Flight Hartsfield Jackson International Airport departs from Atlanta Hartsfield Jackson International Airport at 20:15 and arrives at Paris Paris Charles de Gaulle Airport at 10:45.
The flighttime is about 8h 30m. The distance travelled ("as the bird flies"): 9693 Km. So the average speed is roughly 1140 Km.
There is an 6 hour time difference between Atlanta and Paris