The calculated distance (air line) between Talant and Saint-Quentin-en-Yvelines is approximately 170 miles respectively 274 kilometers.
By car or train, the actual journey to Saint-Quentin-en-Yvelines is certainly longer, as only the direct route (as the crow flies) between Talant and Saint-Quentin-en-Yvelines has been calculated here.
Air line (approximately)
274 kilometers
148 nautical miles