The calculated distance (air line) between Yakassé-Feyassé and Gagnoa is approximately 183 miles respectively 295 kilometers.
By car or train, the actual journey to Gagnoa is certainly longer, as only the direct route (as the crow flies) between Yakassé-Feyassé and Gagnoa has been calculated here.
Air line (approximately)
295 kilometers
159 nautical miles