The calculated distance (air line) between Thanh Hóa and Muang Phônsavan is approximately 169 miles respectively 272 kilometers.
By car or train, the actual journey to Muang Phônsavan is certainly longer, as only the direct route (as the crow flies) between Thanh Hóa and Muang Phônsavan has been calculated here.
Air line (approximately)
272 kilometers
147 nautical miles