The calculated distance (air line) between Boulsa and Fada N'gourma is approximately 76 miles respectively 122 kilometers.
By car or train, the actual journey to Fada N'gourma is certainly longer, as only the direct route (as the crow flies) between Boulsa and Fada N'gourma has been calculated here.
Air line (approximately)
122 kilometers
66 nautical miles