The calculated distance (air line) between Muang Phôn-Hông and Luang Prabang is approximately 98 miles respectively 158 kilometers.
By car or train, the actual journey to Luang Prabang is certainly longer, as only the direct route (as the crow flies) between Muang Phôn-Hông and Luang Prabang has been calculated here.
Air line (approximately)
158 kilometers
85 nautical miles