The calculated distance (air line) between San Sebastián de Mariquita and Floridablanca is approximately 179 miles respectively 288 kilometers.
By car or train, the actual journey to Floridablanca is certainly longer, as only the direct route (as the crow flies) between San Sebastián de Mariquita and Floridablanca has been calculated here.
Air line (approximately)
288 kilometers
155 nautical miles