The calculated distance (air line) between Dien Bien Phu and Muang Phônsavan is approximately 134 miles respectively 216 kilometers.
By car or train, the actual journey to Muang Phônsavan is certainly longer, as only the direct route (as the crow flies) between Dien Bien Phu and Muang Phônsavan has been calculated here.
Air line (approximately)
216 kilometers
117 nautical miles