Flight Love Field Airport departs from Dallas Love Field Airport at 10:15 and arrives at Atlanta Hartsfield Jackson International Airport at 14:40.The flight has a short stop at New Orleans.
The flighttime is about 3h 25m. The distance travelled ("as the bird flies"): 1381 Km. So the average speed is roughly 404 Km.
There is an 1 hour time difference between Dallas and Atlanta