The calculated distance (air line) between São Luís and Vitória do Mearim is approximately 75 miles respectively 121 kilometers.
By car or train, the actual journey to Vitória do Mearim is certainly longer, as only the direct route (as the crow flies) between São Luís and Vitória do Mearim has been calculated here.
Air line (approximately)
121 kilometers
65 nautical miles