The calculated distance (air line) between Phuthaditjhaba and Thaba Nchu is approximately 129 miles respectively 207 kilometers.
By car or train, the actual journey to Thaba Nchu is certainly longer, as only the direct route (as the crow flies) between Phuthaditjhaba and Thaba Nchu has been calculated here.
Air line (approximately)
207 kilometers
112 nautical miles