The calculated distance (air line) between Bucaramanga and San Antonio del Táchira is approximately 66 miles respectively 107 kilometers.
By car or train, the actual journey to San Antonio del Táchira is certainly longer, as only the direct route (as the crow flies) between Bucaramanga and San Antonio del Táchira has been calculated here.
Air line (approximately)
107 kilometers
58 nautical miles