The calculated distance (air line) between Muang Phônsavan and Luang Prabang is approximately 74 miles respectively 119 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 Phônsavan and Luang Prabang has been calculated here.
Air line (approximately)
119 kilometers
64 nautical miles