The calculated distance (air line) between Sainyabuli and Muang Phôn-Hông is approximately 70 miles respectively 113 kilometers.
By car or train, the actual journey to Muang Phôn-Hông is certainly longer, as only the direct route (as the crow flies) between Sainyabuli and Muang Phôn-Hông has been calculated here.
Air line (approximately)
113 kilometers
61 nautical miles