I'll just add this...
From
MapQuest.com:
Huntsville International Airport (HSV)
1000 Glenn Hearn Blvd SW
Huntsville, AL 35824
Hartsfield-Jackson Atlanta International Airport (ATL)
6000 N Terminal Pkwy # 435
Atlanta, GA 30320
Total Estimated Time: 3 hours 50 minutes
Total Estimated Distance: 239.14 miles