Flight Paris Charles de Gaulle Airport departs from Paris Paris Charles de Gaulle Airport at 11:15 and arrives at Chicago O'Hare International Airport at 13:15.
The flighttime is about 9h 00m. The distance travelled ("as the bird flies"): 10059 Km. So the average speed is roughly 1118 Km.
There is an 7 hour time difference between Paris and Chicago