The calculated distance (air line) between Attapeu and Phibun Mangsahan is approximately 111 miles respectively 179 kilometers.
By car or train, the actual journey to Phibun Mangsahan is certainly longer, as only the direct route (as the crow flies) between Attapeu and Phibun Mangsahan has been calculated here.
Air line (approximately)
179 kilometers
96 nautical miles