The calculated distance (air line) between Phan Thiết and Vĩnh Long is approximately 152 miles respectively 245 kilometers.
By car or train, the actual journey to Vĩnh Long is certainly longer, as only the direct route (as the crow flies) between Phan Thiết and Vĩnh Long has been calculated here.
Air line (approximately)
245 kilometers
132 nautical miles