The calculated distance (air line) between Formosa and San José de los Arroyos is approximately 100 miles respectively 161 kilometers.
By car or train, the actual journey to San José de los Arroyos is certainly longer, as only the direct route (as the crow flies) between Formosa and San José de los Arroyos has been calculated here.
Air line (approximately)
161 kilometers
87 nautical miles