to Trou du Nord is certainly longer, as only the direct route (as the crow flies) between Ti Port-de-Paix and Trou du Nord has been calculated here.
Air line (approximately)
92 kilometers
49 nautical miles