The calculated distance (air line) between San Sebastián de Mariquita and La Vega is approximately 40 miles respectively 65 kilometers.
By car or train, the actual journey to La Vega is certainly longer, as only the direct route (as the crow flies) between San Sebastián de Mariquita and La Vega has been calculated here.
Air line (approximately)
65 kilometers
35 nautical miles