The calculated distance (air line) between Pont-Audemer and Saint-Quentin-en-Yvelines is approximately 79 miles respectively 127 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 Pont-Audemer and Saint-Quentin-en-Yvelines has been calculated here.
Air line (approximately)
127 kilometers
68 nautical miles