The calculated distance (air line) between Londrina and Santo Antônio da Platina is approximately 69 miles respectively 111 kilometers.
By car or train, the actual journey to Santo Antônio da Platina is certainly longer, as only the direct route (as the crow flies) between Londrina and Santo Antônio da Platina has been calculated here.
Air line (approximately)
111 kilometers
60 nautical miles